Product Catalog

Packaged Rooftop Air Conditioners

IntelliPak™ — S*HL, S*HK
20 to 130 Tons — Air-Cooled Condensers — 60 Hz

June 2015 RT-PRC036T-EN

IntelliPak™ Rooftop Air Conditioners
Designed for Today and Beyond
Innovative technology and an impressive lineup of features make the Trane® IntelliPak™ rooftop
line the number one choice for today and the future. The rooftop unit control modules (UCM), an
innovative array of microprocessor controllers, coordinates the actions of the IntelliPak™ II rooftop
for reliable and efficient operation and allows for standalone operation of the unit. Access to the
unit controls, via a human interface panel, provides a high degree of control, superior monitoring
capability, and unmatched diagnostic information.
Optionally, for centralized building control on-site, or from a remote location, IntelliPak™ can be
configured for direct communication with a Trane® Tracer® building management system or a
third party LonTalk® or BACnet™ building management system, using a twisted pair of wires. With
one of these systems, the IntelliPak™ status data and control adjustment features can be
conveniently monitored from a central location. IntelliPak™ has the technology and flexibility to
bring total comfort to every building space.

Note: AHRI certifies up to 63 ton units

© 2015 Trane All rights reserved RT-PRC036T-EN

 IntelliPak™ Rooftop Air Conditioners

Copyright
This document and the information in it are the property of Trane, and may not be used or
reproduced in whole or in part without written permission. Trane reserves the right to revise this
publication at any time, and to make changes to its content without obligation to notify any person
of such revision or change.

Trademarks
All trademarks referenced in this document are the trademarks of their respective owners.

Revision Summary
RT-PRC036T-EN (June 2015)
• Added ultra modulating gas heat, removed limited modulating gas heat
• Updated supply fan performance graphs, 40-55 Ton DDP
• Updated Start-Up for ultra modulating gas heat
• Added High Entering Return Temperature Applications information to Applications
Considerations
• Updated General Data for ultra modulating gas heat
• Updated Component Static Pressure Drop tables
• Updated Options for ultra modulating gas heat

RT-PRC036T-EN 3
Table of Contents
Features and Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Standard Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Optional Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Features Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Integrated Rooftop Systems: Profitable, Simple . . . . . . . . . . . . . . . . . . . . . 11
Integrated Comfort with Trane® Tracer® TCI . . . . . . . . . . . . . . . . . . . . . . . 11
Trane® Control System with LonTalk® and BACnet® . . . . . . . . . . . . . . . . 12
Building Pressure Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Microchannel Condenser Coils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Rapid Restart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Ultra Modulating Gas Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Energy Savings, Improved IAQ and Comfort . . . . . . . . . . . . . . . . . . . . . . . . 17
Application Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Exhaust/Return Fan Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Exhaust/Return Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Application Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Horizontal Discharge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Selection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Model Number Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
General Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Performance Adjustment Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Gross Cooling Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Heating Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Supply Fan Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Component Static Pressure Drops . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Fan Drive Selections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Rapid Restart (RR) Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Variable Air Volume (VAV) Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Single Zone Variable Air Volume (SZVAV) Only . . . . . . . . . . . . . . . . . . . . 120
Constant Volume (CV) Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
CV, SZVAV, and VAV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Electrical Service Sizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135

4 RT-PRC036T-EN
 Dimensional Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Field-Installed Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Mechanical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Casing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Refrigeration System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Air-Cooled Condensing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Air Handling System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Exhaust Air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Return Air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Outside Air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
Heating System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Miscellaneous Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164

RT-PRC036T-EN 5
Features and Benefits
Standard Features
• 20 to 130 ton industrial/ commercial rooftops
• R-410A refrigerant
• ASHRAE 90.1 - 2010 efficiency compliant
• cULus approval on standard options

Controls
• Fully integrated, factory-installed/commissioned microelectronic controls
• Unit-mounted human interface panel with a 2 line x 40 character English display and a
16-function keypad that includes Custom, Diagnostics, and Service Test mode menu keys
• CV or VAV, or single zone VAV control
• Low ambient compressor lockout control on units with economizers
• Frostat™ coil frost protection on all units
• Daytime warm-up (occupied mode) on VAV models and morning warm-up operation on all
units with heating options
• Supply air static over-pressurization protection on units with VFDs
• Return air static over-pressurization protection on units with return fan option
• Supply airflow proving
• Exhaust/return airflow proving on units with exhaust/return option
• Supply air tempering control
• Supply air heating control on CV or VAV units with discharge temp control modulating gas, hot
water or steam heat units
• Mappable sensors and setpoint sources
• Occupied/unoccupied switching
• Emergency stop input
• Low charge protection
• Dirty filter switch
• Phase monitor (20 to 75 ton)
• Humidification input
• Freeze avoidance

Refrigeration
• Trane® 3-D® scroll compressors or eFlex™ variable speed compressors on 40 to 70 ton units
• Compressor or circuit lead/lag depending on unit
• Intertwined evaporator coil circuiting for full face area operation at part load conditions
• Microchannel condenser coil
• Liquid and discharge service valves

Cabinet
• Hinged access doors on control panel, filter section, and gas heat section
• Horizontal discharge/return duct connections (SX, SL, SS, SF models)
• Pitched roof over air handler section
• Heavy-gauge, single-piece construction base rails
• Meets salt spray testing in accordance to ASTM B117 Standard

Mechanical
• Forward-curved supply fans or eDrive™ direct drive plenum fans (20 to 75 ton)
• Airfoil supply fans (90 to 130 ton)
• Stainless steel flue stack on gas heat units

6 RT-PRC036T-EN
 Features and Benefits

• Two-inch high efficiency throwaway filters

• Two-inch spring fan isolation

Optional Features
For a comprehensive listing of standard options, special options, and accessories, see “Options,”
p. 150, Table 82.

Controls
• Trane® communication interface module: ICS interface control module
• LonTalk® communication interface module
• BACnet® communication interface module
• Remote human interface panel (controls up to four units)
• Five ventilation override sequences
• Generic BAS interface 0-5 VDC and 0-10 VDC
• Variable frequency drive control of supply/exhaust/return fan motor
• Single zone VAV control
• Rapid restart
• High duct temperature thermostats pressurization control
• 0°F low ambient control
• Power supply monitoring (90 to130 ton)
• Correction capacitors
• Economizer fault detection and diagnostics (FDD) control as required by California Title 24
provided with ultra low leak economizers

Refrigeration
• eFlex™ variable speed compressor (40 to 70 ton)
• Hot gas bypass to the evaporator inlet
• Modulating hot gas reheat
• Suction service valves
• Replaceable core filter driers
• High capacity unit (40 to 75 ton)
• High efficiency unit (20 to 75 ton)
• High capacity evaporator coil (90 and 105 tons)
• High efficiency condenser coil (90 ton models)
• Corrosion protected condenser coil
• Copper evaporator coils

Cabinet
• Extended casing (SX models)
• Double wall access doors
• Double wall construction/perforated double wall
• Stainless steel drain pan in evaporator section
• Pitched evaporator drain pan
• Horizontal or roof discharge on certain configurations (20 to 75 tons “L” style units only)
• IntelliPak™ replacement unit (IRU)
• Special paint colors

Mechanical
• eDrive™ direct drive plenum supply fans; 80% or 120% wheel width (20 to 75 tons)
• eDrive™ direct drive plenum design special supply fans; 100% wheel width (50 to 55 tons)

RT-PRC036T-EN 7
Features and Benefits

• Supply fan piezometer for direct drive plenum airflow measurement

• Outside air CFM compensation on VAV units with VFD and economizer
• Barometric relief
• 0-100 percent modulating outside air economizer
• Low leak, and Title 24-rated ultra low leak 0-100 percent modulating outside air economizer
• Ultra low leak power exhaust dampers provided when ultra low leak economizer is ordered with
exhaust options that include motorized exhaust dampers
• Choose from three economizer control options: comparative enthalpy, reference enthalpy, dry
bulb control
• Trane® outside air measurement (Traq™)
• 5 year limited warranty on ultra low leak economizer damper, linkage, and actuator
• 10 year limited warranty on full and ultra modulating gas heat
• 50 percent modulating exhaust with forward-curved fans
• 100 percent modulating exhaust with forward-curved fans
• 100 percent modulating exhaust with FC fans and Statitrac™ direct space sensing building
pressurization control
• 100 percent modulating return with airfoil fans (20 to 75 ton)
• 100 percent modulating return with AF fans and Statitrac™ direct space sensing
building (20 to 75 ton)
• Two-inch spring fan isolation (20 to 75 ton)
• U-frame motors
• Oversized motors
• Motors with internal shaft grounding ring for VFD applications

Filtration
• Filter rack only (no filters)
• High efficiency throwaway filters, MERV 8
• 90 to 95 percent bag filters, MERV 14
• 90 to 95 percent cartridge filters, MERV 14
• Final filters, cartridge filters, MERV 14
• Differential pressure gauge
• Final filter rack only (no filters)

Heat
• Heating options: natural gas, electric, hot water, or steam
• Modulating gas heat, full or ultra

Electrical
• Dual electrical power connection
• Through the door non-fused disconnect with external handle
• Electrical convenience outlet

Field-Installed Accessories
• Roof curbs
• Programmable sensors with night set back - CV and VAV
• Sensors without night set back - CV and VAV
• Remote zone sensors - used for remote sensing with remote panels.
• ICS zone sensors used with Tracer® system for zone control
• Outdoor temperature sensor for units without economizers
• Remote minimum position control for economizer
• Field-installed module kits available for field upgrade of controls

8 RT-PRC036T-EN
 Features and Benefits

• Humidity sensor
• BCI and LCI communication boards
• Air-Fi™ Wireless (WCI)

Features Summary
IntelliPak™ rooftop features make installation and servicing easy — and reliable operation a reality.

Installation Ease
• Factory-installed/commissioned controls
– ease of startup
– single twisted wire pair
– communication for ICS interface
– full unit points access, no field wiring of required points
• Unit-mounted human interface panel standard
– user friendly keypad - edit
– parameters
– through the access door interface
– startup adjustments
– unit-mounted and remote interface panel key pads are identical
• Unit-mounted lifting lugs facilitate installation and can be used as unit tie-down points.

Easy to Service
• The microprocessor unit controls coordinates the operation of the rooftop with quality,
industry-accepted components for service ease.
• Unit-mounted human interface panel standard
– user friendly keypad - edit parameters
– through the access door interface
– startup adjustments
– unit-mounted and remote interface panel key pads are identical
• Modularity of unit control design
– individual replaceable functional boards
• Advanced diagnostics

Reliability
• Advanced diagnostics
• Microprocessor controls
• Built-in safeties
• Modular control design
• cULus approval as standard
• Forward-curved supply and exhaust fans and airfoil supply and return fans are factory
balanced.
• Design-special, direct-drive plenum supply fans reduce components for increased supply fan
reliability.
• Fully insulated and gasketed panels reduce ambient air infiltration.

RT-PRC036T-EN 9
Features and Benefits

• Standard fixed-speed evaporator fan and optional exhaust/return drive offer smooth fan
operation and belt durability.
• Standard with Frostat™ on all units as well as freeze avoidance on hydronic heat units.
• 200,000 hour average fan shaft and motor bearings enhance life of unit.
• Gas heater with free-floating stainless steel heat exchanger relieves stresses of expansion and
contraction. Stainless steel provides corrosion resistance through the entire material thickness.
• Integral condenser subcooler improves efficiency while helping avoid liquid flashing.
• Factory-wired and commissioned controls assure efficient and reliable rooftop operation.
• Trane® Scroll compressors are designed for tough industrial operation and meet demanding
operating conditions both in efficiency and reliability.
• Variable speed compressors are designed to modulate refrigerant flow achieving outstanding
partial load ratings (IEER).
• Standard phase monitors for compressor protection on 20 to 75 ton units.
• Roll-formed construction enhances cabinet integrity and assures a leak proof casing.
• Three-phase, direct-drive condenser fan motors enhance dependability and increase rooftop
life.
• Trane® industrial quality evaporator and condensing coils help increase rooftop life.
• Ultra low leak economizer standard with 5-year limited warranty and functional life of 60,000
opening and closed cycles.

Application Flexibility
• Modularity in design
• Increased offering of standard options
• Generic BAS interface
• Five factory preset/re-definable in the field ventilation override sequences
• Superior Tracer® interface for ICS applications
– factory-installed Trane
• Superior LonTalk® interface for Tracer® and 3rd party applications
– factory or field-installed LonTalk® communication interface
• Superior BACnet® interface for Tracer® SC or 3rd party applications
– factory or field-installed BACnet® communication interface
– Field-installed Wireless Comm through BCI add available
• Unit-mounted or remote human interface panels
– all parameter are editable from the human interface panel
• Traq™ outside air measurement to meet LEED IEQ Credit 1
• Comparative enthalpy, reference enthalpy, or dry bulb control for economizers
• Statitrac™ direct space building pressure control
• Compensated outdoor air control - IAQ
• Factory-installed filter rack includes two-inch throwaway filters.
• CV controls stage both compressors and heat based on space requirements.
• Variable frequency drives (VFD) included with or without bypass control for supply and
exhaust/return fans.
• Dehumidification control with modulating hot gas reheat

10 RT-PRC036T-EN
 Features and Benefits

Integrated Rooftop Systems: Profitable, Simple

Trane® integrated rooftop systems make design and installation of building management systems
cost effective and easy. Trane offers three choices for building management controls: Tracer®
building automation system with a Trane® Control Interface (TCI), LonTalk® Communication
Interface (LCI) or Tracer® SC with BACnet® Communication Interface (BCI).

Integrated Comfort with Trane® Tracer® TCI

The Tracer® TCI Integrated Comfort System (ICS) improves job profit and increases job control by
combining Trane® rooftop units with the Trane® Tracer® building management system. This
integrated system provides total building comfort and control. Some of the primary motivations
for building owners/managers in deciding to purchase a HVAC controls system is energy savings,
cost control, and the convenience of facility automation.

Simplifying the Comfort System

Trane technology and innovation brings more capabilities, more flexibility, and at the same time,
offers equipment and systems that are easy to use, easy to install, commission, and service. The
Tracer® TCI Integrated Comfort system saves time and money by simplifying system design and
system installation. When used with Trane® DDC/VAV boxes (or VariTrane™), system balancing
almost goes away because each VAV box is commission and tested before it leaves the factory. All
the status information and editing data from the rooftop units, VAV boxes, lighting, exhaust and
other auxiliary equipment is available from Tracer® TCI for control, monitoring and service support
of your facility. Tracer®, a family of building automation products from Trane, is designed with
robust, application specific software packages to minimize custom programming requirements
and enable system setup and control through simple editing of parameters in the standard
applications software. Should you select an Integrated Comfort system for your facility, the
accountability for equipment, automation and controls belongs to Trane.
The IntelliPak™ rooftop, as a part of an Integrated Comfort system, provides powerful maintenance
monitoring, control and reporting capabilities. The Tracer® places the rooftop in the appropriate
operating mode for operation for: system on/off, night setback, demand limiting, setpoint
adjustment based on outside parameters and much more. Up to 56 different unit diagnostic
conditions can be monitored through Tracer® to let you know about things like: sensor failures,
loss of supply airflow, and a compressor trip out. Further, the addition of Building Management
Network software offers remote scanning, automatic receipt of alarms, and easy dial-up access to
over 100 various Tracer® sites across town or across the country.

IntelliPak™ Rooftops Monitoring Points Available through Tracer®

• All active rooftop diagnostics
• History of last 20 unit diagnostics
• All system setpoints
• System sensor inputs
• Supply fan mode and status
• VFD speed
• Unit heat/cool mode
• Exhaust fan status
• Exhaust damper position
• Economizer position, minimum position setpoint,
economizing setpoint
• On/off status of each compressor
• Refrigerant evaporator and saturated condenser temperatures
• Hydronic heat valve position
• Electric heat stage status

RT-PRC036T-EN 11
Features and Benefits

• Ventilation override mode status

Tracer® Control Points for IntelliPak™ Rooftops

• Cooling and heating setpoints
• Zone setpoint offsets for use with demand limiting
• Discharge air setpoints
• Supply air pressure setpoint
• Space pressure setpoint
• Zone and outdoor temperature values
• Cooling and heating enable/disable
• Economizer enable/disable
• Economizer setpoint
• Economizer minimum position
• Activation of ventilation override modes
• Diagnostics reset
• Unit priority shutdown
• Timed override activation

IntelliPak™ Rooftops Setup and Configuration Information through Tracer®

• Supply fan mode
• Configuration of supply air reset
• Ventilation override mode configuration
• Default system setpoint values
• Sensor calibration offsets

Trane® Control System with LonTalk® and BACnet®

Interoperability with LonTalk®
The Trane® Tracer® LonTalk® Control Interface (LCI) for IntelliPak™ offers a building automation
control system with outstanding interoperability benefits. LonTalk®, which is an industry standard,
is an open, secure and reliable network communication protocol for controls, created by Echelon
Corporation and adopted by the LonMark Interoperability Association. It has been adopted by
several standards, such as: EIA-709.1, the Electronic Industries Alliance (EIA) Control Network
Protocol Specification and ANSI/ASHRAE 135, part of the American Society of Heating,
Refrigeration, and Air-Conditioning Engineer’s BACnet® control standard for buildings.
Interoperability allows application or project engineers to specify the best products of a given type,
rather than one individual supplier’s entire system. It reduces product training and installation
costs by standardizing communications across products.
Interoperable systems allow building managers to monitor and control IntelliPak™ equipment with
a Trane® Tracer® Summit, Tracer® SC or a third party building automation system. It enables
integration with many different building controls such as access/intrusion monitoring, lighting, fire
and smoke devices, energy management, and a wide variety of sensors (temperature, pressure,
light, humidity, occupancy, CO2, and air velocity). For more information on LonMark, visit
www.lonmark.org or Echelon, www.echelon.com.
Note: LonTalk® and LonWorks® are registered trademarks of Echelon Corporation.

Interoperability with BACnet®

The Trane® Tracer® SC BACnet® Control Interface (BCI) for IntelliPak™ offers a building
automation control system with outstanding interoperability benefits. BACnet®, which is an
industry standard, is an open, secure and reliable network communication protocol for controls,

12 RT-PRC036T-EN
 Features and Benefits

created by American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc.

(ASHRAE).
Interoperability allows application or project engineers to specify the best products of a given type,
rather than one individual supplier’s entire system. It reduces product training and installation
costs by standardizing communications across products.
Interoperable systems allow building managers to monitor and control IntelliPak™ equipment with
Tracer® SC controls or a third-party building automation system. It also enables integration with
many different building controls such as access/intrusion monitoring, lighting, fire and smoke
devices, energy management, and a wide variety of sensors (temperature, pressure, light,
humidity, occupancy, CO2, and air velocity).

Typical Points Available through BACnet®

• All rooftop diagnostics
• System setpoints
• System sensor inputs
• Supply fan mode and status
• VFD speed
• Unit heat/cool mode
• Exhaust fan status
• Exhaust damper position
• Economizer position, minimum position setpoint, economizing setpoint
• On/off status of each compressor
• Refrigerant evaporator and saturated condenser temperatures
• Hydronic heat valve position
• Electric heat stage status
• Ventilation override mode status

Control Points for IntelliPak™ Rooftops

• Cooling and heating setpoints
• Zone setpoint offsets for use with demand limiting
• VAV discharge air setpoints
• Supply air pressure setpoint
• Space pressure setpoint
• Zone and outdoor temperature values
• Cooling and heating enable/disable
• Economizer enable/disable
• Economizer setpoint
• Economizer minimum position
• Activation of ventilation override modes
• Diagnostics reset
• Unit priority shutdown
• Timed override activation

IntelliPak™ Rooftops Setup and Configuration Information

• Supply fan mode
• Configuration of supply air reset
• Ventilation override mode configuration
• Default system setpoint values
• Sensor calibration offsets

RT-PRC036T-EN 13
Features and Benefits

Optimum Building Comfort Control

The modular control design of the UCM allows for greater application flexibility. Customers can
order exactly the modules required for the job, rather than one large control package. Unit features
are distributed among multiple field replaceable printed circuit boards. The UCM can be set up to
operate under one of three control applications:
• Stand-alone
• Interface with Trane® Tracer® building management system
• Interface with a generic (non-Trane) building management system. All setup parameters are
preset from the factory, requiring less start-up time during installation.
The unit-mounted human interface and the remote human interface panels’ functions are identical,
except the service mode is not available on the remote human interface panel. This common
interface feature requires less time for building maintenance personnel to learn to interact with the
unit.
All of the rooftop control parameters are adjustable and can be set up through the remote human
interface panel such as, but not limited to, system on/off, demand limiting type, night setback
setpoints, and many other setpoints. No potentiometers are required for setpoint adjustment; all
adjustments are done through the remote human interface keypad. Also, up to 56 different rooftop
diagnostic points can be monitored through the human interfaces such as sensor failures, loss of
supply airflow, and compressor trip.
No special tools are required for servicing of the unit. All diagnostic displays are available in clear
English at the remote human interface and will be held in memory, so that the operator/servicer
can diagnose the root cause of failures.

Trane® Air-Fi™ Wireless Communications Interface (WCI)- Field Installed

The Trane® Air Fi™ Wireless Communications Interface (WCI) is the perfect alternative to Trane’s
BACnet® wired communication (for example, Trane® Air Fi™ Wireless Communications Interface
(WCI) between a Tracer® SC and a Tracer® UC400). Minimizing communication wire use between
terminal products, zone sensors, and system controllers has substantial benefits. Installation time
and associated risks are reduced. Projects are completed with fewer disruptions. Future re-
configurations, expansions, and upgrades are easier and more cost effective.

Building Pressure Control

Statitrac™ Direct Space Building Pressurization Control
Trane’s Statitrac™ control is a highly accurate and efficient method of maintaining building
pressure control with a large rooftop air conditioner.
The efficiency is achieved with a 100 percent modulating exhaust system that only operates as
needed. Most of the operating hours of the 100 percent modulating exhaust system are at part load,
saving more energy. Trane’s Statitrac™, with the 100 percent modulating exhaust system, provides
comfort and economy for buildings with large rooftop air conditioning systems.
Statitrac™ control is simple. The space pressure control turns the exhaust fans on and off as
required and modulates exhaust dampers to maintain space pressure within the space pressure
dead band. Using the unit-mounted human interface panel you can:
• Adjust space pressure setpoint.
• Adjust space pressure dead band.
• Measure and read building space pressure. The modulating exhaust system maintains the
desired building pressure, saving energy while keeping the building at the right pressure.
Proper building pressurization eliminates annoying door whistling, doors standing open, and
odors from other zones.

14 RT-PRC036T-EN
 Features and Benefits

The Statitrac™ direct space building control sequence will be maintained when a variable
frequency drive is used.

Statitrac™ Control with Plenum Return Fan is State of the Art

Other manufacturers utilize a fan tracking control scheme whereby the return fan speed tracks the
supply fan speed in a linear fashion. This scheme works well at minimum and maximum CFM
airflow. However, due to the dissimilar performance characteristics of the supply and return fan,
building pressure is difficult to control at points between minimum and maximum CFM airflow.
The Trane® return fan/building pressurization control system eliminates the effects of dissimilar
supply/return fan characteristics experienced in a linear tracking control system by modulating the
exhaust dampers based on space pressure, the return/economizer dampers based on ventilation
requirements, and the return fan speed based on return plenum static pressure. The supply fan,
return fan, exhaust damper, and return/economizer damper systems act independently from one
another to maintain comfort and building pressure.
The return fan operates whenever the supply fan is in operation. The unit exhaust dampers are
modulated in response to the space pressure signal to maintain space pressure within the space
pressure deadband. The unit economizer and return air dampers are modulated based on
ventilation control, minimum outside air economizer position, and economizer cooling request.
The return fan speed is modulated based on a return duct static pressure deadband control. Using
the unit-mounted human interface, the operator can:
• Adjust space pressure setpoint
• Adjust space pressure deadband
• Measure and read building space pressure
• Measure and read return duct static pressure.
Proper building pressurization eliminates annoying door whistling, doors standing open, and
odors from other zones.

Variable Frequency Drives (VFD)

Variable frequency drives are factory installed and tested to provide supply/exhaust/return fan
motor speed modulation. VFDs, as compared to discharge dampers, are quieter, more efficient, and
are eligible for utility rebates. The VFDs are available with or without a bypass option. Bypass
control will simply provide full nominal airflow in the event of drive failure.

Trane® 3-D® Scroll Compressors

The Trane® 3-D® Scroll provides important reliability and efficiency
benefits inherent to its design. The 3-D® Scroll allows the orbiting
scrolls to touch in all three dimensions forming a completely enclosed
compression chamber which leads to increased efficiency.
In addition, the orbiting scrolls only touch with enough force to create
a seal, thereby resulting in no wear between the scroll involutes. The
fixed and orbiting scrolls are made of high strength cast iron, which
results in less thermal distortion and minimal leakage. In addition,
better part isolation has resulted in reduced compressor sound levels
compared to previous designs.

RT-PRC036T-EN 15
Features and Benefits

Features listed below optimize the compressor design and

performance:
• Optimized scroll profile
• Heat shield protection to reduce heat transfer between discharge
and suction gas
• Improved sealing between condenser side and air handler side
Additional features are incorporated in the compressor design for
greater compressor reliability:
• Patented design motor cap for improved motor cooling
• Improved bearing alignment
• Improved resistance to dry start up
• Oil sight glass for evaluating proper oil levels

Low Torque Variation

The 3-D® Scroll compressor has a very smooth compression cycle. This means that the scroll
compressor imposes very little stress on the motor resulting in greater reliability. Low torque
variation reduces noise and vibration.

Suction Gas Cooled Motor

Compressor motor efficiency and reliability is further optimized with the latest scroll design. The
patented motor cap directs suction gas over the motor resulting in cooler motor temperatures for
longer life and better efficiency.

eFlex™ Variable Speed Scroll Compressor

Trane® eFlex™ variable speed scroll compressors are matched with a specially designed variable
frequency drive that allows a modulating ratio of up to 4:1. Our eFlex™ compressors are paired with
fixed speed compressors such that the units are capable of continuous capacity modulation from
15% to 100%. By design, unit capacity stages overlap to eliminate the frequent cycling between
stages typical of competing designs. This allows for unmatched control of leaving air temperatures
to meet space loads.
The eFlex™ compressors also include brushless permanent magnet motors designed to operate
at higher efficiency along with reducing the compressor motor speed and staging results in
significant part load energy savings. This makes units with eFlex™ compressors the most efficient
products in their class at part load.

16 RT-PRC036T-EN
 Features and Benefits

Microchannel Condenser Coils

Microchannel coils are an all aluminum coil that has
been successfully used in the automotive industry for Microchannel Flat Tube

many years, and is now being applied in the HVAC

industry. The coils have a fully-brazed construction,
which increases coil rigidity, making them more
rugged to withstand the rigors of jobsite handling. Header
(top removed)
Additionally, the light weight simplifies coil handling.
The all aluminum construction creates an exceptional
heat transfer capability, allowing the refrigerant Ribbon Fin
charge to be reduced to levels that exceed
LEED EA-Credit 4 requirements. Bottom line, less
refrigerant is being used, which creates a healthier
and greener environment.

Rapid Restart
Trane understands that every second counts. Trane equipment, controls, and control sequences
are designed to get the system back online and properly functioning should the facility experience
a power cycle event.
• Trane® HVAC system design is optimized for fast restart.
• IntelliPak™ rooftop system controls and equipment provide an integrated, pre-engineered
solution for fast restart.
• Proven operational procedures maximize up time outside of critical outages and get the system
up and running as quickly as possible.
With rapid restart and use of a backup generator, the IntelliPak™ rooftop system can provide full
cooling in 120 seconds or less after regaining electrical power. This option is fully integrated into
the IntelliPak™ controls logic via standard human interface. Rapid restart is a perfect fit in time-
sensitive applications where extended down time is not an option and heating/cooling is crucial.

Ultra Modulating Gas Heat

The Ultra-Modulating Gas Heat option uses an increased turn-down ratio to offer precise
temperature control in heating applications. The ultra modulating turn down ratios are 14 to 1 for
500 Mbh, 18 to 1 for 850 Mbh, and 21 to 1 for 1000 Mbh, and are available in both low and high heat.
For specific unit heating inputs, please reference the General Data section.

Energy Savings, Improved IAQ and Comfort

IntelliPak™ offers several ways to save energy while improving indoor air quality (IAQ) and zone
comfort. Standard factory-installed options for energy savings include hot gas reheat and
evaporative condensers.
Note: Not available on low heat for 20-40 ton units (235 & 350 Mbh heaters).

Single Zone VAV (SZVAV)

Single zone VAV (SZVAV) is designed for use in single zone applications such as gymnasiums,
auditoriums, manufacturing facilities, retail box stores, and any large open spaces where there is
a diversity in the load profile. It is an ideal replacement to older constant-volume (CV) systems, as
it reduces operating costs while improving occupant comfort.
SZVAV systems combine Trane application, control and system integration knowledge to exactly
match fan speed with cooling and heating loads, regardless of the operating condition. Trane

RT-PRC036T-EN 17
Features and Benefits

algorithms meet and/or exceed ASHRAE 90.1- 2010 SZVAV energy-saving recommendations and
those of CA Title 24. The result is an optimized balance between zone temperature control and
system energy savings. Depending on your specific application, energy savings can be as much
as 20%+.
Note: Building system modeling in energy simulation software such as TRACE is recommended
to evaluate performance improvements for your application.
SZVAV is fully integrated into the IntelliPak™ control system. It provides the simplest and fastest
commissioning in the industry through proven factory-installed, wired, and tested system
controllers. All control modules, logic boards and sensors are factory installed and tested to ensure
the highest quality and most reliable system available. This means no special programming of
algorithms, or hunting at the job site for field-installed sensors, boards, etc. Single zone VAV is a
quick and simple solution for many applications. Consult your local Trane provider for the latest
VAV system solution.

eDrive™ Direct-Drive Plenum Fans

In addition to higher reliability, direct-drive plenum fans

offer higher fan efficiency at AHRI rating points. Direct
drive plenum fans have a peak operating efficiency which
is typically 10-20% more efficiency than traditional housed
fans. Trane offers two fan widths to optimize fan efficiency
for the building system. For low static applications, where
forward-curved fans may be the best choice, use Trane’s
TOPSS™ computer software selection program to select
the most efficient fan option for your system design.
Direct-drive plenum fans are offered as a design special
with evaporative condenser units.

High Efficiency Unit

This option offers improved unit efficiency. All high-efficiency units meet CEE Tier 2 requirements
for unitary equipment. This allows opportunities for owners to take advantage of valuable utility
rebates for using energy-efficient equipment.

Trane® Air Quality (Traq™) Outside Air Measurement System

Trane® Air Quality (Traq™) outside air measurement system uses velocity pressure sensing rings
to measure airflow in the outside air opening from 40 cfm/ton to maximum airflow. Measurement
accuracy is at least ±15%, meeting requirements of LEED IE Q Credit 1.

18 RT-PRC036T-EN
Application Considerations
Exhaust/Return Fan Options
When is it necessary to provide building exhaust? Whenever an outdoor air economizer is used,
a building generally requires an exhaust system. The purpose of the exhaust system is to exhaust
the proper amount of air to prevent over or under-pressurization of the building. The goal is to
exhaust approximately 10 percent less air than the amount of outside air going into the building.
This maintains a slightly positive building pressure.
The reason for applying either a return, or exhaust fan is to control building pressure. The Trane®
100 percent modulating exhaust system with Statitrac™ is an excellent choice for controlling
building pressure in the majority of applications. For more demanding applications, Trane’s 100
percent modulating return fan system with Statitrac is an excellent choice for systems with high
return static pressure losses, or duct returns. Both systems employ direct digital control technology
to maintain building pressure. Either return or exhaust fan systems with Statitrac may be used on
any rooftop application that has an outdoor air economizer.
A building may have all or part of its exhaust system in the rooftop unit. Often, a building provides
exhaust external to the air conditioning equipment. This external exhaust must be considered
when selecting the rooftop exhaust system.
With an exhaust fan system, the supply fan motor and drives must be sized to overcome the total
system static pressure, including return losses, and pull return air back to the unit during non-
economizer operation. However, a supply fan can typically overcome return duct losses more
efficiently than a return air fan system. Essentially, one large fan by itself is normally more efficient
than two fans in series because of only one drive loss, not two as with return fan systems.
In a return fan system, the return fan is in series with the supply fan, and operates continuously
whenever the supply fan is operating to maintain return air volume. The supply fan motor and
drives are sized to deliver the design CFM based on internal and discharge static pressure losses
only. The return fan motor and drives are sized to pull the return CFM back to the unit based on
return duct static. Therefore, with a return fan system, the supply fan ordinarily requires less
horsepower than a system with an exhaust fan.

Exhaust/Return Systems
• Barometric relief
• 50 percent exhaust air fan option
• 100 percent modulating exhaust with Statitrac direct space sensing building pressurization
control (with or without exhaust variable frequency drives)
• 100 percent modulating exhaust without Statitrac
• 100 percent modulating plenum return airfoil fan with Statitrac direct space sensing building
pressurization control with variable frequency drive
• 100 percent modulating plenum return airfoil fan without Statitrac
• Drivers for applying either return or exhaust fan systems range from economy, to building
pressure control, to code requirements, to generally accepted engineering practices.

Application Recommendations
Barometric Relief Dampers
Barometric relief dampers consist of gravity dampers which open with increased building
pressure. As the building pressure increases, the pressure in the unit return section also increases,
opening the dampers and relieving air. Barometric relief may be used to provide relief for single
story buildings with no return ductwork and exhaust requirements less than 25 percent.

RT-PRC036T-EN 19
Application Considerations

50 Percent Exhaust System

The 50 percent exhaust system is a single FC exhaust fan with half the air moving capabilities of
the supply fan system. It is Trane’s experience that a non-modulating exhaust system selected for
40 to 50 percent of nominal supply CFM can be applied successfully. The 50 percent exhaust system
generally should not be selected for more than 40 to 50 percent of design supply airflow. Since it
is an on/off non-modulating system, it does not vary exhaust CFM with the amount of outside air
entering the building. Therefore, if selected for more than 40 to 50 percent of supply airflow, the
building may become under-pressurized when economizer operation is allowing lesser amounts
of outdoor air into the building. If, however, building pressure is not of a critical nature, the non-
modulating exhaust system may be sized for more than 50 percent of design.

100 Percent Modulating Exhaust with Statitrac™ Control, Constant Volume, and VAV
Units
For both CV and VAV rooftops, the 100 percent modulating exhaust discharge dampers or exhaust
fan VFD are modulated in response to building pressure. A differential pressure control system,
Statitrac, uses a differential pressure transducer to compare indoor building pressure to
atmospheric pressure. The FC exhaust fan is turned on when required to lower building static
pressure to setpoint. The Statitrac control system then modulates the discharge dampers or fan
VFD to control the building pressure to within the adjustable, specified deadband that is set at the
human interface panel. Economizer and return air dampers are modulated independent of the
exhaust dampers or exhaust fan VFD based on ventilation control and economizer cooling
requests.

Advantages:
• The exhaust fan runs only when needed to lower building static pressure.
• Statitrac compensates for pressure variations within the building from remote exhaust fans and
makeup air units.
• When discharge dampers are utilized to modulate the exhaust airflow, the exhaust fan may be
running unloaded whenever the economizer dampers are less than 100 percent open.
The Trane® 100 percent modulating exhaust system with Statitrac™ provides efficient control of
building pressure in most applications simply because 100 percent modulating exhaust discharge
dampers or exhaust fan VFD are controlled directly from building pressure, rather than from an
indirect indicator of building pressure, such as outdoor air damper position.

100 Percent Modulating Exhaust System without Statitrac™, Constant Volume Units
Only
This fan system has performance capabilities equal to the supply fan. The FC exhaust fans are
started by the economizer’s outdoor air damper position and the exhaust dampers track the
economizer outdoor air damper position. The amount of air exhausted by this fan is controlled by
modulating discharge dampers at the fan outlet. The discharge damper position is controlled by
a signal that varies with the position of the economizer dampers. When the exhaust fans start, the
modulating discharge dampers are fully closed, and exhaust airflow is 15 to 20 percent of total
exhaust capabilities.

Advantages:
• The exhaust fan runs only when the economizer reaches the desired exhaust enable point.
• Exhaust dampers are modulated based on the economizer position.
• When discharge dampers are utilized to modulate the exhaust airflow, the exhaust fan may be
running unloaded whenever the economizer dampers are less than 100 percent open.
The Trane® 100 percent modulating exhaust system provides excellent linear control of building
exhaust in most applications where maintaining building pressure is not important.

20 RT-PRC036T-EN
 Application Considerations

Figure 1. Plan view of modulating 100-percent exhaust system

Outside
Air

Supply
Supply Air
Exhaust Fans Opening
Fans

Discharge
Dampers
Exhaust
Air

100 Percent Modulating Return Fan Systems with Statitrac™ Control, Constant Volume
and VAV units
For both CV and VAV applications, the IntelliPak™ rooftop unit offers 100 percent modulating return
fan systems. A differential pressure control system, Statitrac, uses a differential pressure
transducer to compare indoor building pressure to atmospheric pressure. The return fan exhaust
dampers are modulated, based on space pressure, to control the building pressure to within the
adjustable, specified deadband that is set at the human interface panel. A VFD modulates the return
fan speed based on return duct static pressure. Economizer and return air dampers are modulated
independent of the exhaust dampers based on ventilation control and economizer cooling
requests.

Advantages:
• The return fan operates independently of the supply fan to provide proper balance throughout
the airflow envelope.
• Statitrac compensates for pressure variations within the building from remote exhaust fans and
makeup air units.
• The return fan acts as both exhaust and return fan based on operation requirements.
The Trane® 100 percent modulating return system with Statitrac provides efficient control of
building pressure in applications with higher return duct static pressure and applications requiring
duct returns. Exhaust discharge dampers are controlled directly from building pressure, return fan
VFD is controlled from return static pressure, and return/economizer dampers are controlled based
on ventilation control and economizer cooling requests.

100 Percent Modulating Return Fan without Statitrac Control, Constant Volume Units
Only
The return fan runs continuously while the supply fan is energized. Economizer, return air, and
exhaust dampers are modulated based on ventilation control, and economizer cooling requests.

RT-PRC036T-EN 21
Application Considerations

Advantages:
• The return fan enhances total system static capability.
• The return fan discharges in two directions, thereby balancing exhaust and unit return air
volumes.

Horizontal Discharge
The typical rooftop installation has both the supply and return air paths routed through the roof
curb and building roof. However, many rooftop installations require horizontal supply and/or return
from the rooftop because of a building’s unique design or for acoustic considerations.
Trane has two ways to accomplish horizontal supply and/or return. The first method is through
special field supplied curbs that use the unit’s standard discharge and return openings. The supply
and return air is routed through the curb to horizontal openings on the sides of the curb. The second
method available for horizontal supply and return applies to 20-75tons SXHL, SFHL, SLHL, SSHL,
and 90-130 tons SXHK, SLHK, and SSHK design units ONLY. With this method the standard
discharge and return openings are blocked in the factory as a design special. Access panels are
removed as indicated in Figure 2, p. 23. These openings are used for the discharge and return. No
special curb is needed.

SXHL, SFHL, SLHL, SSHL Units

Figure 2 is a simplified sketch of the rooftop showing which panels can be used for horizontal
supply and/or return. To supply air horizontally, the panels that normally house the heat accessory
controls (Panel A) and the gas heat barometric dampers (Panel B) can be removed and either of the
openings used as a unit discharge (see note 1). To return air horizontally, the exhaust fan access
door (Panel C) can be removed and used as a return opening. Table 1, Table 2, and Table 3, p. 24
show dimensions for those panels (see note 4).
Note: Horizontal discharge cannot be applied to SFHL 20-55T units with DDP fan.

Horizontal Discharge on SXHL, SFHL, SLHL, and SSHL Rooftops (20-75 Ton)
The SXHL (extended casing cooling only), SFHL (gas heat), SSHL (steam heat), and SLHL (hot water
heat) rooftops can be factory modified as a design special to supply and return air horizontally
without the use of a horizontal supply/return curb.
To supply air horizontally on SXHL only, the panels that normally house the heat accessory controls
(Panel A) and the gas heat barometric dampers (Panel B) can be removed and either of the openings
used as a unit discharge. To return air horizontally, the exhaust fan access door (Panel C) can be
removed and used as a return opening (see note 4).

22 RT-PRC036T-EN
 Application Considerations

Figure 2. Horizontal discharge panel dimensions – SXHL, SFHL, SLHL, SSHL units (20-75 Ton)

Plan View Panel B

Z

Supply
Filters
W Return
X

Note: Cannot remove

Panel C panel A for horizontal
Panel A discharge on S_HL units.
Side View

H H
Y

W
Z

Notes:
1 For horizontal discharge on SFHL, SLHL and SSHL units, only the Panel B can be removed. Panel A cannot be used due to
the location of the heating piping and components.
2 Add an extra 0.20-inches pressure drop to the supply external static to account for the extra turn the air is making.
3 The openings all have a 1.25-inch lip around the perimeter to facilitate ductwork attachment.
4 If exhaust/return fans are being used, provisions should be made for access to the exhaust components, since the access
door is now being used as a return.
5 Use the dimensions provided and the supply cfm to calculate the velocity (ft/min) through the openings to be sure they
are acceptable coils.

Table 1. SXHL, SFHL, SSHL, SLHL – Panel A and B dimensions

Total Area (H X W)
Model H (in.) W (in.) (in.2) (ft2)
S*HL *20 40.7 25.5 1038 7.2
S*HL *25 40.7 25.5 1038 7.2
S*HL *30 52.7 25.5 1344 9.3
S*HL *40 64.5 34.5 2225 15.5
S*HL *50 76.7 34.5 2646 18.4
S*HL *55 76.7 34.5 2646 18.4
S*HL *60 64.6 34.5 2229 15.5
S*HL *70 64.6 34.5 2229 15.5
S*HL *75 64.6 34.5 2229 15.5
* = Universal letter/number. See model number for specifics.

RT-PRC036T-EN 23
Application Considerations

Table 2. SXHL, SFHL, SSHL, SLHL – Panel C dimensions

Total Area (H X W)
Model H (in.) W (in.) (in.2) (ft2)
S*HL *20 40.7 34.5 1404 9.8
S*HL *25 40.7 34.5 1404 9.8
S*HL *30 52.7 34.5 1818 12.6
S*HL *40 64.5 34.5 2225 15.5
S*HL *50 76.7 34.5 2646 18.4
S*HL *55 76.7 34.5 2646 18.4
S*HL *60 64.6 34.5 2229 15.5
S*HL *70 64.6 34.5 2229 15.5
S*HL *75 64.6 34.5 2229 15.5
* = Universal letter/number. See model number for specifics.

Table 3. SXHL, SFHL, SSHL, SLHL – X, Y, and Z dimensions

Model X (in.) Y (in.) Z (in.)
S*HL *20 43.5 44.0 201.5
S*HL *25 43.5 44.0 201.5
S*HL *30 43.5 56.0 201.5
S*HL *40 44.5 67.8 237.0
S*HL *50 44.5 80.0 237.0
S*HL *55 44.5 80.0 237.0
S*HL *60 44.5 68.0 237.5
S*HL *70 44.5 68.0 237.5
S*HL *75 44.5 68.0 237.5
* = Universal letter/number. See model number for specifics.

Horizontal Discharge on 90 to 130 Ton Units

Figure 3, p. 25, is a simplified sketch showing which panels can be used for horizontal supply and/
or return. On 90 to 130 ton units, only one side of the extended casing may be used for horizontal
supply because of the location of the unit control panel. There are, however, two panels on SXHK
models (Panels A) on the side opposite the control box that can be removed along with the vertical
support, which separates the two. Removal of the vertical support is optional, but will ensure
maximum airflow. On SLHK and SSHK models, only one of the Panel As can be used for horizontal
supply because of the location of the heating coil. Horizontal return is accomplished in much the
same way as on S*HLs by removing the exhaust fan access door (Panel B). See Table 4 and Table 5
for S*HK panel dimensions (see note 4).
When using an IntelliPak™ rooftop for horizontal supply and return, an additional pressure drop
must be added to the supply external static to account for the 90 degree turn the air is making. This
additional pressure drop depends on airflow and rooftop size, but a range of 0.10 inches to 0.30
inches can be expected. The openings on the rooftop all have a one inch lip around the perimeter
to facilitate ductwork attachment. If exhaust/return fans are being used on an IntelliPak™ rooftop
unit with horizontal return, provisions should be made for access to the exhaust components, since
the access door opening is now being used as a return. Perhaps the return ductwork attachment
to the rooftop can include a section of removable duct. Use the dimensions provided and the supply
and exhaust cfm to calculate the velocity (ft/min) through the openings.

24 RT-PRC036T-EN
 Application Considerations

Figure 3. Horizontal discharge panel dimensions – 90 to 130 tons SXHK, SLHK, SSHK units
Note:
Cannot remove this panel for horizontal
discharge on SLHK/SSHK units.

Panel A (see note 1)

Plan View Z

Supply
Filters
W Return
X

Panel B Control Box

Side View

H H
Y

Z W

Table 4. SXHK, SLHK, SSHK - Panel A and B dimensions

Total Area (H X W)
Panel H (in.) W (in.) (in.2) (ft2)
A 72.7 27.5 1999 13.9
B 72.7 32.0 2508 17.4

Table 5. SXHK, SLHK, SSHK - X, Y, and Z dimensions

Model X (in.) Y (in.) Z (in.)
S*HK 90-130 69.0 77.8 244.7
* = X, L, or S

Notes:
1 SXHK units have two Panel As that can be removed. Once unit is installed, the panel(s) and the 6½-inch vertical support
channel in between can be removed.
2 Add an extra 0.20-inches pressure drop to the supply external static to account for the extra turn the air is making.
3 The openings all have a 1.25-inch lip around the perimeter to facilitate ductwork attachment.
4 If exhaust/return fans are being used, provisions should be made for access to the exhaust components, since the access
door is now being used as a return.
5 Use the dimensions provided and the supply Cfm to calculate the velocity (ft/min) through the openings to be sure they
are acceptable.

Horizontal Discharge SXHK, SLHK, SSHK Rooftops (90 to 130 tons)

The SXHK, SLHK, SSHK rooftops can be factory modified as a design special to supply and return
air horizontally without the use of a horizontal supply/return curb.
To supply air horizontally, use panel A only. The panel on the opposite side cannot be used due to
the location of the unit control panel. SXHK rooftop air conditioners do not have a panel
configuration like the 20-89 ton rooftops. To achieve maximum airflow, vertical support can be
removed after the unit has been placed on the roof curb. It is secured by four screws.
(See note 1) For horizontal discharge on SLHK and SSHK units, only the panel A next to the
condenser fan section can be removed. The other panel A next to the supply fan cannot be used
due to the location of the heating coils.
To return air horizontally, the exhaust fan access door (panel B) can be removed and used as a
return opening (see note 4).

RT-PRC036T-EN 25
Application Considerations

Capacity/Efficiency Options
High Capacity
Rooftops are popular because of their “packaged” nature. Everything needed is contained in one
box; mix-matching is neither necessary nor available. With this convenience comes some
disadvantages; one is the rooftop’s cooling capacity may not exactly match the building load. It is
conceivable that a 50 ton rooftop would need to be used on an application that is 41 tons, simply
because the 40 ton rooftop does not meet capacity.
In order to avoid such occurrences, and to more closely match the rooftop’s capacity to the building
load, a high capacity option is available on all IntelliPak™ rooftops. On 40 to 75 ton units, this high
capacity option has larger compressors that provide higher refrigerant mass flow rates, resulting
in a higher capacity. The 90 ton unit has the option of a high capacity evaporator with an added high
efficiency condenser coil. The 105 ton is only available with a high capacity evaporator coil.
Capacity tables for both standard and high capacity units are available in the cooling data section
of this catalog. See Table 55, p. 107 for the pressure drops associated with the high capacity coil
option on the 90 and 105 ton. This pressure drop should be added to the total static pressure used
to size the supply fan motor.

High Efficiency Units

Trane offers a high-efficiency option for 20 to 75 ton units. This option is especially helpful in
meeting high efficiency requirements legislated by some states as well as qualifying for local utility
rebates. High efficiency units meet CEE Tier 2 requirements.

High Efficiency Air-Cooled Condenser Coil

The 90 ton unit can also be optionally equipped with an increased number of condenser coil rows
to enhance the rooftop capacity and efficiency. This option is especially helpful to meet the high
efficiency requirements legislated by some states and to qualify for local utility rebates. Capacity
tables for both standard and high efficiency condenser coils are available in the cooling data
section of this catalog.

Supply Fan Options

Trane offers two types of supply fans as options for 20 to 75 ton units. These units may be ordered
with a traditional belt-driven, forward-curved (FC) fan or with a direct-drive plenum (DDP) fan. The
DDP fans offer multiple width options to optimize fan efficiency for the system design point.
Depending on design points, a DDP fan may offer an efficiency gain for the unit. DDP fans offer
increased reliability and require less maintenance than FC fans because there are no belts to
tension or replace, no bearings to grease, and no sheaves to align. See Trane’s engineering bulletin
on DDP fans (RT-PRB033-EN) for more application details.

Miscellaneous Applications
Low Ambient Operation - Human Interface Recommendations
Who wants to be on a roof at subzero temperatures? We can understand a service technician’s
reluctance to do this; that’s why we offer a remote mounted human interface panel. The service
technician can troubleshoot and diagnose in the comfort of a mechanical room.

IntelliPak™ Replacement Unit (IRU)

This option must be included when replacing an existing R-22 IntelliPak™ unit with the current R-
410A design and is also applied when using a full perimeter curb with isolation. The IntelliPak™
rooftop replacement engineering bulletin RT-PRB027-EN provides more detail on this.

Corrosive Atmospheres
Trane’s IntelliPak™ rooftops are designed and built to industrial standards and will perform to those
standards for an extended period depending on the hours of use, the quality of maintenance
performed, and the regularity of that maintenance. One factor that can have an adverse effect on

26 RT-PRC036T-EN
 Application Considerations

unit life is its operation in a corrosive environment. Since the microchannel condenser coil is an
all-aluminum design, it provides a high level of corrosion protection on its own. Uncoated, it
withstands a salt spray test in accordance with ASTM B117 for 1,000 hours. When rooftops are
operated in highly corrosive environments, Trane recommends the corrosion protected condenser
coil option.
This corrosion protection option meets the most stringent testing in the industry, including ASTM
B117 Salt Spray test for 6,000 hours and ASTM G85 A2 Cyclic Acidified Salt Fog test for 2,400 hours.
The acid fog test is the most stringent available today. This coating is added after coil construction
covering all tubes, headers, fins and edges. The design provides superior protection from any
corrosive agent. For evaporator coils, copper fins can be utilized as a design special.
Note: Field coating is not allowed on microchannel coils.

Ventilation Override Sequences

One of the benefits of using an exhaust system is that the rooftop can be used as part of a ventilation
override system. Several types of sequences can be easily done when power exhaust is a part of
the rooftop system. What would initiate the ventilation override control sequence? Typically, a
manual switch is used and located near the fire protection control panel. This enables the fire
department access to the control for use during or after a fire. It is also possible to initiate the
sequence from a field-installed automatic smoke detector. In either case, a contact closure begins
the ventilation override control sequence.
Important: The ventilation override system should not be used to signal the presence of smoke
caused by a fire.
Trane can provide five different ventilation override sequences on both CV and VAV IntelliPak™
rooftops. For your convenience the sequences can be factory preset or fully field editable from the
human interface panel or Tracer®. Any or all five sequences may be “locked” in by the user at the
human interface panel. The user can customize up to five different override sequences for purposes
such as smoke control. The following parameters within the unit can be defined for each of the five
sequences:
• Supply fan - on/off
• Variable frequency drives - on (60 Hz)/off (0 Hz)/controlling
• Exhaust/return fan - on/off
• Exhaust dampers - open/closed
• Economizer dampers - open/closed
• Heat - off/controlling (output for) VAV boxes - open/controlling
Compressors and condenser fans are shut down for any Ventilation Override sequence. Factory
preset sequences include unit Off, Exhaust, Purge, Purge with duct pressure control, and
Pressurization. Any of the user-defined Ventilation Override sequences can be initiated by closing
a field supplied switch or contacts connected to an input on the Ventilation Override Module. If
more than one ventilation override sequence is being requested, the sequence with the highest
priority is initiated. Refer to the Sequence of Operation provided in the Control section of this
catalog for more details on each override sequence.

Natural Gas Heating Considerations

The IntelliPak™ standard gas heat exchangers are not recommended for applications with mixed
air conditions entering the heat exchanger below 50°F. Mixed air temperatures below 50°F can
cause condensation to form on the heat exchanger, leading to premature failure. For increased
reliability, the recommendation in these applications is full or ultra modulating gas heat. For airflow
limitations and temperature rise across the heat exchanger information, see Table 46, p. 83 and
Table 47, p. 83.

Acoustical Considerations
The ideal time to make provisions to reduce sound transmission to the space is during the project
design phase. Proper placement of rooftop equipment is critical to reducing transmitted sound

RT-PRC036T-EN 27
Application Considerations

levels to the building. The most economical means of avoiding an acoustical problem is to place
any rooftop equipment away from acoustically critical area. If possible, rooftop equipment should
not be located directly above areas such as: offices, conference rooms, executive office areas and
classrooms. Ideal locations are above corridors, utility rooms, toilet facilities, or other areas where
higher sound levels are acceptable.
Several basic guidelines for unit placement should be followed to minimize sound transmission
through the building structure:
• Never cantilever the condensing section of the unit. A structural cross member must support
this end of the unit.
• Locate the unit’s center of gravity close to or over a column or main support beam to minimize
roof deflection and vibratory noise.
• If the roof structure is very light, roof joists should be replaced by a structural shape in the
critical areas described above.
• If several units are to be placed on one span, they should be staggered to reduce deflection over
that span.
It is impossible to totally quantify the effect of building structure on sound transmission, since this
depends on the response of the roof and building members to the sound and vibration of the unit
components. However, the guidelines listed above are experience proven guidelines which will
help reduce sound transmission.
There are several other sources of unit sound, i.e., supply fan, compressors, exhaust fans,
condenser fans and aerodynamic noise generated at the duct fittings. Refer to the current ASHRAE
Applications Handbook for guidelines on minimizing the generation of aerodynamic noise
associated with duct fittings.
For information on various duct installation considerations specifically addressing indoor sound
level concerns, see the latest Trane® engineering bulletin on sound. This bulletin includes sound
power data on Trane’s IntelliPak™ rooftops. Contact your local Trane® representative for this
bulletin.
The VariTrane™ duct design program can be used to analyze the truck duct, run-out duct, VAV
control unit and terminal unit noise attenuation. This program quantifies the airborne sound
generation that can be expected in each terminal so that the designer can identify potential sound
problems and make design alterations before equipment installation.
The Trane® acoustics program (TAP) allows modeling of rooftop installation parameters. The
output of this program shows the resulting indoor NC level for the modeled installation. This
program is available from Trane’s Customer Direct Service Network (CDS), ask your local Trane®
representative for additional information on this program.

High Entering Return Temperature Applications

Some applications may have high entering return temperatures, such as a data center. It is
recommended that the dry bulb temperatures in any application do not exceed 95°F for extended
periods of time.
If this is a requirement, please work with the Applications or Product Support group in developing
a specific assessment. Other factors, such as wet bulb and ambient temperatures, will also affect
the system’s reaction.

28 RT-PRC036T-EN
 Application Considerations

Clearance Requirements Figure 4. Unit placement

The recommended clearances identified with unit
Exhaust Outdoor
dimensions should be maintained to assure adequate Air Air Intake1
serviceability, maximum capacity and peak operating
efficiency.
A reduction in unit clearance could result in condenser
coil starvation or warm condenser air recirculation.
Clearances must be considered for the following:
• Do the clearances available allow for major service
work such as changing compressors or coils?
• Do the clearances available allow for proper
outside air intake, exhaust air removal and
condenser airflow? Outdoor
• If screening around the unit is being used, is there Air Intake2

a possibility of air recirculation from the exhaust to

the outside air intake or from condenser exhaust to Exhaust Outdoor
condenser intake? Air Air Intake1

• Do clearances meet all applicable codes?

Actual clearances which appear inadequate should be
reviewed with a local Trane® sales engineer. When
two or more units are to be placed side by side, the
distance between the units should be increased to 150
percent of the recommended single unit clearance.
The units should also be staggered as shown in
Figure 4 for two reasons:
• To reduce span deflection if more than one unit is Notes:
1. 20-40 ton air-cooled models have only one
placed on a single span. Reducing deflection outdoor air intake. 50-75 ton air-cooled
discourages sound transmission. models have two outdoor air intakes.
2. 90-130 ton models have two outdoor air
• To assure proper diffusion of exhaust air before intakes on the backside of the unit and one
small air intake at the end of the unit.
contact with the outside air intake of adjacent unit.

RT-PRC036T-EN 29
Selection Procedure
This section outlines a step-by-step procedure that can be used to select a Trane® air-cooled single-
zone air conditioner. Air-cooled models should be selected based on dry bulb (DB) conditions. For
specific model selection, use the TOPSS™ computer software selection program or contact the
local Trane® Sales Office.
The sample selection is based on the following conditions:
Sample selection conditions:
Summer outdoor design conditions 95 DB/76 WB ambient temperature
Summer room design conditions 78 DB/64 WB
Total cooling load 430 MBh (35.8 tons)
Sensible cooling load 345 MBh (28.8 tons)
Outdoor air ventilation load 66.9 MBh
Return air temperature 80 DB/65 WB
Winter design:
Winter outdoor design conditions 0°F
Return air temperature 70°F
Total heating load 475 MBh
Winter outdoor air ventilation load 133 MBh
Air delivery data:
Supply fan CFM 17,500 CFM
External static pressure 1.2 in wg
Minimum outdoor air ventilation 1,750 CFM
Exhaust/Return fan CFM 12,000 CFM
Return air duct negative static pressure 0.65 in wg
Electrical characteristics:
Voltage/cycle/phase 460/60/3
Unit Accessories • Gas fired heat exchanger - high heat module
• Throwaway filters
• Economizer
• Modulating 100 percent exhaust/return fan

30 RT-PRC036T-EN
 Selection Procedure

Cooling Capacity Selection

1. Determine nominal unit size selection
A summation of the peak cooling load and the outside air ventilation load shows:
430 MBh + 66.9 MBh = 496.9 MBh required unit capacity. Figure 54, p. 106, a 50 ton unit capacity
with standard capacity evaporator coil at 80 DB/65WB, 95°F outdoor air temperature and 17,500
total supply CFM is 581 MBh total and 430 MBh sensible.Thus, a nominal 50 ton unit with
standard capacity is selected.
2. Determine evaporator coil entering conditions
Mixed air dry bulb temperature determination:
Using the minimum percent of OA (1,750 CFM ÷ 17,500 CFM = 10 percent), determine the
mixture dry bulb to the evaporator.
RADB + % OA (OADB - RADB) = 80 + (0.10) (95 - 80) = 80 + 1.5 = 81.5°F
Approximate wet bulb mixture temperature:
AWB + % OA (OAWB - RAWB) = 65 + (0.10) (76 - 65) = 65 + 1.1 = 66.1°F
3. Determine supply fan motor heat gain
Having selected a nominal 50 ton unit, the supply fan bhp can be calculated.The supply fan
motor heat gain must be considered in final determination of unit capacity.
Determine unit total static pressure (Table 45, p. 82) at design supply CFM:
Supply Air Fan
Supply duct static pressure 1.20 inches
Evaporator coil 0.60 inches
Return duct negative static pressure 0.65 inches
Heat exchanger 0.31 inches
Throwaway filter 0.10 inches
Economizer w/exhaust fan 0.12 inches
Trane® roof curb 0.13 inches
Unit total static pressure 3.11 inches

Using total of 17,500 CFM and total static pressure of 3.11 inches, estimate the bhp and rpm
using the fan curve in Figure 13, p. 93, for an FC fan.The bhp is 16 at 989 rpm. Similarly, a DDP
fan can be selected using Figure 17, p. 97, or Figure 18, p. 98.
From Figure 5, p. 33, supply fan motor heat gain = 44 MBh.
4. Determine total required cooling capacity
Required capacity = Total peak load + OA load + supply air fan motor heat.
Required capacity = 430 + 66.9 + 44 = 540.9 MBh (45.1 tons)
5. Determine unit capacity
From Table 24, p. 61, unit capacity at 81.5 DB/66.1WB entering the evaporator, 17,500 supply air
CFM, 95°F outdoor ambient, is 575 MBh (47.9 tons) with 475 MBh sensible.
6. Determine leaving air temperature
Unit sensible heat capacity corrected for supply air fan motor heat = 475 MBh - 44 MBh =
431 MBh. Supply air dry bulb temperature difference =
Sensible Btu =
1.085 x Supply CFM

431 MBh ÷ (1.085 x 17,500 CFM) = 22.7°F

RT-PRC036T-EN 31
Selection Procedure

Supply air dry bulb = 81.5 DB - 22.7 = 58.8°F

Unit enthalpy difference =
Total Btu =
4.5 x Supply CFM

575 MBh ÷ (4.5 x 17,500 CFM) = 7.3 Btu/lb

Leaving enthalpy = h(ent WB) - h(diff). From Table 11, p. 48 h(ent WB) = 30.9 Btu/lb
Leaving enthalpy = 30.9 Btu/lb - 7.3 Btu/lb = 23.6 Btu/lb
Supply air wet bulb = 55.6
Leaving air temperature = 59.2 DB/55.6WB

Heating Capacity Selection

1. Determine air temperature entering heating module
Mixed air temperature = RADB + % OA (OADB - RADB) = 70 + (0.10) (0 - 70) = 63°F
Supply air fan motor heat temperature rise = 51,900 Btu ÷ (1.085 x 17,500 CFM) = 2.73°F
Air temperature entering heating module = 63.0 + 2.73 = 65.7°F
2. Determine total winter heating load
Total winter heating load = peak heating load + ventilation load - supply fan motor heat = 475
+ 133 - 51.9 = 556.1 MBh
a. Electric heating system
Unit operating on 460/60/3 power supply.
From Table 52, p. 84, kW may be selected for a nominal 50 ton unit operating 460-volt power.
The 170 kW heat module (580.1 MBh) will satisfy the winter heating load of 563 MBh.
Table 50, p. 84 shows an air temperature rise of 30.6°F for 17,500 CFM through the 170 kW heat
module.
Unit supply temperature at design heating conditions = mixed air temperature + air
temperature rise = 65.7°F + 30.6°F = 96.3°F.
b. Gas heating system (natural gas)
From Table 46, p. 83 select the high heat module (680 MBh output) to satisfy winter heating load
of 563 MBh at unit CFM.
Table 46, p. 83 also shows an air temperature rise of 35.0°F for 17,500 CFM through the heating
module.
Unit supply temperature at design heating conditions = mixed air temperature + air
temperature rise = 65.7°F + 35.0°F = 100.7°F.

32 RT-PRC036T-EN
 Selection Procedure

Figure 5. Fan motor

c. Hot water heating

Assume a hot water supply temperature of 190°F. Subtract the mixed air temperature from the
hot water temperature to determine the ITD (initial temperature difference).
ITD = 190°F - 65.7°F = 126°F. Divide the winter heating load by ITD = 563 MBh ÷ 126°F = 4.50 Q/ITD.
From Table 53, p. 85, select the low heat module. By interpolation, a Q/ITD of 4.50 can be
obtained at a gpm at 25.7.
Water pressure drop at 25.7 gpm is 0.57 ft. of water. Heat module temperature rise is determined
by:
Total Btu = ΔT
1.085 x Supply CFM

563,000 = 29.7°F
(1.085 x 17,500)

Unit supply air temperature = mixed air temperature + air temperature rise = 65.7 + 29.7 = 95°F.
d. Steam heating system
Assume a 15 psig steam supply.
From Table 49, p. 84, the saturated temperature steam is 250°F. Subtract mixed air temperature
from the steam temperature to determine ITD. ITD = 250°F - 65.7°F = 186°F.
Divide winter heating load by ITD = 563 MBh ÷ 186°F = 3.03 Q/ITD.
From Table 48, p. 83, select the high heat module. The high heat module at 17,500 CFM has a
Q/ITD = 5.11.
Heat module capacity, Q = ITD x Q/ITD = 186 F x 5.11 Q/ITD = 950 MBh

RT-PRC036T-EN 33
Selection Procedure

Heat module air temperature rise

= Total Btu
1.085 x Supply CFM

945 Btu ÷ (1.085 x 17,500 CFM) = 50°F.

Unit supply temperature at design conditions = mixed air temperature + air temperature rise
= 65.1°F + 50°F = 116°F.

Air Delivery Procedure

Supply fan performance curves include internal resistance of rooftop. For total static pressure
determination, system external static must be added to appropriate component static pressure
drop (evaporator coil, filters, optional economizer, optional exhaust fan, optional heating system,
optional cooling only extended casing, optional roof curb).

Supply Fan Motor Sizing

The supply fan motor selected in the cooling capacity determination was 16 bhp and 989 rpm. Thus,
a 20 hp supply fan motor is selected. For an FC fan selection, enter Table 64, p. 112 to select the
proper drive. For a 50 ton rooftop with 20 hp motor, a drive number A - 1000 rpm is selected.

Exhaust Fan Motor Sizing

The exhaust fan is selected based on total return system negative static pressure and exhaust fan
CFM. Return system negative static include return duct static and roof curb static pressure drop.
Return duct static pressure = 0.65 inches
Trane® roof curb (Table 54, p. 106) = 0.12 inches
Total return system negative static pressure = 0.77 inches
Exhaust fan CFM = 12,000 CFM
From Table 72, p. 138, the required bhp is 3.45 hp at 574 rpm. Thus, the exhaust fan motor selected
is 5 hp.
To select a drive, enter Table 62, p. 111 for a 5 hp motor for a 50 ton unit. Drive selection number
6 - 600 rpm.
Where altitudes are significantly above sea level, use Table 12, p. 50, and Table 13, p. 50 and
Figure 6, p. 50 for applicable correction factors.

Return Fan Motor Sizing

The return fan is selected based on the return fan CFM and the total return system negative static
pressure. The return system negative static includes the return duct static, the exhaust damper
pressure drop, and any roof curb static pressure drop.
Since return fans handle all of the return static, supply fan motor sizing does not need to include
this value. This feature is helpful if the supply motor HP is over the maximum limit and in some
cases, can allow supply motor downsizing.
However, since the return fan runs continuously to handle all of the return static, the sensible heat
generated by the motor must be included in the entering evaporator coil mixed temperature
equation.
Return Duct Static Pressure = 0.65
Roof curb Static Pressure (Table 54, p. 106) = 0.12
Exhaust Damper Pressure Drop = 0.41
Total Return System Static Pressure = 1.18
Return Fan CFM = 12000

34 RT-PRC036T-EN
 Selection Procedure

From Table 67, p. 114, the required bhp is 4.55. Thus the return fan is selected at 5HP. To select a
drive, look at table Table 70, p. 117 for a 5HP return motor on a 50 HP unit. Drive selection number
C - 1200.
Using Figure 5, p. 33 for fan motor heat, motor heat for 4.55 BHP = 10.4 MBh
10.4 MBh / (1.085 x 12000 return fan CFM) = 0.80°F
0.80°F is added to the return air temperature

Hot Gas Reheat Dehumidification Selection

The hot gas reheat option allows for increased outdoor air ventilation. It reduces humidity levels
while increasing comfort level in the air space.
Note: Please note that hot gas reheat operation will not be allowed when there is a call for heat
or a more than a 50% call for cooling.
Use the TOPSS™ selection program or contact a local Trane® sales office to calculate leaving unit
air temperature, latent capacity, reheat sensible capacity, leaving unit dew point, and moisture
removal when the unit is in hot gas reheat operation.
The hot gas reheat TOPSS™ selection requires the following customer input values: supply fan
airflow, ambient air temperatures, entering air temperatures, and a desired reheat set point
temperature. If the conditions provided are not within the reheat operating envelope an error will
be generated in the TOPSS™ program.
If the reheat set point is not obtainable at the provided conditions the customer will be required to
make adjustments to the conditions or change the reheat set point value.

Unit Electrical Requirements

Selection procedures for electrical requirements for wire sizing amps, maximum fuse sizing, and
dual element fuses are given in the electrical service section of this catalog.

Altitude Corrections
The rooftop performance tables and curves of this catalog are based on standard air (.075 lbs/ft).
If the rooftop airflow requirements are at other than standard conditions (sea level), an air density
correction is needed to project accurate unit performance.
Figure 6, p. 50 shows the air density ratio at various temperatures and elevations. Trane® rooftops
are designed to operate between 40 and 90 degrees Fahrenheit leaving air temperature.
The procedure to use when selecting a supply or exhaust fan on a rooftop for elevations and
temperatures other than standard is as follows:
1. First, determine the air density ratio using Figure 6.
2. Divide the static pressure at the nonstandard condition by the air density ratio to obtain the
corrected static pressure.
3. Use the actual CFM and the corrected static pressure to determine the fan rpm and bhp from
the rooftop performance tables or curves.
4. The fan rpm is correct as selected.
5. Bhp must be multiplied by the air density ratio to obtain the actual operating bhp.
In order to better illustrate this procedure, the following example is used:
Consider a 60 ton rooftop unit that is to deliver 18,000 actual CFM at 3-inches total static pressure
(tsp), 55°F leaving air temperature, at an elevation of 5,000 ft.
1. From Figure 6, the air density ratio is 0.86.
2. Tsp = 3.0-inches / 0.86 = 3.49 inches tsp.
3. From the performance tables: a 60 ton rooftop will deliver 18,000 CFM at 3.49-inches tsp at 992
rpm and 26.1 bhp.

RT-PRC036T-EN 35
Selection Procedure

4. The rpm is correct as selected - 906 rpm.

5. Bhp = 26.1 x 0.86 = 22.4 bhp actual.
Compressor MBh, SHR, and kW should be calculated at standard and then converted to actual
using the correction factors in Table 12, p. 50. Apply these factors to the capacities selected at
standard CFM so as to correct for the reduced mass flow rate across the condenser.
Heat selections other than gas heat will not be affected by altitude. Nominal gas capacity (output)
should be multiplied by the factors given in Table 13, p. 50 before calculating the heating supply
air temperature.

36 RT-PRC036T-EN
Model Number Descriptions
S A H L *50 4 0 A 6 8 A 6 B D 8 0 0 1 0 0 W 0 0 G 0 B 0 0 0 R 0 0 0 8 0 0
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38

Digit 1 — Unit Type Digit 9 — Heating Capacity Digit 11 — Exhaust/Return

S = Self-Contained (Packaged Rooftop) Note: When the second digit calls for “F” Option
(Gas Heat), the following values 0 = None
Digit 2 — Unit Function apply: (please note M and Tare 1 = Barometric
available ONLY on 50 ton models 3 = 100% Exhaust 3 HP w/Statitrac
A = DX Cooling, No Heat and above).
E = DX Cooling, Electric Heat 4 = 100% Exhaust 5 HP w/Statitrac
F = DX Cooling, Natural Gas Heat H = High Heat-2-Stage 5 = 100% Exhaust 7.5 HP w/Statitrac
L = DX Cooling, Hot Water Heat K = Low Heat - Ultra Modulating Gas 6 = 100% Exhaust 10 HP w/Statitrac
S = DX Cooling, Steam Heat Heat 7 = 100% Exhaust 15 HP w/Statitrac
X = DX Cooling, No Heat, Extended L = Low Heat-2-Stage 8 = 100% Exhaust 20 HP w/Statitrac
Casing M = Low Heat- Full Modulation B = 50% Exhaust 3 HP
0 = No Heat C = 50% Exhaust 5 HP
P = High Heat-Full Modulation D = 50% Exhaust 7.5 HP
Digit 3 — Unit Airflow T = High Heat - Ultra Modulating Gas F = 100% Exhaust 3 HP w/o Statitrac
H = Single Zone Heat (CV Only)
G= 100% Exhaust 5 HP w/o Statitrac
Note: When the second digit calls for “E” (CV Only)
Digit 4 — Development
(electric heat), the following H= 100% Exhaust 7.5 HP w/o Statitrac
Sequence values apply: (CV Only)
L = Sixth J = 100% Exhaust 10 HP w/o Statitrac
D = 30 kW R = 130 kW (CV Only)
H = 50 kW U = 150 kW K = 100% Exhaust 15 HP w/o Statitrac
Digits 5,6,7 — Nominal Capacity L = 70 kW V = 170 kW (CV Only)
*20 = 20 Tons Air-Cooled N = 90 kW W = 190 kW L = 100% Exhaust 20 HP w/o Statitrac
*25 = 25 Tons Air-Cooled Q = 110 kW (CV Only)
*30 = 30 Tons Air-Cooled 9 = 100% Return 3 HP w/Statitrac
*40 = 40 Tons Air-Cooled Note: When the second digit calls for “L” M= 100% Return 5 HP w/Statitrac
*50 = 50 Tons Air-Cooled (Hot Water) or “S” (Steam) Heat, N= 100% Return 7.5 HP w/Statitrac
*55 = 55 Tons Air-Cooled one of the following valve size P = 100% Return 10 HP w/Statitrac
*60 = 60 Tons Air-Cooled values must be in Digit 9: R = 100% Return 15 HP w/Statitrac
*70 = 70 Tons Air-Cooled T = 100% Return 20 HP w/Statitrac
*75 = 75 Tons Air-Cooled High Heat Coil: U= 100% Return 3 HP w/o Statitrac
*24 = 24 Tons Evap Condenser 1 = .50" 2 = .75" 3 = 1" (CV Only)
*29 = 29 Tons Evap Condenser 4 = 1.25" 5 = 1.5" 6 = 2" V = 100% Return 5 HP w/o Statitrac
*36 = 36 Tons Evap Condenser (CV Only)
*48 = 48 Tons Evap Condenser W= 100% Return 7.5 HP w/o Statitrac
Low Heat Coil: (CV Only)
*59 = 59 Tons Evap Condenser
*73 = 73 Tons Evap Condenser A = .50" B = .75" C = 1" X= 100% Return 10 HP w/o Statitrac
*80 = 80 Tons Evap Condenser D = 1.25" E = 1.5" F = 2" (CV Only)
*89 = 89 Tons Evap Condenser Y = 100% Return 15 HP w/o Statitrac
Digit 10 — Design Sequence (CV Only)
Z = 100% Return 20 HP w/o Statitrac
Digit 8 — Power Supply A = First (Factory Assigned) (CV Only)
4 = 460/60/3 XL E = 200/60/3 XL Note: Sequence may be any letter A thru
5 = 575/60/3 XL F = 230/60/3 XL Z, or any digit 1 thru 9.

Note: SEHL units (units with electric

heat) utilizing 208V or 230V require
dual power source.

RT-PRC036T-EN 37
Model Number Descriptions

Digit 12 — Exhaust/Return Air G =

7.5 HP DDP 120W Digit 17 — System Control
Fan Drive H =
10 HP DDP 80W (60-89T = 2 x 5 HP)
1 = CV - Zone Temp Control
(Exhaust/Return Fan) J =
10 HP DDP 120W (60-89T = 2 x 5 HP)
2 = CV - Discharge Temp Control
0 = None 8 = 800 RPM K =
15 HP DDP 80W (60-89T = 2 x 7.5 HP)
4 = CV - Zone Temp Control
4 = 400 RPM 9 = 900 RPM L =
15 HP DDP 120W (60-89T = 2 x 7.5 HP)
Space Pressure Control w/ Exhaust/
5 = 500 RPM A = 1000 RPM M =
20 HP DDP 80W (60-89T = 2 x 10 HP)
Return VFD w/o Bypass
6 = 600 RPM B = 1100 RPM N =
20 HP DDP 120W (60-89T = 2 x 10 HP)
5 = CV - Zone Temp Control
7 = 700 RPM P =
25 HP DDP 80W Space Pressure Control w/
(Return Fan only) R =
25 HP DDP 120W Exhaust/Return VFD and Bypass
C = 1200 RPM H = 1700 RPM T =
30 HP DDP 80W (60-89T = 2 x 15 HP) 6 = VAV Discharge Temp Control w/ VFD
D = 1300 RPM J = 1800 RPM U =
30 HP DDP 120W (60-89T = 2 x 15 HP) w/o Bypass
E = 1400 RPM K = 1900 RPM V =
40 HP DDP 80W(60-89T = 2 x 20 HP) 7 = VAV Discharge Temp Control w/ VFD
F = 1500 RPM W =
40 HP DDP 120W (60-89T = 2 x 20 HP) and Bypass
G = 1600 RPM X =
50 HP DDP 80W(70 & 75-89T = 2 x 25 8 = VAV Discharge Temp Control Supply
Digit 13 — Filter (Pre DX/Final) HP) and Exhaust/Return Fan w/ VFD w/o
Y = 50 HP DDP 120W (70 & 75-89T = 2 x Bypass
A = Throwaway 25 HP) 9 = VAV Discharge Temp Control Supply
B = Cleanable Wire Mesh Z = 30 HP DDP 100W(a) and Exhaust/Return Fan with VFD
C = High-Efficiency Throwaway and Bypass
(a) 50, 55T only
D = Bag With Prefilter A = VAV - Single Zone VAV - w/VFD w/o
E = Cartridge with Prefilter Bypass
F = Throwaway Filter Rack (filter not Digit 15 Supply Air Fan RPM
B = VAV - Single Zone VAV - w/VFD and
included) 4 = 400 RPM F = 1500 RPM Bypass
G = Bag Filter Rack (filter not included) 5 = 500 RPM G = 1600 RPM C = VAV - Single Zone VAV - Supply and
H = Standard Throwaway Filter/Cartridge 6 = 600 RPM H = 1700 RPM Exhaust/Return Fan w/ VFD w/o
Final Filters 7 = 700 RPM J = 1800 RPM Bypass
J = High Efficiency Throwaway Filter/ 8 = 800 RPM K = 1900 RPM D = VAV - Single Zone VAV - Supply and
Cartridge Final Filters 9 = 900 RPM L = 2000 RPM Exhaust/Return Fan w/ VFD w/
K = Bag Filters with 2"Throwaway A = 1000 RPM M = 2100 RPM Bypass
Prefilters/Cartridge Final Filters B = 1100 RPM N = 2200 RPM
L = Cartridge Filters with 2"Throwaway C = 1200 RPM P = 2300 RPM
Prefilters /Cartridge Final Filters D = 1300 RPM R = 2400 RPM
M= Standard Throwaway Filter/Cartridge E = 1400 RPM
Final Filters with 2"Throwaway
Prefilters
N = High Efficiency Throwaway Filters/ Digit 16 — Outside Air
Cartridge Final Filters with A = No Fresh Air
2"Throwaway Prefilters B = 0-25% Manual
P = Bag Filters with Prefilters/Cartridge D = 0-100% Economizer
Final Filters with 2"Throwaway E = 0-100% Economizer w/ Traq/DCV
Prefilters F = 0-100% Economizer w/DCV (Design
Q = Cartridge Filters with Prefilters/ Special)
Cartridge Final Filters with
2"Throwaway Prefilters
Note: Must install CO2 sensor(s) for DCV
R = High Efficiency Throwaway/Final to function properly
filter rack (no filters)
T = 2" and 1" Vertical Filter Rack (no
filters) /Final Filter Rack (no filters)

Digit 14 — Supply Air Fan HP

1 = 3 HP FC
2 = 5 HP FC
3 = 7.5 HP FC
4 = 10 HP FC
5 = 15 HP FC
6 = 20 HP FC
7 = 25 HP FC
8 = 30 HP FC
9 = 40 HP FC
A = 50 HP FC
B = 3 HP DDP 80W
C = 3 HP DDP 120W
D = 5 HP DDP 80W
E = 5 HP DDP 120W
F = 7.5 HP DDP 80W

38 RT-PRC036T-EN
 Model Number Descriptions

Digit 18 — Zone Sensor Digits 21 to 38 — Misc 7 = Trane® LonTalk®

Communication Interface (LCI)
0 = None 21 A = Unit Disconnect Switch
Module
A = Dual Setpoint Manual or Auto 22 B = Hot Gas Bypass
36 8 = Spring Isolators
Changeover (BAYSENS108*) C = Hot Gas Reheat w/out Hot Gas 37 6 = Factory-Powered 15A GFI
B = Dual Setpoint Manual or Auto Bypass Convenience Outlet/Disconnect
Changeover w/ System Function D = Hot Gas Reheat and Hot Gas Switch
Lights (BAYSENS110*) Bypass
38 A = Supply Fan Piezometer
C = Room Sensor w/ Override and 23 0 = Without Economizer
J = Temperature Sensor
Cancel Buttons (BAYSENS073*) C = Economizer Control w/
D = Room Sensor w/ Temperature Comparative Enthalpy
Tip: Example
Adjustment and Override and Z = Economizer Control w/
Model numbers:
Cancel Buttons (BAYSENS074*) Reference Enthalpy SAHL*5040A68A6BD800100W00
L = Programmable Zone Sensor w/ W = Economizer Control w/Dry Bulb G0B000R000800 describes a unit
System Function Lights for 24 E = Low Leak Economizer Dampers with the following characteristics:
CV, SZVAV, and VAV (BAYSENS119*) U = Ultra Low Leak Economizer DX Cooling Only unit w/ no
Dampers and Ultra Low Leak extended casing, 50 ton nominal
motorized exhaust dampers cooling capacity, 460/60/3 power
Note: *Asterisk indicates current model
when exhaust/return option supply,100 percent exhaust with
number digit A, B, C, etc. These
includes motorized dampers Statitrac, 10 HP exhaust fan motor
sensors can be ordered to ship
25 F = High Duct Temperature with drive selection No. 8 (800
with the unit.
Thermostat RPM), throwaway filters, 20 HP
Digit 19 — Ambient Control 26 D = Digital Scroll (20-30 Ton, supply fan motor with drive
0 = Standard Design Special) selection No. B (1100 RPM), 0-
1 = 0° Fahrenheit G = High Capacity Unit 100% economizer w/ dry bulb
H = High Efficiency Unit control, supply and exhaust VFD
Digit 20 — Agency Approval V = eFlex Variable Speed w/o bypass, no remote panel,
0 = None (cULus Gas Heater, see Compressor standard ambient control, cULus
note) 27 0 = Air-Cooled Aluminum Condenser agency approval. High capacity
1 = cULus Coil unit, extended grease lines and
Note: Includes cULus classified gas J = Corrosion Protected Condenser spring isolators. The service digit
heating section only when second Coil for each model number contains
digit of Model No. is a “F.” A = Evap Condenser 38 digits; all 38 digits must be
B = Evap Condenser w/ Sump Heater referenced.
C = Evap Condenser w/ Dolphin
WaterCare System
D = Evap Condenser w/ Sump Heater
and Dolphin WaterCare System
E = Evap Condenser w/ Conductivity
Controller
F = Evap Condenser w/ Conductivity
Controller and Sump Heater
28 B = GBAS 0-10V
K = GBAS 0-5V
R = Rapid Restart
29 A = Motors w/ Internal Shaft
Grounding
30 M = Remote Human Interface
31 N = Ventilation Override Module
32 0 = None
R = Extended Grease Lines
1 = Differential Pressure Gauge
2 = Extended Grease Lines and
Differential Pressure Gauge
33 0 = Standard Panels
T = Access Doors
U = IRU - w/ Std Panels
W = IRU - w/ Access Doors
Y = IRU w/SST - w/ Std Panels
Z = IRU w/SST - w/ Access Doors
34 V = Inter-Processor
Communication Bridge
35 M = BACnet® Communication
Interface (BCI) Module
Y = Trane® Communication Interface
(TCI) Module

RT-PRC036T-EN 39
Model Number Descriptions

S X H K *11 4 0 A H 8 C E C D 8 0 0 1 * * Z * * * * * * * * * * * * * * *

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38

Digit 1 — Unit Type DIgit 11 — Exhaust Option Digit 14 — Supply Air Fan HP
S = Self-Contained (Packaged Rooftop) 0 = None C = 30 HP (2-15 HP)
7 = 100% Exhaust 15 HP w/Statitrac D = 40 HP (2-20 HP)
Digit 2 — Unit Function
8 = 100% Exhaust 20 HP w/Statitrac E = 50 HP (2-25 HP)
E = DX Cooling, Electric Heat F = 60 HP (2-30 HP)
9 = 100% Exhaust 25 HP w/Statitrac
F = DX Cooling, Natural Gas Heat G = 80 HP (2-40 HP)
F = 50% Exhaust 15 HP
L = DX Cooling, Hot Water Heat H = 100% Exhaust 30 HP w/ Statitrac Digit 15 — Supply Air Fan Drive
S = DX Cooling, Steam Heat
J = 100% Exhaust 40 HP w/ Statitrac A = 1000 RPM
X = DX Cooling, No Heat, Extended
K = 100% Exhaust 15 HP w/o Statitrac B = 1100 RPM
Casing
(CV Only) C = 1200 RPM
Digit 3 — Unit Airflow L = 100% Exhaust 20 HP w/o Statitrac D = 1300 RPM
(CV Only) E = 1400 RPM
H = Single Zone
M= 100% Exhaust 25 HP w/o Statitrac F = 1500 RPM
Digit 4 — Development (CV Only) G = 1600 RPM
Sequence N = 100% Exhaust 30 HP w/o Statitrac
(CV Only)
Digit 16 — Outside Air
K = R-410A Development Sequence D = 0-100% Economizer (Std.)
P = 100% Exhaust 40 HP w/o Statitrac
Digits 5,6,7 — Nominal Capacity (CV Only) E = 0-100% Economizer w/ Traq w/ DCV
*90 = 90 Tons Air-Cooled F = 0-100% Economizer w/DCV (Design
*11 = 105 Tons Air-Cooled Digit 12 — Exhaust Air Fan Drive Special)
*12 = 115 Tons Air-Cooled (Exhaust Fan) Note: Must install CO2 sensor(s) for DCV
*13 = 130 Tons Air-Cooled 0 = None to function properly
5 = 500 RPM
Digit 8 — Power Supply 6 = 600 RPM
Digit 17 — System Control
(See Notes) 7 = 700 RPM 1 = CV - Zone Temperature Control
4 = 460/60/3 XL 8 = 800 RPM 2 = CV - Discharge Temperature Control
5 = 575/60/3 XL Digit 13 — Filter (Pre DX/Final) 4 = CV - Zone Temperature Control
Space Pressure Control w/Exhaust
Digit 9 — Heating Capacity A = Throwaway VFD w/o Bypass
H = High heat—2-stage C = High-Efficiency Throwaway 5 = CV - Zone Temperature Control
O = No heat D = Bag With Prefilter Space Pressure Control w/Exhaust
P = High heat—full modulation E = Cartridge with Prefilter VFD and Bypass
T = High heat—ultra modulation F = Throwaway Filter Rack (filter not 6 = VAV Discharge Temperature Control
included) w/VFD w/o Bypass
Note: When the second digit calls for “E” G = Bag Filter Rack (Filter Not Included) 7 = VAV Discharge Temperature Control
(electric heat), the following H = StandardThrowaway Filter/Cartridge w/VFD and Bypass
values apply in the ninth digit: Final Filters 8 = VAV Discharge Temperature Control
J = High EfficiencyThrowaway Filter/ Supply and Exhaust Fan w/VFD w/o
W = 190 kW Cartridge Final Filters Bypass
K = Bag Filters with 2"Throwaway 9 = VAV Discharge Temperature Control
Note: When the second digit calls for “L” Prefilters/Cartridge Final Filters Supply and Exhaust Fan w/VFD and
(Hot Water) or “S” (Steam) Heat, L = Cartridge Filters with 2" Throwaway Bypass
one of the following valve size Prefilters /Cartridge Final Filters A = VAV – Single Zone VAV – w/VFD
values must be in Digit 9: M= StandardThrowaway Filter/Cartridge w/o Bypass
High Heat Coil: 3 = 1", 4 = 1.25", 5 = 1.5", Final Filters with 2" Throwaway B = VAV – Single Zone VAV – w/VFD
6 = 2", 7 = 2.5”. Prefilters w/Bypass
Low Heat Coil: C = 1", D = 1.25", E = 1.5", N = High EfficiencyThrowaway Filters/ C = VAV – Single Zone VAV – Supply and
F = 2", G = 2.5”. Cartridge Final Filters with 2" Exhaust/Return Fan w/VFD w/o
Throwaway Prefilters Bypass
Digit 10 — Design Sequence
P = Bag Filters with Prefilters Cartridge D = VAV – Single Zone VAV – Supply and
A = First (Factory Assigned) Final Filters with 2"Throwaway Exhaust/Return Fan w/VFD w/Bypass
Note: Sequence may be any letter A thru Prefilters 0 = None
Z, or any digit 1 thru 9. Q = Cartridge Filters with Prefilters/ A = Dual Setpoint Manual or Auto
Cartridge Final Filters with 2" Changeover (BAYSENS108*)
Throwaway Prefilters B = Dual Setpoint Manual or Auto
Changeover w/ System Function
Lights (BAYSENS110*)
C = Room Sensor w/ Override and Cancel
Buttons (BAYSENS073*)

40 RT-PRC036T-EN
 Model Number Descriptions

D = Room Sensor w/Temperature M = BACnet Communication

Adjustment and Override and Cancel Interface (BCI) Module
Buttons (BAYSENS074*) 7 = Trane LonTalk Communication
L = Programmable Zone Sensor Interface (LCI) Module
w/System Function Lights for both 37 6 = Factory-Powered 15A GFI
CV and VAV (BAYSENS119*) Convenience Outlet
Note: *Asterisk indicates current model
number digit A, B, C, etc. These Tip: Example
sensors can be ordered to ship Model numbers:
with the unit. SXHK*1140AH8CECD8001**Z
describes a unit with the following
Digit 19 — Ambient Control characteristics:
0 = Standard DX cooling with extended casing,
Digit 20 — Agency Approval no heat, 105 ton nominal cooling
capacity, 460/60/3 power supply,
0 = None (cULus Gas Heater, see note) 100 percent exhaust with Statitrac,
1 = cULus 30 h.p. exhaust fan motor with
Note: Includes cULus classified gas drive selection No. 8 - (800 RPM),
heating section only when second high-efficiency throwaway filters,
digit of Model No. is a “F.” 50 hp supply fan motor with 1200
RPM, economizer, w/ reference
Digits 21 to 38 — Miscellaneous enthalpy control, Supply and
21 A = Unit Disconnect Switch Exhaust with VFD but no bypass,
22 B = Hot Gas Bypass cULus agency approval.
23 C = Economizer Control w/ The service digit for each model
number contains 36 digits; all 36
Comparative Enthalpy
digits must be referenced.
Z = Economizer Control w/
Reference Enthalpy
W = Economizer Control w/Dry Bulb
24 E = Low Leak Economizer Dampers
U = Ultra Low Leak Economizer
Dampers and Ultra Low Leak
motorized exhaust dampers
when exhaust/return option
includes motorized dampers
25 F = High Duct Temperature
Thermostat
26 G = High Capacity Evap. Coil
(105 Ton)
H = High Cap. Evap. Coil and High
Eff. Cond. Coil (90 Ton)
27 0 = Air-Cooled Aluminum Condenser
Coil
J = Corrosion-Protected Condenser
Coil
28 K = Generic B.A.S Module
R = Rapid Restart
29 A = Motors w/ Internal Shaft
Grounding
30 M = Remote Human Interface
31 N = Ventilation Override Module
32 0 = None
R = Extended Grease Lines
1 = Differential Pressure Gauge
2 = Extended Grease Lines and
Differential Pressure Gauge
33 0 = Standard Panels
T = Access Doors
U = IRU - w/ Std Panels
W = IRU - w/ Access Doors
Y = IRU w/SST - w/ Std Panels
34 V = Inter-Processor
Communication Bridge
35 Y = Trane Communication Interface
(TCI) Module

RT-PRC036T-EN 41
 General Data
42

Table 6. General Data - 20 to 50 Tons

20 Ton 25 Ton 30 Ton 40 Ton 50 Ton
Compressor Data - Standard Capacity(a)
Number/Size (Nominal) 2/10 1/10, 1/11.5 2/13.5 2/7.5, 2/9 4/10
Model Scroll Scroll Scroll Scroll Scroll
Unit Capacity Steps (%) 100/50 100/46 100/50 100/72/45/23 100/75/50/25
RPM 3450 3450 3450 3450 3450
No. of Circuits 1 1 1 2 2
Compressor Data - High Capacity/High Efficiency(a)
Number/Size (Nominal) 2/10.5 1/10, 1/13.5 1/13.5, 1/15 4/9 2/10, 2/11.5
Model Scroll Scroll Scroll Scroll Scroll
Unit Capacity Steps (%) 100/50 100/43 100/47 100/75/50/25 100/73/46/23
RPM 3450 3450 3450 3450 3450
No. of Circuits 1 1 1 2 2
Compressor Data - Variable Speed(a)
Number/Size (Nominal) N/A N/A N/A 1/4-17 VS, 1/9, 1/7.5 1/6-25 VS, 1/10, 1/11.5
Model N/A N/A N/A Scroll Scroll
Unit Capacity Steps (%) N/A N/A N/A 15-100 15-100
No. of Circuits N/A N/A N/A 2 2
Air-Cooled Condenser Fans
Number/Size/Type 2/26"/Prop 3/26"/Prop 3/26"/Prop 4/26"/Prop 6/26"/Prop
Hp (each) 1 1 1 1 1
Cycle/Phase 60/3 60/3 60/3 60/3 60/3
Evaporator Fans
Number/Size/Type 2/15"/FC 1/22.2”/DDP 2/15"/FC 1/22.2”/DDP 2/18"/FC 1/24.5”/DDP 2/20"/FC 1/27.0”/DDP 2/20"/FC 1/30.0”/DDP
Number of Motors 1 1 1 1 1 1 1 1 1 1
Hp Range 3-20 3-20 3-20 3-20 5-20 3-20 7.5-30 3-25 7.5-30 5-30
Cfm Range(b) 4000-9000 4000-9000 5000-11000 5000-11000 6000-13500 6000-13500 8000-18000 8000-18000 10000-22500 10000-22500
ESP Range - (In. WG) 0.25-4.0 0.25-4.0 0.25-4.0 0.25-4.0 0.25-4.0 0.25-4.0 0.25-4.0 0.25-4.0 0.25-4.0 0.25-4.0
Exhaust Fans 50% 100% 50% 100% 50% 100% 50% 100% 50% 100%
Number/Size/Type 1/15"/FC 2/15"/FC 1/15"/FC 2/15"/FC 1/15"/FC 2/15"/FC 1/18"/FC 2/18"/FC 1/18"/FC 2/18"/FC
Hp Range 3 3 3 3-5 3-5 3-7.5 5-7.5 5-10 5-7.5 5-15
Cfm Range(b) 2000-6000 4000-10000 2000-6000 4000-12000 2000-7000 4000-14000 3000-11000 7500-16000 3000-11000 9000-20000
ESP Range - (In. WG) 0.25-1.4 0.2-2.0 0.25-1.4 0.2-2.0 0.25-1.4 0.2-2.0 0.25-1.4 0.2-2.0 0.25-1.4 0.2-2.0
Return Fans
Number/Size/Type 1/24.5/AF 1/24.5/AF 1/24.5/AF 1/27.0/AF 1/27.0/AF
Hp Range 3.0 3.0 - 5.0 HP 3.0 - 7.5 5.0 - 10.0 5.0 - 15.0
Cfm Range(b) 4000-9000 4000-11000 4000-12500 7500-18000 9000-20000
ESP Range - (In. WG) 0.25 - 2.0 0.25 - 2.0 0.25 - 2.0 0.25 - 2.0 0.25 - 2.0
Evaporator Coil
Size (Ft) 20.3 20.3 25.5 32.5 38
Rows/Fin Series 4/168 4/168 5/168 5/168 4/168
Tube Diameter/Surface 1/2”/Enhanced 1/2”/Enhanced 3/8”/Enhanced 3/8”/Enhanced 1/2”/Enhanced
Air-Cooled Condenser Coil
Face Area (Ft2) 58 58 58 116 116
Fin Series 252 252 252 252 252
RT-PRC036T-EN

Type Microchannel Microchannel Microchannel Microchannel Microchannel

Electric Heat
kW Range(c) 30-110 30-130 30-150 50-170 70-190
Capacity Steps: 3 3 3 3 3
 Table 6. General Data - 20 to 50 Tons (continued)
RT-PRC036T-EN

20 Ton 25 Ton 30 Ton 40 Ton 50 Ton

Natural Gas Heat
Standard Gas Heat(d)
Low Heat Input 235 235 350 350 500
High Heat Input 500 500 500 850 850
Std. Heating Capacity Steps: 2 2 2 2 2
Modulating Gas Heat (Not Available on 20 to 40 Ton Models with Low Heat)
Full(e) and Ultra(f) Modulation See Table 10 See Table 10 See Table 10 See Table 10 See Table 10
Heat Exchanger Type Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel
Hot Water Coil
Size (Inches) 30x66x2 Row 30x66x2 Row 30x66x2 Row 42x66x2 Row 42x66x2 Row
5W Prima-Flo E w/ 5W Prima-Flo E w/ 5W Prima-Flo E w/ 5W Prima-Flo E w/ 5W Prima-Flo E w/
Type
turbolators turbolators turbolators turbolators turbolators
High Heat (Fins/Ft) 110 110 110 110 110
Low Heat (Fins/Ft) 80 80 80 80 80
Steam Coil
30x66x1 Row 30x66x1 Row
Size (Inches) 30x66x1 Row 30x66x1 Row 30x66x1 Row
12x66x1 Row 12x66x1 Row
Type Type NS Type NS Type NS Type NS Type NS
High Heat (Fins/Ft) 96 96 96 96 72
Low Heat (Fins/Ft) 42 42 42 42 42
Pre-Evap Filters
Panel Filters
Number/Size (Inches) 12 - 20x20x2 12 - 20x20x2 16 - 20x20x2 16 - 20x25x2 20 - 20x25x2
Face Area (Ft2) 33.3 33.3 44.4 55.5 69.4
Bag Filters
4 - 12x24x19 4 - 12x24x19 2 - 12x24x19 5 - 12x24x19 3 - 12x24x19
Number/Size (Inches)
3 - 24x24x19 3 - 24x24x19 6 - 24x24x19 6 - 24x24x19 9 - 24x24x19
4 - 12x24x12 4 - 12x24x12 2 - 12x24x12 5 - 12x24x12 3 - 12x24x12
Cartridge Filters
3 - 24x24x12 3 - 24x24x12 6 - 24x24x12 6 - 24x24x12 9 - 24x24x12
4 - 12x24x2 4 - 12x24x2 2 - 12x24x2 5 - 12x24x2 3 - 12x24x2
Prefilters (For Bag & Cartridge)
3 - 24x24x2 3 - 24x24x2 6- 24x24x2 6 - 24x24x2 9 - 24x24x2
Face Area (Ft2) 20 20 28 34 42
Final Filters (SX Units only)
Cartridge Filters 4 - 12x24x12 4 - 12x24x12 1 - 12x24x12 5 - 12x24x12 2 - 12x24x12
Number/Size (Inches) 3 - 24x24x12 3 - 24x24x12 6 - 24x24x12 6 - 24x24x12 9 - 24x24x12
Prefilters 4 - 12x24x2 4 - 12x24x2 1 - 12x24x2 5 - 12x24x2 2 - 12x24x2
(For Cartridge Filters) 3 - 24x24x2 3 - 24x24x2 6 - 24x24x2 6 - 24x24x2 9 - 24x24x2
Face Area (Ft2) 20 20 26 34 40
Standard Unit Minimum Outside Air Temperature for Mechanical Cooling(g)
Without Hot Gas Option 55°F 50°F 50°F 55°F 45°F
With Hot Gas Option 55°F 50°F 50°F 55°F 45°F
Low Ambient Option Minimum Outside Air Temperature
Without Hot Gas Option 0°F 0°F 0°F 0°F 0°F
With Hot Gas Option 10°F 10°F 10°F 10°F 10°F
(a) 20 to 30 ton models are single circuit, 40 ton models are dual circuit.
(b) For CFM values outside these ranges, contact your local Trane® sales office.

General Data
(c) Refer to Table 52, p. 84 for availability of electric heat kW ranges by voltage
(d) Two-stage gas heat: 1st stage 50% of heater MBh.
(e) The firing rate of the unit can vary from pilot rate of 125 MBh up to the nameplate rating of the unit.
(f) The firing rate of the unit can vary from 36 MBh on 500 MBh or 48 MBh on 850 MBh gas heat exchangers, up to the nameplate rating of the unit.
(g) Maximum return temperatures of 95ºF. Any higher, contact Product Support.
43
General Data

Table 7. General Data - 55 to 75 Tons

55 Ton 60 Ton 70 Ton 75 Ton
Compressor Data - Standard Capacity
Number/Size (Nominal) 4/11.5 2/11.5, 2/13.5 4/15 2/14.5, 2/20
Model Scroll Scroll Scroll Scroll
Unit Capacity Steps (%) 100/75/50/25 100/73/46/23 100/75/50/25 100/71/43/21
RPM 3450 3450 3450 3450
No. of Circuits 2 2 2 2
Compressor Data - High Capacity/High Efficiency
Number/Size (Nominal) 4/11.5 4/13.5 4/15 2/15.5, 2/21
Model Scroll Scroll Scroll Scroll
Unit Capacity Steps (%) 100/75/50/25 100/73/46/23 100/75/50/25 100/71/43/21
RPM 3450 N/A 3450 N/A
No. of Circuits 2 2 2 2
Compressor Data - Variable Speed
Number/Size (Nominal) 1/6-25 VS, 1/11.5, 1/13.5 1/6-25 VS, 1/13.5, 1/15 1/6-25 VS, 1/15, 1/20 N/A
Model Scroll Scroll Scroll N/A
Unit Capacity Steps (%) 15-100 15-100 15-100 N/A
No. of Circuits 2 2 2 N/A
Condenser Fans
Number/Size/Type 6/26"/Prop 6/26"/Prop 6/26"/Prop 6/26"/Prop
Hp (each) 1 1 1 1
Cycle/Phase 60/3 60/3 60/3 60/3
Evaporator Fans
Number/Size/Type 2/20"/FC 1/30.0"/DDP2/22"/FC 2/24.5"/DDP 2/22"/FC 2/27.0"/DDP 2/22"/FC 2/27.0"/DDP
Number of Motors 1 1 1 2(a) 1 2 1 2
Hp Range 7.5-30 5-30 10-50(b) 10-40 10-50(b) 10-50 10-50(b) 10-50
Cfm Range(c) 10000-22500 14000-27000 16000-27000 16000-27000
ESP Range - (In. WG) 0.25-4.0 0.25-4.0 0.25-4.0 0.25-4.0
Exhaust Fans 50% 100% 50% 100% 50% 100% 50% 100%
Number/Size/Type 1/18"/FC 2/18"/FC 1/20"/FC 2/20"/FC 1/20"/FC 2/20"/FC 1/20"/FC 2/20"/FC
Hp Range 5-7.5 5-15 5-7.5 5-20 5-7.5 5-20 5-7.5 5-20
12000- 12000-
Cfm Range(c) 3000-11000 9000-20000 4000-13000 4000-13000 12000-27000 4000-13000
27000 27000
ESP Range - (In. WG) 0.25-1.4 0.20-2.0 0.25-1.4 0.20-2.0 0.25-1.4 0.20-2.0 0.25-1.4 0.20-2.0
Return Fans
Number/Size/Type 1/27.0/AF 1/36.5/AF 1/36.5/AF 1/36.5/AF
Hp Range 5.0 - 15.0 5.0 - 20.0 5.0 - 20.0 5.0 - 20.0
Cfm Range(c) 9000-20000 12000-27000 12000-27000 12000-27000
ESP Range - (In. WG) 0.25 - 2.0 0.25 - 2.0 0.25 - 2.0 0.25 - 2.0
Evaporator Coil
Size (Ft) 38 43 43 43
Rows/Fin Series 4/168 6/168 6/168 6/168
Tube Diameter/Surface 1/2”/Enhanced 3/8”/Enhanced 3/8”/Enhanced 3/8”/Enhanced
Air-Cooled Condenser Coil
Face Area (Ft2) 116 136 136 136
Fin Series 252 252 252 252
Type Microchannel Microchannel Microchannel Microchannel
Electric Heat
kW Range(d) 70-190 90-190 90-190 90-190
Capacity Steps: 3 3 3 3
Natural Gas Heat
Standard Gas Heat(e)
Low Heat Input 500 500 500 500
High Heat Input 850 850 850 850
Standard Heating Capacity
2 2 2 2
Steps:
Modulating Gas Heat
Full(f) and Ultra(g) Modulation See Table 10 See Table 10 See Table 10 See Table 10
Heat Exchanger Type Stainless Steel Stainless Steel Stainless Steel Stainless Steel
Hot Water Coil
Size (Inches) 42x66x2 Row 42x90x2 Row 42x90x2 Row 42x90x2 Row
Type 5W Prima-Flo E w/ 5W Prima-Flo E w/ 5W Prima-Flo E w/ 5W Prima-Flo E w/
turbolators turbolators turbolators turbolators
High Heat (Fins/Ft) 110 110 110 110
Low Heat (Fins/Ft) 80 80 80 80

44 RT-PRC036T-EN
 General Data

Table 7. General Data - 55 to 75 Tons (continued)

55 Ton 60 Ton 70 Ton 75 Ton
Steam Coil
Size (Inches) 30x66x1 Row 30x90x1 Row 30x90x1 Row 30x90x1 Row
12x66x1 Row 12x90x1 Row 12x90x1 Row 12x90x1 Row
Type Type NS Type NS Type NS Type NS
High Heat (Fins/Ft) 96 72 72 72
Low Heat (Fins/Ft) 42 42 42 42
Pre-Evap Filters
Panel Filters
Number/Size (Inches) 20 - 20x25x2 35 - 16x20x2 35 - 16x20x2 35 - 16x20x2
Face Area (Ft2) 69.4 77.8 77.8 77.8
Bag Filters
Number/Size (Inches) 3 - 12x24x19 6 - 12x24x19 6 - 12x24x19 6 - 12x24x19
9 - 24x24x19 8 - 24x24x19 8 - 24x24x19 8 - 24x24x19
Cartridge Filters 3 - 12x24x12 6 - 12x24x12 6 - 12x24x12 6 - 12x24x12
9 - 24x24x12 8 - 24x24x12 8 - 24x24x12 8 - 24x24x12
Prefilters (For Bag & Cartridge) 3 - 12x24x2 6 - 12x24x2 6 - 12x24x2 6 - 12x24x2
9 - 24x24x2 8 - 24x24x2 8 - 24x24x2 8 - 24x24x2
Face Area (Ft2) 42 44 44 44
Final Filters (SX Units only)
Cartridge Filters 2 - 12x24x12 6 - 12x24x12 6 - 12x24x12 6 - 12x24x12
Number/Size (Inches) 9 - 24x24x12 8 - 24x24x12 8 - 24x24x12 8 - 24x24x12
Prefilters 2 - 12x24x2 6 - 12x24x2 6 - 12x24x2 6 - 12x24x2
(For Cartridge Filters) 9 - 24x24x2 8 - 24x24x2 8 - 24x24x2 8 - 24x24x2
Face Area (Ft2) 40 44 44 44
Standard Unit Min. Outside Air Temperature For Mechanical Cooling(h)
Without Hot Gas Option 35°F 30°F 45°F 45°F
With Hot Gas Option 35°F 30°F 45°F 45°F
Low Ambient Option Min. Outside Air Temp
Without Hot Gas Option 0°F 0°F 0°F 0°F
With Hot Gas Option 10°F 10°F 10°F 10°F
(a) 60 ton units with gas heat require the 27" DDP fans.
(b) 40 and 50 Hp available as standard in 460 and 575 volt only.
(c) For CFM values outside these ranges, contact your local Trane® sales office.
(d) Refer to Table 52, p. 84 for availability of electric heat kW ranges by voltage.
(e) Two-stage gas heat: 1st stage 50% of heater MBh.
(f) The firing rate of the unit can vary from pilot rate of 125 MBh up to the nameplate rating of the unit.
(g) The firing rate of the unit can vary from 36 MBh on 500 MBh or 48 MBh on 850 MBh gas heat exchangers, up to the nameplate rating of the unit.
(h) Maximum return temperatures of 95ºF. Any higher, contact Product Support.

RT-PRC036T-EN 45
General Data

Table 8. General Data - 90 to 130 Tons

90 Ton 105 Ton 115 Ton 130 Ton
Compressor Data - Standard Capacity(a)
Number/Size (Nominal) 4/20 2/20 2/25 2/20 2/25 4/25
Model Scroll Scroll Scroll Scroll
Unit Capacity Steps (%) 100/75/50/25 100/72/44/22 100/72/44/22 100/75/50/25
RPM 3450 3450 3450 3450
No. of Circuits 2 2 2 2
Evaporator Fans
Number/Size/Type 2/28"/AF 2/28"/AF 2/28"/AF 2/28"/AF
Number of Motors 2 2 2 2
Hp Range 30-80 30-80 30-80 30-80
Cfm Range(b) 31,000-46,000 31,000-46,000 31,000-46,000 31,000-46,000
ESP Range - (In. WG) 1.0-4.70 1.0-4.70 1.0-4.70 1.0-4.70
Exhaust Fans 50% 100% 50% 100% 50% 100% 50% 100%
Number/Size/Type 1/22"/FC 2/22"/FC 1/22"/FC 2/22"/FC 1/22"/FC 2/22"/FC 1/22"/FC 2/22"/FC
Hp Range 15 15-40 15 15-40 15 15-40 15 15-40
12,000- 28,000- 12,000- 28,000- 12,000- 28,000- 12,000- 28,000-
Cfm Range(b)
20,000 40,000 20,000 40,000 20,000 40,000 20,000 40,000
ESP Range - (In. WG) .25-2.5 .25-2.5 .25-2.5 .25-2.5 .25-2.5 .25-2.5 .25-2.5 .25-2.5
Condenser Fans
Number/Size/Type 8/26"/Prop. 10/26"/Prop. 10/26"/Prop. 12/26"/Prop.
Hp (Each) 1 1 1 1
Cfm 56,400 56,400 56,400 56,400
Cycle/Phase 60/3 60/3 60/3 60/3
Evaporator Coil - Standard Capacity
Dimensions 122.0 x 70.0 NA 122.0 x 70.0 122.0 x 70.0
Size (Ft) 59.3 NA 59.3 59.3
Rows/Fin Series 4/148 NA 6/148 6/148
Tube Diameter/Surface 1/2 Enhanced NA 1/2 Enhanced 1/2 Enhanced
Evaporator Coil - High Capacity
Dimensions 122.0 x 70.0 122.0 x 70.0 NA NA
Size (Ft) 59.3 59.3 NA NA
Rows/Fin Series 6/148 6/148 NA NA
Tube Diameter/Surface 1/2 Enhanced 1/2 Enhanced NA NA
Condenser Coil - Standard Efficiency (Al Fins)
Size (Ft2) N/A 152 152 152
Rows/Fin Series N/A 2/276 2/276 2/276
Type N/A Microchannel Microchannel Microchannel
Condenser Coil - Hi Efficiency (Al Fins)
Size (Ft2) 152 NA NA NA
Rows/Fin Series 2/276 NA NA NA
Tube Diameter Microchannel NA NA NA
Electric Heat
kW Range(c) 190 190 190 190
Capacity Steps 3 3 3 3
Natural Gas Heat
Standard Gas Heat(d)
MBh Heat Input 1000 1000 1000 1000
Standard Heating
2 2 2 2
Capacity Steps:
High Heat - Full(e) and
See Table 10 See Table 10 See Table 10 See Table 10
Ultra(f) Modulation
Heat Exchanger Type Stainless Steel Stainless Steel Stainless Steel Stainless Steel

46 RT-PRC036T-EN
 General Data

Table 8. General Data - 90 to 130 Tons (continued)

90 Ton 105 Ton 115 Ton 130 Ton
Hot Water Coil
Size (Inches) (2) 30x84x2 Row (2) 30x84x2 Row (2) 30x84x2 Row (2) 30x84x2 Row
Type 5W Prima-Flo E w/turbolators 5W Prima-Flo E w/turbolators 5W Prima-Flo E w/turbolators 5W Prima-Flo E w/turbolators
High Heat (Fins/Ft) 110 110 110 110
Low Heat (Fins/Ft) 80 80 80 80
Steam Coil
Size (Inches) (2) 30x84x1 Row (2) 30x84x1 Row (2) 30x84x1 Row (2) 30x84x1 Row
Type Type NS Type NS Type NS Type NS
High Heat (Fins/Ft) 96 96 96 96
Low Heat (Fins/Ft) 52 52 52 52
Filters
Panel Filters
Number/Size (Inches) 25-24x24x2 25-24x24x2 25-24x24x2 25-24x24x2
Face Area (Ft2) 100 100 100 100
Bag Filters 3-12x24x19 3-12x24x19 3-12x24x19 3-12x24x19
Number/Size (Inches) 15-24x24x19 15-24x24x19 15-24x24x19 15-24x24x19
Cartridge Filters 3-12x24x12 3-12x24x12 3-12x24x12 3-12x24x12
15-24x24x12 15-24x24x12 15-24x24x12 15-24x24x12
Prefilters 3-20x24x2 3-20x24x2 3-20x24x2 3-20x24x2
(For Bag & Cartridge) 15-24x24x2 15-24x24x2 15-24x24x2 15-24x24x2
Face Area (Ft2) 66 66 66 66
Final Filters (SX Units only)
Cartridge Filters 5 - 12x24x12 5 - 12x24x12 5 - 12x24x12 5 - 12x24x12
Number/Size (Inches) 10 - 24x24x12 10 - 24x24x12 10 - 24x24x12 10 - 24x24x12
Prefilters 5 - 12x24x2 5 - 12x24x2 5 - 12x24x2 5 - 12x24x2
(For Cartridge Filters) 10- 24x24x2 10- 24x24x2 10 - 24x24x2 10 - 24x24x2
Face Area (Ft2) 50 50 50 50
Standard Unit Minimum Outside Air Temperature for Mechanical Cooling(g)
Without Hot Gas Option 45°F 45°F 45°F 45°F
With Hot Gas Option 45°F 45°F 45°F 45°F
(a) 90 to 130 ton models are dual circuit
(b) For CFM values outside these ranges, contact your local Trane® sales office.
(c) Refer to Table 52, p. 84 for availability of electric heat kW ranges by voltage.
(d) Two-stage gas heat: 1st stage 50% on of heater MBh.
(e) The firing rate of the unit can vary from pilot rate of 125 MBh up to the nameplate rating of the unit.
(f) The firing rate of the unit can vary from 36 MBh on 500 MBh or 48 MBh on 850 and 1000 MBh gas heat exchangers, up to the nameplate rating of the unit.
(g) Maximum return temperatures of 95ºF. Any higher, contact product support.

RT-PRC036T-EN 47
General Data

Table 9. Economizer outdoor air damper leakage (of rated airflow)

ΔP Across Dampers (In. WC)

0.5 (In.) 1.0 (In.)
Standard 1.5 % 2.5 %
Optional Low Leak 0.5 % 1.0 %
Optional Ultra Low Leak 3 CFM/Ft2
Note: Above data for Standard and Low Leak based on tests completed in
accordance with AMCA Standard 500 at AMCA Laboratories. Ultra low leak
damper leakage rate is AMCA certified and meets California Title 24.

Table 10. Gas heat inputs/input ranges

Two-Stage Gas Heat Modulating Gas Heat

Low Fire High Fire Full Modulating Heat Ultra Modulating Heat
Standard Heat Input Heat Input
Gas Heat (MBh) (MBh) (MBh) Input Range (MBh) Input Range (MBh)
235 117 235 NA NA
350 175 350 NA NA
500 250 500 125 - 500 36 - 500
850 425 850 125 - 850 48 - 850
1000 500 1000 125 - 1000 48 - 1000

48 RT-PRC036T-EN
Performance Adjustment Factors
Table 11. Enthalpy of saturated air

Wet Bulb Temperature Btu Per Lb.

40 15.23
41 15.70
42 16.17
43 16.66
44 17.15
45 17.65
46 18.16
47 18.68
48 19.21
49 19.75
50 20.30
51 20.86
52 21.44
53 22.02
54 22.62
55 23.22
56 23.84
57 24.48
58 25.12
59 25.78
60 26.46
61 27.15
62 27.85
63 28.57
64 29.31
65 30.06
66 30.83
67 31.62
68 32.42
69 33.25
70 34.09
71 34.95
72 35.83
73 36.74
74 37.66
75 38.61

RT-PRC036T-EN 49
Performance Adjustment Factors

Figure 6. Air density ratios

Table 12. Cooling capacity altitude correction factors

Altitude (Ft)
Sea Level 1000 2000 3000 4000 5000 6000 7000
Cooling Capacity Multiplier 1.00 0.99 0.99 0.98 0.97 0.96 0.95 0.94
kW Correction Multiplier
1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07
(Compressors)
SHR Correction Multiplier 1.00 .98 .95 .93 .91 .89 .87 .85
Maximum Condenser Ambient 118°F 119°F 120°F 121°F 122°F 123°F 124°F 125°F
Note: SHR = Sensible Heat Ratio

Table 13. Gas heating capacity altitude correction factors

Altitude (Ft)
Sea Level 2001 2501 3501 4501 5501 6501
To 2000 To 2500 To 3500 To 4500 To 5500 To 6500 To 7500
Capacity
1.00 .92 .88 .84 .80 .76 .72
Multiplier
Note: Correction factors are per AGA Std 221.30 - 1964, Part VI, 6.12. Local codes may supersede.

50 RT-PRC036T-EN
Performance Data
Gross Cooling Capacities
Table 14. Gross cooling capacities (MBh) —20 ton air-cooled — standard capacity
Ambient Temperature
85 95 105
Entering Wet Bulb
ENT
DB 61 67 73 61 67 73 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
75 205 145 230 119 255 91 196 140 220 114 244 86 186 134 209 108 230 80
80 207 167 231 141 256 113 198 162 220 136 244 108 189 156 209 130 231 102
4000
85 209 189 232 163 256 135 201 184 222 158 244 129 191 178 211 152 231 123
90 213 212 233 184 256 156 205 205 223 179 245 151 196 196 212 173 232 145
75 230 179 253 139 273 96 219 173 241 134 260 90 207 166 228 127 244 84
80 233 211 254 171 274 128 223 205 242 165 260 122 211 199 229 159 245 116
6000
85 240 240 255 202 274 160 230 230 243 196 261 154 219 219 230 189 245 148
90 252 252 256 233 275 190 242 242 244 227 261 184 230 230 230 220 245 177
75 237 194 260 148 278 97 225 188 247 142 264 92 213 181 233 136 247 86
80 242 232 261 184 278 134 231 226 248 178 264 129 218 218 234 171 247 122
7000
85 252 252 261 220 278 171 242 242 249 213 264 165 230 230 234 206 247 158
90 264 264 262 255 279 206 253 253 249 249 264 199 239 239 235 235 247 192
75 242 208 264 157 281 99 230 202 251 151 266 94 217 195 236 144 250 88
80 249 249 265 196 281 141 239 239 252 190 266 135 226 226 237 183 249 129
8000
85 262 262 266 237 282 182 250 250 252 230 266 175 237 237 237 223 249 168
90 272 272 266 266 283 221 259 259 253 253 267 215 244 244 238 238 250 207
75 247 222 268 165 283 101 234 215 254 159 268 95 221 208 239 153 252 89
80 257 257 268 208 285 148 246 246 255 202 268 142 233 233 239 195 251 136
9000
85 268 268 269 253 285 193 256 256 255 247 269 186 242 242 240 240 251 179
90 278 278 269 269 286 237 264 264 255 255 270 230 249 249 240 240 252 223
Ambient Temperature
115
Entering Wet Bulb
ENT
DB 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC
75 176 129 197 102 216 74
80 179 150 197 124 217 95
4000
85 181 172 199 146 217 117
90 188 188 200 166 218 139
75 194 160 213 121 228 78
80 199 192 214 152 228 109
6000
85 208 208 215 182 228 141
90 217 217 216 213 228 170
75 200 174 217 129 230 79
80 206 206 218 164 230 116
7000
85 217 217 219 199 229 150
90 225 225 219 219 229 184
75 203 188 220 138 232 81
80 213 213 221 176 231 122
8000
85 222 222 221 216 231 160
90 228 228 222 222 231 200
75 206 201 223 143 234 83
80 218 218 223 187 232 129
9000
85 226 226 223 223 232 171
90 232 232 223 223 232 215

RT-PRC036T-EN 51
Performance Data

Table 15. Gross cooling capacities (MBh) — 20 ton air-cooled — high efficiency
Ambient Temperature
85 95 105
Entering Wet Bulb
ENT
DB 61 67 73 61 67 73 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
75 227 160 255 132 284 102 217 154 244 126 272 97 207 148 232 120 258 90
80 230 184 256 155 285 126 220 178 244 149 273 120 209 171 232 143 259 114
4000
85 232 207 257 179 285 149 222 201 246 173 273 143 211 195 234 167 259 137
90 235 231 258 202 285 172 225 225 247 196 273 166 216 216 235 189 259 160
75 255 196 282 154 310 109 243 190 270 148 295 103 231 183 255 141 278 96
80 259 231 284 189 311 144 248 225 271 182 296 137 235 218 256 175 279 130
6000
85 265 265 285 222 311 178 255 255 272 216 296 172 243 243 257 208 279 165
90 279 279 286 255 312 212 268 268 273 248 297 205 256 256 258 241 280 197
75 264 213 291 164 317 112 251 206 277 158 301 105 238 199 262 151 283 98
80 269 254 292 203 318 152 257 247 278 197 302 145 244 240 263 189 283 138
7000
85 280 280 294 242 318 192 269 269 280 235 302 185 256 256 264 227 284 177
90 295 295 295 280 319 229 283 283 281 273 303 222 269 269 265 265 285 214
75 270 228 298 174 322 114 257 221 283 167 305 108 243 214 267 160 286 101
80 278 275 299 217 322 159 265 265 284 210 306 153 252 252 268 203 287 145
8000
85 292 292 300 260 323 203 280 280 285 253 306 196 266 266 269 246 287 188
90 307 307 301 301 323 245 293 293 286 286 307 238 278 278 270 270 287 230
75 276 243 302 183 325 116 262 236 287 176 308 110 247 228 270 169 289 103
80 286 286 303 230 326 167 274 274 288 223 309 160 260 260 271 215 289 153
9000
85 302 302 304 279 326 215 289 289 289 272 309 207 274 274 272 264 289 199
90 316 316 305 305 326 262 301 301 290 290 309 254 285 285 273 273 289 246
Ambient Temperature
115
Entering Wet Bulb
ENT
DB 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC
75 195 142 219 113 243 84
80 198 165 220 137 243 107
4000
85 201 188 222 160 244 130
90 207 207 222 183 244 153
75 217 176 239 134 259 89
80 221 210 240 168 260 123
6000
85 231 231 242 200 260 157
90 243 243 242 233 261 189
75 223 191 245 143 263 91
80 230 230 246 181 264 130
7000
85 242 242 247 219 264 169
90 254 254 248 248 264 205
75 228 206 249 153 266 93
80 238 238 250 194 266 138
8000
85 251 251 251 237 267 180
90 261 261 252 252 266 221
75 232 220 252 162 269 95
80 245 245 253 207 268 145
9000
85 257 257 254 254 268 190
90 266 266 254 254 267 237

52 RT-PRC036T-EN
 Performance Data

Table 16. Gross cooling capacities (MBh)— 25 ton air-cooled — standard capacity
Ambient Temperature
85 95 105
Entering Wet Bulb
ENT
DB 61 67 73 61 67 73 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
75 250 182 279 147 310 111 240 176 266 141 296 105 228 169 252 134 281 99
80 253 211 279 176 311 140 243 204 267 170 297 134 231 197 253 163 282 127
5000
85 257 240 282 205 311 168 246 233 270 198 297 162 234 226 257 191 281 155
90 264 264 284 232 311 197 255 255 272 226 297 191 245 245 258 219 282 184
75 273 216 302 169 329 117 260 209 288 162 314 111 246 201 272 155 296 104
80 278 256 303 207 330 157 266 249 290 200 315 150 252 241 274 193 298 143
7000
85 287 287 305 245 330 196 276 276 291 238 316 189 264 264 276 230 298 182
90 303 303 306 282 332 233 291 291 293 275 317 226 278 278 277 268 299 218
75 285 242 313 185 338 121 271 235 298 179 322 115 256 227 282 172 303 108
80 293 293 315 230 339 170 281 281 300 223 323 163 267 267 283 215 304 156
8750
85 309 309 316 277 340 216 297 297 302 269 323 208 282 282 285 261 305 200
90 324 324 317 317 340 260 311 311 303 303 323 253 295 295 286 286 304 245
75 291 260 319 197 343 124 277 252 303 190 326 118 261 244 286 179 307 111
80 304 304 320 246 343 179 291 291 305 239 326 172 277 277 288 231 307 165
10000
85 320 320 322 299 343 229 307 307 306 291 326 221 291 291 289 283 307 213
90 334 334 322 322 344 280 319 319 307 307 326 272 302 302 290 290 306 264
75 295 273 322 205 346 126 281 266 307 195 329 120 265 258 289 186 309 113
80 311 311 324 258 345 186 298 298 308 251 328 180 283 283 291 243 309 173
11000
85 327 327 325 316 346 240 313 313 309 308 328 232 297 297 292 292 308 223
90 340 340 325 325 347 296 324 324 310 310 328 288 306 306 292 292 308 279
Ambient Temperature
115
Entering Wet Bulb
ENT
DB 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC
75 215 162 238 127 264 91
80 218 190 238 156 265 120
5000
85 222 219 242 184 265 148
90 233 233 244 211 267 177
75 232 193 256 148 277 97
80 238 233 257 185 278 136
7000
85 251 251 259 222 279 173
90 264 264 260 259 280 209
75 241 218 264 164 283 101
80 253 253 266 207 284 149
8750
85 267 267 267 253 284 192
90 278 278 268 268 283 236
75 245 235 268 171 287 103
80 261 261 269 222 287 158
10000
85 274 274 270 270 286 204
90 283 283 271 271 285 254
75 248 248 270 178 289 106
80 267 267 272 234 289 167
11000
85 279 279 272 272 286 214
90 286 286 273 273 286 270

RT-PRC036T-EN 53
Performance Data

Table 17. Gross cooling capacities (MBh)—25 ton air-cooled — high efficiency
Ambient Temperature
85 95 105
Entering Wet Bulb
ENT
DB 61 67 73 61 67 73 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
75 266 191 296 156 331 120 255 184 284 149 317 114 242 177 271 143 301 106
80 269 220 297 185 332 149 257 213 284 178 318 143 245 206 270 171 302 135
5000
85 272 249 300 214 332 178 261 242 287 208 320 172 249 235 273 200 302 164
90 277 277 301 242 332 206 268 268 289 235 318 200 257 257 275 228 302 193
75 291 225 323 178 356 127 278 218 309 171 339 120 264 210 292 164 321 113
80 296 266 325 218 357 167 283 259 310 211 341 160 269 251 294 203 323 153
7000
85 304 304 327 256 356 207 292 292 312 248 340 200 280 280 296 240 321 192
90 320 320 328 294 360 245 309 309 314 287 344 238 295 295 298 278 325 230
75 305 253 337 196 368 132 291 245 321 189 350 125 275 237 303 181 330 117
80 313 304 339 242 370 181 300 296 323 234 352 174 284 284 306 226 332 167
8750
85 329 329 341 289 371 229 316 316 325 281 353 222 301 301 308 273 333 213
90 347 347 342 336 372 275 333 333 327 327 355 267 318 318 309 309 335 258
75 312 271 344 207 374 135 298 263 327 200 355 128 281 254 309 192 334 120
80 323 323 346 258 376 191 310 310 330 251 357 184 296 296 312 242 337 176
10000
85 342 342 348 312 377 243 329 329 332 304 359 235 313 313 313 295 338 227
90 360 360 349 349 378 295 345 345 333 333 360 287 329 329 315 315 339 278
75 317 285 348 217 377 137 302 277 331 210 359 130 285 268 313 202 337 122
80 332 332 351 271 379 199 319 319 334 263 361 192 303 303 315 254 340 184
11000
85 351 351 352 329 381 254 337 337 336 321 362 246 320 320 317 312 341 237
90 369 369 354 354 381 311 353 353 337 337 363 303 335 335 318 318 341 294
Ambient Temperature
115
Entering Wet Bulb
ENT
DB 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC
75 229 170 256 135 283 99
80 232 198 255 164 285 128
5000
85 236 227 259 192 284 156
90 246 246 260 220 285 185
75 248 202 275 156 300 105
80 254 242 277 194 302 145
7000
85 266 266 279 232 303 184
90 281 281 280 269 305 221
75 259 228 284 173 308 109
80 269 269 287 217 310 158
8750
85 285 285 289 263 311 204
90 300 300 290 290 312 249
75 264 245 289 184 312 112
80 279 279 292 232 314 168
10000
85 295 295 293 285 315 217
90 309 309 294 294 316 268
75 267 259 292 188 314 114
80 286 286 295 245 317 175
11000
85 302 302 296 296 317 227
90 315 315 297 297 318 284

54 RT-PRC036T-EN
 Performance Data

Table 18. Gross cooling capacities (MBh)— 30 ton air-cooled —standard capacity
Ambient Temperature
85 95 105
Entering Wet Bulb
ENT
DB 61 67 73 61 67 73 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
75 303 221 339 180 373 135 290 214 324 173 356 129 273 206 306 165 336 121
80 307 256 339 214 374 170 293 248 323 206 357 163 278 240 305 198 338 155
6000
85 310 290 342 248 374 204 296 282 326 240 358 196 281 274 309 232 339 188
90 317 317 343 280 374 237 306 306 328 272 357 230 293 293 311 264 338 222
75 334 268 367 209 396 143 318 260 350 201 376 136 300 250 330 193 355 128
80 339 321 368 256 396 192 324 313 351 248 377 185 306 304 331 239 356 177
9000
85 351 351 370 303 397 240 337 337 353 294 378 233 321 321 333 285 357 225
90 368 368 371 349 398 286 353 353 354 341 379 278 336 336 334 332 357 269
75 344 289 375 221 402 146 327 280 357 214 382 139 308 270 336 205 360 131
80 348 348 376 274 403 202 334 334 358 266 383 195 317 317 338 256 361 187
10500
85 367 367 378 328 404 258 352 352 360 319 383 251 334 334 339 310 361 242
90 383 383 379 379 405 308 367 367 361 361 384 300 349 349 340 340 361 290
75 351 308 381 233 407 149 333 299 362 226 387 142 314 290 341 217 364 134
80 361 361 382 291 408 212 346 346 364 283 386 205 328 328 343 273 364 197
12000
85 379 379 383 352 409 275 363 363 365 343 387 267 344 344 344 333 364 253
90 393 393 384 384 410 330 376 376 365 365 388 321 357 357 344 344 364 311
75 356 327 385 245 411 152 338 318 366 237 390 145 318 308 345 229 367 137
80 371 371 386 308 412 222 355 355 368 299 390 214 336 336 346 289 366 206
13500
85 388 388 387 375 413 292 371 371 368 366 391 280 351 351 347 347 366 267
90 404 404 387 387 415 352 384 384 369 369 391 343 363 363 347 347 366 332
Ambient Temperature
115
Entering Wet Bulb
ENT
DB 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC
75 260 198 289 157 316 113
80 263 232 288 190 317 147
6000
85 267 266 291 223 319 180
90 280 280 293 255 318 213
75 282 241 309 184 332 120
80 288 288 311 229 333 168
9000
85 304 304 312 275 334 217
90 318 318 314 314 334 259
75 289 261 315 196 337 123
80 300 300 316 246 337 178
10500
85 316 316 318 300 337 229
90 329 329 319 319 337 280
75 294 280 319 208 340 126
80 310 310 321 263 340 188
12000
85 324 324 321 321 340 243
90 335 335 322 322 339 301
75 298 298 322 213 343 129
80 317 317 324 279 344 200
13500
85 330 330 324 324 341 256
90 340 340 325 325 341 322

RT-PRC036T-EN 55
Performance Data

Table 19. Gross cooling capacities (MBh)— 30 ton air-cooled — high efficiency
Ambient Temperature
85 95 105
Entering Wet Bulb
ENT
DB 61 67 73 61 67 73 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
75 320 231 358 190 398 146 306 224 343 182 380 138 292 216 325 174 360 130
80 324 267 359 224 399 181 310 259 343 216 381 173 294 250 324 208 361 164
6000
85 327 302 362 259 401 215 313 294 346 251 383 207 298 285 328 242 361 199
90 332 332 363 292 400 249 321 321 347 284 381 241 308 308 330 275 361 232
75 355 280 392 220 430 155 338 271 373 212 408 147 320 262 352 203 384 138
80 360 334 394 270 432 206 344 326 375 261 410 198 325 316 354 251 387 189
9000
85 370 370 396 317 434 256 356 356 377 308 413 248 339 339 356 298 389 239
90 390 390 398 365 435 303 375 375 379 356 414 294 357 357 358 346 391 285
75 366 302 402 234 439 159 348 293 383 225 416 151 328 282 360 216 391 142
80 373 366 404 289 441 217 353 353 384 279 419 209 336 336 363 269 395 200
10500
85 389 389 407 343 443 275 373 373 387 334 421 266 355 355 365 324 397 257
90 410 410 408 398 445 327 393 393 389 389 423 318 374 374 367 367 399 308
75 374 322 410 246 445 162 355 313 389 238 422 154 335 302 367 229 396 145
80 383 383 412 307 448 228 367 367 392 297 426 219 349 349 369 287 401 211
12000
85 405 405 415 369 450 293 388 388 394 359 428 284 369 369 371 349 403 276
90 426 426 416 416 452 350 408 408 396 396 429 341 388 388 373 373 405 331
75 380 342 416 259 451 166 361 332 395 250 427 157 340 321 371 241 400 148
80 395 395 419 324 454 238 378 378 398 315 431 230 359 359 374 304 406 221
13500
85 417 417 421 393 456 309 399 399 400 383 433 301 379 379 376 373 408 292
90 439 439 423 423 458 372 420 420 401 401 435 363 399 399 378 378 410 353
Ambient Temperature
115
Entering Wet Bulb
ENT
DB 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC
75 275 207 306 165 337 121
80 277 241 305 199 339 156
6000
85 282 276 309 233 339 190
90 294 294 311 265 339 223
75 300 251 330 194 359 129
80 306 305 332 240 363 180
9000
85 321 321 334 287 365 230
90 339 339 336 335 367 274
75 307 272 337 206 365 133
80 318 318 339 258 370 191
10500
85 336 336 341 313 372 248
90 354 354 343 343 374 298
75 313 291 342 219 370 136
80 329 329 345 276 375 201
12000
85 348 348 347 338 377 265
90 367 367 349 349 379 320
75 318 310 346 231 373 140
80 338 338 350 293 379 212
13500
85 358 358 352 352 381 275
90 376 376 353 353 383 342

56 RT-PRC036T-EN
 Performance Data

Table 20. Gross cooling capacities (MBh)— 40 ton air-cooled — standard capacity
Ambient Temperature
85 95 105
Entering Wet Bulb
ENT
DB 61 67 73 61 67 73 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
75 387 283 434 230 484 175 371 273 415 221 462 166 352 263 394 211 438 156
80 390 331 434 274 484 220 373 321 414 265 463 211 355 311 392 254 439 200
8000
85 389 374 436 317 485 263 374 363 417 307 465 254 357 350 397 297 439 244
90 403 403 439 366 488 307 390 390 420 356 466 298 374 374 399 345 442 287
75 419 327 466 259 514 185 400 317 444 249 489 175 379 306 420 239 462 165
80 423 396 467 316 516 244 400 384 446 306 492 234 384 375 422 294 465 223
11000
85 434 434 470 371 518 301 417 417 449 361 494 292 399 399 425 349 468 281
90 458 458 475 443 519 357 441 441 448 429 495 346 422 422 427 414 469 334
75 439 367 486 284 532 192 418 356 462 274 505 183 395 344 436 263 476 172
80 444 444 488 352 535 265 426 426 465 341 509 255 406 406 439 328 480 244
14000
85 470 470 491 420 537 335 452 452 468 408 512 325 431 431 442 396 483 314
90 496 496 496 496 539 401 477 477 476 476 513 389 455 455 455 455 485 377
75 449 391 495 300 540 197 427 380 471 289 513 187 403 367 444 278 482 176
80 461 461 498 374 544 277 443 443 474 362 517 267 421 421 447 350 487 256
16000
85 489 489 501 450 546 357 469 469 477 439 520 347 447 447 450 426 489 335
90 515 515 515 515 548 428 494 494 494 494 521 417 471 471 471 471 491 404
75 457 414 503 314 546 201 434 403 478 304 518 191 410 390 450 292 487 180
80 476 476 506 395 549 290 456 456 481 383 521 279 434 434 454 370 490 268
18000
85 504 504 509 479 553 377 483 483 484 467 526 367 460 460 457 450 495 351
90 531 531 531 531 555 454 509 509 509 509 528 443 484 484 483 483 496 430
Ambient Temperature
115
Entering Wet Bulb
ENT
DB 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC
75 332 252 371 200 412 145
80 335 300 370 244 413 190
8000
85 338 338 374 285 415 233
90 357 357 377 334 416 276
75 356 293 395 227 432 153
80 360 355 397 282 436 212
11000
85 379 379 400 336 438 269
90 401 401 401 401 440 321
75 371 331 409 251 444 160
80 385 385 412 315 448 232
14000
85 408 408 415 383 451 302
90 430 430 430 430 452 363
75 378 354 416 266 449 164
80 398 398 419 336 454 244
16000
85 422 422 422 412 456 323
90 444 444 444 444 458 390
75 384 376 421 280 453 168
80 410 410 425 356 456 256
18000
85 434 434 427 427 460 337
90 455 455 454 454 462 415

RT-PRC036T-EN 57
Performance Data

Table 21. Gross cooling capacities (MBh)— 40 ton air-cooled — high capacity
Ambient Temperature
85 95 105
Entering Wet Bulb
ENT
DB 61 67 73 61 67 73 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
75 409 295 459 242 510 185 392 286 440 233 487 176 374 275 418 222 462 165
80 413 344 458 286 510 231 396 334 439 276 488 221 377 323 417 266 463 210
8000
85 416 389 461 330 511 274 399 379 442 320 489 264 377 365 420 309 464 253
90 422 422 463 379 513 318 408 408 444 369 491 308 392 392 423 357 466 297
75 445 341 493 271 542 195 425 331 471 261 516 185 403 319 446 249 487 173
80 449 410 494 330 543 254 429 400 472 319 518 244 407 387 447 306 489 232
11000
85 455 455 497 385 545 312 439 439 475 373 519 301 420 420 450 361 491 290
90 480 480 501 456 545 369 462 462 479 445 520 357 442 442 449 430 492 344
75 467 381 514 296 560 202 445 370 490 285 532 192 421 357 463 274 500 180
80 471 463 516 365 562 275 449 449 492 353 534 264 428 428 465 341 503 252
14000
85 493 493 519 433 564 345 474 474 495 421 536 334 452 452 468 408 504 322
90 519 519 519 519 565 412 499 499 498 498 537 400 475 475 475 475 505 386
75 478 406 524 311 568 206 455 394 499 301 539 196 430 381 471 289 507 184
80 486 486 526 387 570 287 466 466 501 375 542 276 444 444 473 362 509 264
16000
85 513 513 529 463 572 366 492 492 504 451 543 355 468 468 476 438 510 343
90 538 538 538 538 573 439 516 516 516 516 544 426 491 491 490 490 511 412
75 486 429 532 326 575 211 463 417 506 315 545 200 437 404 477 303 511 188
80 501 501 534 408 577 299 480 480 508 395 546 288 457 457 479 382 513 276
18000
85 528 528 537 492 578 387 506 506 511 480 548 375 481 481 482 466 514 363
90 554 554 554 554 579 464 530 530 530 530 549 452 502 502 502 502 514 437
Ambient Temperature
115
Entering Wet Bulb
ENT
DB 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC
75 353 264 394 211 434 154
80 356 311 393 254 435 198
8000
85 358 351 397 297 437 241
90 375 375 399 345 438 285
75 379 306 419 238 454 161
80 384 375 420 293 456 219
11000
85 399 399 423 348 458 277
90 420 420 424 412 459 330
75 395 343 433 261 465 167
80 406 406 435 326 467 238
14000
85 428 428 438 394 468 308
90 448 448 448 448 469 370
75 403 367 440 276 470 171
80 420 420 442 347 472 250
16000
85 442 442 444 423 473 329
90 461 461 460 460 473 396
75 409 389 445 290 474 175
80 431 431 447 367 475 262
18000
85 452 452 449 444 476 343
90 469 469 469 469 476 421

58 RT-PRC036T-EN
 Performance Data

Table 22. Gross cooling capacities (MBh)— 40 ton air-cooled — high efficiency
Ambient Temperature
85 95 105
Entering Wet Bulb
ENT
DB 61 67 73 61 67 73 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
75 415 300 466 246 517 188 398 290 446 236 494 178 380 279 424 225 469 168
80 419 349 465 291 518 234 402 339 445 281 495 224 382 328 423 270 470 213
8000
85 422 395 468 335 518 278 405 385 448 325 497 268 382 370 426 313 470 257
90 428 428 470 385 521 323 414 414 451 374 498 313 398 398 429 363 473 301
75 451 347 501 275 550 198 431 336 478 265 524 187 409 323 452 253 494 176
80 455 416 501 335 551 258 436 406 479 323 525 247 413 393 454 311 496 236
11000
85 462 462 504 390 553 317 445 445 482 379 527 306 426 426 457 366 498 294
90 487 487 508 462 553 374 469 469 486 451 528 362 449 449 455 436 499 349
75 474 387 522 301 568 205 452 375 497 290 540 194 427 362 470 278 508 183
80 478 469 524 370 570 279 455 455 499 359 542 268 434 434 472 346 510 255
14000
85 501 501 527 439 572 350 481 481 502 427 544 339 459 459 475 414 512 327
90 527 527 526 526 573 418 506 506 506 506 545 405 482 482 482 482 513 391
75 485 412 532 316 576 209 462 400 506 305 547 199 436 386 478 293 514 187
80 493 493 534 393 579 291 473 473 509 380 550 280 450 450 480 367 516 268
16000
85 520 520 537 470 580 372 499 499 511 458 551 360 475 475 483 444 517 348
90 546 546 546 546 582 445 524 524 524 524 552 432 498 498 498 498 518 418
75 493 436 540 331 583 214 470 423 513 320 553 203 443 410 484 308 519 191
80 508 508 542 414 585 304 487 487 516 401 554 292 464 464 487 387 520 280
18000
85 536 536 545 499 587 392 514 514 518 487 556 381 488 488 489 473 522 368
90 562 562 562 562 588 471 538 538 538 538 557 458 509 509 509 509 522 443
Ambient Temperature
115
Entering Wet Bulb
ENT
DB 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC
75 359 267 400 214 440 156
80 362 316 399 258 442 201
8000
85 364 356 403 301 443 245
90 380 380 405 350 445 289
75 385 310 425 241 461 163
80 390 380 426 298 463 223
11000
85 405 405 429 353 465 281
90 426 426 430 419 466 335
75 401 349 440 265 472 170
80 412 412 442 331 474 242
14000
85 434 434 444 400 475 313
90 455 455 455 455 476 376
75 409 372 446 280 477 174
80 426 426 449 352 479 254
16000
85 448 448 451 429 480 334
90 467 467 467 467 480 402
75 415 395 452 294 481 178
80 437 437 454 372 482 266
18000
85 459 459 456 451 483 348
90 476 476 476 476 483 427

RT-PRC036T-EN 59
Performance Data

Table 23. Gross cooling capacities (MBh)— 40 ton air-cooled — eFlex™ variable speed compressor
Ambient Temperature
85 95 105
Entering Wet Bulb
ENT
DB 61 67 73 61 67 73 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
75 390 286 436 232 486 176 374 276 418 223 465 167 356 266 398 213 442 157
80 393 334 436 276 486 221 377 325 417 267 466 212 359 314 397 257 443 202
8000
85 397 380 439 320 487 265 381 370 421 310 467 256 362 355 401 300 443 246
90 407 407 441 369 490 309 393 393 423 360 469 300 378 378 404 349 446 290
75 421 330 468 261 516 185 403 320 447 251 492 176 383 309 424 241 466 166
80 426 400 469 319 518 245 403 387 448 308 494 236 385 374 426 297 469 225
11000
85 437 437 472 374 520 303 421 421 452 364 497 294 404 404 429 353 471 284
90 461 461 477 446 521 359 444 444 457 436 498 349 426 426 432 423 473 338
75 441 370 487 286 533 193 421 359 465 276 508 184 399 348 440 266 480 173
80 446 446 490 354 536 266 429 429 467 343 511 256 410 410 443 332 484 246
14000
85 473 473 493 423 539 338 455 455 470 412 514 328 435 435 446 400 487 317
90 498 498 498 498 540 403 479 479 479 479 516 393 459 459 458 458 489 381
75 451 394 497 301 542 198 430 383 473 291 515 188 407 371 448 281 487 178
80 464 464 499 376 545 279 446 446 476 365 520 269 425 425 451 353 491 259
16000
85 491 491 502 453 548 359 472 472 479 442 522 349 451 451 454 431 494 339
90 517 517 517 517 549 431 497 497 497 497 524 420 475 475 474 474 496 408
75 458 418 504 316 548 202 437 407 480 306 521 192 414 394 454 295 492 182
80 479 479 507 397 550 291 459 459 483 386 524 281 438 438 458 374 494 271
18000
85 506 506 510 483 555 380 486 486 486 472 528 370 463 463 460 454 499 354
90 533 533 533 533 556 458 511 511 511 511 530 447 487 487 487 487 501 434
Ambient Temperature
115
Entering Wet Bulb
ENT
DB 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC
75 338 256 377 203 417 147
80 341 304 375 247 419 192
8000
85 343 343 380 289 421 236
90 362 362 383 338 421 279
75 361 298 400 231 439 156
80 365 360 402 286 442 215
11000
85 385 385 405 341 444 273
90 406 406 406 406 445 326
75 376 335 415 255 451 163
80 390 390 418 320 455 235
14000
85 413 413 420 388 457 306
90 436 436 435 435 459 368
75 383 359 421 270 456 167
80 404 404 425 341 461 248
16000
85 428 428 427 417 463 327
90 449 449 449 449 464 395
75 389 381 427 284 460 171
80 415 415 430 361 463 260
18000
85 439 439 433 433 468 342
90 460 460 460 460 469 421

60 RT-PRC036T-EN
 Performance Data

Table 24. Gross cooling capacities (MBh)— 50 ton air-cooled —standard capacity
Ambient Temperature
85 95 105
Entering Wet Bulb
ENT
DB 61 67 73 61 67 73 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
75 487 360 542 290 602 218 465 348 517 279 576 207 441 335 492 266 546 194
80 492 419 541 347 604 276 470 407 517 336 578 265 445 393 490 323 548 252
10000
85 498 478 546 405 603 332 475 465 522 392 577 321 453 449 496 379 548 309
90 517 517 551 463 607 390 498 498 528 451 582 378 478 478 502 438 552 365
75 527 426 583 332 641 231 502 412 554 319 612 219 475 398 524 306 578 206
80 537 509 585 409 644 310 513 496 559 396 615 298 486 479 529 382 581 285
14000
85 559 559 588 484 644 388 538 538 562 471 614 376 514 514 532 457 582 363
90 590 590 600 568 648 463 568 568 575 556 619 451 543 543 545 536 585 436
75 548 478 605 364 676 247 522 464 576 352 629 228 493 450 544 339 593 215
80 568 568 608 456 664 337 545 545 580 443 632 325 520 520 548 428 596 312
17500
85 602 602 611 549 666 433 578 578 582 536 634 417 551 551 550 521 598 403
90 634 634 634 634 668 522 609 609 609 609 636 509 580 580 580 580 600 494
75 559 514 616 387 670 245 532 500 586 372 637 233 502 485 553 358 600 220
80 590 590 619 488 673 356 566 566 590 475 641 344 538 538 557 460 604 330
20000
85 624 624 622 594 675 462 599 599 593 581 643 445 570 570 559 559 606 430
90 657 657 657 657 677 562 630 630 630 630 644 549 598 598 598 598 607 534
75 568 548 624 405 677 251 540 535 594 393 644 239 509 509 560 374 605 226
80 608 608 628 520 680 374 583 583 598 506 647 362 554 554 564 491 606 348
22500
85 643 643 630 630 682 486 616 616 600 600 649 473 585 585 566 566 611 457
90 674 674 674 674 683 602 645 645 645 645 650 589 611 611 611 611 612 573
Ambient Temperature
115
Entering Wet Bulb
ENT
DB 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC
75 416 321 464 253 513 181
80 420 379 463 310 516 239
10000
85 431 431 468 365 516 295
90 456 456 474 424 519 351
75 446 384 494 293 540 192
80 460 460 497 367 544 271
14000
85 488 488 500 442 545 347
90 515 515 515 515 548 421
75 462 434 509 324 553 201
80 491 491 513 412 557 297
17500
85 521 521 515 505 559 387
90 548 548 547 547 560 477
75 470 468 517 343 559 206
80 508 508 521 444 563 316
20000
85 538 538 523 523 565 414
90 563 563 562 562 566 517
75 477 477 524 358 564 212
80 522 522 527 474 564 334
22500
85 550 550 529 529 569 440
90 573 573 572 572 569 556

RT-PRC036T-EN 61
Performance Data

Table 25. Gross cooling capacities (MBh)— 50 ton air-cooled — high capacity
Ambient Temperature
85 95 105
Entering Wet Bulb
ENT
DB 61 67 73 61 67 73 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
75 519 378 580 308 645 235 496 365 555 295 617 223 473 352 528 282 585 209
80 525 437 580 365 646 293 502 424 554 353 618 281 476 410 526 339 586 267
10000
85 531 496 584 423 646 350 508 483 559 411 619 338 484 469 531 396 587 324
90 545 545 589 482 650 408 526 526 564 469 622 395 504 504 535 454 590 381
75 566 446 626 350 689 248 540 432 597 337 656 235 511 417 564 323 619 221
80 576 529 630 429 691 328 547 512 601 415 658 315 518 499 568 400 622 300
14000
85 593 593 633 505 691 406 571 571 604 491 659 393 545 545 571 475 622 379
90 625 625 643 588 694 483 602 602 615 574 662 468 575 575 583 559 625 453
75 591 499 652 384 710 257 563 485 621 370 675 244 532 469 586 355 636 229
80 606 599 655 477 712 354 581 581 624 462 678 341 553 553 589 446 638 326
17500
85 640 640 658 570 714 451 614 614 626 556 679 437 585 585 592 539 640 422
90 673 673 674 668 716 541 646 646 646 646 678 531 615 615 615 615 641 510
75 604 535 664 406 720 262 575 521 632 392 684 249 543 504 596 377 644 235
80 629 629 667 509 723 373 603 603 635 494 687 359 574 574 599 478 646 345
20000
85 665 665 670 615 724 480 637 637 638 600 688 466 606 606 601 584 648 447
90 698 698 698 698 726 581 668 668 668 668 689 567 635 635 634 634 648 550
75 614 571 674 427 728 268 584 556 640 411 691 254 551 539 603 396 650 240
80 649 649 677 541 730 391 622 622 644 526 694 377 590 590 607 509 652 362
22500
85 685 685 679 659 732 509 655 655 646 642 695 490 622 622 609 609 653 473
90 717 717 716 716 733 621 685 685 685 685 695 606 648 648 648 648 653 589
Ambient Temperature
115
Entering Wet Bulb
ENT
DB 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC
75 446 338 497 268 549 195
80 451 395 496 325 551 252
10000
85 455 449 501 381 552 309
90 482 482 507 439 554 366
75 481 401 531 308 579 206
80 492 484 534 383 581 285
14000
85 518 518 536 459 581 363
90 546 546 547 538 585 435
75 499 452 548 340 592 214
80 523 523 551 429 595 310
17500
85 553 553 554 522 596 404
90 580 580 580 580 597 492
75 508 487 557 359 599 219
80 542 542 560 460 601 328
20000
85 571 571 562 562 602 428
90 596 596 595 595 603 531
75 515 515 563 379 604 224
80 556 556 566 491 605 347
22500
85 584 584 568 568 606 455
90 606 606 606 606 606 570

62 RT-PRC036T-EN
 Performance Data

Table 26. Gross cooling capacities (MBh)— 50 ton air-cooled — high efficiency
Ambient Temperature
85 95 105
Entering Wet Bulb
ENT
DB 61 67 73 61 67 73 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
75 519 378 580 308 645 235 496 365 555 295 617 223 471 351 528 282 585 209
80 525 437 580 365 647 293 502 424 554 353 618 281 478 410 526 339 586 267
10000
85 531 496 584 423 646 350 508 483 559 411 619 338 484 469 531 397 586 324
90 545 545 589 482 650 408 526 526 564 469 622 395 504 504 536 454 590 381
75 566 446 626 350 689 248 540 432 597 337 656 235 511 417 564 323 620 221
80 576 529 630 429 691 328 550 516 601 415 659 315 518 499 569 400 622 300
14000
85 593 593 633 505 692 406 571 571 604 491 659 393 546 546 572 475 622 379
90 625 625 643 588 695 483 602 602 615 574 663 469 575 575 583 559 626 453
75 591 499 652 384 711 257 563 485 621 370 676 244 532 469 586 355 636 229
80 606 599 655 477 713 355 581 581 624 462 678 341 553 553 589 446 639 327
17500
85 640 640 658 570 715 451 614 614 627 556 680 438 585 585 592 540 641 419
90 673 673 674 668 717 541 646 646 646 646 682 527 615 615 615 615 642 510
75 604 535 664 406 721 263 575 521 632 392 685 249 543 504 596 377 644 235
80 629 629 668 509 723 373 604 604 635 495 688 360 574 574 599 478 647 345
20000
85 665 665 670 615 725 481 638 638 638 600 689 466 606 606 602 584 648 447
90 698 698 698 698 727 582 669 669 669 669 690 567 635 635 635 635 649 550
75 614 571 674 428 729 268 585 555 641 412 692 255 551 539 604 396 650 240
80 649 649 677 541 731 391 622 622 644 526 695 378 591 591 607 509 653 363
22500
85 685 685 680 659 733 510 656 656 647 643 696 491 623 623 609 609 654 474
90 717 717 717 717 734 621 686 686 686 686 697 606 649 649 649 649 654 589
Ambient Temperature
115
Entering Wet Bulb
ENT
DB 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC
75 446 338 498 268 550 195
80 450 395 496 325 551 253
10000
85 459 455 501 381 552 309
90 482 482 507 439 555 366
75 481 401 531 308 579 206
80 492 484 534 384 582 285
14000
85 518 518 537 459 582 363
90 546 546 547 538 585 436
75 499 452 548 340 593 214
80 524 524 552 429 596 311
17500
85 553 553 554 522 597 402
90 581 581 580 580 598 492
75 508 487 557 359 600 219
80 542 542 560 460 602 329
20000
85 571 571 562 562 603 429
90 597 597 596 596 604 532
75 516 516 564 379 605 225
80 557 557 567 491 606 347
22500
85 585 585 569 569 608 455
90 607 607 607 607 607 570

RT-PRC036T-EN 63
Performance Data

Table 27. Gross cooling capacities (MBh)— 50 ton air-cooled — eFlex™ variable speed compressor
Ambient Temperature
85 95 105
Entering Wet Bulb
ENT
DB 61 67 73 61 67 73 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
75 518 377 577 306 641 233 497 366 555 295 616 222 475 354 531 284 588 211
80 524 437 576 364 642 291 502 424 554 353 617 280 481 412 530 341 590 269
10000
85 529 495 581 422 643 349 509 483 559 410 618 338 484 472 535 398 590 326
90 543 543 585 480 646 406 526 526 564 469 621 395 507 507 540 456 594 383
75 563 444 624 349 686 247 540 432 598 337 657 235 515 419 570 325 625 223
80 572 528 625 427 688 327 550 515 600 415 659 315 522 501 572 402 628 303
14000
85 590 590 628 503 688 405 570 570 603 490 659 393 548 548 575 477 627 381
90 622 622 639 587 692 481 601 601 614 574 663 469 578 578 587 561 632 456
75 587 497 648 382 708 256 563 484 620 370 677 244 536 471 590 357 643 232
80 602 598 651 475 711 354 580 580 623 462 680 342 557 557 593 448 647 330
17500
85 636 636 653 568 713 451 614 614 626 555 682 439 589 589 596 541 649 425
90 670 670 671 667 715 541 646 646 646 646 685 528 620 620 620 620 651 514
75 600 533 660 404 719 262 574 520 631 392 687 250 547 506 600 378 652 238
80 626 626 663 507 723 373 603 603 635 494 691 361 577 577 604 480 656 348
20000
85 661 661 666 614 725 481 637 637 637 600 693 468 610 610 606 586 658 451
90 696 696 696 696 727 582 671 671 670 670 695 569 642 642 642 642 660 554
75 610 569 670 424 728 268 584 555 640 411 695 256 555 541 608 398 659 243
80 645 645 673 539 731 391 621 621 644 526 699 379 594 594 612 511 663 366
22500
85 682 682 675 658 734 510 656 656 646 642 701 493 628 628 614 614 665 478
90 717 717 717 717 735 622 690 690 690 690 703 609 659 659 659 659 667 594
Ambient Temperature
115
Entering Wet Bulb
ENT
DB 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC
75 452 341 504 271 559 198
80 459 400 504 328 560 256
10000
85 463 453 509 385 561 313
90 488 488 514 443 564 370
75 489 405 540 312 591 210
80 496 484 543 388 594 289
14000
85 525 525 545 463 593 367
90 553 553 556 541 598 441
75 508 456 558 343 607 218
80 531 531 561 433 610 316
17500
85 562 562 564 526 612 408
90 591 591 591 591 614 499
75 517 491 567 363 614 224
80 550 550 570 465 618 334
20000
85 581 581 573 570 620 435
90 610 610 610 610 622 539
75 525 525 574 383 620 230
80 565 565 578 496 623 353
22500
85 597 597 580 580 626 462
90 625 625 625 625 627 578

64 RT-PRC036T-EN
 Performance Data

Table 28. Gross cooling capacities (MBh)— 55 ton air-cooled — standard capacity
Ambient Temperature
85 95 105
Entering Wet Bulb
ENT
DB 61 67 73 61 67 73 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
75 538 388 603 318 671 245 516 376 577 306 641 232 490 361 549 292 607 218
80 545 448 603 376 672 303 522 435 577 363 642 290 495 420 547 349 609 276
10000
85 550 507 607 434 671 361 528 493 581 421 643 348 500 477 552 406 610 333
90 561 561 611 493 675 418 542 542 586 479 645 405 520 520 554 463 612 390
75 591 458 653 362 718 259 564 444 622 348 683 245 533 427 588 332 644 230
80 600 541 654 440 720 338 573 526 626 426 685 325 539 509 592 410 646 309
14000
85 613 613 659 517 720 417 590 590 629 502 686 403 564 564 595 485 647 387
90 646 646 669 600 723 494 622 622 639 585 689 479 594 594 605 568 650 462
75 618 512 681 395 741 267 589 496 648 381 704 253 556 480 611 365 662 238
80 630 616 683 489 743 365 603 596 650 474 706 351 573 573 614 457 664 335
17500
85 662 662 686 582 743 462 636 636 653 567 707 447 605 605 616 549 666 431
90 697 697 699 684 746 553 668 668 669 663 709 537 636 636 636 636 667 519
75 632 548 694 417 752 273 601 532 659 403 713 259 567 515 621 387 670 243
80 653 653 697 521 754 383 626 626 663 506 716 369 595 595 624 488 672 353
20000
85 689 689 699 627 755 491 660 660 665 611 717 476 627 627 627 594 674 459
90 723 723 723 723 757 593 692 692 692 692 718 577 657 657 656 656 675 559
75 643 583 704 439 760 278 611 567 669 424 721 264 576 550 629 406 677 249
80 674 674 707 553 762 401 645 645 672 537 723 387 612 612 632 519 679 371
22500
85 710 710 709 671 764 520 679 679 674 655 724 505 644 644 635 633 679 483
90 743 743 743 743 765 632 710 710 710 710 725 616 672 672 671 671 680 598
Ambient Temperature
115
Entering Wet Bulb
ENT
DB 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC
75 462 346 517 277 570 203
80 468 404 516 333 572 260
10000
85 476 463 521 390 572 317
90 496 496 525 448 576 374
75 501 411 551 316 601 214
80 512 494 555 393 604 293
14000
85 535 535 558 468 604 371
90 563 563 566 550 607 444
75 521 462 571 348 616 221
80 542 542 574 438 618 318
17500
85 572 572 576 531 619 413
90 599 599 599 599 621 500
75 531 497 580 370 623 227
80 561 561 583 470 625 336
20000
85 591 591 585 575 626 437
90 616 616 616 616 626 539
75 538 531 587 388 628 232
80 576 576 590 500 629 354
22500
85 605 605 592 592 630 463
90 627 627 627 627 630 578

RT-PRC036T-EN 65
Performance Data

Table 29. Gross cooling capacities (MBh)— 55 ton air-cooled — high efficiency
Ambient Temperature
85 95 105
Entering Wet Bulb
ENT
DB 61 67 73 61 67 73 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
75 542 390 608 321 675 247 520 378 581 308 646 234 494 364 553 293 612 220
80 549 450 607 378 676 306 526 437 581 365 647 292 500 422 551 350 613 278
10000
85 554 509 611 436 677 363 532 495 586 423 647 350 503 479 556 408 613 335
90 564 564 615 495 680 420 545 545 590 481 650 407 523 523 561 466 617 392
75 595 460 659 364 725 262 568 446 627 350 690 248 538 430 594 335 651 233
80 604 543 659 443 727 342 577 529 630 429 693 328 543 511 596 412 654 312
14000
85 617 617 664 519 727 420 594 594 634 504 693 406 567 567 599 487 654 390
90 650 650 674 602 731 497 625 625 644 587 697 483 598 598 610 571 659 466
75 623 514 686 397 750 271 593 499 653 383 713 257 560 482 616 367 671 241
80 638 620 689 492 753 369 607 599 656 476 716 355 577 577 619 459 675 339
17500
85 667 667 692 585 753 466 640 640 659 569 719 452 610 610 622 552 677 434
90 702 702 705 688 758 557 674 674 675 667 721 542 642 642 642 642 680 525
75 637 551 700 420 763 277 606 535 665 405 724 263 571 517 627 389 681 247
80 657 657 703 524 766 388 630 630 669 508 728 374 599 599 630 491 685 358
20000
85 694 694 706 630 768 497 666 666 672 614 730 479 633 633 633 597 688 465
90 730 730 730 730 771 599 700 700 700 700 733 583 666 666 666 666 690 565
75 648 586 710 442 772 283 616 570 675 427 733 269 580 552 635 408 688 253
80 679 679 714 556 776 406 650 650 679 540 737 392 617 617 639 522 693 376
22500
85 717 717 717 674 779 526 686 686 682 658 740 511 652 652 642 639 696 490
90 754 754 753 753 781 639 722 722 721 721 742 623 685 685 685 685 698 605
Ambient Temperature
115
Entering Wet Bulb
ENT
DB 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC
75 465 348 519 278 575 205
80 472 406 519 335 576 262
10000
85 468 463 524 392 578 319
90 499 499 528 449 580 376
75 504 412 554 318 609 216
80 515 495 559 395 612 296
14000
85 538 538 562 470 612 374
90 567 567 573 553 616 448
75 524 463 575 350 625 225
80 545 545 579 441 629 322
17500
85 576 576 582 533 632 418
90 606 606 606 606 634 506
75 534 498 585 372 634 231
80 565 565 589 472 638 341
20000
85 597 597 591 577 641 447
90 627 627 627 627 643 546
75 542 533 592 390 640 236
80 581 581 596 503 645 359
22500
85 613 613 599 599 648 470
90 644 644 644 644 650 586

66 RT-PRC036T-EN
 Performance Data

Table 30. Gross cooling capacities (MBh)— 55 ton air-cooled — eFlex™ variable speed compressor
Ambient Temperature
85 95 105
Entering Wet Bulb
ENT
DB 61 67 73 61 67 73 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
75 536 387 599 317 666 244 515 376 576 305 640 232 494 364 550 293 611 220
80 543 447 599 374 667 302 522 435 576 363 641 290 500 422 551 350 612 278
10000
85 545 505 604 433 667 359 528 493 581 421 641 347 501 478 556 408 613 335
90 559 559 607 491 670 416 542 542 585 479 644 404 523 523 560 466 616 392
75 587 456 650 360 714 257 563 443 623 348 683 245 537 430 593 334 650 232
80 596 539 651 439 716 337 572 526 625 426 686 325 539 513 595 412 652 311
14000
85 610 610 654 515 716 416 589 589 628 501 686 403 567 567 598 487 652 390
90 642 642 664 598 719 493 621 621 638 584 689 480 597 597 609 570 656 465
75 613 510 676 393 738 267 588 496 647 380 705 254 559 482 615 367 669 241
80 629 613 678 487 741 365 605 596 649 473 708 352 576 576 618 459 672 338
17500
85 658 658 681 580 742 461 635 635 652 566 710 448 609 609 620 551 674 434
90 693 693 699 682 745 552 668 668 668 668 712 538 641 641 640 640 676 523
75 627 546 689 415 750 272 600 532 658 401 716 260 571 517 625 387 678 246
80 648 648 692 520 753 383 624 624 662 506 719 371 598 598 629 490 682 357
20000
85 685 685 694 625 755 491 660 660 664 611 721 478 632 632 631 596 684 463
90 720 720 720 720 757 593 694 694 693 693 723 579 664 664 663 663 686 564
75 638 581 699 435 759 278 610 567 668 422 724 265 580 552 634 407 686 252
80 669 669 702 551 762 402 644 644 671 537 728 389 616 616 637 521 689 375
22500
85 707 707 705 669 764 520 680 680 674 653 730 507 650 650 640 630 691 492
90 742 742 742 742 766 633 714 714 714 714 731 619 682 682 682 682 692 603
Ambient Temperature
115
Entering Wet Bulb
ENT
DB 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC
75 471 351 524 280 580 207
80 477 409 524 337 581 264
10000
85 477 464 529 394 582 321
90 503 503 531 451 585 378
75 510 415 562 321 614 218
80 516 496 564 397 616 297
14000
85 542 542 567 472 616 375
90 571 571 569 552 620 450
75 530 466 581 352 630 226
80 550 550 584 443 633 324
17500
85 580 580 586 536 635 419
90 610 610 610 610 637 507
75 540 501 590 372 638 232
80 570 570 594 474 642 342
20000
85 601 601 596 580 643 447
90 630 630 630 630 645 547
75 548 535 598 392 644 237
80 586 586 601 505 648 360
22500
85 617 617 603 603 649 471
90 646 646 646 646 650 586

RT-PRC036T-EN 67
Performance Data

Table 31. Gross cooling capacities (MBh)— 60 ton air-cooled — standard capacity
Ambient Temperature
85 95 105
Entering Wet Bulb
ENT
DB 61 67 73 61 67 73 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
75 625 475 699 379 777 278 595 459 667 364 741 264 563 443 631 348 701 248
80 631 560 700 457 778 359 602 544 668 442 742 344 570 527 633 426 702 328
14000
85 637 637 702 536 780 437 613 613 670 521 744 422 586 586 634 504 704 406
90 672 672 708 621 781 515 648 648 676 605 746 500 620 620 641 589 706 484
75 660 538 734 417 811 290 628 522 699 401 773 276 592 504 660 385 729 260
80 671 651 734 516 812 390 639 628 700 500 774 376 604 604 661 483 731 359
18000
85 699 699 738 613 814 488 672 672 703 597 776 474 641 641 664 579 733 457
90 738 738 746 725 816 587 710 710 715 703 777 571 678 678 677 677 735 554
75 678 582 752 443 828 298 645 565 715 427 788 283 607 547 674 410 743 267
80 694 694 754 557 829 412 665 665 717 540 790 398 633 633 677 522 745 381
21000
85 735 735 757 667 831 525 705 705 720 650 792 510 672 672 679 632 747 494
90 776 776 775 775 833 636 745 745 745 745 794 620 711 711 710 710 749 603
75 692 624 766 468 841 305 657 607 728 452 800 290 619 588 686 435 754 274
80 721 721 769 594 842 433 691 691 731 578 802 419 657 657 688 560 756 402
24000
85 764 764 771 719 844 560 733 733 733 702 804 545 697 697 691 684 758 529
90 806 806 806 806 846 683 774 774 773 773 806 668 737 737 737 737 760 650
75 703 664 778 492 850 311 668 647 739 476 809 297 628 628 695 459 762 281
80 744 744 780 631 852 453 713 713 741 614 810 439 677 677 698 596 763 422
27000
85 788 788 782 769 854 594 755 755 744 744 813 580 718 718 701 701 766 563
90 830 830 830 830 855 729 797 797 796 796 815 714 758 758 758 758 768 696
Ambient Temperature
115
Entering Wet Bulb
ENT
DB 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC
75 536 429 596 332 659 232
80 542 513 596 410 660 312
14000
85 561 561 599 487 662 389
90 592 592 607 572 664 467
75 560 488 621 368 684 243
80 576 576 622 466 686 343
18000
85 610 610 625 561 688 440
90 644 644 644 644 690 536
75 572 530 633 394 696 250
80 602 602 636 504 698 364
21000
85 638 638 638 614 701 476
90 674 674 674 674 703 585
75 582 571 643 418 706 257
80 623 623 646 541 708 385
24000
85 660 660 648 648 710 512
90 698 698 697 697 712 632
75 590 590 651 442 713 264
80 640 640 653 577 714 405
27000
85 679 679 656 656 717 546
90 717 717 716 716 719 678

68 RT-PRC036T-EN
 Performance Data

Table 32. Gross cooling capacities (MBh)— 60 ton air-cooled — high capacity
Ambient Temperature
85 95 105
Entering Wet Bulb
ENT
DB 61 67 73 61 67 73 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
75 653 489 731 393 811 292 622 473 697 377 774 277 590 456 660 360 733 260
80 659 574 731 471 812 372 629 558 699 456 775 357 596 540 662 439 734 340
14000
85 668 657 734 550 814 450 635 635 701 535 777 435 608 608 664 517 736 418
90 696 696 738 635 815 528 670 670 706 619 779 513 642 642 670 602 738 496
75 691 553 769 431 848 303 658 537 732 415 808 288 621 518 691 397 763 272
80 701 665 769 530 849 404 666 647 733 514 809 388 633 623 692 496 765 371
18000
85 725 725 772 628 851 502 697 697 736 611 811 486 666 666 695 592 767 469
90 765 765 784 742 852 600 736 736 749 725 813 585 703 703 708 698 768 567
75 711 598 788 458 866 311 676 580 750 441 825 296 638 561 707 423 778 279
80 721 721 789 572 867 426 692 692 752 555 826 410 659 659 709 536 780 393
21000
85 763 763 793 682 869 538 733 733 755 665 828 523 698 698 712 646 782 506
90 805 805 805 805 870 650 773 773 773 773 830 634 738 738 737 737 784 616
75 726 640 803 483 879 318 690 622 764 466 837 303 650 603 720 448 789 286
80 751 751 805 610 880 447 719 719 766 593 839 431 684 684 722 574 791 414
24000
85 794 794 808 734 882 573 762 762 769 717 841 558 725 725 725 698 793 541
90 837 837 836 836 884 698 803 803 803 803 842 681 765 765 765 765 795 663
75 738 680 815 507 889 324 701 662 775 490 847 309 660 643 730 472 798 293
80 775 775 817 647 891 467 742 742 777 629 848 451 705 705 732 610 799 434
27000
85 820 820 820 785 892 607 786 786 780 767 850 592 747 747 735 735 802 575
90 862 862 862 862 894 744 827 827 827 827 852 727 788 788 787 787 804 709
Ambient Temperature
115
Entering Wet Bulb
ENT
DB 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC
75 561 441 624 344 690 244
80 567 525 626 423 691 323
14000
85 582 582 627 500 693 401
90 614 614 634 584 695 478
75 588 501 651 380 716 254
80 599 599 652 479 718 354
18000
85 634 634 655 574 720 452
90 669 669 669 669 721 548
75 601 544 664 406 729 262
80 627 627 666 517 731 376
21000
85 663 663 669 627 733 488
90 700 700 700 700 735 597
75 612 585 675 430 739 268
80 649 649 677 554 741 396
24000
85 687 687 680 678 743 523
90 725 725 725 725 745 644
75 621 621 684 454 747 275
80 667 667 686 590 748 416
27000
85 707 707 689 689 751 557
90 745 745 745 745 753 689

RT-PRC036T-EN 69
Performance Data

Table 33. Gross cooling capacities (MBh)— 60 ton air-cooled — high efficiency
Ambient Temperature
85 95 105
Entering Wet Bulb
ENT
DB 61 67 73 61 67 73 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
75 653 489 731 393 811 292 622 473 697 377 774 277 590 456 660 360 733 260
80 659 574 731 471 812 372 629 558 698 456 775 357 596 540 661 439 734 340
14000
85 668 657 734 550 814 450 635 635 701 535 777 435 608 608 664 517 736 418
90 696 696 738 635 815 528 670 670 706 619 779 513 642 642 670 602 738 496
75 691 553 769 431 848 303 658 537 732 415 808 288 621 518 691 397 763 271
80 701 665 770 531 849 404 666 647 733 514 809 388 633 623 692 497 765 371
18000
85 725 725 772 628 851 502 697 697 736 611 811 486 666 666 695 592 767 469
90 765 765 784 742 852 600 736 736 749 725 813 585 703 703 708 698 768 567
75 711 598 788 458 866 311 676 580 750 441 825 296 638 561 707 423 778 279
80 721 721 789 572 867 426 692 692 752 555 826 410 659 659 709 536 780 393
21000
85 763 763 793 682 869 538 733 733 754 665 828 523 698 698 712 646 782 506
90 805 805 805 805 870 650 773 773 773 773 830 634 738 738 737 737 784 616
75 726 640 803 483 879 318 690 622 764 466 837 303 650 603 720 448 789 286
80 751 751 805 610 880 447 719 719 766 593 839 431 684 684 722 574 791 414
24000
85 794 794 808 734 882 573 762 762 769 717 841 558 725 725 725 698 793 541
90 837 837 836 836 884 698 803 803 803 803 842 681 765 765 765 765 795 663
75 738 680 815 507 889 324 701 662 775 490 847 309 660 643 730 472 798 293
80 775 775 817 647 891 467 742 742 777 629 848 451 705 705 732 610 799 434
27000
85 820 820 820 785 892 607 786 786 780 767 850 592 747 747 735 735 802 575
90 862 862 862 862 894 744 827 827 827 827 852 727 788 788 787 787 804 709
Ambient Temperature
115
Entering Wet Bulb
ENT
DB 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC
75 561 441 624 344 690 244
80 567 525 626 423 691 323
14000
85 582 582 627 500 693 401
90 614 614 634 585 695 478
75 587 501 651 380 716 254
80 599 599 652 479 718 354
18000
85 634 634 655 574 720 452
90 669 669 669 669 721 548
75 601 544 664 406 729 262
80 627 627 666 517 731 376
21000
85 663 663 669 627 733 488
90 700 700 700 700 735 597
75 612 585 675 430 739 268
80 649 649 677 554 741 396
24000
85 687 687 680 678 743 523
90 725 725 725 725 745 644
75 621 621 683 454 747 275
80 668 667 686 590 748 416
27000
85 707 707 689 689 751 557
90 745 745 745 745 753 689

70 RT-PRC036T-EN
 Performance Data

Table 34. Gross cooling capacities (MBh)— 60 ton air-cooled — eFlex™ variable speed compressor
Ambient Temperature
85 95 105
Entering Wet Bulb
ENT
DB 61 67 73 61 67 73 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
75 653 489 728 392 808 291 627 475 699 378 775 277 600 461 668 364 740 263
80 658 574 729 471 809 371 632 560 699 457 776 357 605 545 669 443 741 343
14000
85 666 648 731 549 810 449 642 632 702 535 778 435 616 616 672 521 743 421
90 694 694 736 634 812 527 672 672 707 620 779 513 649 649 677 605 744 499
75 689 553 765 430 844 302 661 538 733 415 809 289 631 523 699 401 770 274
80 695 662 766 529 845 403 669 644 734 515 810 389 641 626 701 500 772 374
18000
85 723 723 769 627 847 501 698 698 737 611 812 487 672 672 703 596 774 472
90 763 763 781 740 848 599 736 736 750 726 813 585 709 709 716 698 775 569
75 709 597 785 456 862 310 678 581 751 442 826 296 647 566 715 427 786 282
80 725 712 786 570 864 425 693 693 752 555 827 411 666 666 717 540 787 396
21000
85 761 761 789 681 866 537 733 733 755 665 829 523 705 705 720 649 789 508
90 802 802 808 795 867 649 774 774 774 774 831 635 744 744 743 743 791 619
75 724 638 800 481 876 317 692 623 764 467 838 303 660 607 728 452 797 289
80 748 748 801 608 877 446 720 720 766 593 840 432 691 691 730 577 799 417
24000
85 791 791 804 733 879 573 762 762 769 717 842 559 732 732 732 701 801 544
90 834 834 833 833 881 697 804 804 804 804 844 682 772 772 771 771 803 666
75 735 679 811 505 887 324 703 663 775 491 848 310 669 647 738 475 806 295
80 772 772 813 645 888 466 743 743 778 629 850 452 712 712 740 613 808 437
27000
85 817 817 816 783 890 607 786 786 780 766 852 593 754 754 742 741 811 578
90 860 860 859 859 892 743 829 829 828 828 854 728 795 795 794 794 813 712
Ambient Temperature
115
Entering Wet Bulb
ENT
DB 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC
75 578 450 641 351 707 250
80 583 533 642 430 708 330
14000
85 596 596 644 508 709 407
90 628 628 648 591 711 485
75 606 510 668 387 734 261
80 617 611 669 486 735 360
18000
85 648 648 671 581 737 458
90 682 682 682 682 738 555
75 620 552 682 413 747 268
80 641 641 684 525 749 382
21000
85 677 677 686 634 751 494
90 714 714 714 714 752 603
75 630 593 693 437 758 275
80 664 664 695 562 759 403
24000
85 702 702 697 686 761 529
90 739 739 739 739 763 650
75 639 632 702 461 766 281
80 683 683 704 598 767 423
27000
85 722 722 706 706 769 563
90 760 760 759 759 770 696

RT-PRC036T-EN 71
Performance Data

Table 35. Gross cooling capacities (MBh)— 70 ton air-cooled — standard capacity
Ambient Temperature
85 95 105
ENT Entering Wet Bulb
DB 61 67 73 61 67 73 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
75 758 573 845 457 933 336 723 555 805 439 890 319 686 536 762 420 842 300
80 766 675 846 551 934 431 731 657 808 533 891 413 694 637 765 514 843 394
16000
85 776 765 849 645 936 524 742 742 810 626 893 506 710 710 766 605 846 487
90 812 812 855 747 938 616 782 782 817 728 895 598 748 748 775 708 848 579
75 795 638 881 496 966 347 757 619 839 478 921 330 716 598 792 458 870 311
80 808 770 882 611 968 463 766 745 838 592 922 445 729 719 792 572 872 426
20000
85 835 835 886 723 970 576 802 802 843 703 924 558 766 766 797 682 874 539
90 880 880 900 856 972 689 845 845 853 830 926 671 808 808 807 807 875 651
75 809 668 895 514 979 352 770 649 851 496 932 334 727 627 803 475 880 316
80 822 806 895 639 980 477 782 782 853 620 933 460 745 745 805 599 882 441
22000
85 861 861 900 759 982 600 827 827 856 740 936 583 788 788 809 718 884 563
90 907 907 913 897 983 723 871 871 871 871 937 705 831 831 831 831 886 684
75 821 698 906 532 989 356 780 678 861 513 941 339 736 656 813 493 888 320
80 837 837 908 666 990 492 802 802 863 646 943 474 764 764 815 625 890 455
24000
85 884 884 911 795 992 625 848 848 867 776 945 607 808 808 818 754 892 588
90 930 930 930 930 993 756 893 893 892 892 946 737 851 851 851 851 894 716
75 831 726 916 549 997 361 789 706 870 530 949 344 745 684 821 510 895 325
80 856 856 918 692 998 506 820 820 873 672 951 488 780 780 823 650 897 469
26000
85 904 904 921 831 1000 648 867 867 876 811 952 631 826 826 827 789 899 611
90 950 950 950 950 1002 788 912 912 911 911 954 769 869 869 868 868 901 748
75 836 740 920 557 1001 363 794 720 874 538 952 346 748 698 824 518 898 327
80 865 865 922 704 1002 513 828 828 877 684 954 495 788 788 827 663 900 476
27000
85 913 913 925 848 1004 660 875 875 880 828 956 643 833 833 830 806 902 623
90 960 960 959 959 1005 803 920 920 920 920 957 785 877 877 876 876 904 764
Ambient Temperature
ENT 115
CFM DB Entering Wet Bulb
(F) 61 67 73
CAP SHC CAP SHC CAP SHC
75 651 518 720 401 792 281
80 659 619 720 494 794 375
16000
85 679 679 724 585 796 467
90 715 715 733 687 798 559
75 676 578 745 438 817 292
80 690 690 747 551 819 406
20000
85 729 729 750 660 821 519
90 768 768 768 768 823 629
75 686 607 755 455 826 296
80 709 709 757 577 828 421
22000
85 749 749 760 697 830 543
90 789 789 789 789 832 662
75 694 635 763 473 833 301
80 725 725 766 603 835 435
24000
85 767 767 769 732 837 568
90 807 807 807 807 839 695
75 701 663 770 489 839 306
80 740 740 773 628 841 449
26000
85 782 782 776 767 843 591
90 823 823 823 823 845 726
75 704 676 773 498 842 308
80 747 747 776 641 844 456
27000
85 790 790 779 778 846 603
90 830 830 830 830 848 742

72 RT-PRC036T-EN
 Performance Data

Table 36. Gross cooling capacities (MBh)— 70 ton air-cooled — high efficiency
Ambient Temperature
85 95 105
ENT Entering Wet Bulb
DB 61 67 73 61 67 73 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
75 755 572 839 454 923 332 721 554 800 437 882 315 684 535 759 418 837 298
80 763 674 839 548 924 426 729 656 803 531 883 410 691 636 759 511 838 392
16000
85 773 763 843 642 926 519 740 740 804 623 885 503 708 708 763 604 840 485
90 808 808 849 744 927 612 778 778 811 725 887 595 745 745 771 706 842 577
75 791 636 873 492 956 342 754 617 832 474 912 326 712 596 788 456 864 308
80 804 767 873 607 957 458 768 749 832 589 914 442 725 716 788 570 866 423
20000
85 831 831 877 719 959 571 798 798 836 700 916 555 763 763 793 680 868 536
90 873 873 891 852 960 685 840 840 847 826 917 668 804 804 803 803 869 648
75 805 666 886 510 967 347 766 647 844 492 923 331 723 625 799 474 874 313
80 817 802 886 635 969 473 778 778 845 617 925 456 742 742 801 597 875 438
22000
85 855 855 890 755 971 596 821 821 849 736 927 579 785 785 804 716 877 561
90 899 899 905 891 972 719 864 864 864 864 928 701 827 827 826 826 879 681
75 816 695 897 528 977 352 776 675 854 510 932 336 732 654 808 491 882 318
80 832 832 898 662 979 488 798 798 856 643 934 471 761 761 810 623 883 452
24000
85 877 877 901 791 981 620 842 842 859 772 936 604 804 804 814 752 885 585
90 921 921 921 921 982 751 886 886 885 885 937 733 846 846 846 846 887 713
75 825 723 906 544 986 357 785 703 863 527 940 340 740 682 816 508 888 322
80 850 850 908 687 987 502 815 815 865 668 941 485 777 777 818 648 890 467
26000
85 896 896 910 826 989 644 860 860 868 807 943 627 821 821 821 787 892 609
90 941 941 941 941 990 783 904 904 904 904 944 765 863 863 863 863 893 745
75 830 737 910 553 989 359 789 717 867 535 943 343 744 696 820 516 891 325
80 859 859 912 700 991 509 823 823 869 681 945 492 784 784 822 660 893 473
27000
85 905 905 915 843 992 656 869 869 872 824 946 639 829 829 825 804 895 620
90 950 950 950 950 994 799 913 913 912 912 948 781 871 871 870 870 896 761
Ambient Temperature
ENT 115
CFM DB Entering Wet Bulb
(F) 61 67 73
CAP SHC CAP SHC CAP SHC
75 643 514 716 399 788 279
80 652 615 715 492 790 373
16000
85 675 675 720 584 792 466
90 712 712 730 686 794 558
75 670 575 742 436 812 290
80 686 686 744 550 814 404
20000
85 726 726 747 659 816 517
90 765 765 765 765 817 627
75 680 604 751 454 820 294
80 705 705 754 576 822 419
22000
85 746 746 757 695 824 541
90 785 785 785 785 825 660
75 689 633 760 471 827 299
80 722 722 762 602 829 433
24000
85 764 764 765 730 831 565
90 803 803 803 803 832 692
75 696 660 766 488 833 303
80 737 737 769 627 835 447
26000
85 779 779 772 765 836 589
90 818 818 817 817 838 724
75 699 674 770 496 836 306
80 744 744 772 639 837 454
27000
85 786 786 775 774 839 601
90 824 824 824 824 840 739

RT-PRC036T-EN 73
Performance Data

Table 37. Gross cooling capacities (MBh)— 70 ton air-cooled — eFlex™ variable speed compressor
Ambient Temperature
85 95 105
ENT Entering Wet Bulb
DB 61 67 73 61 67 73 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
75 762 575 846 459 933 337 732 559 812 443 895 322 701 543 777 427 855 306
80 769 679 847 552 934 432 739 662 812 536 897 416 708 646 778 520 857 400
16000
85 782 752 851 645 936 525 754 733 816 629 899 509 726 714 781 612 859 493
90 814 814 857 749 938 617 787 787 823 732 901 602 760 760 788 715 860 585
75 797 640 882 497 967 348 765 623 845 481 927 333 732 606 807 464 884 316
80 808 756 884 612 969 464 777 735 847 595 928 448 746 714 808 578 886 432
20000
85 837 837 887 724 971 577 808 808 850 707 931 561 778 778 811 689 888 544
90 881 881 898 838 973 689 851 851 865 816 932 673 819 819 829 794 890 656
75 812 671 896 515 980 353 777 653 857 499 938 337 743 636 818 482 894 321
80 828 789 897 639 981 479 796 767 859 622 940 463 764 746 819 605 896 446
22000
85 863 863 900 761 983 602 833 833 862 743 942 586 801 801 823 725 899 569
90 908 908 920 876 985 723 876 876 885 854 944 707 843 843 849 831 901 690
75 823 700 907 533 990 358 788 682 868 516 947 342 752 664 827 499 903 326
80 846 821 908 666 991 493 814 800 869 649 949 477 777 777 828 631 905 461
24000
85 886 886 912 797 994 626 854 854 873 779 952 610 820 820 832 761 907 593
90 931 931 939 913 995 757 899 899 898 898 953 740 864 864 863 863 909 723
75 833 728 916 550 998 362 797 710 877 533 955 347 760 692 835 516 910 331
80 858 858 918 692 1000 507 826 826 879 675 957 491 793 793 838 657 912 475
26000
85 905 905 922 832 1002 650 873 873 882 814 960 634 838 838 841 795 915 617
90 952 952 952 952 1004 789 918 918 918 918 962 772 882 882 881 881 917 755
Ambient Temperature
ENT 115
CFM DB Entering Wet Bulb
(F) 61 67 73
CAP SHC CAP SHC CAP SHC
75 677 531 746 413 818 291
80 679 630 746 506 819 385
16000
85 701 701 750 597 821 477
90 736 736 757 700 822 569
75 704 592 772 449 843 301
80 719 696 773 562 844 416
20000
85 751 751 776 672 846 528
90 789 789 796 773 848 639
75 713 621 782 467 852 306
80 735 728 783 589 853 430
22000
85 771 771 786 708 855 553
90 811 811 810 810 857 673
75 722 649 790 484 859 310
80 749 749 792 615 861 445
24000
85 789 789 795 744 863 577
90 829 829 829 829 865 705
75 729 676 797 500 866 315
80 763 763 799 640 867 459
26000
85 805 805 802 773 869 601
90 845 845 845 845 871 737

74 RT-PRC036T-EN
 Performance Data

Table 38. Gross cooling capacities (MBh)— 75 ton air-cooled — standard capacity
Ambient Temperature
85 95 105
ENT Entering Wet Bulb
DB 61 67 73 61 67 73 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
75 827 610 919 492 1012 366 790 590 878 472 966 348 753 571 835 452 917 328
80 833 714 920 586 1013 463 797 694 879 567 967 444 761 675 836 547 918 424
16000
85 844 814 924 681 1014 557 805 788 883 662 969 538 771 764 839 641 920 517
90 870 870 928 786 1016 651 840 840 888 766 971 631 807 807 846 745 922 611
75 868 678 961 531 1047 376 829 658 916 511 998 357 788 637 869 491 945 337
80 880 810 962 648 1048 494 841 789 916 627 999 475 801 769 870 607 946 454
20000
85 899 899 964 762 1050 608 865 865 920 741 1001 589 828 828 873 719 948 568
90 945 945 977 896 1052 723 909 909 934 876 1003 703 871 871 888 854 950 683
75 884 709 976 550 1059 381 843 688 930 530 1009 362 801 667 881 509 955 342
80 900 857 976 676 1060 508 853 830 930 656 1010 489 815 802 882 635 956 468
22000
85 928 928 980 800 1062 633 892 892 934 778 1012 613 853 853 886 756 957 592
90 975 975 996 950 1064 758 937 937 946 921 1013 738 896 896 896 896 959 716
75 898 739 988 567 1069 385 855 717 941 547 1017 366 812 696 891 526 962 346
80 911 892 989 704 1070 522 868 868 942 684 1019 503 829 829 893 662 963 482
24000
85 953 953 993 836 1072 656 915 915 946 815 1020 637 875 875 896 792 965 616
90 1000 1000 1007 989 1073 791 960 960 960 960 1021 770 918 918 917 917 966 748
75 910 768 999 584 1077 389 866 746 951 564 1024 370 821 724 900 543 968 350
80 925 925 1001 731 1078 536 887 887 953 710 1026 516 847 847 902 687 969 496
26000
85 975 975 1004 871 1079 680 936 936 956 850 1027 660 893 893 905 827 970 639
90 1022 1022 1021 1021 1081 823 980 980 980 980 1028 802 935 935 935 935 972 779
75 915 782 1004 593 1080 391 871 760 955 572 1028 372 825 738 904 551 971 352
80 935 935 1005 744 1081 542 897 897 957 722 1029 523 856 856 906 700 972 502
27000
85 985 985 1008 889 1083 691 945 945 960 867 1030 671 902 902 909 844 973 651
90 1031 1031 1031 1031 1084 838 989 989 989 989 1031 817 943 943 942 942 974 795
Ambient Temperature
ENT 115
CFM DB Entering Wet Bulb
(F) 61 67 73
CAP SHC CAP SHC CAP SHC
75 727 558 796 435 868 309
80 733 660 798 529 869 404
16000
85 743 743 800 623 871 497
90 778 778 806 725 873 591
75 755 620 823 471 891 318
80 763 745 823 587 893 434
20000
85 795 795 827 698 894 547
90 833 833 839 823 896 661
75 765 649 834 489 899 322
80 777 777 835 614 901 448
22000
85 815 815 839 735 902 571
90 855 855 855 855 903 694
75 774 677 843 506 906 326
80 794 794 845 640 907 461
24000
85 835 835 848 770 908 595
90 874 874 873 873 909 725
75 782 705 850 522 911 329
80 809 809 852 665 912 475
26000
85 851 851 855 805 912 618
90 888 888 888 888 913 756
75 785 718 854 531 913 331
80 816 816 856 678 914 481
27000
85 858 858 858 822 914 629
90 895 895 894 894 915 772

RT-PRC036T-EN 75
Performance Data

Table 39. Gross cooling capacities (MBh)— 75 ton air-cooled — high capacity
Ambient Temperature
85 95 105
ENT Entering Wet Bulb
DB 61 67 73 61 67 73 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
75 852 624 946 504 1041 378 814 604 904 484 994 358 776 584 860 464 944 338
80 857 729 948 600 1042 475 821 708 905 580 995 455 784 688 862 560 945 435
16000
85 868 829 951 696 1044 570 826 805 909 675 997 550 793 780 865 654 947 529
90 892 892 955 801 1046 664 861 861 914 780 999 644 828 828 870 759 949 623
75 894 692 990 544 1078 388 855 672 944 524 1028 368 813 651 895 503 973 348
80 906 825 990 661 1080 506 866 804 945 641 1029 486 826 783 896 619 975 465
20000
85 922 922 993 777 1081 621 887 887 948 756 1031 601 850 850 900 733 976 580
90 969 969 1005 912 1083 737 933 933 961 891 1032 717 894 894 914 868 978 695
75 912 724 1005 563 1091 392 869 703 958 542 1039 372 826 681 908 521 983 352
80 927 873 1006 690 1092 521 877 849 959 670 1040 501 838 820 909 648 985 479
22000
85 952 952 1010 815 1094 646 915 915 963 793 1042 626 876 876 913 770 986 604
90 1000 1000 1025 967 1095 772 961 961 972 941 1044 751 920 920 927 910 987 730
75 926 754 1019 581 1101 396 882 732 970 560 1048 377 838 710 919 538 991 356
80 937 912 1019 719 1102 535 898 884 971 698 1049 514 852 852 920 675 992 493
24000
85 978 978 1023 852 1104 670 939 939 975 830 1051 650 898 898 924 807 994 628
90 1026 1026 1035 1010 1105 806 986 986 985 985 1052 785 942 942 942 942 995 762
75 938 784 1030 598 1110 400 893 761 981 577 1055 380 847 738 928 555 997 360
80 950 950 1031 746 1111 548 912 912 982 724 1057 528 871 871 930 701 999 507
26000
85 1001 1001 1034 887 1112 693 961 961 985 865 1058 673 918 918 933 842 1000 651
90 1049 1049 1048 1048 1113 838 1006 1006 1006 1006 1059 816 960 960 960 960 1001 793
75 944 798 1035 606 1113 402 898 775 985 585 1059 382 851 752 932 563 1000 362
80 960 960 1036 759 1114 555 921 921 987 737 1060 535 880 880 934 714 1001 513
27000
85 1011 1011 1039 905 1116 705 970 970 990 883 1061 684 926 926 937 859 1002 663
90 1059 1059 1058 1058 1117 854 1015 1015 1015 1015 1062 832 968 968 968 968 1003 809
Ambient Temperature
ENT 115
CFM DB Entering Wet Bulb
(F) 61 67 73
CAP SHC CAP SHC CAP SHC
75 750 571 821 446 894 319
80 756 673 822 541 895 415
16000
85 766 761 824 636 897 509
90 799 799 830 739 899 602
75 779 633 849 483 919 327
80 786 762 850 599 920 444
20000
85 817 817 853 712 922 559
90 856 856 863 840 923 674
75 790 663 860 500 927 331
80 799 799 861 627 928 458
22000
85 838 838 865 749 930 583
90 879 879 878 878 931 707
75 800 691 870 518 933 335
80 817 817 872 654 935 472
24000
85 858 858 874 784 936 606
90 898 898 897 897 937 739
75 807 719 878 534 939 339
80 832 832 880 679 940 485
26000
85 875 875 882 819 940 629
90 913 913 913 913 941 770
75 811 733 881 543 941 341
80 839 839 883 691 942 492
27000
85 883 883 886 836 942 641
90 920 920 919 919 943 785

76 RT-PRC036T-EN
 Performance Data

Table 40. Gross cooling capacities (MBh)— 75 ton air-cooled — high efficiency
Ambient Temperature
85 95 105
ENT Entering Wet Bulb
DB 61 67 73 61 67 73 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
75 849 622 938 500 1028 372 810 602 899 482 984 354 771 581 856 462 934 334
80 853 726 939 596 1029 469 817 706 899 577 985 451 778 686 857 557 936 431
16000
85 864 827 942 691 1030 564 823 802 903 673 986 545 788 777 861 653 937 525
90 888 888 946 796 1032 658 856 856 908 777 988 639 824 824 866 757 939 619
75 888 689 979 539 1062 381 849 669 936 521 1013 363 808 648 890 500 960 342
80 900 822 979 656 1063 500 861 802 939 638 1015 481 821 781 890 617 961 460
20000
85 916 916 982 772 1065 615 883 883 940 752 1016 595 847 847 894 731 962 574
90 961 961 994 907 1066 730 927 927 953 887 1018 711 889 889 907 865 963 689
75 905 721 994 558 1073 385 864 700 950 539 1023 366 822 678 902 518 968 346
80 919 869 994 685 1074 514 880 849 951 666 1024 494 834 817 902 645 969 473
22000
85 944 944 998 810 1076 639 910 910 954 789 1026 619 872 872 906 767 970 598
90 990 990 1013 961 1077 765 954 954 963 935 1027 745 913 913 919 905 971 723
75 918 750 1006 575 1082 389 877 730 961 556 1031 370 833 708 912 535 974 349
80 930 907 1007 713 1083 527 892 880 962 694 1032 508 849 849 913 672 975 487
24000
85 969 969 1010 846 1084 662 933 933 965 825 1033 643 893 893 916 803 975 621
90 1015 1015 1023 1002 1085 798 977 977 976 976 1034 778 933 933 933 933 976 754
75 929 779 1017 592 1089 393 888 758 971 573 1037 374 843 736 920 552 979 353
80 942 942 1017 740 1090 540 906 906 972 720 1038 521 867 867 922 698 979 500
26000
85 991 991 1021 881 1091 685 953 953 975 861 1038 666 911 911 924 838 980 644
90 1036 1036 1036 1036 1092 830 996 996 995 995 1039 809 949 949 949 949 980 785
75 934 793 1021 600 1092 394 892 773 975 581 1039 375 847 750 924 560 981 355
80 952 952 1023 753 1093 547 915 915 976 732 1040 527 875 875 925 710 981 506
27000
85 1000 1000 1025 899 1094 697 962 962 979 878 1041 677 919 919 928 855 981 655
90 1045 1045 1045 1045 1096 845 1004 1004 1003 1003 1042 824 956 956 956 956 982 800
Ambient Temperature
ENT 115
CFM DB Entering Wet Bulb
(F) 61 67 73
CAP SHC CAP SHC CAP SHC
75 732 561 812 442 882 314
80 741 665 814 537 883 410
16000
85 751 751 817 632 885 504
90 790 790 823 735 886 597
75 766 627 842 479 902 321
80 780 760 842 596 903 438
20000
85 810 810 846 708 904 552
90 849 849 858 838 905 667
75 778 656 852 497 909 324
80 790 790 853 624 909 451
22000
85 832 832 856 745 910 575
90 870 870 869 869 911 699
75 788 686 860 514 913 328
80 809 809 862 650 914 464
24000
85 851 851 864 780 914 598
90 886 886 886 886 915 730
75 797 714 867 530 917 331
80 826 826 869 674 917 477
26000
85 866 866 871 814 917 621
90 899 899 898 898 917 760
75 801 728 870 538 918 333
80 833 833 872 687 918 484
27000
85 873 873 874 831 918 632
90 904 904 903 903 918 775

RT-PRC036T-EN 77
Performance Data

Table 41. Gross cooling capacities (MBh)— 90 ton air-cooled —standard capacity
Ambient Temperature
85 95 105
EN
Entering Wet Bulb
T
DB 61 67 73 61 67 73 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
75 1007 799 1106 624 1208 432 965 777 1061 604 1158 413 922 753 1013 582 1104 392
80 1020 972 1110 766 1212 580 981 950 1066 744 1162 561 938 927 1017 721 1109 540
27000
85 1052 1052 1116 903 1216 728 1016 1016 1072 881 1167 708 977 977 1024 858 1114 687
90 1106 1106 1131 1082 1220 862 1069 1069 1088 1060 1171 840 1028 1028 1028 1028 1118 817
75 1037 865 1136 666 1235 444 994 842 1089 645 1183 425 948 818 1038 623 1127 404
80 1049 1049 1141 825 1240 615 1012 1012 1094 802 1188 596 972 972 1043 778 1133 575
32000
85 1106 1106 1147 984 1244 783 1068 1068 1100 962 1193 763 1026 1026 1049 938 1137 742
90 1162 1162 1161 1161 1248 935 1122 1122 1121 1121 1197 913 1078 1078 1077 1077 1142 890
75 1060 927 1158 705 1255 456 1015 903 1109 684 1201 436 967 878 1056 662 1143 416
80 1090 1090 1163 880 1261 648 1051 1051 1115 857 1207 628 1008 1008 1063 832 1150 607
37000
85 1149 1149 1169 1061 1265 838 1108 1108 1120 1038 1212 818 1063 1063 1068 1013 1155 797
90 1205 1205 1205 1205 1269 1005 1162 1162 1162 1162 1216 983 1116 1116 1115 1115 1159 959
75 1077 985 1175 742 1271 467 1032 961 1125 721 1216 447 982 936 1071 699 1156 427
80 1123 1123 1181 932 1277 680 1081 1081 1131 909 1222 660 1036 1036 1077 884 1164 639
42000
85 1183 1183 1186 1134 1281 891 1139 1139 1136 1111 1226 871 1092 1092 1082 1082 1168 850
90 1240 1240 1239 1239 1284 1072 1195 1195 1194 1194 1230 1049 1145 1145 1145 1145 1172 1025
75 1086 1018 1183 763 1279 473 1040 994 1132 742 1223 453 990 968 1078 720 1163 432
80 1140 1140 1189 962 1280 698 1097 1097 1139 939 1224 678 1051 1051 1085 913 1164 657
45000
85 1200 1200 1194 1176 1288 922 1155 1155 1144 1144 1233 902 1107 1107 1089 1089 1175 854
90 1257 1257 1257 1257 1292 1111 1211 1211 1210 1210 1237 1088 1160 1160 1160 1160 1178 1063
Ambient Temperature
115
EN
Entering Wet Bulb
T
DB 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC
75 875 729 961 560 1046 371
80 886 886 966 696 1051 518
27000
85 936 936 972 833 1056 662
90 985 985 984 984 1060 792
75 899 792 983 601 1066 383
80 928 928 990 753 1073 552
32000
85 980 980 995 912 1077 719
90 1030 1030 1029 1029 1082 864
75 917 852 1000 639 1081 394
80 962 962 1007 806 1088 585
37000
85 1014 1014 1012 987 1093 774
90 1064 1064 1064 1064 1097 932
75 930 909 1013 676 1092 404
80 988 988 1020 857 1094 616
42000
85 1041 1041 1025 1025 1105 801
90 1091 1091 1091 1091 1108 998
75 937 937 1019 697 1098 410
80 1001 1001 1026 886 1099 635
45000
85 1054 1054 1031 1031 1111 827
90 1105 1105 1104 1104 1114 1036

78 RT-PRC036T-EN
 Performance Data

Table 42. Gross cooling capacities (MBh)— 90 ton air-cooled — high capacity and high efficiency
Ambient Temperature
85 95 105
Entering Wet Bulb
ENT
DB 61 67 73 61 67 73 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
75 1071 853 1176 665 1278 459 1028 830 1130 645 1227 440 982 805 1079 623 1173 419
80 1087 1013 1179 815 1282 616 1046 990 1134 793 1233 596 1001 966 1084 769 1179 576
27000
85 1122 1122 1184 962 1284 771 1085 1085 1139 940 1235 750 1044 1044 1089 916 1182 727
90 1176 1176 1200 1122 1287 914 1139 1139 1156 1100 1239 893 1097 1097 1108 1076 1186 870
75 1103 926 1206 712 1307 472 1059 903 1158 691 1254 452 1010 877 1106 669 1197 432
80 1121 1121 1211 880 1311 656 1082 1082 1163 857 1260 636 1040 1040 1111 833 1204 615
32000
85 1179 1179 1214 1052 1313 828 1140 1140 1167 1030 1262 806 1096 1096 1116 1005 1207 783
90 1235 1235 1235 1235 1314 995 1195 1195 1194 1194 1264 974 1150 1150 1149 1149 1210 950
75 1127 997 1229 757 1328 484 1081 972 1179 736 1274 465 1031 946 1125 714 1215 444
80 1165 1165 1233 942 1332 693 1124 1124 1184 919 1280 673 1079 1079 1131 894 1223 653
37000
85 1224 1224 1236 1140 1333 882 1182 1182 1188 1117 1282 860 1136 1136 1135 1092 1225 836
90 1280 1280 1279 1279 1333 1074 1237 1237 1236 1236 1282 1052 1189 1189 1189 1189 1226 1029
75 1145 1064 1246 799 1345 496 1098 1039 1195 780 1289 477 1047 1013 1140 756 1229 456
80 1200 1200 1250 1002 1349 729 1157 1157 1201 979 1295 710 1111 1111 1146 953 1237 689
42000
85 1259 1259 1252 1224 1349 934 1216 1216 1203 1201 1296 912 1168 1168 1149 1149 1239 888
90 1314 1314 1314 1314 1347 1151 1270 1270 1269 1269 1295 1129 1220 1220 1220 1220 1238 1105
75 1154 1103 1255 824 1354 503 1106 1078 1204 805 1297 484 1055 1052 1148 756 1236 463
80 1217 1217 1259 1037 1357 751 1174 1174 1208 1013 1303 731 1126 1126 1154 988 1245 711
45000
85 1277 1277 1260 1260 1356 965 1232 1232 1210 1210 1303 943 1183 1183 1156 1156 1245 918
90 1332 1332 1331 1331 1355 1197 1286 1286 1286 1286 1302 1174 1236 1236 1235 1235 1244 1150
Ambient Temperature
115
Entering Wet Bulb
ENT
DB 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC
75 934 779 1026 600 1114 397
80 954 940 1031 743 1121 554
27000
85 1001 1001 1036 890 1124 702
90 1052 1052 1057 1050 1128 845
75 959 851 1050 646 1135 410
80 995 995 1056 807 1144 593
32000
85 1049 1049 1060 979 1147 757
90 1100 1100 1100 1100 1150 925
75 978 919 1068 691 1152 422
80 1031 1031 1074 867 1161 630
37000
85 1086 1086 1078 1065 1164 810
90 1137 1137 1137 1137 1165 1003
75 993 985 1082 708 1164 434
80 1060 1060 1088 926 1174 667
42000
85 1115 1115 1090 1090 1176 861
90 1166 1166 1165 1165 1176 1079
75 1000 1000 1089 728 1170 441
80 1075 1075 1094 960 1181 689
45000
85 1129 1129 1097 1097 1182 891
90 1180 1180 1179 1179 1181 1123

RT-PRC036T-EN 79
Performance Data

Table 43. Gross cooling capacities (MBh)— 105 ton air-cooled — high capacity
Ambient Temperature
85 95 105
ENT Entering Wet Bulb
DB 61 67 73 61 67 73 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
75 1175 944 1290 736 1404 505 1127 919 1238 713 1346 483 1075 891 1181 688 1284 460
80 1194 1138 1294 903 1408 681 1148 1112 1242 878 1352 659 1097 1085 1186 851 1290 636
31000
85 1235 1235 1300 1067 1413 856 1193 1193 1249 1042 1356 834 1147 1147 1192 1015 1295 810
90 1296 1296 1320 1263 1416 1015 1253 1253 1270 1238 1360 991 1206 1206 1205 1205 1299 965
75 1200 1000 1314 770 1426 515 1151 974 1260 747 1367 493 1097 946 1201 722 1302 470
80 1215 1215 1319 953 1431 711 1172 1172 1265 927 1373 689 1125 1125 1207 900 1309 665
35000
85 1280 1279 1324 1136 1435 906 1235 1235 1271 1111 1377 883 1187 1187 1213 1083 1313 860
90 1342 1342 1341 1341 1438 1078 1296 1296 1296 1296 1380 1053 1246 1246 1245 1245 1317 1026
75 1220 1054 1333 804 1444 524 1169 1027 1277 781 1383 502 1114 999 1217 756 1317 479
80 1251 1251 1338 1000 1449 739 1206 1206 1283 975 1389 717 1157 1157 1224 947 1324 693
39000
85 1316 1316 1343 1203 1452 954 1270 1270 1289 1177 1393 932 1219 1219 1229 1149 1328 908
90 1380 1380 1379 1379 1455 1138 1332 1332 1331 1331 1396 1113 1279 1279 1278 1278 1332 1086
75 1237 1105 1348 837 1458 533 1185 1078 1292 813 1396 511 1128 1049 1230 788 1329 488
80 1281 1281 1354 1046 1463 767 1235 1235 1298 1020 1403 745 1183 1183 1237 992 1337 721
43000
85 1347 1347 1358 1267 1466 997 1299 1299 1303 1241 1406 975 1247 1247 1242 1212 1341 951
90 1411 1411 1410 1410 1469 1197 1361 1361 1361 1361 1409 1172 1306 1306 1306 1306 1344 1144
75 1240 1118 1352 845 1461 536 1188 1091 1295 821 1399 514 1131 1062 1233 796 1332 490
80 1288 1288 1357 1058 1467 774 1241 1241 1301 1031 1406 751 1190 1190 1240 1003 1340 728
44000
85 1354 1354 1362 1283 1470 1009 1306 1306 1306 1257 1409 986 1253 1253 1245 1228 1343 962
90 1418 1418 1418 1418 1472 1211 1368 1368 1367 1367 1412 1186 1312 1312 1312 1312 1346 1159
75 1247 1143 1358 860 1468 540 1194 1116 1301 837 1405 518 1137 1086 1239 812 1337 495
80 1301 1301 1364 1080 1473 787 1253 1253 1307 1053 1411 765 1201 1201 1246 1025 1345 741
46000
85 1368 1368 1368 1314 1476 1031 1318 1318 1312 1288 1414 1009 1264 1264 1250 1250 1349 958
90 1431 1431 1431 1431 1478 1240 1380 1380 1380 1380 1417 1214 1324 1324 1323 1323 1351 1187
Ambient Temperature
ENT 115
CFM DB Entering Wet Bulb
(F) 61 67 73
CAP SHC CAP SHC CAP SHC
75 1020 862 1119 662 1216 435
80 1039 1039 1125 822 1223 610
31000
85 1097 1097 1131 986 1228 784
90 1153 1153 1153 1153 1232 936
75 1040 916 1138 696 1232 445
80 1075 1075 1144 870 1240 640
35000
85 1134 1134 1150 1053 1245 834
90 1190 1190 1190 1190 1249 997
75 1055 968 1152 729 1245 454
80 1104 1104 1159 916 1254 668
39000
85 1164 1164 1164 1118 1258 883
90 1221 1221 1220 1220 1262 1056
75 1068 1018 1164 761 1256 463
80 1128 1128 1171 961 1265 695
43000
85 1189 1189 1176 1176 1269 925
90 1246 1246 1245 1245 1272 1114
75 1071 1030 1167 769 1258 465
80 1134 1134 1174 972 1268 702
44000
85 1194 1194 1179 1179 1272 909
90 1251 1251 1251 1251 1274 1128
75 1076 1055 1172 785 1263 470
80 1144 1144 1179 994 1272 716
46000
85 1205 1205 1184 1184 1276 928
90 1262 1262 1261 1261 1279 1157

80 RT-PRC036T-EN
 Performance Data

Table 44. Gross cooling capacities (MBh)— 115 ton air-cooled — standard capacity
Ambient Temperature
85 95 105
ENT Entering Wet Bulb
DB 61 67 73 61 67 73 61 67 73
CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
75 1229 989 1350 770 1468 528 1180 962 1296 746 1409 506 1126 933 1237 721 1345 483
80 1249 1179 1354 944 1472 713 1201 1153 1301 919 1415 690 1149 1124 1243 891 1352 667
31000
85 1293 1293 1360 1116 1474 894 1250 1250 1307 1091 1417 869 1202 1202 1249 1063 1355 842
90 1356 1356 1380 1307 1478 1061 1312 1312 1329 1282 1422 1036 1263 1263 1273 1254 1359 1009
75 1256 1048 1375 808 1491 539 1204 1021 1320 784 1430 517 1148 992 1259 758 1364 493
80 1282 1267 1380 997 1496 744 1229 1229 1325 971 1436 722 1180 1180 1265 943 1372 698
35000
85 1340 1340 1384 1190 1498 940 1295 1295 1330 1164 1439 915 1245 1245 1270 1136 1375 888
90 1404 1404 1404 1404 1500 1127 1358 1358 1358 1358 1442 1102 1306 1306 1306 1306 1379 1075
75 1277 1106 1395 843 1509 549 1224 1078 1338 821 1447 527 1167 1048 1276 795 1380 503
80 1311 1311 1400 1048 1514 774 1265 1265 1344 1022 1454 752 1214 1214 1283 993 1388 728
39000
85 1379 1379 1404 1261 1516 984 1332 1332 1349 1235 1456 959 1279 1279 1287 1206 1391 932
90 1444 1444 1443 1443 1518 1191 1395 1395 1395 1395 1458 1166 1341 1341 1341 1341 1394 1139
75 1294 1161 1411 879 1525 559 1240 1134 1354 855 1461 536 1182 1103 1290 829 1393 512
80 1343 1343 1416 1098 1529 804 1296 1296 1359 1071 1468 782 1243 1243 1297 1042 1401 758
43000
85 1412 1412 1420 1331 1531 1028 1363 1363 1363 1304 1470 1002 1309 1309 1301 1275 1404 974
90 1476 1476 1476 1476 1531 1254 1426 1426 1425 1425 1471 1229 1370 1370 1369 1369 1405 1202
75 1298 1175 1415 887 1528 561 1244 1147 1357 863 1465 539 1185 1117 1293 838 1396 515
80 1350 1350 1420 1110 1533 812 1302 1302 1363 1083 1471 789 1249 1249 1300 1054 1404 765
44000
85 1419 1419 1423 1348 1534 1038 1370 1370 1367 1321 1473 1013 1315 1315 1304 1292 1407 985
90 1484 1484 1483 1483 1534 1270 1433 1433 1432 1432 1474 1245 1376 1376 1376 1376 1408 1217
75 1305 1202 1422 904 1535 566 1251 1174 1363 881 1471 543 1191 1143 1299 855 1401 520
80 1364 1364 1427 1134 1539 826 1315 1315 1369 1107 1477 804 1262 1262 1306 1078 1410 780
46000
85 1433 1433 1430 1382 1540 1059 1383 1383 1373 1355 1479 1034 1327 1327 1310 1310 1412 1006
90 1497 1497 1497 1497 1540 1301 1445 1445 1445 1445 1479 1275 1388 1388 1388 1388 1413 1248
Ambient Temperature
ENT 115
CFM DB Entering Wet Bulb
(F) 61 67 73
CAP SHC CAP SHC CAP SHC
75 1069 903 1174 694 1275 457
80 1090 1090 1180 861 1283 641
31000
85 1151 1151 1186 1033 1288 820
90 1210 1210 1209 1209 1291 980
75 1090 961 1194 731 1292 467
80 1128 1128 1200 913 1302 672
35000
85 1190 1190 1206 1105 1305 858
90 1249 1249 1249 1249 1309 1045
75 1106 1017 1210 768 1306 477
80 1159 1159 1217 962 1316 702
39000
85 1222 1222 1221 1175 1320 902
90 1281 1281 1281 1281 1322 1109
75 1120 1071 1222 802 1318 487
80 1186 1186 1230 1011 1328 732
43000
85 1249 1249 1234 1234 1332 944
90 1308 1308 1307 1307 1333 1171
75 1123 1085 1225 810 1321 489
80 1192 1192 1233 1022 1331 739
44000
85 1255 1255 1236 1236 1334 954
90 1314 1314 1313 1313 1335 1187
75 1128 1111 1230 828 1325 494
80 1203 1203 1238 1046 1336 754
46000
85 1266 1266 1241 1241 1339 975
90 1325 1325 1324 1324 1339 1217

RT-PRC036T-EN 81
Performance Data

Table 45. Gross cooling capacities (MBh)— 130 ton air-cooled — standard capacity
Ambient Temperature
ENT 85 95 105
CFM DB Entering Wet Bulb
(F) 61 67 73 61 67 73 61 67 73
CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
75 1332 1041 1463 818 1593 574 1278 1012 1406 792 1530 550 1221 981 1343 765 1461 524
80 1349 1231 1467 997 1597 759 1297 1202 1410 969 1535 735 1241 1171 1347 939 1467 709
31000
85 1381 1381 1474 1169 1601 941 1335 1335 1417 1141 1532 917 1285 1285 1354 1111 1469 890
90 1449 1449 1491 1359 1603 1113 1402 1402 1435 1331 1542 1086 1350 1350 1375 1301 1475 1057
75 1362 1102 1493 857 1620 585 1307 1072 1433 831 1555 560 1247 1041 1368 803 1484 534
80 1385 1319 1497 1051 1624 791 1332 1290 1439 1023 1561 767 1274 1258 1374 992 1491 740
35000
85 1435 1435 1503 1243 1627 993 1387 1387 1445 1215 1563 966 1333 1333 1380 1184 1495 943
90 1504 1504 1526 1461 1630 1180 1455 1455 1470 1433 1567 1153 1399 1399 1399 1399 1498 1123
75 1387 1160 1517 894 1642 595 1331 1130 1456 868 1575 570 1269 1098 1389 840 1502 544
80 1417 1405 1522 1103 1646 822 1358 1358 1461 1074 1581 797 1304 1304 1395 1043 1510 771
39000
85 1480 1480 1527 1315 1649 1038 1429 1429 1467 1286 1584 1010 1374 1374 1400 1255 1513 981
90 1549 1549 1549 1549 1652 1245 1497 1497 1497 1497 1587 1217 1440 1440 1439 1439 1516 1187
75 1408 1216 1536 928 1660 605 1350 1186 1473 904 1592 580 1287 1153 1405 876 1517 554
80 1443 1443 1541 1152 1664 852 1393 1393 1479 1123 1598 827 1337 1337 1412 1092 1525 801
43000
85 1517 1517 1545 1385 1667 1081 1465 1465 1484 1356 1601 1054 1407 1407 1416 1324 1528 1024
90 1587 1587 1586 1586 1668 1308 1533 1533 1532 1532 1603 1280 1473 1473 1472 1472 1531 1250
75 1412 1230 1540 937 1664 607 1354 1200 1477 913 1595 583 1291 1167 1409 883 1521 556
80 1452 1452 1545 1165 1668 859 1400 1400 1483 1136 1601 835 1344 1344 1415 1104 1529 808
44000
85 1526 1526 1549 1402 1670 1110 1473 1473 1488 1373 1604 1064 1414 1414 1420 1341 1532 1034
90 1595 1595 1595 1595 1672 1323 1541 1541 1540 1540 1606 1296 1480 1480 1480 1480 1534 1265
75 1421 1257 1548 954 1672 612 1362 1227 1485 928 1602 587 1298 1193 1416 900 1527 561
80 1468 1468 1553 1189 1676 874 1415 1415 1491 1160 1608 849 1358 1358 1422 1128 1535 823
46000
85 1542 1542 1557 1436 1678 1135 1488 1488 1495 1407 1611 1086 1428 1428 1427 1375 1538 1055
90 1611 1611 1611 1611 1679 1354 1556 1556 1555 1555 1612 1326 1494 1494 1494 1494 1540 1296
Ambient Temperature
ENT 115
CFM DB Entering Wet Bulb
(F) 61 67 73
CAP SHC CAP SHC CAP SHC
75 1160 949 1275 735 1386 496
80 1182 1139 1281 907 1393 680
31000
85 1232 1232 1287 1078 1396 859
90 1294 1294 1309 1268 1402 1025
75 1184 1008 1298 773 1407 506
80 1210 1210 1305 959 1415 712
35000
85 1276 1276 1311 1151 1419 914
90 1340 1340 1339 1339 1423 1091
75 1204 1064 1317 810 1423 516
80 1246 1246 1324 1009 1432 742
39000
85 1313 1313 1329 1221 1436 948
90 1376 1376 1376 1376 1439 1154
75 1220 1119 1332 844 1437 526
80 1276 1276 1339 1058 1446 772
43000
85 1344 1344 1343 1290 1450 991
90 1407 1407 1407 1407 1452 1217
75 1224 1132 1335 853 1440 528
80 1283 1283 1342 1070 1449 780
44000
85 1351 1351 1347 1307 1453 1001
90 1414 1414 1414 1414 1455 1232
75 1231 1159 1341 870 1446 533
80 1296 1296 1348 1093 1455 794
46000
85 1364 1364 1353 1341 1458 1022
90 1427 1427 1426 1426 1460 1263

82 RT-PRC036T-EN
 Performance Data

Heating Performance
Table 46. Natural gas heating capacities
Gas Heat Heat Air Temperature Rise Vs Unit Cfm
Nom. Heat Input Output CFM
Tons Module (MBh) (MBh) 4,000 5,000 6,000 6,140 6,700 7,000 8,000 9,000 10,000 10,450 11,000 11,400 12,000 13,500 14,000 15,000 16,000 17,200 18,000 20,000 22,500 25,000 27,000
Low 235 188 43 35 29 28 26 25 22 19
20
High 500 400 60 55 53 46 41
Low 235 188 35 29 28 26 25 22 19 17 17 16
25
High 500 400 60 55 53 46 41 37 35 34
Low 350 280 43 42 39 37 32 29 26 25 23 23 22 19
30
High 500 400 55 53 46 41 37 35 34 32 31 27
Low 350 280 32 29 26 25 23 23 22 19 18 17 16 15
40
High 850 680 60 57 55 52 46 45 42 39 36 35
Low 500 400 37 35 34 32 31 27 26 25 23 21 20 18 16
50-55
High 850 680 55 52 46 45 42 39 36 35 31 28
Low 500 400 26 25 23 21 20 18 16 15 14
60
High 850 680 45 42 39 36 35 31 28 25 23
Low 500 400 26 25 23 21 20 18 16 15 14
70
High 850 680 45 42 39 36 35 31 28 25 23
Low 500 400 26 25 23 21 20 18 16 15 14
75
High 850 680 45 42 39 36 35 31 28 25 23
Notes:
1 All heaters are 80% efficient.
2 CFM values below the minimum and above the maximum shown in this table are not cULus approved.
3 Air temperature rise = heat output (Btu) ÷ (CFM x 1.085).

Table 47. Natural gas heating capacities

Air Temperature Rise vs. Unit CFM
Gas Heat Heat
CFM
Nom Heat Input Output
Tons Module (MBh) (MBh) 26,000 28,000 30,000 32,000 34,000 36,000 38,000 40,000 42,000 44,000 46,000
90
thru High 1000 800 28 26 25 23 22 20 19 18 18 17 16
130
Notes:
1 All heaters are 80% efficient.
2 CFM values below the minimums and above the maximums shown in this table are not cULus approved.
3 Air Temperature Rise = Heat Output (Btu) ÷ (CFM x 1.085).

Table 48. Steam heating capacities (Q/ITD)(a)

20 Nominal Ton Unit 25 Nominal Ton Unit 30 Nominal Ton Unit
Unit Standard Unit Standard Unit Standard
Air Volume (CFM) Air Volume (CFM) Air Volume (CFM)
Steam Steam Steam
Module 4000 6000 8000 10000 Module 5000 7500 10000 12500 Module 6000 9000 12000 15000
Low Heat 0.95 1.18 1.37 1.52 Low Heat 1.06 1.33 1.52 1.74 Low Heat 1.18 1.64 1.69 2.00
High Heat 1.94 2.47 2.95 3.31 High Heat 2.20 2.85 3.31 3.65 High Heat 2.47 3.12 3.59 3.95

40 Nominal Ton Unit 50 to 55 Nominal Ton Unit 60 Nominal Ton Unit

Unit Standard Unit Standard Unit Standard
Air Volume (CFM) Air Volume (CFM) Air Volume (CFM)
Steam Steam Steam
Module 8000 12000 16000 20000 Module 10000 15000 20000 25000 Module 12000 18000 24000 30000
Low Heat 1.61 2.01 2.29 2.60 Low Heat 1.82 2.21 2.60 2.85 Low Heat 2.32 2.81 3.33 3.71
High Heat 3.36 4.28 4.93 5.43 High Heat 3.86 4.79 5.43 5.97 High Heat 3.85 4.84 5.62 6.18

RT-PRC036T-EN 83
Performance Data

Table 48. Steam heating capacities (Q/ITD)(a) (continued)

70/80 & 75 Nominal Ton Unit 90, 105, 115, 130 Nominal Ton Units
Unit Standard Unit Standard
Air Volume (CFM) Air Volume (CFM)
Steam Steam
Module 16000 20000 24000 30000 Module 27000 33000 40000 46000
Low Heat 2.65 2.98 3.33 3.71 Low Heat 5.17 5.70 6.19 6.53
High Heat 4.50 5.10 5.62 6.18 High Heat 8.83 8.80 9.04 9.26
(a) Capacities expressed as MBh (Q) per initial temperature difference (ITD) between the entering air temperature to the steam module and the entering
steam temperature. Maximum recommended operating pressure is 35 PSIG.

Table 49. Properties of steam

Steam Pressure (Psig) 2 5 10 15 20 25 30 40 50
Temperature Of Steam (°F) 219 227 239 250 259 267 274 287 298

Table 50. Electric heat air temperature rise — 20 to 75 tons

CFM
kW Total
Input MBh 4000 6000 8000 10000 12000 14000 16000 18000 20000 22000 24000 26000
30 102.4 23.6 15.7 11.8 9.4 7.9 6.7 5.9 5.2 4.7 4.3 3.9 3.6
50 170.6 39.3 26.2 19.7 15.7 13.1 11.2 9.8 8.7 7.9 7.1 6.6 6.0
70 238.8 55.0 36.7 27.5 22.0 18.3 15.7 13.8 12.2 11.0 10.0 9.2 8.5
90 307.1 47.2 35.4 28.3 23.6 20.2 17.7 15.7 14.2 12.9 11.8 10.9
110 375.3 57.7 43.2 34.6 28.8 24.7 21.6 19.2 17.3 15.7 14.4 13.3
130 443.6 51.1 40.9 34.1 29.2 25.6 22.7 20.4 18.6 17.0 15.7
150 511.8 59.0 47.2 39.3 33.7 29.5 26.2 23.6 21.4 19.7 18.1
170 580.1 53.5 44.6 38.2 33.4 29.7 26.7 24.3 22.3 20.6
190 648.3 59.8 49.8 42.7 37.3 33.2 29.9 27.2 24.9 23.0
Notes:
1 Maximum permitted air temperature rise; 20-50 tons (cULus - 50°F), 60 - 75 tons (cULus - 43°F).
2 Air temperature rise = kW x 3413 ÷ (scfm x 1.085)
3 All heaters on units provide 3 increments of capacity.
4 200 and 230 volt electric heat rooftops require dual power supplies to the control box. All other rooftops have single
power connections. See “Electrical Data,” p. 135 for electrical sizing information.

Table 51. Electric heat air temperature rrse — 90 to 130 tons

kW Total CFM
Input MBh 24000 27000 30000 33000 36000 40000
190 648.3 24.9 22.1 19.9 18.1 16.5 15.3
Notes:
1 Air temperature = kW x 3413 ÷ (scfm x 1.085)
2 Only available in 460/60/3 and 575/60/3 voltages.

Table 52. Electric heat kW ranges

Nominal Voltage
Nominal Tons 200 230 460 575
20 30-90 30-110 30-110 30-110
25 30-90 30-110 30-130 30-130
30 30-110 30-110 30-150 30-150
40 50-110 50-110 50-170 50-170
50-55 70-110 70-110 70-190 70-190

84 RT-PRC036T-EN
 Performance Data

Table 52. Electric heat kW ranges

Nominal Voltage
Nominal Tons 200 230 460 575
60 90-110 90-110 90-190 90-190
70 90-110 90-110 90-190 90-190
75 90-110 90-110 90-190 90-190
90 NA NA 190 190
105 NA NA 190 190
115 NA NA 190 190
130 NA NA 190 190

Table 53. Hot water heating capacities (Q/ITD)(a)

20, 25, 30 Nominal Tons(b)

Unit Standard Air Volume (CFM)
Hot Water Water
Module Gpm PD (Ft) 4000 6000 8000 10000 12000 14000
Low 10 0.54 1.65 1.99 2.21 2.37 2.48 2.56
High 20 0.91 2.23 2.78 3.16 3.44 3.67 3.85
Low 20 0.91 1.88 2.35 2.69 2.94 3.12 3.27
High 30 1.49 2.36 3.00 3.46 3.81 4.09 4.31
Low 30 1.49 1.97 2.51 2.90 3.19 3.42 3.60
High 40 2.25 2.43 3.12 3.63 4.02 4.34 4.60
Low 40 2.25 2.02 2.60 3.02 3.34 3.60 3.79
High 50 3.20 2.48 3.20 3.74 4.17 4.51 4.80
Low 60 4.31 2.08 2.69 3.16 3.51 3.79 4.02
High 70 5.65 2.54 3.30 3.88 4.35 4.73 5.04
40, 50 to 55 Nominal Tons(b)
Unit Standard Air Volume (CFM)
Hot Water Water
Module Gpm PD (Ft) 8000 11000 14000 17000 20000 23000
Low 20 0.70 3.00 3.44 3.75 3.98 4.14 4.29
High 30 1.05 3.85 4.46 4.91 5.26 5.54 5.76
Low 40 1.51 3.40 4.00 4.43 4.76 5.02 5.21
High 50 2.10 4.20 4.95 5.52 5.97 6.34 6.64
Low 60 2.78 3.56 4.23 4.73 5.11 5.40 5.63
High 75 4.04 4.39 5.24 5.89 6.41 6.85 7.21
Low 80 4.50 3.65 4.36 4.89 5.31 5.63 5.88
High 90 5.54 4.46 5.34 6.03 6.58 7.04 7.42
Low 100 6.66 3.71 4.44 5.00 5.43 5.77 6.04
High 125 9.99 4.56 5.50 6.23 6.83 7.33 7.75
continued on next page

RT-PRC036T-EN 85
Performance Data

Table 53. Hot water heating capacities (Q/ITD)(a) (continued)

60, 70, 75 Nominal Tons(b)

Unit Standard Air Volume (CFM)
Hot Water Water
Module Gpm PD (Ft) 12000 16000 20000 24000 28000 31500
Low 25 0.98 4.28 4.82 5.20 5.48 5.69 5.83
High 30 1.22 5.24 5.91 6.40 6.77 7.06 7.27
Low 50 2.48 4.90 5.63 6.18 6.60 6.92 7.15
High 60 3.33 6.01 6.94 7.66 8.22 8.69 9.03
Low 75 4.83 5.14 5.97 6.60 7.09 7.46 7.73
High 90 6.65 6.32 7.38 8.20 8.87 9.42 9.83
Low 100 8.00 5.28 6.16 6.84 7.36 7.78 8.07
High 120 11.15 6.49 7.62 8.51 9.23 9.84 10.30
Low 125 11.99 5.37 6.29 6.99 7.54 7.98 8.29
High 150 16.80 6.60 7.77 8.71 9.47 10.11 10.60
90, 105, 115, 130 Nominal Tons
Unit Standard Air Volume (CFM)
Hot Water Water
Module Gpm PD (Ft) 27000 30000 33000 36000 39000 42000
Low 30 0.77 6.68 6.87 7.04 7.18 7.30 7.41
High 40 1.02 8.51 8.80 9.04 9.26 9.45 9.62
Low 60 1.69 8.07 8.38 8.64 8.87 9.07 9.25
High 80 2.60 10.21 10.64 11.03 11.38 11.69 11.98
Low 100 3.71 8.82 9.19 9.52 9.80 10.05 10.26
High 120 5.07 10.95 11.46 11.92 12.33 12.71 13.05
Low 140 6.59 9.19 9.60 9.96 10.27 10.55 10.79
High 160 8.37 11.37 11.93 12.43 12.88 13.30 13.67
Low 175 9.80 9.39 9.82 10.20 10.53 10.82 11.07
High 200 12.52 11.64 12.23 12.76 13.24 13.68 14.08
(a) Capacities expressed as MBh per initial temperature difference (ITD) between the entering air temperature to the hot water
coil and the entering water temperature. Ethylene glycol or other capacities can be determined from the Trane® heating
coil computer program. Capacity and pressure drop of ethylene glycol vary greatly with temperature and concentration.
(b) Model number sizes are listed as air-cooled/evaporative condensing

86 RT-PRC036T-EN
 Performance Data

Supply Fan Performance

Figure 7. Supply fan performance with or without variable frequency drive - 20 and 25 ton air-cooled - forward curved

8.0
1700 RPM
7.5

7.0 1600 RPM

6.5
1500 RPM
6.0

5.5
1400 RPM
Stac Pressure, Inches w.c.

5.0

4.5 1300 RPM

4.0 1200 RPM

3.5
1100 RPM
3.0
1000 RPM
2.5
900 RPM
2.0
800 RPM
1.5

1.0 600 RPM

0.5
90%
0.0
0 2000 4000 6000 8000 10000 12000
Airflow, CFM

Important: Maximum static pressure leaving the rooftop is 4.0" H2O positive. The static pressure drops from the supply
fan to the space cannot exceed 4.0" H2O.

Notes:
• Fan performance for 20 and 25 ton rooftops is identical. Contact your local Trane®
representative for information on oversized motors.
• Shaded areas represent selectable area. Contact your local Trane® representative for more
information.
• Supply fan performance table includes internal resistance of rooftop. For total static pressure
determination, system external static must be added to appropriate component static pressure
drops (evaporator coil, filters, optional economizer, optional exhaust fan, optional heating
system, optional cooling only extended casing, optional roof curb).
• Maximum Cfm (for cULus approval) as follows: 20 ton - 9,000 Cfm, 25 ton - 11,000 Cfm.
• Minimum motor horsepower is 3 hp.
• Maximum motor horsepower is 20 hp.
• Maximum fan RPM is 1750.

RT-PRC036T-EN 87
Performance Data

Figure 8. Supply fan performance with variable frequency drive - 20 and 25 ton air-cooled - direct drive plenum,
80% width

2300 RPM 2400 RPM

8.0

7.5
2200 RPM
7.0
2100 RPM
6.5

6.0 2000 RPM

5.5 1900 RPM

Stac Pressure, Inches w.c.

5.0 1800 RPM

4.5
1700 RPM
4.0
1600 RPM
3.5 1500 RPM

3.0 1400 RPM

2.5 1300 RPM

1200 RPM
2.0
1100 RPM
1.5 1000 RPM

1.0

0.5

0.0
0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 12000
Airflow, CFM

Important: Maximum static pressure leaving the rooftop is 4.0" H2O positive. The static pressure drops from the supply
fan to the space cannot exceed 4.0" H2O.

Notes:
• Shaded areas represent selectable area. Contact your local Trane® representative for more
information.
• Supply fan performance curve includes internal resistance of rooftop. For total static pressure
determination, system external static must be added to appropriate component static pressure
drops (evaporator coil, filters, optional economizer, optional exhaust fan, optional heating
system, optional cooling only extended casing, optional roof curb).
• Maximum Cfm (for cULus approval) as follows: 20 ton - 9,000 Cfm, 25 ton - 11,000 Cfm.
• Minimum motor horsepower is 3 hp.
• Maximum motor horsepower is 20 hp.
• Maximum fan RPM is 2400.

88 RT-PRC036T-EN
 Performance Data

Figure 9. Supply fan performance with variable frequency drive - 20 and 25 ton air-cooled - direct drive plenum,
120% width

8.0 2300 RPM 2400 RPM

7.5
2200 RPM
7.0
2100 RPM
6.5

6.0 2000 RPM

5.5 1900 RPM

Stac Pressure, Inches w.c.

5.0 1800 RPM

4.5
1700 RPM
4.0
1600 RPM
3.5 1500 RPM

3.0 1400 RPM

2.5 1300 RPM

1200 RPM
2.0
1100 RPM
1.5 1000 RPM

1.0

0.5

0.0
0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 12000
Airflow, CFM

Important: Maximum static pressure leaving the rooftop is 4.0" H2O positive. The static pressure drops from the supply
fan to the space cannot exceed 4.0" H2O.

Notes:
• Shaded areas represent selectable area. Contact your local Trane® representative for more
information.
• Supply fan performance curve includes internal resistance of rooftop. For total static pressure
determination, system external static must be added to appropriate component static pressure
drops (evaporator coil, filters, optional economizer, optional exhaust fan, optional heating
system, optional cooling only extended casing, optional roof curb).
• Maximum Cfm (for cULus approval) as follows: 20 ton - 9,000 Cfm, 25 ton - 11,000 Cfm.
• Minimum motor horsepower is 3 hp.
• Maximum motor horsepower is 20 hp.
• Maximum fan RPM is 2400.

RT-PRC036T-EN 89
Performance Data

Figure 10. Supply fan performance with or without variable frequency drive — 30 ton air-cooled - forward curved

8.0

7.5 1400 RPM

7.0

6.5
1300 RPM
6.0

5.5 1200 RPM

Stac Pressure, Inches w.c.

5.0
1100 RPM
4.5

4.0
1000 RPM
3.5

3.0 900 RPM

2.5
800 RPM
2.0
700 RPM
1.5
600 RPM
1.0
500 RPM
70%
0.5
80%
90%
0.0
0 2000 4000 6000 8000 10000 12000 14000
Airflow, CFM

Important: Maximum static pressure leaving the rooftop is 4.0" H2O positive. The static pressure drops from the supply
fan to the space cannot exceed 4.0" H2O.

Notes:
• Shaded areas represent selectable area. Contact your local Trane® representative for more
information.
• Supply fan performance table includes internal resistance of rooftop. For total static pressure
determination, system external static must be added to appropriate component static pressure
drops (evaporator coil, filters, optional economizer, optional exhaust fan, optional heating
system, optional cooling only extended casing, optional roof curb).
• Minimum motor horsepower is 5 hp, maximum motor horsepower is 20 hp. Maximum fan RPM
is 1450.
• Max Cfm (for cULus approval) as follows: 30 ton-13,500 Cfm.

90 RT-PRC036T-EN
 Performance Data

Figure 11. Supply fan performance with variable frequency drive — 30 ton air-cooled - direct drive plenum, 80% width

8.0

7.5
2000 RPM
7.0
1900 RPM
6.5

6.0 1800 RPM

5.5
1700 RPM
Stac Pressure, Inches w.c.

5.0
1600 RPM
4.5
1500 RPM
4.0

3.5 1400 RPM

3.0 1300 RPM

1200 RPM
2.5
1100 RPM
2.0
1000 RPM
1.5

1.0

0.5

0.0
0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 12000 13000 14000 15000
Airflow, CFM

Important: Maximum static pressure leaving the rooftop is 4.0" H2O positive. The static pressure drops from the supply
fan to the space cannot exceed 4.0" H2O.

Notes:
• Shaded areas represent selectable area. Contact your local Trane® representative for more
information.
• Supply fan performance curve includes internal resistance of rooftop. For total static pressure
determination, system external static must be added to appropriate component static pressure
drops (evaporator coil, filters, optional economizer, optional exhaust fan, optional heating
system, optional cooling only extended casing, optional roof curb).
• Maximum Cfm (for cULus approval) as follows: 30 ton - 13,500 Cfm.
• Minimum motor horsepower is 3 hp.
• Maximum motor horsepower is 20 hp.
• Maximum fan RPM is 2200.

RT-PRC036T-EN 91
Performance Data

Figure 12. Supply fan performance with variable frequency drive — 30 ton air-cooled- direct drive plenum, 120% width

2100 RPM
8.0

7.5
2000 RPM
7.0

6.5 1900 RPM

6.0 1800 RPM

5.5
1700 RPM
Stac Pressure, Inches w.c.

5.0
1600 RPM
4.5
1500 RPM
4.0

3.5 1400 RPM

3.0 1300 RPM

1200 RPM
2.5
1100 RPM
2.0
1000 RPM
1.5

1.0

0.5

0.0
0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 12000 13000 14000 15000
Airflow, CFM

Important: Maximum static pressure leaving the rooftop is 4.0" H2O positive. The static pressure drops from the supply
fan to the space cannot exceed 4.0" H2O.

Notes:
• Shaded areas represent selectable area. Contact your local Trane® representative for more
information.
• Supply fan performance curve includes internal resistance of rooftop. For total static pressure
determination, system external static must be added to appropriate component static pressure
drops (evaporator coil, filters, optional economizer, optional exhaust fan, optional heating
system, optional cooling only extended casing, optional roof curb).
• Maximum Cfm (for cULus approval) as follows: 30ton - 13,500 Cfm.
• Minimum motor horsepower is 3 hp.
• Maximum motor horsepower is 20 hp.
• Maximum fan RPM is 2100.

92 RT-PRC036T-EN
 Performance Data

Figure 13. Supply fan performance with or without variable frequency drive - 40, 50 and 55 ton air-cooled - forward
curved

8.0
1200 RPM
7.5

7.0
1100 RPM
6.5

6.0
1000 RPM
5.5
Stac Pressure, Inches w.c.

5.0

4.5 900 RPM

4.0
800 RPM
3.5

3.0
700 RPM
2.5
70%
2.0 600 RPM

1.5
500 RPM 80%
1.0
90%
0.5

0.0
0 2000 4000 6000 8000 10000 12000 14000 16000 18000 20000 22000 24000 26000
Airflow, CFM

Important: Maximum static pressure leaving the rooftop is 4.0" H2O positive. The static pressure drops from the supply
fan to the space cannot exceed 4.0" H2O.

Notes:
• Fan performance for 40 and 50 to 55 ton rooftops is identical. Contact your local Trane®
representative for information on oversized motors.
• Shaded areas represent selectable area. Contact your local Trane® representative for more
information.
• Supply fan performance table includes internal resistance of rooftop. For total static pressure
determination, system external static must be added to appropriate component static pressure
drops (evaporator coil, filters, optional economizer, optional exhaust fan, optional heating
system, optional cooling only extended casing, optional roof curb).
• Maximum Cfm (for cULus approval) as follows:
40 ton - 18,000 Cfm
50 ton - 22,500 Cfm
• Minimum motor horsepower is 7.5 hp
• Maximum motor horsepower is 30 hp
• Maximum ½ hp to 15 hp fan Rpm is 1,141 Rpm, maximum 20 hp to 30 hp fan Rpm is 1,170 Rpm.

RT-PRC036T-EN 93
Performance Data

Figure 14. Supply fan performance with variable frequency drive - 40 ton air-cooled - direct drive plenum, 80% width
2000 RPM
8.0 1900 RPM

7.5
1800 RPM
7.0

6.5 1700 RPM

6.0
1600 RPM
5.5

1500 RPM
Stac Pressure, Inches w.c.

5.0

4.5 1400 RPM

4.0
1300 RPM
3.5
1200 RPM
3.0
1100 RPM
2.5
1000 RPM
2.0

1.5

1.0

0.5

0.0
0 2000 4000 6000 8000 10000 12000 14000 16000 18000 20000
Airflow, CFM
Important: Maximum static pressure leaving the rooftop is 4.0" H2O positive. The static pressure drops from the supply
fan to the space cannot exceed 4.0" H2O.

Notes:
• Shaded areas represent selectable area. Contact your local Trane® representative for more
information.
• Supply fan performance curve includes internal resistance of rooftop. For total static pressure
determination, system external static must be added to appropriate component static pressure
drops (evaporator coil, filters, optional economizer, optional exhaust fan, optional heating
system, optional cooling only extended casing, optional roof curb).
• Maximum Cfm (for cULus approval): 18,000 Cfm.
• Minimum motor horsepower is 3 hp.
• Maximum motor horsepower is 25 hp.
• Maximum fan RPM is 2,000.

94 RT-PRC036T-EN
 Performance Data

Figure 15. Supply fan performance with variable frequency drive - 40 ton air-cooled - direct drive plenum, 120% width

8.0
1900 RPM
7.5
1800 RPM
7.0

6.5 1700 RPM

6.0
1600 RPM
5.5

1500 RPM
Stac Pressure, Inches w.c.

5.0

4.5 1400 RPM

4.0
1300 RPM
3.5
1200 RPM
3.0
1100 RPM
2.5
1000 RPM
2.0

1.5

1.0

0.5

0.0
0 2000 4000 6000 8000 10000 12000 14000 16000 18000 20000
Airflow, CFM

Important: Maximum static pressure leaving the rooftop is 4.0" H2O positive. The static pressure drops from the supply
fan to the space cannot exceed 4.0" H2O.

Notes:
• Shaded areas represent selectable area. Contact your local Trane® representative for more
• Supply fan performance curve includes internal resistance of rooftop. For total static pressure
determination, system external static must be added to appropriate component static pressure
drops (evaporator coil, filters, optional economizer, optional exhaust fan, optional heating
system, optional cooling only extended casing, optional roof curb).
• Maximum Cfm (for cULus approval): 18,000 Cfm.
• Minimum motor horsepower is 3 hp.
• Maximum motor horsepower is 25 hp.
• Maximum fan RPM is 1,900.

RT-PRC036T-EN 95
Performance Data

Figure 16. Supply fan performance with variable frequency drive - 50, 55 ton air-cooled- direct drive plenum, 80% width

1800 RPM
8.0
1700 RPM
7.5
1600 RPM
7.0

6.5
1500 RPM
6.0

5.5 1400 RPM

Stac Pressure, Inches w.c.

5.0
1300 RPM
4.5

4.0 1200 RPM

3.5
1100 RPM
3.0
1000 RPM
2.5

2.0

1.5

1.0

0.5

0.0
0 2500 5000 7500 10000 12500 15000 17500 20000 22500 25000 27500
Airflow, CFM
Important: Maximum static pressure leaving the rooftop is 4.0" H2O positive. The static pressure drops from the supply
fan to the space cannot exceed 4.0" H2O.

Notes:
• Shaded areas represent selectable area. Contact your local Trane® representative for more
information.
• Supply fan performance curve includes internal resistance of rooftop. For total static pressure
determination, system external static must be added to appropriate component static pressure
drops (evaporator coil, filters, optional economizer, optional exhaust fan, optional heating
system, optional cooling only extended casing, optional roof curb).
• Maximum Cfm (for cULus approval) is as follows: 22,500 Cfm
• Minimum motor horsepower is 5 hp.
• Maximum motor horsepower is 30 hp.
• Maximum fan RPM is 1,800.

96 RT-PRC036T-EN
 Performance Data

Figure 17. Supply fan performance with variable frequency drive - 50, 55 ton air-cooled - direct drive plenum, 100%
width

1800 RPM
8.0 1700 RPM

7.5
1600 RPM
7.0

6.5
1500 RPM
6.0

5.5 1400 RPM

Stac Pressure, Inches w.c.

5.0
1300 RPM
4.5

4.0 1200 RPM

3.5
1100 RPM
3.0
1000 RPM
2.5

2.0

1.5

1.0

0.5

0.0
0 2500 5000 7500 10000 12500 15000 17500 20000 22500 25000 27500
Airflow, CFM
Important: Maximum static pressure leaving the rooftop is 4.0" H2O positive. The static pressure drops from the supply
fan to the space cannot exceed 4.0" H2O.

Notes:
• Shaded areas represent selectable area. Contact your local Trane® representative for more
information.
• Supply fan performance curve includes internal resistance of rooftop. For total static pressure
determination, system external static must be added to appropriate component static pressure
drops (evaporator coil, filters, optional economizer, optional exhaust fan, optional heating
system, optional cooling only extended casing, optional roof curb).
• Maximum Cfm (for cULus approval) is as follows: 22,500 Cfm
• Motor horsepower is 30 hp.
• Maximum fan RPM is 1,800.

RT-PRC036T-EN 97
Performance Data

Figure 18. Supply fan performance with variable frequency drive - 50, 55 ton air-cooled - direct drive plenum,
120% width
1800 RPM
8.0
1700 RPM
7.5
1600 RPM
7.0

6.5
1500 RPM
6.0

5.5 1400 RPM

Stac Pressure, Inches w.c.

5.0
1300 RPM
4.5

4.0 1200 RPM

3.5
1100 RPM
3.0
1000 RPM
2.5

2.0

1.5

1.0

0.5

0.0
0 2500 5000 7500 10000 12500 15000 17500 20000 22500 25000 27500
Airflow, CFM

Important: Maximum static pressure leaving the rooftop is 4.0" H2O positive. The static pressure drops from the supply
fan to the space cannot exceed 4.0" H2O.

Notes:
• Shaded areas represent selectable area. Contact your local Trane® representative for more
information.
• Supply fan performance curve includes internal resistance of rooftop. For total static pressure
determination, system external static must be added to appropriate component static pressure
drops (evaporator coil, filters, optional economizer, optional exhaust fan, optional heating
system, optional cooling only extended casing, optional roof curb).
• Maximum Cfm (for cULus approval) is as follows: 22,500 Cfm
• Minimum motor horsepower is 5 hp.
• Maximum motor horsepower is 30 hp.
• Maximum fan RPM is 1,700.

98 RT-PRC036T-EN
 Performance Data

Figure 19. Supply fan performance with or without variable frequency drive - 60, 70 and 75 ton air-cooled - forward
curved

8.0 1200 RPM

7.5 1100 RPM

7.0

6.5
1000 RPM
6.0

5.5
Stac Pressure, Inches w.c.

5.0 900 RPM

4.5

4.0 800 RPM

3.5

3.0 700 RPM

2.5
600 RPM
2.0

1.5 500 RPM

1.0 70%

0.5 80%
90%
0.0
0 3000 6000 9000 12000 15000 18000 21000 24000 27000 30000
Airflow, CFM

Important: Maximum static pressure leaving the rooftop is 4.0" H2O positive. The static pressure drops from the supply
fan to the space cannot exceed 4.0" H2O.

Notes:
• Fan performance for 60, 70, and 75 ton rooftops are identical. However, note maximum motor
hp size for each size. Contact your local Trane® representative for information on non-standard
motors.
• Shaded areas represent selectable area. Contact your local Trane® representative for more
information.
• Supply fan performance table includes internal resistance of rooftop. For total static pressure
determination, system external static must be added to appropriate component static pressure
drops (evaporator coil, filters, optional economizer, optional exhaust fan, optional heating
system, optional cooling only extended casing, optional roof curb).
• Maximum Cfm (for cULus approval) as follows: 60 to 75 ton - 27,000 Cfm
• Minimum motor horsepower is 10 hp.
• Maximum motor horsepower is 50 hp.
• Maximum fan Rpm is 1,130.
• 40 & 50 HP motor available as standard in 460 & 575 volt only.

RT-PRC036T-EN 99
Performance Data

Figure 20. Supply fan performance with variable frequency drive - 60 ton cooling only air-cooled - direct drive plenum,
80% width

2100 RPM 2200 RPM

8.0

7.5
2000 RPM
7.0
1900 RPM
6.5

6.0 1800 RPM

5.5
1700 RPM
Stac Pressure, Inches w.c.

5.0
1600 RPM
4.5
1500 RPM
4.0

3.5 1400 RPM

3.0 1300 RPM

1200 RPM
2.5
1100 RPM
2.0
1000 RPM
1.5

1.0

0.5

0.0
0 2500 5000 7500 10000 12500 15000 17500 20000 22500 25000 27500 30000
Airflow, CFM

Important: Maximum static pressure leaving the rooftop is 4.0" H2O positive. The static pressure drops from the supply
fan to the space cannot exceed 4.0" H2O.

Notes:
• Shaded areas represent selectable area. Contact your local Trane® representative for more
information.
• 60 ton units with gas heat use the 27" DDP fans shown for the 70 and 75 ton units. See Figure 22,
p. 102.
• Supply fan performance curve includes internal resistance of rooftop. For total static pressure
determination, system external static must be added to appropriate component static pressure
drops (evaporator coil, filters, optional economizer, optional exhaust fan, optional heating
system, optional cooling only extended casing, optional roof curb).
• Maximum Cfm (for cULus approval): 27,000 Cfm.
• Minimum motor horsepower is 10 hp (2 x 5 hp motors)
• Maximum motor horsepower is 40 hp (2 x 20 hp motors)
• Maximum fan RPM is 2,200.

100 RT-PRC036T-EN
 Performance Data

Figure 21. Supply fan performance with variable frequency drive - 60 ton cooling only air-cooled - direct drive plenum,
120% width

2100 RPM
8.0

7.5
2000 RPM
7.0

6.5 1900 RPM

6.0 1800 RPM

5.5
1700 RPM
Stac Pressure, Inches w.c.

5.0
1600 RPM
4.5
1500 RPM
4.0

3.5 1400 RPM

3.0 1300 RPM

1200 RPM
2.5
1100 RPM
2.0
1000 RPM
1.5

1.0

0.5

0.0
0 2500 5000 7500 10000 12500 15000 17500 20000 22500 25000 27500 30000
Airflow, CFM

Important: Maximum static pressure leaving the rooftop is 4.0" H2O positive. The static pressure drops from the supply
fan to the space cannot exceed 4.0" H2O.

Notes:
• Shaded areas represent selectable area. Contact your local Trane® representative for more
information.
• 60 ton units with gas heat use the 27" DDP fans shown for the 70 and 75 ton units. See Figure 23,
p. 103.
• Supply fan performance curve includes internal resistance of rooftop. For total static pressure
determination, system external static must be added to appropriate component static pressure
drops (evaporator coil, filters, optional economizer, optional exhaust fan, optional heating
system, optional cooling only extended casing, optional roof curb).
• Maximum Cfm (for cULus approval): 27,000 Cfm.
• Minimum motor horsepower is 10 hp (2 x 5 hp motors)
• Maximum motor horsepower is 40 hp (2 x 20 hp motors)
• Maximum fan RPM is 2,100.

RT-PRC036T-EN 101
Performance Data

Figure 22. Supply fan performance with variable frequency drive - 60 ton gas heat, and all 70 and 75 ton air-cooled -
direct drive plenum, 80% width

8.0 1900 RPM 2000 RPM

7.5
1800 RPM
7.0

6.5 1700 RPM

6.0
1600 RPM
5.5

1500 RPM
Stac Pressure, Inches w.c.

5.0

4.5 1400 RPM

4.0
1300 RPM
3.5
1200 RPM
3.0
1100 RPM
2.5
1000 RPM
2.0

1.5

1.0

0.5

0.0
0 2500 5000 7500 10000 12500 15000 17500 20000 22500 25000 27500 30000
Airflow, CFM

Important: Maximum static pressure leaving the rooftop is 4.0" H2O positive. The static pressure drops from the supply
fan to the space cannot exceed 4.0" H2O.

Notes:
• Shaded areas represent selectable area. Contact your local Trane® representative for more
information.
• Supply fan performance curve includes internal resistance of rooftop. For total static pressure
determination, system external static must be added to appropriate component static pressure
drops (evaporator coil, filters, optional economizer, optional exhaust fan, optional heating
system, optional cooling only extended casing, optional roof curb).
• Maximum Cfm (for cULus approval): 27,000 Cfm.
• Minimum motor horsepower is 10 hp (2 x 5 hp motors)
• Maximum motor horsepower is 50 hp (2 x 25 hp motors)
• Maximum fan RPM is 2,000.

102 RT-PRC036T-EN
 Performance Data

Figure 23. Supply fan performance with variable frequency drive - 60 ton gas heat, and all 70 and 75 ton air-cooled-
direct drive plenum, 120% width

8.0 1900 RPM

7.5
1800 RPM
7.0

6.5 1700 RPM

6.0
1600 RPM
5.5
Stac Pressure, Inches w.c.

5.0 1500 RPM

4.5 1400 RPM

4.0
1300 RPM
3.5
1200 RPM
3.0
1100 RPM
2.5
1000 RPM
2.0

1.5

1.0

0.5

0.0
0 2500 5000 7500 10000 12500 15000 17500 20000 22500 25000 27500 30000
Airflow, CFM

Important: Maximum static pressure leaving the rooftop is 4.0" H2O positive. The static pressure drops from the supply
fan to the space cannot exceed 4.0" H2O.

Notes:
• Shaded areas represent selectable area. Contact your local Trane® representative for more
information.
• Supply fan performance curve includes internal resistance of rooftop. For total static pressure
determination, system external static must be added to appropriate component static pressure
drops (evaporator coil, filters, optional economizer, optional exhaust fan, optional heating
system, optional cooling only extended casing, optional roof curb).
• Maximum Cfm (for cULus approval): 27,000 Cfm.
• Minimum motor horsepower is 10 hp (2 x 5 hp motors)
• Maximum motor horsepower is 50 hp (2 x 25 hp motors)
• Maximum fan RPM is 1,900.

RT-PRC036T-EN 103
Performance Data

Figure 24. Supply fan performance with or without variable frequency drive - 90 ton air-cooled

Important: Maximum static pressure leaving the rooftop is 4.0" H2O positive. The static pressure drops from the supply
fan to the space cannot exceed 4.0" H2O.
Notes:
• Supply fan performance table includes internal resistance of rooftop. For total static pressure
determination, system external static must be added to appropriate component static pressure
drops, (evaporator coil, filters, optional economizer, optional heating system, optional roof
curb).
• Minimum motor horsepower is 30 hp.
• Maximum Cfm (for cULus approval): 46,000 Cfm

104 RT-PRC036T-EN
 Performance Data

Figure 25. Supply fan performance with or without variable frequency drive - 105, 115, 130 ton air-cooled

Important: Maximum static pressure leaving the rooftop is 4.0" H2O positive. The static pressure drops from the supply
fan to the space cannot exceed 4.0" H2O.

Notes:
• Supply fan performance curve includes internal resistance of rooftop. For total static pressure
determination, system external static must be added to appropriate component static pressure
drops, (evaporator coil, filters, optional economizer, optional heating system, optional roof
curb).
• Maximum Cfm (for cULus approval): 46,000 Cfm.
• Minimum motor horsepower is 30 hp.

RT-PRC036T-EN 105
 Component Static Pressure Drops
106

Performance Data
Table 54. Component static pressure drops (in. W.G.)
Evaporator Filters Econ w/
Heating System
Coil Throwaway or HGR
CFM SFHL - FC SFHL - DDP SEHL SLHL SSHL Perm Bag & Cartridge Final Filter Std w/out H
Nom Std Dry Wet Low High Low High All kW Low High Low High Std. High Wire Prefilter & Prefilter Cartridge Roof Exhaust
4000 0.12 0.16 0.02 N/A 0.03 N/A 0.02 0.05 0.06 0.02 0.06 0.03 0.03 0.01 0.30 0.24 0.22 0.01 0.03 0.01
6000 0.24 0.29 0.05 0.05 0.05 0.04 0.04 0.09 0.12 0.05 0.12 0.06 0.06 0.02 0.50 0.44 0.30 0.02 0.06 0.02
20
8000 0.37 0.44 0.09 0.09 0.08 0.07 0.07 0.15 0.19 0.10 0.20 0.09 0.09 0.03 0.71 0.68 0.45 0.05 0.12 0.04
9000 0.45 0.52 0.12 0.12 0.10 0.08 0.09 0.19 0.24 0.12 0.22 0.11 0.11 0.04 0.83 0.81 0.55 0.07 0.15 0.05
5000 0.18 0.22 0.03 N/A 0.04 N/A 0.03 0.07 0.09 0.04 0.09 0.05 0.05 0.02 0.40 0.34 0.25 0.01 0.03 0.01
6000 0.24 0.29 0.05 0.05 0.05 0.04 0.04 0.10 0.12 0.06 0.13 0.07 0.07 0.02 0.50 0.44 0.30 0.02 0.05 0.02
25 7500 0.34 0.41 0.08 0.08 0.07 0.06 0.06 0.14 0.17 0.09 0.18 0.09 0.09 0.03 0.66 0.62 0.41 0.04 0.10 0.03
10000 0.53 0.62 0.14 0.15 0.12 0.09 0.11 0.23 0.28 0.15 0.29 0.13 0.13 0.05 0.95 0.95 0.66 0.10 0.19 0.06
11000 0.62 0.71 0.17 0.18 0.14 0.10 0.13 0.29 0.33 0.19 0.35 0.15 0.15 0.06 1.06 1.11 0.79 0.12 0.23 0.07
6000 0.17 0.24 0.05 0.05 0.03 N/A 0.04 0.09 0.12 0.05 0.12 0.04 0.04 0.01 0.34 0.26 0.24 0.02 0.06 0.02
9000 0.33 0.45 0.11 0.12 0.05 0.05 0.09 0.19 0.24 0.12 0.22 0.07 0.07 0.02 0.54 0.48 0.36 0.07 0.15 0.04
30
12000 0.53 0.67 0.20 0.21 0.07 0.07 0.16 0.31 0.39 0.22 0.41 0.11 0.11 0.04 0.75 0.75 0.58 0.16 0.27 0.07
14000 0.68 0.83 0.26 0.29 0.09 0.09 0.22 0.40 0.51 0.30 0.50 0.14 0.14 0.06 0.95 0.95 0.76 0.25 0.39 0.09
8000 0.19 0.26 0.09 N/A 0.13 n/a 0.07 0.09 0.11 0.05 0.11 0.04 0.04 0.02 0.37 0.31 0.25 0.01 0.03 0.02
10000 0.27 0.36 0.14 0.11 0.20 0.37 0.11 0.13 0.16 0.08 0.16 0.06 0.06 0.02 0.49 0.43 0.32 0.02 0.03 0.03
12000 0.36 0.48 0.20 0.15 0.28 0.47 0.16 0.17 0.22 0.11 0.21 0.08 0.08 0.03 0.61 0.56 0.41 0.04 0.07 0.05
40
16000 0.57 0.73 0.34 0.26 0.49 0.70 0.29 0.28 0.36 0.20 0.36 0.12 0.12 0.05 0.88 0.87 0.66 0.10 0.09 0.08
17000 0.62 0.79 N/A 0.29 0.55 0.77 0.32 0.31 0.39 0.22 0.41 0.13 0.13 0.06 0.95 0.95 0.74 0.12 0.11 0.10
18000 0.68 0.86 N/A 0.33 N/A 0.83 0.36 0.35 0.43 0.25 0.44 0.14 0.14 0.07 1.02 1.04 0.83 0.14 0.13 0.11
10000 0.20 0.25 0.12 0.10 0.20 N/A 0.11 0.13 0.16 0.07 0.15 0.04 0.04 0.01 0.37 0.30 0.25 0.03 0.05 0.03
14000 0.34 0.42 0.26 0.20 0.38 0.17 0.22 0.22 0.28 0.15 0.28 0.07 0.07 0.03 0.56 0.50 0.37 0.07 0.08 0.05
50-55 17000 0.46 0.57 0.39 0.29 0.55 0.26 0.32 0.31 0.40 0.22 0.41 0.10 0.10 0.04 0.72 0.68 0.50 0.12 0.11 0.08
20000 0.59 0.73 0.58 0.41 0.75 0.38 0.44 0.42 0.52 0.30 0.51 0.12 0.12 0.05 0.88 0.88 0.66 0.19 0.17 0.11
23000 0.74 0.89 0.69 0.54 0.99 0.53 0.58 0.47 0.67 0.41 0.69 0.15 0.15 0.07 1.05 - 0.87 0.27 0.22 0.14
12000 0.27 0.37 0.10 0.08 0.28 0.14 0.06 0.10 0.13 0.06 0.11 0.05 0.05 0.01 0.44 0.37 0.27 0.02 0.07 0.03
16000 0.43 0.58 0.18 0.14 0.44 0.28 0.11 0.17 0.21 0.11 0.19 0.07 0.07 0.02 0.63 0.58 0.39 0.05 0.10 0.06
60 20000 0.62 0.80 0.27 0.21 0.63 0.46 0.17 0.24 0.31 0.16 0.27 0.10 0.10 0.03 0.84 0.82 0.56 0.10 0.16 0.09
24000 0.83 1.03 0.40 0.30 0.86 0.68 0.24 0.33 0.42 0.22 0.39 0.11 0.11 0.04 1.06 1.08 0.78 0.16 0.23 0.13
27000 1.00 1.22 0.46 0.32 1.05 0.88 0.30 0.41 0.52 0.30 0.47 0.16 0.16 0.06 1.18 1.24 0.98 0.27 0.28 0.16
16000 0.44 0.58 0.18 0.14 0.44 0.28 0.11 0.17 0.21 0.11 0.19 0.07 0.07 0.02 0.63 0.58 0.39 0.05 0.10 0.06
20000 0.62 0.82 0.27 0.21 0.63 0.46 0.17 0.24 0.31 0.16 0.27 0.10 0.10 0.03 0.84 0.82 0.56 0.10 0.16 0.09
22000 0.73 0.94 0.33 0.25 0.74 0.56 0.20 0.29 0.37 0.19 0.33 0.12 0.12 0.04 0.95 0.95 0.66 0.13 0.20 0.11
70-75
24000 0.84 1.07 0.40 0.30 0.86 0.68 0.24 0.33 0.42 0.22 0.39 0.14 0.14 0.04 1.06 1.08 0.78 0.16 0.23 0.13
26000 0.95 1.20 0.47 0.32 0.98 0.81 0.28 0.39 0.49 0.27 0.45 0.16 0.16 0.05 1.17 1.23 0.91 0.23 0.26 0.15
27000 1.01 1.26 0.51 0.33 1.05 0.88 0.30 0.42 0.52 0.30 0.48 0.17 0.17 0.06 1.12 1.26 0.98 0.27 0.28 0.16
Notes:
1 Static pressure drops of accessory components must be added to external static pressure to enter fan selection tables.
2 Gas heat section maximum temperature rise of 60° F.
3 Throwaway filter option limited to 300 ft/min face velocity.
4 Bag filter option limited to 740 ft/min face velocity.
5 Horizontal roof curbs assume 0.50" static pressure drop or double the standard roof curb pressure drop, whichever is greater.
6 No additional pressure loss for model SXHL.
7 For final filters w/ prefilters (digit 13 = M, N, P, Q) also add pressure drop for throwaway filter.
RT-PRC036T-EN
 Table 55. Component static pressure drops, 90-130 ton air-cooled (in. W.G.)
RT-PRC036T-EN

Evaporator High Cap Filters Economizer

Coil Evap Heating System Throwaway With or
CFM SFHL SEHL SLHL SSHL Perm Bag and Cartridge Final Filter Std Without
Nom Std Dry Wet Dry Wet Low High All kW Low High Low High Std. High Wire Prefilter and Prefilter Cartridge Roof Exhaust
27000 0.40 0.53 0.60 0.80 - 0.25 0.13 0.26 0.31 0.22 0.32 0.11 0.13 - 0.68 0.65 0.77 - 0.20
32000 0.53 0.70 0.80 1.03 - 0.31 0.16 0.35 0.41 0.30 0.43 0.14 0.16 - 0.84 0.84 1.07 - 0.31
90 37000 0.67 0.88 1.01 1.32 - 0.39 0.23 0.45 0.52 0.40 0.55 0.17 0.19 - 1.02 1.04 1.43 - 0.41
42000 0.83 1.08 1.25 1.62 - 0.46 0.29 0.56 0.65 0.50 0.68 0.21 0.22 - 1.19 1.06 1.86 - 0.52
45000 0.93 1.20 1.40 1.80 - 0.52 0.32 0.63 0.73 0.58 0.76 0.24 0.24 - - - 2.14 - 0.63
31000 - - 0.63 0.83 - 0.28 0.17 0.33 0.39 0.29 0.40 - 0.13 - 0.82 0.80 1.00 - 0.22
35000 - - 0.77 1.01 - 0.36 0.21 0.41 0.48 0.36 0.50 - 0.16 - 0.96 0.96 1.28 - 0.32
105 39000 - - 0.92 1.20 - 0.42 0.26 0.49 0.57 0.44 0.60 - 0.19 - 1.09 1.12 1.59 - 0.44
43000 - - 1.08 1.40 - 0.45 0.30 0.57 0.66 0.53 0.71 - 0.22 - 1.22 1.30 1.95 - 0.54
46000 1.21 1.56 - 0.55 0.34 0.65 0.75 0.61 0.79 - 0.24 - - 2.24 - 0.64
31000 0.76 1.00 - - - 0.28 0.17 0.33 0.39 0.29 0.40 - 0.13 - 0.82 0.80 1.00 - 0.22
35000 0.92 1.21 - - - 0.36 0.21 0.41 0.48 0.36 0.50 - 0.16 - 0.96 0.96 1.28 - 0.32
115/
39000 1.10 1.44 - - - 0.42 0.26 0.49 0.57 0.44 0.60 - 0.19 - 1.09 1.12 1.59 - 0.44
130
43000 1.30 1.68 - - - 0.45 0.30 0.57 0.66 0.53 0.71 - 0.22 - 1.22 1.30 1.95 - 0.54
46000 1.45 1.86 - - - 0.55 0.34 0.65 0.75 0.61 0.79 - 0.24 - - - 2.24 - 0.64
Notes:
1 Static pressure drops of accessory components must be added to external static pressure to enter fan selection tables.
2 Gas heat section maximum temperature rise of 60°F.
3 Throwaway filter option limited to 300 ft/min face velocity.
4 Bag filter option limited to 740 ft/min face velocity.
5 Horizontal roof curbs assume 0.50" static pressure drop or double the standard roof curb pressure drop, whichever is greater.
6 No additional pressure loss for model SXHK.
7 For final filters w/ prefilters (digit 13 = M, N, P, Q) also add pressure drop for throwaway filter.

Performance Data
107
Performance Data

Table 56. Component static pressure drops (in. W.G.)—exhaust damper for return fan
Exhaust Damper Exhaust Damper
Nom Tons Cfm for Return Fan Nom Tons Cfm for Return Fan
4000 0.08 10000 0.28
6000 0.19 14000 0.56
8000 0.35 17000 0.75
20 50-55
9000 0.44 20000 1.15
10000 0.55 24000 1.66
12000 0.79 28000 2.26
5000 0.13 12000 0.31
6000 0.19 16000 0.56
7500 0.30 20000 0.88
60
25 10000 0.55 24000 1.27
11000 0.67 28000 1.73
12500 0.85 30000 1.99
14000 1.08 12000 0.31
6000 0.19 16000 0.56
9000 0.44 20000 0.88
12000 0.79 22000 1.05
30
14000 1.08 70 24000 1.27
15000 1.20 26000 1.47
17000 1.60 28000 1.73
8000 0.18 31000 -
10000 0.28 33000 -
12000 0.41 12000 0.31
40 16000 0.73 16000 0.56
17000 0.82 20000 0.88
20000 1.15 22000 1.05
22000 1.39 75 24000 1.27
26000 1.47
28000 1.73
Notes: 31000 -
1 Exhaust damper drop is only added when return fan is ordered.
2 Use return cfm for exhaust damper drop add on return fan 33000 -
selections.

Fan Drive Selections

Table 57. FC supply air fan drive selections — 20 to 75 ton
3 Hp 5 Hp 7½ Hp 10 Hp 15 Hp 20 Hp 25 Hp 30 Hp 40 Hp 50 Hp
Nominal Drive Drive Drive Drive Drive Drive Drive Drive Drive Drive
Tons RPM No RPM No RPM No RPM No RPM No RPM No RPM No RPM No RPM No RPM No
500 5 700 7 900 9 1100 B 1200 C 1400 E
600 6 800 8 1000 A 1200 C 1300 D 1500 F
20 700 7 900 9 1100 B 1300 D 1400 E 1600 G
800 8 1000 A 1200 C 1400 E 1500 F 1700 H
900 9 1100 B 1300 D 1600 G

108 RT-PRC036T-EN
 Performance Data

Table 57. FC supply air fan drive selections — 20 to 75 ton (continued)

3 Hp 5 Hp 7½ Hp 10 Hp 15 Hp 20 Hp 25 Hp 30 Hp 40 Hp 50 Hp
Nominal Drive Drive Drive Drive Drive Drive Drive Drive Drive Drive
Tons RPM No RPM No RPM No RPM No RPM No RPM No RPM No RPM No RPM No RPM No
500 5 700 7 800 8 1000 A 1200 C 1400 E
600 6 800 8 900 9 1100 B 1300 D 1500 F
700 7 900 9 1000 A 1200 C 1400 E 1600 G
25
800 8 1000 A 1100 B 1300 D 1500 F 1700 H
900 9 1100 B 1200 C 1400 E 1600 G
1300 D
600 6 700 7 800 8 900 9 1100 B
700 7 800 8 900 9 1000 A 1200 C
30 800 8 900 9 1000 A 1100 B 1300 D
900 9 1000 A 1100 B 1200 C 1400 E
1300 D
500 5 700 7 800 8 900 9 1000 A 1000 A
600 6 800 8 900 9 1000 A 1100 B 1100 B
40
700 7 900 9 1000 A 1100 B
800 8
500 5 600 6 700 7 800 8 900 9 1000 A
50-55 600 6 700 7 800 8 900 9 1000 A 1100 B
700 7 800 8 900 9 1000 A 1100 B
800 8 900 9 1000 A 1100 B
400 4 500 5 600 6 700 7 800 8 900 9 1000 A
60, 70, 500 5 600 6 700 7 800 8 900 9 1000 A 1100 B
75 600 6 700 7 800 8 900 9 1000 A 1100 B
700 7 800 8 900 9 1000 A

Table 58. 80%, 100% and 120% wheel width DDP supply air fan speed ranges - 20 to 75 ton

DDP Fan Speed Range (RPM)

Nominal Wheel
Tons Width 3 HP 5 HP 7.5 HP 10 HP 15 HP 20 HP 25 HP 30 HP 40 HP 50 HP
80% 1000-1500 1000-1700 1000-2000 1700-2200 1700-2400 1700-2400
20 & 25
120% 1000-1300 1000-1500 1000-1800 1000-1900 1700-2200 1700-2400
80% 1000-1200 1000-1500 1000-1700 1000-1900 1700-2100 1700-2200
30
120% 1000-1100 1000-1300 1000-1500 1000-1600 1700-1900 1700-2100
80% 1000 1000-1200 1000-1400 1000-1600 1000-1800 1700-2000 1700-2000
40
120% 1000-1100 1000-1300 1000-1400 1000-1600 1700-1800 1700-1800
80% 1000 1000-1200 1000-1300 1000-1500 1700 1700-1800 1700-1800
50-55
100% 1700-1800
120% 1000 1000-1200 1000-1300 1400-1500 1700
80% 1000-1500 1000-1700 1000-1900 1700-2100 1700-2200
60
120% 1000-1300 1000-1500 1000-1600 1700-1900 1700-2100
80% 1000-1200 1000-1400 1000-1600 1000-1800 1700-2000 1700-2000
70 & 75
120% 1000-1100 1000-1300 1000-1400 1000-1600 1700-1800 1700-1900
Note: Some rpms will not allow bypass. Please check TOPSS™ on all applications.

RT-PRC036T-EN 109
Performance Data

Table 59. Air-cooled supply air fan drive selections — 90 to 130 ton
15 Hp 20 Hp 25 Hp 30 Hp 40 Hp
RPM Drive No. Drive No. Drive No. Drive No. Drive No.
1000 A A
1100 B B B
1200 C C C C
1300 D D D D
1400 E E E
1500 F F F
1600 G G

Table 60. Modulating 100% exhaust fan performance — 20 to 75 tons

Negative Static Pressure

CFM
0.250 0.500 0.750 1.000 1.250 1.500 1.750 2.000
Nominal Std
Tons Air RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
4000 379 0.34 515 0.70 622 1.12 712 1.59 791 2.10 861 2.64
6000 421 0.61 541 1.03 643 1.52 732 2.07 811 2.66
20
8000 487 1.10 583 1.56 674 2.11 757 2.72
10000 567 1.88 643 2.37 719 2.96
4000 379 0.34 515 0.70 622 1.12 712 1.59 791 2.10 861 2.64 927 3.22 988 3.84
6000 421 0.61 541 1.03 643 1.52 732 2.07 811 2.66 882 3.28 948 3.94 1010 4.64
25 8000 487 1.10 583 1.56 674 2.11 757 2.72 834 3.38 904 4.09 970 4.82
10000 567 1.88 643 2.37 719 2.96 794 3.63 864 4.35
12000 651 2.98 716 3.56 779 4.18 843 4.88
4000 379 0.34 515 0.70 622 1.12 712 1.59 791 2.10 861 2.64 927 3.22 988 3.84
6000 421 0.61 541 1.03 643 1.52 732 2.07 811 2.66 882 3.28 948 3.94 1010 4.64
8000 487 1.10 583 1.56 674 2.11 757 2.72 834 3.38 904 4.09 970 4.82 1030 5.59
30
10000 567 1.88 643 2.37 719 2.96 794 3.63 864 4.35 931 5.11 993 5.91 1053 6.77
12000 651 2.98 716 3.56 779 4.18 843 4.88 905 5.64 967 6.47 1026 7.34
14000 736 4.47 796 5.17 850 5.83 904 6.57 960 7.38
7500 318 0.67 444 1.21 545 1.85 629 2.54 702 3.27 767 4.02 828 4.83 884 5.66
9000 331 0.97 444 1.47 543 2.17 628 2.94 702 3.75 770 4.60 831 5.48 887 6.37
40 12000 381 2.13 460 2.40 546 3.04 627 3.89 701 4.83 769 5.82 831 6.87 889 7.93
14000 422 3.40 486 3.49 557 3.98 631 4.76 701 5.72 768 6.78 830 7.90 888 9.07
16000 468 5.12 520 5.07 579 5.37 643 6.01 707 6.88 769 7.92 829 9.08 887 10.32
9000 331 0.97 444 1.47 543 2.17 628 2.94 702 3.75 770 4.60 831 5.48 887 6.37
12000 381 2.13 460 2.40 546 3.04 627 3.89 701 4.83 769 5.82 831 6.87 889 7.93
50-55 15000 445 4.20 502 4.21 567 4.61 636 5.32 704 6.26 769 7.32 830 8.47 888 9.67
18000 516 7.41 559 7.19 609 7.32 662 7.76 719 8.49 776 9.44 833 10.56 887 11.79
20000 566 10.31 602 9.91 644 9.88 690 10.15 739 10.69 789 11.48 841 12.48 893 13.68
12000 351 1.49 423 2.09 502 3.00 572 4.02 634 5.07 690 6.09 740 7.04 784 7.91
15000 412 2.68 460 3.15 521 3.96 585 5.02 646 6.24 702 7.53 749 8.83 801 10.14
60, 70 & 18000 478 4.41 516 4.88 557 5.54 607 6.49 662 7.66 715 9.01 766 10.48 814 12.01
75
21000 549 6.75 578 7.36 612 7.92 647 8.71 688 9.77 735 11.03 781 12.46 827 14.03
24000 617 9.83 644 10.59 672 11.22 702 11.88 732 12.77 766 13.89 805 15.22 846 16.72
27000 688 15.11 711 15.09 736 15.45 761 16.18 788 17.02 815 17.92 844 18.99 876 20.31

110 RT-PRC036T-EN
 Performance Data

Table 61. Air-cooled modulating 100% exhaust fan performance — 90 to 130 ton
Negative Static Pressure
CFM 0.250 0.500 0.750 1.000 1.250 1.500 1.750 2.000 2.250 2.500
Nominal Std
Tons Air RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
28000 495 12.81 519 13.30 547 13.93 582 15.27 619 17.14 655 18.85 689 20.51 721 22.51 750 24.43 777 26.28
30000 527 15.67 550 16.22 573 16.71 604 17.84 637 19.53 672 21.63 705 23.38 737 25.16 768 27.31 795 29.37
32000 559 18.92 581 19.53 602 20.03 628 20.90 658 22.39 690 24.39 723 26.63 753 28.44 784 30.37 811 32.54
90-130 34000 591 22.60 612 23.28 632 23.84 653 24.48 681 25.74 710 27.55 739 29.75 771 32.16 799 34.04 828 36.04
36000 623 26.73 643 27.47 662 28.09 680 28.62 705 29.66 732 31.25 759 33.29 788 35.76 817 38.26 844 40.23
38000 656 31.34 675 32.14 693 32.83 710 33.42 730 34.17 755 35.51 780 37.38 806 39.60 834 42.26 861 44.90
40000 688 36.46 707 37.31 724 38.07 741 38.73 757 39.29 779 40.45 804 42.09 827 44.14 853 46.63 879 49.41
Notes:
1 Shaded areas indicate non-standard drive selections. These drive selections must be manually factory selected.
2 Refer to General Data Table for minimum and maximum Hp’s.

Table 62. 100% Exhaust fan drive selections — 20 to 75 ton

3 Hp 5 Hp 7½ Hp 10 Hp 15 Hp 20 Hp
Nominal Drive Drive Drive Drive Drive Drive
Tons RPM No RPM No RPM No RPM No RPM No RPM No
500 5
600 6
20 700 7
800 8
900 9
500 5 700 7
600 6 800 8
25 700 7 900 9
800 8 1000 A
900 9
500 5 700 7 800 8
600 6 800 8 900 9
30 700 7 900 9 1000 A
800 8 1000 A 1100 B
900 9
400 4 600 6 700 7
500 5 700 7 800 8
40 600 6 800 8
700 7
800 8
400 4 600 6 700 7 700 7
500 5 700 7 800 8 800 8
50 600 6 800 8 900 9
700 7
800 8
60 400 4 600 6 600 6 700 7 800 8
70 500 5 700 7 700 7 800 8
75 600 6

RT-PRC036T-EN 111
Performance Data

Table 63. Air-cooled 100% exhaust fan drive selections — 90 to 130 tons

15 HP 20 HP 25 HP 30 HP 40 HP
Nominal
Tons RPM Drive No RPM Drive No RPM Drive No RPM Drive No RPM Drive No
500 5 500 5 600 6 600 6 700 7
90-130 600 6 600 6 700 7 700 7 800 8
700 7 800 8 800 8

Table 64. 50% Exhaust fan performance — 20 to 75 tons

Negative Static Pressure (In. W.G.)

CFM
0.200 0.400 0.600 0.800 1.000 1.200 1.400
Nominal Std
Tons Air RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
2000 346 0.14 465 0.27 560 0.43 641 0.60 712 0.79 776 1.00 836 1.21
3000 397 0.27 495 0.42 583 0.61 662 0.81 731 1.03 795 1.27 854 1.51
20,
4000 469 0.51 546 0.68 621 0.88 691 1.11 757 1.36 818 1.62 876 1.90
25
5000 548 0.88 613 1.08 675 1.30 736 1.55 794 1.81 850 2.10 903 2.39
6000 630 1.40 690 1.66 742 1.90 793 2.16 844 2.45 894 2.75 943 3.06
2000 346 0.14 465 0.27 560 0.43 641 0.60 712 0.79 776 1.00 836 1.21
3000 397 0.27 495 0.42 583 0.61 662 0.81 731 1.03 795 1.27 854 1.51
4000 469 0.51 546 0.68 621 0.88 691 1.11 757 1.36 818 1.62 876 1.90
30
5000 548 0.88 613 1.08 675 1.30 736 1.55 794 1.81 850 2.10 903 2.39
6000 630 1.40 690 1.66 742 1.90 793 2.16 844 2.45 894 2.75 943 3.06
7000 714 2.10 769 2.42 818 2.72 862 3.00 906 3.29 950 3.61 993 3.95
3000 281 0.20 396 0.39 486 0.60 560 0.83 625 1.07 683 1.33 737 1.61
5000 326 0.55 404 0.73 485 0.99 559 1.29 627 1.61 687 1.94 741 2.28
40-55, 7000 411 1.35 459 1.51 513 1.74 571 2.04 629 2.39 686 2.77 740 3.18
9000 508 2.80 540 2.92 578 3.13 618 3.40 662 3.72 706 4.09 751 4.50
11000 609 5.05 633 5.16 661 5.34 691 5.58 723 5.87 756 6.21 792 6.59
4000 271 0.29 364 0.54 438 0.82 499 1.07 550 1.30 601 1.56 651 1.87
6000 339 0.71 391 0.90 456 1.22 517 1.60 572 2.01 622 2.43 668 2.85
60, 8000 425 1.55 460 1.73 497 1.96 542 2.30 591 2.72 639 3.20 684 3.73
70,
75 10000 517 2.88 543 3.13 571 3.34 600 3.59 632 3.94 649 4.37 707 4.87
12000 612 4.84 651 5.15 655 5.43 678 5.68 702 5.95 726 6.29 752 6.71
13000 659 6.09 679 6.44 699 6.76 720 7.04 741 7.31

Table 65. Air-cooled 50% exhaust fan performance — 90 to 130 tons

Negative Static Pressure (In. W.G.)
CFM
Nominal Std 0.250 0.500 0.750 1.000 1.250 1.500 1.750 2.000 2.250 2.500
Tons Air RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
12000 432 4.09 461 4.31 502 4.86 545 5.67 585 6.35 622 7.19 655 7.99 686 8.78 717 9.57 748 10.48
14000 495 6.40 519 6.65 547 6.96 582 7.64 619 8.57 655 9.42 689 10.26 721 11.26 750 12.21 777 13.14
90-130 16000 559 9.46 581 9.77 602 10.02 628 10.45 658 11.20 690 12.19 723 13.32 753 14.22 784 15.18 811 16.27
18000 623 13.36 643 13.73 662 14.05 680 14.31 705 14.83 732 15.63 759 16.65 788 17.88 817 19.13 844 20.12
20000 688 18.23 707 18.66 724 19.03 741 19.36 757 19.65 779 20.22 804 21.04 827 22.07 853 23.31 879 24.70
Note: Shaded areas indicate non-standard drive selections. These drive selections must be manually factory selected.

112 RT-PRC036T-EN
 Performance Data

Table 66. 50% Exhaust fan drive selections

Nominal 3 HP 5 HP 7½ HP 15 HP
Unit Size RPM Drive No RPM Drive No RPM Drive No RPM Drive No
500 5
600 6
20,
700 7
25
800 8
900 9
500 5 800 8
600 6 900 9
30 700 7 1000 A
800 8
900 9
500 5 600 6
40-55, 600 6 700 7
700 7
400 4 700 7
60,
70, 500 5
75
600 6
500 5
600 6
90-130
700 7
800 8

RT-PRC036T-EN 113
Performance Data

Table 67. Return fan performance—20, 25, 30 ton air-cooled (24.5" Fan)
CFM Return Fan Static Pressure Including Exhaust Damper P.D.
Std. 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00
Air RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
4000 557 0.29 638 0.48 710 0.68 776 0.89 838 1.10 899 1.32 969 1.60 1038 1.89
4500 605 0.36 682 0.57 749 0.79 811 1.02 869 1.25 926 1.49 980 1.73 1033 1.99
5000 654 0.44 727 0.67 790 0.91 850 1.16 905 1.41 957 1.67 1007 1.93 1057 2.20
5500 704 0.53 773 0.79 834 1.04 889 1.30 943 1.58 992 1.86 1040 2.15 1087 2.44
6000 756 0.64 821 0.92 879 1.20 932 1.47 982 1.77 1030 2.06 1076 2.38 1121 2.70
6500 808 0.76 868 1.06 925 1.36 976 1.66 1024 1.97 1070 2.29 1114 2.61 1157 2.95
7000 861 0.90 917 1.21 972 1.55 1021 1.87 1067 2.19 1112 2.53 1154 2.87 1195 3.22
7500 913 1.06 968 1.39 1019 1.74 1068 2.10 1112 2.44 1155 2.79 1196 3.15 1235 3.51
8000 967 1.24 1019 1.58 1068 1.96 1115 2.34 1158 2.71 1199 3.08 1238 3.45 1277 3.84
8500 1021 1.44 1071 1.80 1116 2.19 1162 2.60 1204 3.00 1244 3.39 1283 3.79 1320 4.19
9000 1075 1.67 1123 2.04 1166 2.45 1210 2.88 1252 3.30 1290 3.72 1327 4.14 1363 4.56
9500 1130 1.92 1175 2.31 1217 2.73 1258 3.17 1299 3.62 1337 4.07 1373 4.52 1408 4.96
10000 1186 2.20 1228 2.60 1269 3.04 1307 3.50 1347 3.97 1384 4.45 1419 4.91 1454 5.38
10500 1241 2.50 1280 2.92 1321 3.37 1357 3.85 1395 4.34 1432 4.85 1466 5.33 1500 5.84
11000 1297 2.84 1334 3.27 1373 3.74 1409 4.23 1443 4.74 1480 5.26 1515 5.79 1546 6.29
11500 1353 3.20 1387 3.64 1425 4.13 1460 4.64 1493 5.16 1528 5.71 1561 6.25 1594 6.79
12000 1408 3.60 1441 4.06 1477 4.56 1512 5.08 1544 5.62 1576 6.18 1610 6.75 1642 7.32
12500 1464 4.03 1496 4.50 1530 5.01 1565 5.56 1596 6.11 1626 6.68 1658 7.28 1689 7.87
13000 1520 4.49 1551 4.98 1583 5.51 1617 6.06 1648 6.64 1677 7.22 1707 7.84 1737 8.44
13500 1576 4.99 1606 5.50 1636 6.03 1669 6.60 1700 7.20 1728 7.80 1756 8.42 1785 9.06
14000 1633 5.52 1661 6.05 1690 6.60 1721 7.19 1752 7.79 1780 8.42 1807 9.05 1834 9.70
Notes:
1 Max fan RPM 1715 for 24.5" Class I Fan
2 Max motors Available are as follows: 20T: 3HP, 25T; 5HP, 30T: 7.5 HP
3 Max CFM available is as follows; 20T: 9000, 25T: 11000, & 30T: 13500
4 Min CFM is 4000 for 20T, 25T, & 30T
5 Return fan belt drive RPM selections will be available to cover 500-1600 RPM range +/- 50 RPM
6 Performance data includes cabinet and rain hood effect. Damper pressure drop must be added to the return duct static per Table 56, p. 108
7 Outlined area indicates nonstandard BHP or RPM selections. Contact a local Trane® representative for more information.

114 RT-PRC036T-EN
 Performance Data

Table 68. Return fan performance—40, 50 and 55 ton air-cooled (27" Fan)
CFM Return Fan Static Pressure Including Exhaust Damper P.D.
Std. 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00
Air RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
7500 709 0.82 766 1.16 815 1.50 861 1.85 906 2.22 949 2.60 991 2.99 1033 3.39
8000 748 0.95 803 1.31 851 1.67 895 2.04 938 2.43 979 2.82 1018 3.22 1058 3.64
8500 788 1.09 840 1.47 887 1.86 930 2.24 971 2.64 1010 3.05 1049 3.48 1087 3.92
9000 827 1.24 878 1.64 924 2.05 965 2.46 1005 2.88 1043 3.31 1080 3.75 1115 4.19
9500 867 1.41 916 1.83 961 2.27 1001 2.70 1040 3.14 1076 3.58 1112 4.03 1146 4.50
10000 908 1.60 955 2.04 999 2.50 1038 2.95 1075 3.41 1111 3.88 1145 4.34 1179 4.83
10500 948 1.81 994 2.27 1036 2.75 1075 3.23 1111 3.70 1145 4.18 1179 4.68 1212 5.18
11000 989 2.04 1033 2.51 1074 3.01 1112 3.51 1147 4.01 1181 4.51 1213 5.02 1245 5.53
11500 1030 2.28 1072 2.78 1112 3.29 1149 3.82 1184 4.33 1216 4.86 1248 5.38 1279 5.92
12000 1071 2.55 1112 3.06 1151 3.59 1187 4.14 1221 4.69 1253 5.24 1284 5.78 1314 6.33
12500 1112 2.83 1152 3.37 1189 3.92 1225 4.48 1258 5.06 1290 5.62 1320 6.19 1349 6.76
13000 1153 3.14 1192 3.70 1228 4.27 1263 4.86 1296 5.45 1327 6.04 1356 6.63 1385 7.23
13500 1194 3.47 1232 4.05 1267 4.63 1301 5.24 1333 5.85 1364 6.47 1393 7.08 1421 7.70
14000 1236 3.83 1272 4.42 1307 5.03 1340 5.66 1371 6.29 1401 6.94 1430 7.57 1457 8.20
14500 1277 4.21 1313 4.82 1346 5.45 1379 6.10 1410 6.75 1439 7.42 1467 8.08 1494 8.73
15000 1319 4.62 1353 5.25 1386 5.90 1417 6.55 1448 7.23 1477 7.92 1504 8.61 1531 9.29
15500 1361 5.05 1394 5.71 1426 6.37 1457 7.05 1486 7.74 1514 8.44 1542 9.16 1569 9.87
16000 1402 5.51 1435 6.18 1466 6.87 1496 7.57 1525 8.28 1553 9.01 1580 9.74 1606 10.47
16500 1444 6.00 1476 6.69 1506 7.40 1535 8.12 1564 8.85 1591 9.58 1617 10.34 1643 11.10
17000 1486 6.52 1517 7.23 1547 7.96 1575 8.70 1603 9.44 1629 10.20 1655 10.97 1681 11.75
17500 1528 7.07 1558 7.80 1587 8.55 1615 9.30 1642 10.07 1668 10.85 1694 11.64 1718 12.43
18000 1570 7.65 1599 8.40 1627 9.17 1655 9.94 1681 10.73 1707 11.53 1732 12.33 1757 13.15
18500 1612 8.26 1640 9.03 1668 9.81 1695 10.62 1721 11.43 1746 12.23 1771 13.07 1794 13.89
19000 1654 8.91 1682 9.70 1709 10.50 1735 11.31 1760 12.14 1785 12.97 1809 13.82 1833 14.67
19500 1696 9.59 1723 10.40 1749 11.22 1775 12.06 1800 12.90 1825 13.76 1848 14.62 1872 15.50
20000 1738 10.30 1765 11.13 1790 11.97 1816 12.83 1840 13.69 1864 14.56 1888 15.46 1910 16.34
20500 1780 11.05 1806 11.90 1831 12.76 1856 13.63 1880 14.52 1903 15.41 1926 16.31 1949 17.22
21000 1822 11.84 1848 12.71 1872 13.59 1897 14.48 1920 15.39 1943 16.29 1966 17.23 1988 18.14
21500 1864 12.66 1889 13.55 1914 14.45 1937 15.36 1960 16.29 1983 17.22 2005 18.16 2027 19.11
22000 1899 13.05 1926 14.11 1952 15.16 1977 16.20 2001 17.23 2024 18.24 2047 19.27 2069 20.28
22500 1941 13.91 1967 14.98 1992 16.05 2017 17.12 2041 18.19 2064 19.23 2086 20.27 2108 21.31
Notes:
1 Max fan RPM 1981 For 27" Class II Fan
2 Max Motor Available 15 HP For 27" Fan Size
3 Max motors Available are as follows: 40T: 10 HP & 50-55T: 15 HP
4 Max CFM is as follows: 40T: 18000, 50-55T: 22500
5 Min CFM is as follows: 40T: 7500, 50-55T: 9000
6 Return fan belt drive RPM selections will be available to cover 700-1900 RPM range +/- 50 RPM
7 Performance data includes cabinet and rain hood effect. Damper pressure drop will have to be added to the return duct static per Table 56, p. 108
8 Outlined area indicates nonstandard BHP or RPM selections. Contact a local Trane® representative for more information.

RT-PRC036T-EN 115
Performance Data

Table 69. Return fan performance—60 to 75 tons air-cooled (36.5" fan)

CFM Return Fan Static Pressure Including Exhaust Damper P.D.
Std. 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00
Air RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
12000 459 1.07 502 1.59 541 2.13 578 2.71 613 3.31 647 3.91 681 4.54 713 5.20
13000 490 1.27 530 1.83 567 2.40 603 3.01 636 3.65 668 4.29 700 4.94 731 5.64
14000 520 1.49 560 2.09 595 2.70 628 3.34 660 3.99 691 4.69 721 5.38 751 6.10
15000 552 1.73 590 2.38 623 3.03 655 3.70 686 4.39 715 5.11 744 5.85 771 6.59
16000 583 2.00 619 2.70 652 3.39 682 4.09 712 4.82 740 5.57 767 6.34 794 7.14
17000 615 2.30 650 3.05 681 3.78 710 4.52 739 5.28 766 6.06 792 6.85 818 7.67
18000 646 2.64 680 3.43 711 4.20 739 4.98 766 5.78 792 6.60 817 7.41 842 8.27
19000 678 3.01 711 3.85 741 4.67 768 5.48 794 6.31 819 7.16 844 8.03 867 8.89
20000 711 3.42 742 4.30 771 5.17 797 6.02 823 6.90 847 7.77 871 8.66 894 9.59
21000 743 3.87 773 4.78 801 5.70 827 6.60 852 7.51 875 8.41 898 9.36 920 10.30
22000 775 4.36 805 5.31 832 6.28 857 7.22 881 8.17 904 9.11 926 10.09 947 11.06
23000 808 4.89 836 5.88 863 6.90 887 7.89 911 8.88 933 9.87 954 10.86 975 11.88
24000 840 5.46 868 6.49 894 7.56 918 8.60 941 9.63 962 10.67 983 11.71 1004 12.75
25000 873 6.08 900 7.15 925 8.26 948 9.35 970 10.42 992 11.49 1012 12.59 1032 13.67
26000 906 6.75 931 7.86 956 9.00 979 10.16 1001 11.28 1021 12.37 1041 13.49 1061 14.63
27000 939 7.47 963 8.62 987 9.79 1010 11.01 1031 12.18 1052 13.33 1071 14.47 1090 15.65
Notes:
1 Max fan RPM 1151 for 36.5" Class I Fan
2 Max motor available 20 HP for 36.5" fan size
3 Max motor available 20 HP for 60, 70 & 75T
4 Max CFM is 27000 for 60, 70 & 75T
5 Min CFM is 12000 for 60, 70 & 75T
6 Return fan belt drive RPM selections will be available to cover 500-1100 RPM range +/- 50 RPM
7 Performance data includes cabinet and rain hood effect. Damper pressure drop will have to be added to the return duct static per table Table 56,
p. 108

116 RT-PRC036T-EN
 Performance Data

Table 70. 100% return fan drive selections — 20 to 75 tons air-cooled

3 Hp 5 Hp 7½ Hp 10 Hp 15 Hp 20 Hp
Drive Drive Drive Drive Drive Drive
Nominal Tons RPM No. RPM No. RPM No. RPM No. RPM No. RPM No.
500 5
600 6
700 7
800 8
20 900 9
1000 A
1100 B
1200 C
1300 D
500 5 1100 B
600 6 1200 C
700 7 1300 D
800 8 1400 E
25 900 9 1500 F
1000 A 1600 G
1100 B
1200 C
1300 D
500 5 1100 B 1400 E
600 6 1200 C 1500 F
700 7 1300 D 1600 G
800 8 1400 E
30 900 9 1500 F
1000 A 1600 G
1100 B
1200 C
1300 D
700 7 1200 C 1400 E
800 8 1300 D 1500 F
900 9 1400 E 1600 G
40 1000 A 1500 F 1700 H
1100 B
1200 C
1300 D
700 7 1200 C 1400 E 1600 G
800 8 1300 D 1500 F 1700 H
900 9 1400 E 1600 G 1800 J
50-55 1000 A 1500 F 1700 H 1900 K
1100 B
1200 C
1300 D
500 5 700 7 800 8 900 9 1100 B
600 6 800 8 900 9 1000 A
60
700 7 900 9 1000 A 1100 B
800 8
500 5 700 7 800 8 900 9 1100 B
600 6 800 8 900 9 1000 A
70, 75
700 7 900 9 1000 A 1100 B
800 8

RT-PRC036T-EN 117
Controls
Rapid Restart (RR) Only
The IntelliPak™ controls platform will support rapid restart unit startup after every power cycle
occurs. There will be no assumptions about how long the unit has been OFF, so the unit will perform
the same startup sequence with each occurrence.
The following is a list of the control operations:
• This is a cooling only function and will not function with heating.
• RR will target a four-minute maximum time from start signal to 100% cooling with an upper limit
of five minutes.
• Outside air temperatures relative to the Low Ambient Lockout Setpoint will determine whether
economizer cooling or DX staging will be the primary source for cooling.
• The use of economizing below low ambient lockout (typically 50°F) during the RR function will
be a selectable option on the HI.
• Until the RR termination conditions are met, the unit will ramp the outside air damper open, if
under economizer operation. Until the RR termination conditions are met, the unit will stage DX
mechanical cooling, if available, at six second intervals.
• Supply fan capacity will increase accordingly:
• CV & SZVAV: Supply fan operation at full airflow will be utilized.
• VAV: Once the supply fan proving switch is closed, the supply fan speed will ramp to 50%
command, then control to normal discharge static pressure control limited by the high duct
static limit.
• Building pressure will always be in control.
• The unit will indicate via local HI and remote BAS that the RR event is active.
• Valid RR temperature sensor or return air temperature sensor is required to determine
initialization and deactivation of RR relative to RR critical temperature setpoint. If this sensor
fails, the unit will terminate RR when the discharge temperature sensor indicates a value below
the active SA cooling setpoint – ½ deadband.
• Limit OA humidity infiltration to humidity greater than 20% RH.

Variable Air Volume (VAV) Only

Note: When noted in this sequence “human interface panel,” the reference is to both the unit-
mounted and remote-mounted human interface panel. All setpoint adjustments can be
accomplished at the unit or remote human interface panel.

Supply Air Pressure Control

VFD Control
Variable frequency drives are driven by a modulating 0-10 VDC signal
from the rooftop module (RTM). A pressure transducer measures duct
static pressure, and the VFD is modulated to maintain the supply air static
pressure within an adjustable user-defined range. The range is
determined by the supply air pressure setpoint and supply air pressure
deadband, which are set through the human interface panel. Variable
frequency drives provide supply fan motor speed modulation. The drive
will accelerate or decelerate as required to maintain the supply static
pressure setpoint.
When subjected to high ambient return conditions the VFD shall reduce its
output frequency to maintain operation. Bypass control is offered to
provide full nominal airflow in the event of drive failure.

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Supply Air Static Pressure Limit

The opening of the VAV boxes are coordinated during unit startup and transition to/from Occupied/
Unoccupied modes to prevent over pressurization of the supply air ductwork. However, if for any
reason the supply air pressure exceeds the user-defined supply air static pressure limit that was set
at the human interface panel, the supply fan/VFD is shut down. The unit is then allowed to restart
three times. If the over pressurization condition occurs on the third time, the unit is shut down and
a manual reset diagnostic is set and displayed at the human interface panel.

Supply Air Temperature Controls

Cooling/Economizer
During Occupied cooling mode of operation, the economizer (if available) and mechanical cooling
are used to control the supply air temperature. The supply air temperature setpoint and deadband
are user-defined at the human interface panel. If the enthalpy of the outside air is appropriate to
use “free cooling,” the economizer will be used first to attempt to satisfy the supply air setpoint;
then if required the mechanical cooling will be staged on to maintain supply air temperature
setpoint. Minimum On/Off timing of the mechanical cooling prevents rapid cycling.
On units with economizer, a call for cooling will modulate the fresh air dampers open. The rate of
economizer modulation is based on deviation of the discharge temperature from setpoint, i.e., the
further away from setpoint, the faster the fresh air damper will open. First stage of cooling will be
allowed to start after the economizer reaches full open.
Note that the economizer is only allowed to function freely if one of the following conditions is met.
• For dry bulb economizer control the ambient temperature must be below the dry bulb
temperature control setting.
• For reference enthalpy economizer control, outdoor air enthalpy must be below the enthalpy
control setting.
• For comparative enthalpy economizer control, outdoor air enthalpy must be below the enthalpy
of the return air. At outdoor air conditions above the enthalpy control setting, mechanical
cooling only is used and the fresh air dampers remain at minimum position.
If the unit does not include an economizer, mechanical cooling only is used to satisfy cooling
requirements. Outdoor air dampers may be set manually for a maximum of 25 percent outdoor air,
if rooftop is equipped with 0 to 25 percent manual fresh air damper.

Heating: Hot Water or Steam

On units with hot water or steam heating, the supply air temperature can be controlled to a heating
set point during the Occupied mode. The supply air temperature heating set point and deadband
are user-defined at the human interface panel. Discharge Temperature Control occupied heating on
hot water and steam heat units is enabled by closing a field-supplied switch or contacts connected
to a changeover input on the RTM.

Heating: Modulating Gas

Upon a call for heating, the Heat module closes the heating contacts, beginning the firing sequence.
First, the heat exchanger combustion blower begins operation. Upon positive proving of
combustion airflow, a pre-purge cycle is executed. Then the ignition sequence takes place.
If ignition is not proven, the safety control locks out and must be manually reset. As long as there
is a call for heat, the safety control can be reset, which starts another purge cycle and try for ignition.
Once ignited, as additional heat is required, the combustion air damper opens, increasing the firing
rate. During heating operation, an electronic flame safety control provides continuous flame
supervision. If combustion should become unstable for any reason, heating will automatically shut
down and be blocked out until reset at the unit mounted Human Interface panel.
As the heating requirement is satisfied, the Heat module will modulate the combustion air damper

RT-PRC036T-EN 119
Controls

closed, and the firing rate will lower to maintain the desired outlet temperature. When the
requirement is fully satisfied, the heating contacts are opened, de-energizing the heat. The specific
sequence of operation of the gas heat will depend on the size of the heat exchanger.

Supply Air Setpoint Reset

Supply air reset can be used to adjust the supply air temperature setpoint on the basis of a zone
temperature or on outdoor air temperature. Supply air reset adjustment is available from the
human interface panel for supply air heating and supply air cooling control.
A - reset based on outdoor air temperature. Outdoor air cooling reset is sometimes used in
applications where the outdoor temperature has a large effect on building load. When the outside
air temperature is low and the building cooling load is low, the supply air setpoint can be raised,
thereby preventing subcooling of critical zones. This reset can lower usage of mechanical cooling,
thus savings in compressor kW, but an increase in supply fan kW may occur.
Outdoor air heating reset is the inverse of cooling, with the same principles applied. For both
outdoor air cooling reset and heating reset, there are three user defined parameters that are
adjustable through the human interface panel:
- Beginning reset temperature
- Ending reset temperature
- Maximum amount of temperature reset
B - reset based on zone temperature. Zone reset is applied to the zone(s) in a building that
tend to overcool or overheat. The supply air temperature setpoint is adjusted based on the
temperature of the critical zone(s). This can have the effect of improving comfort and/or lowering
energy usage. The user-defined parameters are the same as for outdoor air reset.

Zone Temperature Control

Unoccupied Zone Heating and Cooling
During Unoccupied mode, the unit is operated as a CV unit. VAV boxes are driven full open. The
unit controls zone temperature within the Unoccupied zone cooling and heating (heating units
only) deadbands.

Daytime Warm-up
This feature is available on all types of heating units. During Occupied mode, if the zone
temperature falls to a preset, user-defined zone low limit temperature setpoint the unit is put into
Unoccupied mode and Daytime Warm-up is initiated. The system changes over to CV zone
temperature control heating (full unit airflow), the VAV boxes are fully opened and full heating
capacity is provided until the Daytime Warm-up setpoint is reached. The unit is then returned to
normal Occupied mode.

Outdoor Air CFM Compensation

The purpose of this feature is to modulate the minimum position of the economizer to compensate
for varying unit airflows in VAV units, thereby minimizing the large variation of outdoor air CFM
that can occur. The feature allows the user to set (calibrate) the economizer minimum position with
the VFD at 0 percent and at 100 percent. On units with VFD and economizer, the minimum position
of the economizer is modulated based on VFD speed.

Single Zone Variable Air Volume (SZVAV) Only

The IntelliPak™ controls platform will support Single Zone VAV as an optional unit control type in
order to meet ASHRAE 90.1. The basic control will be a hybrid VAV/CV configured unit that provides
discharge temperature control to a varying discharge air temperature target setpoint based on the
space temperature and/or humidity conditions. Concurrently, the unit will control and optimize the
supply fan speed to maintain the zone temperature to a zone temperature setpoint.

120 RT-PRC036T-EN
 Controls

Supply Fan Output Control

Units configured for Single Zone VAV control will utilize the same supply fan output control scheme
as on traditional VAV units except the VFD signal will be based on zone heating and cooling demand
instead of the supply air pressure.

VFD Control
Single Zone VAV units will be equipped with a VFD-controlled supply fan which will be controlled
via a 0-10VDC signal from the Rooftop Module (RTM). With the RTM supply fan output energized
and the RTM VFD output at 0 VDC, the fan speed output is 37% (22Hz) from the VFD by default; and
at 10 VDC the fan speed output is 100% (60Hz). The control scales the 0-10 VDC VFD output from
the RTM linearly to control between the 37-100% range. The VFD will modulate the supply fan
motor speed, accelerating or decelerating as required to maintain the zone temperature to the zone
temperature setpoint. When subjected to high ambient return conditions the VFD will reduce its
output frequency to maintain operation. Bypass control is offered to provide full nominal airflow
in the event of drive failure.

Ventilation Control
Units configured for Single Zone VAV control will require special handling of the OA Damper
Minimum Position control in order to compensate for the non-linearity of airflow associated with
the variable supply fan speed and damper combinations. Units configured for Traq™ with or
without DCV will operate identically to traditional units with no control changes.

Space Pressure Control

For units configured with Space Pressure Control with or without Statitrac, the new schemes
implemented for economizer minimum position handling require changes to the existing Space
Pressure Control scheme in order to prevent over/under pressurization. The overall scheme will
remain very similar to VAV units with Space Pressure Control with the exception of the dynamic
Exhaust Enable Setpoint.
For SZVAV an Exhaust Enable Setpoint must be selected during the 100% Fan Speed Command.
Once selected, the difference between the Exhaust Enable Setpoint and Design OA Damper
Minimum Position at 100% Fan Speed Command will be calculated. The difference calculated will
be used as an offset and added to the Active Building Design OA Minimum Position Target in order
to calculate the dynamic Exhaust Enable Target, which will be used throughout the Supply Fan
Speed/OA Damper Position range.
The Exhaust Enable Target could be above or below the Active Building Design OA Minimum
Position Target Setpoint, based on the Active Exhaust Enable Setpoint being set above or below
the Building Design Minimum Position at 100% Fan Speed Command. Note that an Exhaust Enable
Setpoint of 0% will result in the same effect on Exhaust Fan control as on VAV applications with and
without Statitrac.

Occupied Cooling Operation

For normal cooling operation, cooling capacity will be staged or modulated in order to meet the
calculated discharge air target setpoint. If the current active cooling capacity is controlling the
discharge air within the deadband, no additional cooling capacity change will be requested. As the
Discharge Air Temperature rises above the deadband, the algorithm will request additional
capacity as required (additional compressors or economizer). As the Discharge Air Temperature
falls below the deadband, the algorithm will request a reduction in active capacity.

Default Economizer Operation

By default, the unit will be setup to optimize the minimum supply fan speed capability during
Economizer Only operation. If the economizer is able to meet the demand alone, due to desirable
ambient conditions, the supply fan speed will be allowed to increase above the minimum prior to

RT-PRC036T-EN 121
Controls

utilizing mechanical cooling if discharge air setpoint falls below the discharge air Lower Limit
(Cooling) setpoint

Unoccupied Mode
In Unoccupied mode the unit will utilize setback setpoints, 0% Minimum OA Damper position, and
Auto Fan Mode operation as on normal CV units. The Supply Fan speed, and cooling and
modulating types of heat, will be controlled to the discharge air target setpoint as is done during
occupied periods. The Supply fan speed during staged heat control will be forced to 100% as on
normal CV units.

Occupied Heating Operation

Occupied heating operation has two separate control sequences; staged and modulated. All
Staged Heating types will drive the supply fan to maximum flow and stage heating to control to
the Zone Heating Setpoint. For units with Hydronic and Gas heat, Modulated Heating type will
utilize SZVAV Heating.
On an initial call for heating, the supply fan will drive to the minimum heating airflow. On an
additional call for heating, the heat will control in order to meet the calculated discharge air target
setpoint. As the load in the zone continues to request heat operation, the supply fan will ramp-up
while the control maintains the heating discharge air temperature. Heating can be configured for
either the energy saving SZVAV Heating solution as described above, or the traditional, less
efficient CV Heating solution.

Compressor (DX) Cooling

Compressor control and protection schemes will function identical to that of a traditional unit.
Normal compressor proving and disable input monitoring will remain in effect as well as normal
3-minute minimum on, off, and inter-stage timers. Also, all existing head pressure control schemes
will be in effect.

Cooling Sequence
If the control determines that there is a need for active cooling capacity in order to meet the
calculated discharge air target setpoint, once supply fan proving has been made, the unit will begin
to stage compressors accordingly. Note that the compressor staging order will be based on unit
configuration and compressor lead/lag status.
Once the discharge air target setpoint calculation has reached the Minimum Setpoint and
compressors are being utilized to meet the demand, as the discharge air target setpoint value
continues to calculate lower the algorithm will begin to ramp the supply fan speed up toward 100%.
Note that the supply fan speed will remain at the compressor stage’s associated minimum value
(as described below) until the discharge air target setpoint value is calculated below the discharge
air temperature Minimum Setpoint (limited discharge air target setpoint).
As the cooling load in the zone decreases the zone cooling algorithm will reduce the speed of the
fan down to minimum per compressor stage and control the compressors accordingly. As the
compressors begin to de-energize, the supply fan speed will fall back to the Cooling Stage’s
associated minimum fan speed, but not below. As the load in the zone continues to drop, cooling
capacity will be reduced in order to maintain the discharge air within the ± ½ discharge air target
deadband.

Constant Volume (CV) Only

Occupied Zone Temperature Control
Cooling/Economizer
During Occupied cooling mode, the economizer (if provided) and mechanical cooling are used to
control zone temperature. If the enthalpy of outside air is appropriate to use “free cooling,” the

122 RT-PRC036T-EN
 Controls

economizer will be used first to attempt to satisfy the cooling zone temperature setpoint; then the
compressors will be staged up as necessary. Minimum on/off timing of compressors prevents
rapid cycling.
On units with economizer, a call for cooling will modulate the fresh air dampers open. The rate of
economizer modulation is based on deviation of the zone temperature from setpoint, i.e., the
further away from setpoint, the faster the fresh air damper will open. First stage of cooling will be
allowed to start after the economizer reaches full open.
Note that the economizer is only allowed to function freely if one of the following conditions is met:
For dry bulb economizer control, the ambient temperature must be below the dry bulb temperature
control setting. For reference enthalpy economizer control, outdoor air enthalpy must be below the
enthalpy control setting. For comparative enthalpy economizer control, outdoor air enthalpy must
be below the enthalpy of the return air.
At outdoor air temperatures above the enthalpy control setting, mechanical cooling only is used
and the outdoor air dampers remain at minimum position. If the unit does not include an
economizer, mechanical cooling only is used to satisfy cooling requirements. Outdoor air dampers
may be set manually for a maximum of 25 percent outdoor air, if rooftop is equipped with 0 to 25
percent manual fresh air damper.

Heating
Gas Heating: Two-Stage
Upon a call for heating, the Heat module closes the first stage heating contacts beginning the firing
sequence. First, the heat exchanger combustion blower begins operation. Upon positive proving
of combustion airflow, a pre-purge cycle is executed. Then the ignition sequence takes place.
If ignition is not proven, the ignition transformer is de-energized. After a time delay another pre-
purge cycle takes place followed by another attempt to ignite. If ignition fails a second time, the
cycle repeats on 235 and 350 MBh modules. 500, 850 and 1000 MBh modules, the heating section
will be shut down and locked out until manually reset at the unit-mounted human interface panel.
As additional heat is required, the Heat module will close the second stage heating contacts and
depending on heat module size, will open either the second stage of the gas valve, or a second
stage gas valve.
During heating operation, an electronic flame safety control provides continuous flame
supervision. If combustion should become unstable for any reason, heating will automatically shut
down. After one minute, another 60 second pre-purge and ignition cycle begins.
As the heating requirement is satisfied, the Heat module will open the second stage heating relay,
de-energizing the second stage of heat. When the requirement is fully satisfied, the first stage
contacts are opened, de-energizing the first stage of heat. The specific sequence of operation of the
gas heat will depend on the size of the heat exchanger.

Gas Heating: Modulating Gas

Upon a call for heating, the Heat module closes the heating contacts, beginning the firing sequence.
First, the heat exchanger combustion blower begins operation. Upon positive proving of
combustion airflow, a pre-purge cycle is executed.Then the ignition sequence takes place.
If ignition is not proven, the safety control locks out and must be manually reset. As long as there
is a call for heat, the safety control can be reset, which starts another purge cycle and try for ignition.
Once ignited, as additional heat is required, the combustion air damper opens, increasing the firing
rate. During heating operation, an electronic flame safety control provides continuous flame
supervision. If combustion should become unstable for any reason, heating will automatically shut
down and be blocked out until reset at the unit mounted Human Interface panel.
As the heating requirement is satisfied, the Heat module will modulate the combustion air damper
closed, and the firing rate will lower to maintain the desired outlet temperature. When the

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requirement is fully satisfied, the heating contacts are opened, de-energizing the heat. The specific
sequence of operation of the gas heat will depend on the size of the heat exchanger.

Gas Heating: Ultra Modulating Gas

Upon a call for heating, the heat module closes the heating contact and sends a 10VDC signal to
the heat exchanger's combustion blower controller. Upon positive proving of combustion airflow,
the DC signal runs the heat exchanger's combustion blower at maximum speed, and the pre-purge
cycle is executed. After 30 seconds of pre-purge, the ignition sequence then takes place.
If ignition is not proven, the safety control locks out and must be manually reset. As long as there
is a call for heat, the burner controller can be reset, which starts another purge cycle and ignition
attempt. Once the heater has been ignited, the DC input drops to 2VDC and the blower goes to
minimum speed. Additional heat is provided through ramping of the DC signal/speed of the
combustion blower. During heating operation, the burner controller uses a flame sensor to provide
continuous flame supervision. If combustion should become unstable for any reason, heating will
automatically shut down and be blocked out until reset at the unit mounted Human Interface panel.
As the heating requirement is satisfied, the Heat module will modulate the combustion blower
slower to maintain the desired outlet temperature. When the heating requirement is fully satisfied,
the heating contact is opened, and the burner controller is de-energized. The specific sequence of
operation of the gas heather will depend on the size of the heat exchanger.

Electric Heating
The three stages of electric heat will be sequenced on the zone demand signal from the zone sensor.
The signal is sent to the Heat module and the stages are sequenced based on load demand.

Hot Water or Steam Heating

Upon a call for heat, the Heat module will send a varying voltage signal to the valve actuator. The
valve will modulate to meet building demand as indicated by the voltage signal. When heating is
satisfied, the valve will modulate closed.
A temperature sensor is located on the coldest section of the coil. When it senses an impending
freeze condition, a signal is sent to the hydronic valve to drive it full open. If the supply fan is on,
or if the outside air damper is open when this freezing condition is sensed, the supply fan is turned
off and the outside air damper is closed.

Auto Changeover
When the System Mode is “Auto,” the mode will change to cooling or heating as necessary to satisfy
the zone cooling and heating setpoints. The zone cooling and heating setpoints can be as close as
2°F apart.

Unoccupied Zone Temperature Control

Cooling and Heating
Cooling or heating modes can be selected to maintain Unoccupied zone temperature setpoints. For
Unoccupied periods, heating, economizer operation or compressor operation can be selectively
locked out at the human interface panels.

CV, SZVAV, and VAV

Note: SZVAV exceptions are noted in parenthesis

Space Pressure Control - Statitrac™

A pressure transducer is used to measure and report direct space (building) static pressure. The
user-defined control parameters used in this control scheme are space static pressure setpoint and
deadband. As the economizer opens, the building pressure rises and enables the exhaust/return

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fan and dampers or exhaust VFD. The exhaust/return dampers or VFD then modulate to maintain
space pressure within the deadband.

Morning Warm-up (Not applicable to SZVAV)

This feature is available on all types of factory-installed heat units and on units with no heat, this
function may still be selected to support systems with heat sources not provided by the rooftop
unit. At the conclusion of Unoccupied mode, while the economizer (if supplied) is kept closed, the
selected zone is heated to the user-defined Morning Warm-up setpoint. The unit is then released
to Occupied mode. There are two types of Morning Warm-up: full capacity or cycling capacity.

Full Capacity Morning Warm-up (MWU)

Full capacity Morning Warm-up uses full heating capacity, and heats the zone up as quickly as
possible. Full heating capacity is provided until the Morning Warm-up setpoint is met. At this point,
the unit is released to Daytime mode.

Cycling Capacity Morning Warm-up (MWU)

Cycling capacity Morning Warm-up provides a more gradual heating of the zone. Normal zone
temperature control with varying capacity is used to raise the zone temperature to the MWU zone
temperature setpoint. This method of warm-up is used to overcome the “building sink” effect.
Cycling capacity MWU will operate until MWU setpoint is reached or for 60 minutes, then the unit
switches to Occupied mode.
Note: When using the Morning Warmup option in a VAV heating/cooling rooftop, airflow must be
maintained through the rooftop unit. This can be accomplished by electrically tying the VAV
boxes to the unoccupied output relay contacts on the rooftop module (RTM) or by using
changeover thermostats. Either of these methods will assure adequate airflow through the
unit and satisfactory heating of the building.

Supply Air Tempering

Hot water, steam, and modulating gas units only - When supply air temperature falls below the
supply air temperature deadband low end, the heating valve is modulated open to maintain the set
minimum supply air temperature.

Ventilation Override Module (VOM)

The user can customize up to five (5) different override sequences for purposes of ventilation
override control. If more than one VOM sequence is being requested, the sequence with the highest
priority is initiated first. Sequence hierarchy is the sequence “A” (UNIT OFF) is first, with sequence
“E” (PURGE with Duct Pressure Control) last. A ventilation override mode can be initiated by
closing any of the five (5) corresponding binary input on the VOM module. A binary output is
provided on the VOM module to provide remote indication of an active VOM mode. All
compressors, condenser fans and the humidification output are deenergized for any VOM
sequence. The factory default definitions for each mode are as follows:

UNIT OFF sequence “A”

When complete system shutdown is required the following sequence can be used.
• Supply Fan - Off
• Supply Fan VFD - Closed/Min (if so equipped)
• Exhaust Fan - Off; Exhaust Dampers Closed (if so equipped)
• OA Dampers - Closed; Return Damper - Open
• Heat - All heat stages off; Mod Heat output at 0 VDC
• Occupied/Unoccupied/VAV box output - Deenergized
• VOM Relay - Energized
• Preheat Output - Off

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• Return Fan - Off; Exhaust Dampers - Closed (if so equipped)

• Return VFD - Min (if so equipped)
• OA Bypass Dampers - Open (if so equipped)
• Exhaust Bypass Dampers - Open (if so equipped)

PRESSURIZE sequence “B”

Perhaps a positively pressurized space is desired instead of a negatively pressurized space.
In this case, the supply fan should be turned on with VFD at 100% speed and exhaust fan should
be turned off.
• Supply Fan - On
• Supply Fan VFD - Max (if so equipped)
• Exhaust Fan - Off; Exhaust Dampers Closed (if so equipped)
• OA Dampers - Open; Return Damper - Closed
• Heat - All heat stages off; Mod Heat output at 0 VDC
• Occupied/Unoccupied/VAV box output - Energized
• VOM Relay - Energized
• Preheat Output - Off
• Return Fan - Off; Exhaust Dampers - Closed (if so equipped)
• Return VFD - Min (if so equipped)
• OA Bypass Dampers - Open (if so equipped)
• Exhaust Bypass Dampers - Open (if so equipped)

EXHAUST sequence “C”

With only the exhaust fans running (supply fan off), the space that is conditioned by the rooftop
would become negatively pressurized. This is desirable for clearing the area of smoke from the
now-extinguished fire, possibly keeping smoke out of areas that were not damaged.
• Supply Fan - Off
• Supply Fan VFD - Closed/Min (if so equipped)
• Exhaust Fan - On; Exhaust Dampers Open (if so equipped)
• OA Dampers - Closed; Return Damper - Open
• Heat - All heat stages off; Mod Heat output at 0 VDC
• Occupied/Unoccupied/VAV box output - Deenergized
• VOM Relay - Energized
• Preheat Output - Off
• Return Fan - On; Exhaust Dampers - Open (if so equipped)
• Return VFD - Max (if so equipped)
• OA Bypass Dampers - Open (if so equipped)
• Exhaust Bypass Dampers - Open (if so equipped)

PURGE sequence “D”

Possibly this sequence could be used for purging the air out of a building before coming out of
Unoccupied mode of operation on VAV units or for the purging of smoke or stale air if required after
a fire.
• Supply Fan - On
• Supply Fan VFD - Max (if so equipped)
• Exhaust Fan - On; Exhaust Dampers Open (if so equipped)
• OA Dampers - Open; Return Damper - Closed
• Heat - All heat stages off; Mod Heat output at 0 VDC
• Occupied/Unoccupied/VAV box output - Energized
• VOM Relay - Energized
• Preheat Output - Off
• Return Fan - On; Exhaust Dampers - Open (if so equipped)

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• Return VFD - Max (if so equipped)

• OA Bypass Dampers - Open (if so equipped)
• Exhaust Bypass Dampers - Open (if so equipped)

PURGE with duct pressure control sequence “E”

This sequence can be used when supply air control is required for smoke control.
• Supply Fan - On
• Supply Fan VFD - (If so equipped) Controlled by Supply Air Pressure Control function; Supply
Air Pressure High Limit disabled
• Exhaust Fan - On; Exhaust Dampers Open (if so equipped)
• OA Dampers - Open; Return Damper - Closed
• Heat - All heat stages off; Mod Heat output at 0 VDC
• Occupied/Unoccupied/VAV box output - Energized
• VOM Relay - Energized
• Preheat Output - Off
• Return Fan - On; Exhaust Dampers - Open (if so equipped)
• Return VFD - Max (if so equipped)
• OA Bypass Dampers - Open (if so equipped)
• Exhaust Bypass Dampers - Open (if so equipped)

Emergency Override
When a LonTalk® or BACnet® communication module is installed, the user can initiate from the
Trane® Tracer® Summit™ (in the case of LCI), Tracer® SC or 3rd Party BAS (with either BCI or LCI)
one of five predefined, not available to configure, Emergency Override sequences. All
compressors, condenser fans and the humidification output are de-energized for any Emergency
Override sequence. Each Emergency Override sequence commands the unit operation as follows:

EMERG_PRESSURIZE:
• Supply Fan - On
• Supply Fan VFD - Open/Max (if so equipped)
• Exhaust Fan - Off; Exhaust Dampers Closed (if so equipped)
• OA Dampers - Open; Return Damper - Closed
• Heat - All heat stages off; Mod Heat output at 0 VDC
• Occupied/Unoccupied/VAV box output - Energized
• VOM Relay - Energized (if so equipped)
• Preheat Output - Off
• Return Fan - Off; Exhaust Dampers - Closed (if so equipped)
• Return VFD - Min (if so equipped)

EMERG_DEPRESSURIZE:
• Supply Fan - Off
• Supply Fan VFD - Closed/Min (if so equipped)
• Exhaust Fan - On; Exhaust Dampers Open/Max (if so equipped)
• OA Dampers - Closed; Return Damper - Open
• Heat - All heat stages off; Mod Heat output at 0 VDC
• Occupied/Unoccupied/VAV box output - Energized
• VOM Relay - Energized (if so equipped)
• Preheat Output - Off
• Return Fan - On; Exhaust Dampers - Open (if so equipped)
• Return VFD - Max (if so equipped)

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EMERG_PURGE:
• Supply Fan - On
• Supply Fan VFD - Open/Max (if so equipped)
• Exhaust Fan - On; Exhaust Dampers Open (if so equipped)
• OA Dampers - Open; Return Damper - Closed
• Heat - All heat stages off; Mod Heat output at 0 VDC
• Occupied/Unoccupied/VAV box output - Energized
• VOM Relay - Energized (if so equipped)
• Preheat Output - Off
• Return Fan - On; Exhaust Dampers - Open (if so equipped)
• Return VFD - Max (if so equipped)

EMERG_SHUTDOWN:
• Supply Fan - Off
• Supply Fan VFD - Closed/Min (if so equipped)
• Exhaust Fan - Off; Exhaust Dampers Closed (if so equipped)
• OA Dampers - Closed; Return Damper - Open
• Heat - All heat stages off; Mod Heat output at 0 VDC
• Occupied/Unoccupied/VAV box output - Energized
• VOM Relay - Energized (if so equipped)
• Preheat Output - Off
• Return Fan - Off; Exhaust Dampers - Closed (if so equipped)
• Return VFD - Min (if so equipped)

EMERG_FIRE - Input from fire pull box/system:

• Supply Fan - Off
• Supply Fan VFD - Closed/Min (if so equipped)
• Exhaust Fan - Off; Exhaust Dampers Closed (if so equipped)
• OA Dampers - Closed; Return Damper - Open
• Heat - All heat stages off; Mod Heat output at 0 VDC
• Occupied/Unoccupied/VAV box output - Energized
• VOM Relay - Energized (if so equipped)
• Preheat Output - Off
• Return Fan - Off; Exhaust Dampers - Closed (if so equipped)
• Return VFD - Min (if so equipped)

Human Interface Panel (HI)

The human interface (HI) panel provides a 2 line x 40 character clear English liquid crystal display
and a 16 button keypad for monitoring, setting, editing and controlling. The human interface panel
is mounted in the unit’s main control panel and is accessible through a hatch built into the unit’s
control panel door.
The optional remote-mount version of the human interface (RHI) panel has all the functions of the
unit-mount version except Service Mode. To use a RHI the unit must be equipped with an optional
InterProcessor Communications Bridge (IPCB). The RHI can be located up to 1,000 feet from the
unit. A single RHI can be used to monitor and control up to 4 rooftops, each containing an IPCB.

Human Interface Panel Main Menu

• STATUS - used to monitor all temperatures, pressures, humidities, setpoints, input and output
status. The
• CUSTOM key allows the user to customize a status report-consisting of up to (4) screens of the
data available in the main Status menu.

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• SET POINTS - used to edit all factory preset Default setpoints

• DIAGNOSTICS - used to review active and historical lists of diagnostic conditions. A total of 49
different diagnostics can be read at the human interface panel. The last 20 diagnostics can be
held in an active history buffer log.
• SETUP - Control parameters, sensor selections, setpoint source selections, output definitions,
and numerous other points can be edited in this menu. All points have factory preset values so
unnecessary editing is kept to a minimum.
• CONFIGURATION - Preset with the proper configuration for the unit as it ships from the factory,
this information would be edited only if certain features were physically added or deleted from
the unit. For example, if a field supplied Trane® Communication Interface (TCI) module or
Ventilation Override Module was added to the unit in the field, the unit configuration would
need to be edited to reflect that feature.
• SERVICE - used to selectively control outputs (for compressors, fans, damper position, etc.) for
servicing or troubleshooting the unit. This menu is accessible only at the unit-mounted human
interface panel.

Demand Limiting Binary Input

This function is operational on units with a GBAS and is used to reduce electrical consumption at
peak load times. There are two types of demand limiting, 50% and 100%. When demand limiting
is needed, mechanical cooling and heating operation are either partially (50%), or completely
disabled (100%), in order to save energy. The definition of Demand Limit is user definable at the
human interface panel. Demand Limit binary input accepts a field supplied switch or contact
closure. When the need for demand limiting has been discontinued, the unit cooling/heating
functions will again become fully enabled.

Generic Building Automation System Module (GBAS)

GBAS 0-5 VDC
The Generic Building Automation System Module (GBAS 0-5 VDC) is used to provide broad control
capabilities for building automation systems other than Trane’s Tracer® system. The following
inputs and outputs are provided:
Analog Inputs - Four analog inputs, controlled via a field provided potentiometer or a 0-5 VDC
signal, that can be configured to be any of the following:
• Occupied Zone Cooling Setpoint (CV & SZVAV)
• Unoccupied Zone Cooling Setpoint
• Occupied Zone Heating Setpoint
• Unoccupied Zone Heating Setpoint (SZ)
• Supply Air Cooling Setpoint (CV, SZVAV& VAV with Discharge Temperature Control only)
• Supply Air Heating Setpoint (CV, SZVAV& VAV with Discharge Temperature Control only)
• Space Static Pressure Setpoint
• Supply Air Static Pressure Setpoint (CV & VAV)
• Minimum Outside Air Flow Setpoint
• Morning Warm Up Setpoint (CV & VAV)
• Economizer Dry Bulb Enable Setpoint
• Minimum Outside Air Position Setpoint
• Occupied Humidification Setpoint
• Unoccupied Humidification Setpoint
Binary Outputs - each of the five (5) relay outputs can be mapped to any/all of the available
diagnostics.

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Binary Input - the single binary input can initiate or terminate the Demand Limit mode of
operation via a field supplied switch or contact closure.

GBAS 0-10 VDC

The Generic Building Automation System Module (GBAS 0-10 VDC) is used to provide broad
control capabilities for building automation systems other than Trane’s Tracer® system. The
following inputs and outputs are provided:
Analog Inputs—Four analog inputs, controlled via a field provided potentiometer or a 0-10 VDC
signal, that can be configured to be any of the following:
• Occupied Zone Cooling Setpoint (CV & SZVAV)
• Unoccupied Zone Cooling Setpoint
• Occupied Zone Heating Setpoint
• Unoccupied Zone Heating Setpoint
• Supply Air Cooling Setpoint (CV, SZVAV & VAV with Discharge Temperature Control)
• Supply Air Heating Setpoint (CV, SZVAV & VAV with Discharge Temperature Control)
• Space Static Pressure Setpoint
• Supply Air Static Pressure Setpoint (CV & VAV)
• Minimum Outside Air Flow Setpoint
• Morning Warm Up Setpoint (CV & VAV)
• Economizer Dry Bulb Enable Setpoint
• Minimum Outside Air Position Setpoint
• Occupied Humidification Setpoint
• Unoccupied Humidification Setpoint
Analog Outputs—Four analog outputs that can be configured to be any of the following:
• Outdoor Air Temperature
• Zone Temperature
• Supply Air Temperature (CV, SZVAV & VAV with Discharge Temperature Control)
• Supply Air Pressure (SZVAV & VAV)
• Space Pressure
• Space Relative Humidity
• Outdoor Air Relative Humidity
• Space CO2 Level
• Compressor Staging (%)
• Heat Staging (%)
• Outdoor Air Damper Position
• Outdoor Airflow
• Occupied Humidification Setpoint
• Unoccupied Humidification Setpoint
Binary Output - Single Relay Output Can be Mapped to Any/All of Available Diagnostics
Binary Input - the single binary input can initiate or terminate the Demand Limit mode of
operation, via a field supplied switch or contact closure.
Demand Limiting Binary Input - this function is operational on units with a GBAS and is used
to reduce electrical consumption at peak load times. There are two types of demand limiting, 50%

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and 100%. When demand limiting is needed, mechanical cooling and heating operation are either
partially (50%), or completely disabled (100%), in order to save energy. The definition of Demand
Limit is user definable at the human interface panel. Demand Limit binary input accepts a field
supplied switch or contact closure. When the need for demand limiting has been discontinued, the
unit cooling/heating functions will again become fully enabled.

Frost Avoidance
Steam and Hot Water Coil - Freeze Avoidance
Freeze Avoidance is a feature which helps prevent freezing of steam or hot water heat coils during
periods of unit inactivity and low ambient temperatures. Whenever the unit supply fan is off, the
outdoor air temperature is monitored. If the temperature falls below a predetermined value, the
heating valve is opened to a position selected at the unit-mounted human interface to allow a
minimum amount of steam or hot water to flow through the coil and avoid freezing conditions.

Evaporator Coil Frost Protection - Frostat™

A temperature sensor on the evaporator is used to determine if the coil is getting close to a freezing
condition. Mechanical cooling capacity is shed as necessary to prevent icing.
The Frostat™ system eliminates the need for hot gas bypass and adds a suction line surface
temperature sensor near the TXV bulb location to shut the cooling off when coil frosting conditions
occur. The supply fans are not shut off and will de-ice the coil. Timers prevent the compressors
from rapid cycling.

Occupied/Unoccupied Switching
There are three ways to switch Occupied/Unoccupied:
• Night Setback (NSB) panel
• Field-supplied contact closure (hard-wired binary input to RTM)
• Tracer® (or third party BAS with LCI or BCI module)

Trane® Tracer® or BAS System

The Trane® Tracer® System or a 3rd party BAS (with LCI or BCI module) can control the Occupied/
Unoccupied status of the rooftop.

Night Setback Sensors

Trane’s night setback sensors are programmable with a time clock function that provides
communication to the rooftop unit through a 2-wire communications link. The desired transition
times are programmed at the night setback sensor and communicated to the rooftop.
Night setback (unoccupied mode) is operated through the time clock provided in the sensors with
night setback. When the time clock switches to night setback operation, the outdoor air dampers
close and heating/cooling can be enabled or disabled depending on set-up parameters. As the
building load changes, the night setback sensor energizes the rooftop heating/cooling (if enabled)
function and the evaporator fan. The rooftop unit will cycle through the evening as heating/cooling
(if enabled) is required in the space. When the time clock switches from night setback to occupied
mode, all heating/cooling functions begin normal operation.
When using the night setback options with a VAV heating/cooling rooftop, airflow must be
maintained through the rooftop unit. This can be accomplished by electrically tying the VAV boxes
to the Unoccupied output relay contacts on the Rooftop Module (RTM) or by using changeover
thermostats. Either of these methods will assure adequate airflow through the unit and satisfactory
temperature control of the building.

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Timed Override Activation - ICS

This function is operational when the RTM is the zone temperature sensor source, which was set
up at the human interface panel. When this function is initiated by the push of a override button
on the ICS sensor, the Tracer® will switch the unit to the Occupied mode. Unit operation (Occupied
mode) during timed override is terminated by a signal from Tracer®.

Timed Override Activation - Non-ICS

This function is active whenever the RTM is selected as the Zone Temperature Sensor source, which
was set up at the human interface panel. When this function is initiated by the push of an override
button on the zone sensor, the unit will switch to the Occupied mode. Automatic Cancellation of
the Timed Override Mode occurs after three hours of operation.

Low Ambient
This function will lock out the compressor if the outdoor air temperature is below the low ambient
compressor lock out temperature set point. The factory setpoint is 50°F on standard units and 0°F
on low ambient units. This setpoint is adjustable at the human interface panel. Compressors will
be locked out when outdoor air temperatures fall below the selected temperature and will be
allowed to start again when temperatures rise 5°F above the setpoint.

Outdoor Air Damper Fault Detection and Diagnostics

Fault Detection of the Outdoor Air Damper will be evaluated based on the commanded position of
the damper compared to the feedback position of the damper. The damper is commanded to a
position based on a 0-10 / 2-10 VDC signal. If the Damper position is outside of the commanded
position, a diagnostic is generated. The new Diagnostics can be placed into two groups,
Economizer and Outdoor Air Damper. To be classified as an Economizer diagnostic, the unit must
be actively cooling with either mechanical cooling and or Economizer cooling. The following are
the Diagnostics displayed by the Controller: Unit Not Economizing when it should be, Unit
Economizing when it should not be, Outdoor Air Damper Not Modulating, Excessive Outdoor Air.

Economizer Control
Comparative Enthalpy Control of Economizer
An optional Comparative Enthalpy system is used to control the operation of the economizer, and
measures the temperature and humidity of both return air and outside air to determine which
source has lower enthalpy. This system allows true comparison of outdoor air and return air
enthalpy by measurement of outdoor air and return air temperatures and humidities.

Reference Enthalpy Control of Economizer

The optional reference enthalpy compares ambient temperature and humidity to the economizer
enthalpy control setpoint. If ambient temperature and humidity are below the economizer enthalpy
control setpoint the economizer will operate freely. This system provides more sophisticated
control where outdoor air humidity levels may not be acceptable for building comfort and indoor
air quality.

Dry Bulb Temperature Control of Economizer

The optional dry bulb system measures ambient temperature comparing it to the economizer
control temperature setpoint. If the ambient temperature is below the economizer dry bulb
temperature control setpoint, the economizer will operate freely. This system is best suited for arid
regions where the humidity levels of outside air would not be detrimental to building comfort and
indoor air quality.

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Compressor Lead/Lag
Compressor lead/lag is always set as enabled on all units. After each request for compressor
operation, the lead refrigeration circuit or compressor on 20-30 tons units switches, thereby
causing a more equitable or balanced run time among compressors. Lead/lag is not available on
units with hot gas bypass or units with variable speed compressors.

Emergency Stop Input

A binary input is provided on the rooftop module (RTM) for installation of field provided switch or
contacts for immediate shutdown of all unit functions.

Humidification Control
A relay output is provided to control an externally connected, field supplied humidifier. Logic is
provided for Occupied and Unoccupied humidification control with safeguards to prevent cycling
between humidification and dehumidification.

Hot Gas Reheat (Modulating Dehumidification) - Available on S_HL IntelliPaks

When space conditions allow, the modulating dehumidification function activates the reheat mode
providing dehumidification of the space. The reheat valve and cooling valve are modulated to
control the discharge air temperature to the discharge air temperature reheat setpoint (default
70°F). In reheat mode, the reheat valve is commanded (15 to 85%) to control to the discharge air
reheat setpoint and the cooling valve mirrors the reheat valve position (85 to 15%).

Hot Gas Bypass Control

A hot gas bypass valve is installed on circuit 2. The valve modulates hot gas to the inlet of the
evaporator when suction pressure falls below valve adjustable setpoint. This feature allows
operation at low airflow, while avoiding coil frosting and damage to the compressors.

Return Fan Control

A return fan reduces the load on the supply fan motor or can allow a unit to operate at a higher static
pressure. The return fan VFD is modulated independently to maintain desired return air plenum
pressure. In all other cases the return fan is turned on or off with the supply fan.

Low Charge Protection

The low charge feature measures the entering and leaving evaporator temperatures on each circuit
to calculate a superheat value for each circuit. The superheat value is used for multiple purposes:
• Displayed at the human interface panel to assist the service technician with unit charging and
diagnostics
• A diagnostic message displayed at the human interface panel, warning of a low charge situation
when the unit is just slightly undercharged. The unit will be allowed to run.
• A diagnostic message displayed at the human interface panel, warning of a low charge situation
when the unit is undercharged. The undercharged circuit will be locked out to protect the
compressors.

Building Automation System

The LonTalk® communication protocol for the IntelliPak™ (LCI-I) controller expands
communications from the unit UCM network to a Trane® Tracer® Summit™ or third party building
automation system. Utilizing LonTalk®, the BAS allows external setpoint and configuration
adjustment and monitoring of status and diagnostics. The LCI-I utilizes an FTT-10A free topology
transceiver, which supports non-polarity sensitive, free topology wiring, which in turn allows the
system installer to utilize star, bus, and loop architectures.This controller works in standalone
mode, peer-to-peer with one or more other units, or when connected to a Trane® Tracer®

RT-PRC036T-EN 133
Controls

Summit™ or a third party building automation system that supports LonTalk®. The LCI-I controller
is available as a factory or field-installed kit.

BACnet® Building Automation System

The BACnet® control network for IntelliPak™ (BCI-I) expands communications from the unit UCM
network to Tracer® Summit™ or third party building automation system. Utilizing BACnet®, and
the BAS allows external setpoint and configuration adjustment and monitoring of status and
diagnostics. The BCI-I utilizes the BACnet® defined MS/TP protocol as defined in ASHRAE standard
135-2004. This controller works in standalone mode, with Tracer® Summit™ or when connected
to a third party building automation system that supports BACnet®. The BCI-I controller is available
as a factory or field-installed kit.

CO2 Demand Control Ventilation

CO2 demand control ventilation (DCV) provides ventilation for occupants while reducing energy
consumption. It does so by minimizing the OA damper position (units without Traq™) or the OA
flow setpoint (units with Traq™), below the Building Design Minimum, per ASHRAE Std 62.1-
2004. If the space CO2 level is below the CO2 Minimum Setpoint the OA damper shall close to the
DCV Minimum OA Damper Setpoint (units without Traq™) or until the DCV Minimum OA flow
Setpoint is met (units with Traq™.)

134 RT-PRC036T-EN
Electrical Data
Electrical Service Sizing
To correctly size electrical service wiring for your unit, find the appropriate calculations listed
below. Each type of unit has its own set of calculations for MCA (Minimum Circuit Ampacity), MOP
(Maximum Overcurrent Protection), and RDE (Recommended Dual Element fuse size). Read the
load definitions that follow and then find the appropriate set of calculations based on your unit
type. Set 1 is for cooling only and cooling with gas heat units, and set 2 is for cooling with electric
heat units.
Load definitions: (To determine load values, see the Electrical Service Sizing Data Tables on the
following page.)
LOAD1 = CURRENT OF THE LARGEST MOTOR (COMPRESSOR OR FAN MOTOR)
LOAD2 = SUM OF THE CURRENTS OF ALL REMAINING MOTORS
LOAD3 = CURRENT OF ELECTRIC HEATERS

Set 1. Cooling Only Rooftop Units and Cooling with Gas Heat Rooftop Units
MCA = (1.25 x LOAD1) + LOAD2 + LOAD4
MOP = (2.25 x LOAD1) + LOAD2 + LOAD4
Select a fuse rating equal to the MOP value. If the MOP value does not equal a standard fuse size
as listed in NEC 240-6, select the next lower standard fuse rating.
Note: If selected MOP is less than the MCA, then reselect the lowest standard maximum fuse size
that is equal to or larger than the MCA, provided the reselected fuse size does not exceed
800 amps.
RDE = (1.5 x LOAD1) + LOAD2 + LOAD4
Select a fuse rating equal to the RDE value. If the RDE value does not equal a standard fuse size as
listed in NEC 240-6, select the next higher standard fuse rating.
Note: If the selected RDE is greater than the selected MOP value, then reselect the RDE value to
equal the MOP value.

Set 2. Rooftop units with Electric Heat

Single Source Power (380V, 415V, 460V, and 575V)
To arrive at the correct MCA, MOP, and RDE values for these units, you must perform two sets of
calculations. First calculate the MCA, MOP, and RDE values as if the unit was in cooling mode (use
the equations given in Set 1). Then calculate the MCA, MOP, and RDE values as if the unit were in
the heating mode as follows.
(Keep in mind when determining LOADS that the compressors don’t run while the unit is in the
heating mode).
For units using heaters less than 50 kW.
MCA = 1.25 x (LOAD1 + LOAD2 + LOAD4) + (1.25 x LOAD3)
For units using heaters equal to or greater than 50 kW.
MCA = 1.25 x (LOAD1 + LOAD2 + LOAD4) + LOAD3
The nameplate MCA value will be the larger of the cooling mode MCA value or the heating mode
MCA value calculated above.
MOP = (2.25 x LOAD1) + LOAD2 + LOAD3 + LOAD4
The selection MOP value will be the larger of the cooling mode MOP value or the heating mode
MOP value calculated above.

RT-PRC036T-EN 135
Electrical Data

Select a fuse rating equal to the MOP value. If the MOP value does not equal a standard fuse size
as listed in NEC 240-6, select the next lower standard fuse rating.
Note: If selected MOP is less than the MCA, then reselect the lowest standard maximum fuse size
which is equal to or larger than the MCA, provided the reselected fuse size does not exceed
800 amps.
RDE = (1.5 x LOAD1) + LOAD2 + LOAD3 + LOAD4
The selection RDE value will be the larger of the cooling mode RDE value or the heating mode RDE
value calculated above.
Select a fuse rating equal to the RDE value. If the RDE value does not equal a standard fuse size as
listed in NEC 240-6, select the next higher standard fuse rating.
Note: If the selected RDE is greater than the selected MOP value, then reselect the RDE value to
equal the MOP value.

Dual Source Power units (200V and 230V)

These units will have two circuit values shown on the nameplate. The first circuit value will be the
refrigeration (cooling mode) values calculated per Set 1. The second set of circuit values shown on
the nameplate will be for the electric heating circuit as follows.
MCA = (1.25 x LOAD3)
MOP = (1.25 x LOAD3)
Select a fuse rating for the electric heating circuit that’s equal to the MOP value obtained in the
equation above. If the MOP value does not equal a standard fuse size as listed in NEC 240-6, select
the next lower standard fuse rating (see note below for exception).
Note: If the available MOP option is less than the MCA obtained in the equation above, then
reselect the lowest standard maximum fuse size which is equal to, or larger, than the MCA,
provided the reselected fuse size does not exceed 800 amps.
RDE = LOAD3
Select a fuse rating for the electric heating circuit that’s equal to the RDE value. If the RDE value does
not equal a standard fuse size as listed in NEC 240-6, select the next higher standard fuse rating.
Notes:
• If the selected RDE is greater than the selected MOP value, then reselect the RDE value to equal
the MOP value.
• The selected MOP value is stamped in the MOP field on the nameplate.

Table 71. Compressor electrical service sizing data (20 to 130 ton)
200V 230V 460V 575V
No. of
Tonnage Compressors RLA LRA RLA LRA RLA LRA RLA LRA
20 Std 2 41.4 267.0 40.3 267.0 19.1 142.0 15.8 103.0
20 Hi Eff 2 41.4 267.0 40.3 267.0 19.1 142.0 15.8 103.0
1 41.4 267.0 40.3 267.0 19.1 142.0 15.8 103.0
25 Std
1 47.0 304.0 42.3 304.0 20.2 147.0 17.1 122.0
1 41.4 267.0 40.3 267.0 19.1 142.0 15.8 103.0
25 Hi Eff
1 51.9 315.0 47.0 315.0 22.2 158.0 19.2 136.0
30 Std 2 51.9 315.0 47.0 315.0 22.2 158.0 19.2 136.0
1 51.9 315.0 47.0 315.0 22.2 158.0 19.2 136.0
30 Hi Eff
1 56.9 351.0 48.8 351.0 25.5 197.0 23.1 146.0
2 31.3 203.0 30.4 203.0 13.1 98.0 11.9 84.0
40 Std
2 37.3 267.0 31.8 267.0 15.9 142.0 15.2 103.0
40 Hi Eff 4 37.3 267.0 31.8 267.0 15.9 142.0 15.2 103.0

136 RT-PRC036T-EN
 Electrical Data

Table 71. Compressor electrical service sizing data (20 to 130 ton) (continued)

200V 230V 460V 575V

No. of
Tonnage Compressors RLA LRA RLA LRA RLA LRA RLA LRA
1(a) 59.9 N/A 52.0 N/A 26.0 N/A 21.7 N/A
40 Vari Spd 1 31.3 203.0 30.4 203.0 13.1 98.0 11.9 84.0
1 37.3 267.0 31.8 267.0 15.9 142.0 15.2 103.0
50 Std 4 41.4 267.0 40.3 267.0 19.1 142.0 15.8 103.0
2 41.4 267.0 40.3 267.0 19.1 142.0 15.8 103.0
50 Hi Cap & Hi Eff
2 47.0 304.0 42.3 304.0 20.2 147.0 17.1 122.0
1(a) 75.2 N/A 65.2 N/A 32.6 N/A 27.5 N/A
50 Vari Spd 1 41.4 267.0 40.3 267.0 19.1 142.0 15.8 103.0
1 47.0 304.0 42.3 304.0 20.2 147.0 17.1 122.0
55 Std & Hi Eff 4 47.0 304.0 42.3 304.0 20.2 147.0 17.1 122.0
1(a) 75.2 N/A 65.2 N/A 32.6 N/A 27.5 N/A
55 Vari Spd 1 47.0 304.0 42.3 304.0 20.2 147.0 17.1 122.0
1 51.9 315.0 47.0 315.0 22.2 158.0 19.2 136.0
2 47.0 304.0 42.3 304.0 20.2 147.0 17.1 122.0
60 Std
2 51.9 315.0 47.0 315.0 22.2 158.0 19.2 136.0
60 Hi Cap & Hi Eff 4 51.9 315.0 47.0 315.0 22.2 158.0 19.2 136.0
1(a) 89.9 N/A 77.9 N/A 38.9 N/A 32.7 N/A
60 Vari Spd 1 51.9 315.0 47.0 315.0 22.2 158.0 19.2 136.0
1 56.9 351.0 48.8 351.0 25.5 197.0 23.1 146.0
70 Std & Hi Eff 4 56.9 351.0 48.8 351.0 25.5 197.0 23.1 146.0
1(a) 89.9 N/A 77.9 N/A 38.9 N/A 32.7 N/A
70 Vari Spd 1 60.5 320.0 52.0 320.0 25.4 160.0 20.3 135.0
1 83.9 485.0 74.5 485.0 37.2 215.0 29.8 175.0
2 60.5 320.0 52.0 320.0 25.4 160.0 20.3 135.0
75 Std
2 83.9 485.0 74.5 485.0 37.2 215.0 29.8 175.0
2 60.5 320.0 52.0 320.0 25.4 160.0 20.3 135.0
75 Hi Cap & Hi Eff
2 83.9 485.0 74.5 485.0 37.2 215.0 29.8 175.0
90 Std & Hi Cap 4 N/A N/A N/A N/A 37.2 215.0 29.8 175.0
2 N/A N/A N/A N/A 37.2 215.0 29.8 175.0
105 Hi Cap
2 N/A N/A N/A N/A 45.0 260.0 36.0 210.0
2 N/A N/A N/A N/A 37.2 215.0 29.8 175.0
115 Std
2 N/A N/A N/A N/A 45.0 260.0 36.0 210.0
130 Std 4 N/A N/A N/A N/A 45.0 260.0 36.0 210.0
(a) Variable Speed Compressor

RT-PRC036T-EN 137
Electrical Data

Table 72. Electrical service sizing data — motors — 20 to 130 tons

Nominal Voltage
200 230 460 575
FLA FLA FLA FLA
Nominal Tons Air-Cooled Condenser Fan Motor
20 8.2 8.2 3.6 2.8
25 12.3 12.3 5.4 4.2
30 12.3 12.3 5.4 4.2
40 16.4 16.4 7.2 5.6
50, 55 24.6 24.6 10.8 8.4
60 24.6 24.6 10.8 8.4
70 24.6 24.6 10.8 8.4
75 24.6 24.6 10.8 8.4
90 N/A N/A 14.4 11.2
105 N/A N/A 18.0 14.0
115 N/A N/A 18.0 14.0
130 N/A N/A 21.6 16.8
Motor Horsepower Supply(a)/Exhaust/Return Fan Motor(b) (4 pole)
3 11.0 8.6 4.3 3.8
5 15.3 13.2 6.6 5.4
7.5 22.2 18.8 9.4 7.8
10 29.5 25.2 12.6 10.1
15 40.7 35.4 17.7 15.1
20 56.1 49.4 24.7 19.6
25 70.5 62.0 31.0 24.5
30 85.5 73.2 36.6 29.2
40(c) N/A N/A 49.0 39.0
50(c) N/A N/A 60.5 48.0
Motor Horsepower Supply Fan Motor (6 pole)(a)(d)
3 10.1 8.8 4.4 3.7
5 17.0 14.8 7.4 5.8
7.5 25.0 22.0 11.0 8.6
10 32.0 28.6 14.3 11.5
15 46.0 41.0 20.5 16.0
20 63.0 54.0 27.0 22.0
(a) FLA is for individual motors by HP, not total unit supply fan HP.
(b) Return fan motors are available in 3-20 Hp
(c) 40 & 50 Hp motor available as standard in 460 & 575 volt only
(d) DDP fans selected under 1,600 RPM will have 6-pole motors

Table 73. Electrical service sizing data —electric heat module (electric heat units only) —
20 to 130 tons

Voltage
200 230 460 575
Module kW FLA FLA FLA FLA
30 83.3 72.2 36.1 28.9
50 138.8 120.3 60.1 48.1
70 194.3 168.4 84.2 67.4

138 RT-PRC036T-EN
 Electrical Data

Table 73. Electrical service sizing data —electric heat module (electric heat units only) —
20 to 130 tons (continued)
90 249.8 216.5 108.3 86.6
110 305.3 264.6 132.3 105.9
130 156.4 125.1
150 180.4 144.3
170 204.5 163.6
190 228.5 182.8
Note: Electric heat FLA are determined at 208, 240, 480 and 600 volts.

Table 74. Electrical service sizing data — control power transformer heating
and cooling modes — 20 to 130 tons

Voltage
Nominal Tons Digit 2
(AC/EC) Unit Function 200 230 460 575
A,E,L,S,X 1 1 1 1
20,25,30
F 4 3 2 1
A,E,L,S,X 3 2 1 1
40,50,55,60
F 5 4 2 2
A,E,L,S,X 5 4 2 2
70,75
F 8 7 3 3
E,L,S,X 5 4 2 2
90,105,115,130
F 8 7 3 3

Table 75. Electrical service sizing data — crankcase heaters (heating mode on 460/575 volt only)
— 20 to 130 tons

Nominal Tons
(AC/EC) (Add) FLA
20,25,30 1
40,50,55,60 2
70,75 3
90-105 3
115-130 4

Table 76. Voltage utilization range

Voltage
Unit Voltage Utilization Range
200/60/3 180-220
230/60/3 207-253
380/50/3 342-418
415/50/3 373-457
460/60/3 414-506
575/60/3 517-633

RT-PRC036T-EN 139
Dimensional Data
Figure 26. Cooling only unit dimensions - SAHL — 20 to 75 tons air-cooled

HINGED PANEL - SUPPLY

(OPTIONAL)

OPTIONAL LOW
100% EXHAUST/ AMBIENT DAMPER
RETURN OR 100% EXHAUST/
OPTIONAL ACCESS
50% EXHAUST RETURN DAMPER
DOOR 2’ 10 5/8”
DAMPER ONLY

OPTIONAL ULTRA LOW LEAK

POWER EXHAUST DAMPER
DECORATIVE
See Note
GRILL

A
P B H

LIFTING
POINTS* 1” HINGED PANEL 6 1/8”
1 3/8” DIA. UNIT CONTROL
DRAIN HOLES
5 13/16” N (BOTH SIDES) C
M LIFTING D 1 1/2” 1 1/2”
O POINT*
K
1” NPT-F CONDENSATE DRAIN (BOTH SIDES)**
E

M2 DISCHARGE F
G OPENING
J

Table 77. Cooling only unit dimensions (ft. in.) - SAHL

Nom.
H L W A B C D E F G J
Tons
20, 25 7-3 1/4 21-9 3/4 7-6 1/2 7-10 5/8 6-9 0-9 1/2 1-3 5/8 1-7 9/16 1-3 1/2 2-2 1/2 14-0 1/4
30 7-3 1/4 21-9 3/4 7-6 1/2 7-10 5/8 6-9 0-9 1/2 1-3 5/8 1-7 9/16 1-3 1/2 2-2 1/2 14-0 1/4
40 7-3 1/4 29-8 7-6 1/2 7-10 5/8 6-9 0-9 7/8 1-5 7/8 1-10 1/8 2-5 2-5 16-7 13/16

50, 55 7-3 1/4 29-8 7-6 1/2 7-10 5/8 6-9 0-9 1/2 1-5 7/8 1-10 1/8 2-5 2-5 16-7 13/16

60 7-3 1/4 29-8 9-8 7-10 5/8 6-9 0-9 7/8 1-5 7/8 1-10 1/8 2-5 2-5 16-7 13/
16
70, 75 7-3 1/4 29-8 9-8 7-10 5/8 6-9 0-9 7/8 1-5 7/8 1-10 1/8 2-5 2-5 16-7 13/16

N Q
Nom.
K M M2 w/exhaust w/return O P w/exhaust w/return R S U
Tons
fan fan fan fan
20, 25 12-6 7-0 N/A 6-6 15/16 3 10-7 3-9 5/16 3-4 3/8 2 - 9 15/16 5-7 0-11 3/4 7-9 1/2
30 12-6 7-0 N/A 6-6 15/16 3 10-7 4-9 5/16 3-4 3/8 2 - 9 15/16 5-7 0-11 3/4 7-9 1/2
40 15-4 15/ 8-0 16-2 5/16 7-8 3/16 3-4 12-1 5-9 5/16 3-4 3/8 3 - 1 1/2" 5-7 0-11 3/4 7-9 1/2
16
50, 55 15-4 15/16 8-0 16-2 5/16 7-8 3/16 3-4 12-1 6-9 3/8 3-4 3/8 3 - 1 1/2" 5-7 0-11 3/4 7-9 1/2
60 15-4 15/16 8-0 16-2 5/16 7-8 3/16 4-5 12-1 5-9 5/16 4-5 3/8 4 - 2 1/2" 6-10 7/8 1-4 9/16 9-11
70, 75 15-4 15/ 8-0 16-2 5/16 7-8 3/16 4-5 12-1 5-9 5/16 4-5 3/8 4 - 2 1/2" 6-10 7/8 1-4 9/16 9-11
16
Note: Optional ultra low leak power exhaust extends beyond lifting lug and increases overall “U” dimension by 0.65".

140 RT-PRC036T-EN
 Dimensional Data

Figure 27. Heating/cooling unit dimensions - 20 to 75 tons air-cooled

8’ SERVICE
CLEARANCE 8’ SERVICE
ACCESS PANEL CLEARANCE
1 3/8” 4’ 1 3/8” DIA.
DRAIN HOLE (REFRIGERANT
SERVICE DRAIN HOLE COMPONENTS)
CLEARANCE
FRESH
AIR
INTAKE

EVAP. FAN ASSEMBLY

FRESH AIR

UNIT DISCHARGE
INTAKE ON
50, 55, 60

FILTER SECTION
VFD
70 & 75

EVAP. COIL
LOCATION
DAMPER
TON ONLY

OPENING
RTRN OPENING
CLEARANCE
SERVICE

2’ 10 5/8”
6’

DOORSWING 8 13/16” 9 1/16”

SEE DETAIL A AND B
180°
2’10” 5/8” 2’ 1 1/2” HEAT ACCESSORY
OPTIONAL DOORSWING CONTROL PANEL
ACCESS 8’ SERVICE
DOOR CLEARANCE HINGED PANEL (GAS)
HINGED PANEL HINGED PANEL (PANEL OPTIONAL FOR HYDRONIC OR
FILTER SECTION
ELECTRIC HEAT)

100%
EXHAUST/ 100% OPTIONAL LOW
RETURN EXHAUST/ FLUE EXHAUST AMBIENT DAMPER
OR 50% RETURN OPTIONAL ACCESS (GAS HEAT ONLY)
EXHAUST DAMPER DOOR 2’ 10 5/8”
6 1/4” DAMPER ONLY
OPTIONAL ULTRA LOW LEAK
POWER EXHAUST DAMPER
See Note 3 DECORATIVE
GRILL

T B H A

8 1/8”

1” HINGED PANEL
LIFTING POINTS* 1 3/8” DIA. 6 1/8”
UNIT CONTROL
DRAIN HOLES
5 13/16” S 1” NPT-F (BOTH SIDES) C
CONDENSATE
R DRAIN (BOTH SIDES)
LIFTING POINT*
D 1 1/2” 1 1/2”
O
Q
E
1” NPT-F CONDENSATE DRAIN (BOTH SIDES)
P F
3” MAX. CONDUIT 200-230V ELECTRIC HEAT
3 5/8” HYDRONIC HEAT SUPPLY CONNECTION

R2
Note: Unit drawing is representative only and may not
K accurately depict all models.
1 1/4” GAS (SIDE)
N DISCHARGE
1 1/4” GAS (BOTTOM) or 3” HYDRONIC HEAT RETURN CONNECTION OPENING
M G

Table 78. Heating/cooling unit dimensions (ft. in.) - air-cooled - SEHL, SFHL, SSHL, SLHL, SXHL
Nom.
Tons H L W A B C D E F
20, 25 7-3 1/4 24-1 3/8 7-6 1/2 7-10 5/8 6-9 0-9 1/2 1-3 5/8 1-7 9/16 1-3 1/2
30 7-3 1/4 24-1 3/8 7-6 1/2 7-10 5/8 6-9 0-9 1/2 1-3 5/8 1-7 9/16 1-3 1/2
40 7-3 1/4 32-10 1/2 7-6 1/2 7-10 5/8 6-9 0-9 7/8 1-5 7/8 1-10 1/8 2-5
50, 55 7-3 1/4 32-10 1/2 7-6 1/2 7-10 5/8 6-9 0-9 7/8 1-5 7/8 1-10 1/8 2-5
60 7-3 1/4 32-10 1/2 9-8 7-10 5/8 6-9 0-9 7/8 1-5 7/8 1-10 1/8 2-5
70, 75 7-3 1/4 32-10 1/2 9-8 7-10 5/8 6-9 0-9 7/8 1-5 7/8 1-10 1/8 2-5
continued on next page

RT-PRC036T-EN 141
Dimensional Data

Table 78. Heating/cooling unit dimensions (ft. in.) - air-cooled - SEHL, SFHL, SSHL, SLHL, SXHL
Nom.
Tons G J(a) K(a) M N O P Q R
16-9 3/4 16-6 15-5 5/16 13-3 7-0
20, 25 2-2 1/2 16-3 13/16 16-7 10-7
16-9 3/4 16-6 15-5 5/16 13-3 7-0
3/4 18-11 11/ 15/16
16-9 16-6 15-4 8-0
16
30 2-2 1/2 16-3 13/16 16-7 10-7 11/
18-11
16-9 3/4 16-6 15-4 15/16 8-0
16
18-11 11/
20-1 3/4 19-6 15-4 15/16 8-0
16
40 2-5 19-10 5/16 19-7 12-1
18-11 11/
20-6 3/4 20-3 15-4 15/16 8-0
16
20-1 3/4 19-6 15-5 5/ 16 13-3 7-0
50, 55 2-5 19-10 5/16 19-7 12-1
20-6 3/4 20-3 15-5 5/16 13-3 7-0
3/4 18-11 11/ 15/16
20-1 19-6 15-4 8-0
16
60 2-5 19-10 5/16 19-7 12-1 11/
18-11
20-6 3/4 20-3 15-4 15/16 8-0
16
18-11 11/
20-1 3/4 19-6 15-4 15/16 8-0
16
70, 75 2-5 19-10 5/16 19-7 12-1
18-11 11/
20-6 3/4 20-3 15-4 15/16 8-0
16
S U
w/ w/ w/ w/
Nom. exhaust return exhaust return
Tons R2 fan fan T fan fan V X Z
20, 25 N/A 6-6 15/16 3-0 3-9 5/16 3-4 3/8 2-915/16 5-7 0-5 13/16 7-9 1/2
30 N/A 6-6 15/16 3-0 4-9 5/16 3-43/8 2-915/16 5-7 0-5 13/16 7-9 1/2
40 16-2 5/16 7-8 3/16 3-4 5-9 5/16 3-43/8 3-1½ 5-7 0-5 13/16 7-9 1/2
50, 55 16-2 5/16 7-8 3/16 3-4 6-9 3/8 3-43/8 3-1½ 5-7 0-5 13/16 7-9 1/2
60 16-2 5/16 7-8 3/16 4-5 5-9 5/16 4-5 3/
8 4-2½ 7-8½ 0-5 13/16 9-11
70, 75 16-2 5/16 7-8 3/16 4-5 5-9 5/16 4-5 3/8 4-2½ 7-8½ 0-5 13/16 9-11
Notes:
1 Unit drawing is representative only and may not accurately depict all models.
2 Use high gas heat J dimension for all hydronic heat connections.
3 Optional Ultra Low Leak Power Exhaust extends beyond lifting lug and increases overall “Z” dimension by 0.65".
(a) In columns J and K: top dimension = high gas heat, bottom dimension = low gas heat.

142 RT-PRC036T-EN
 Dimensional Data

Figure 28. Optional roof curb dimensions (downflow) — 20 - 75 ton air cooled

Note:
1 The pedestal was purposely designed 13/8" shorter than the curb because the unit base rails rest on the pedestal at one point and on the curb at a
different point.

Table 79. Downflow roof curb dimensions (ft. in.) — 20 - 75 ton air cooled
Tons Model A B C D E F G H J
SAHL 16'-3 7/8" 2'-10 1/16" 7'-10 7/16" 7'-0 13/16" 16'-3 9/16" 7'-0 1/2" 13'-6 15/16" 7'-11 15/16" 5'-8 13/16"
20,25,30
S*HL 18'-7 1/2" 2'-10 1/16" 7'-10 7/16" 7'-0 13/16" 18'-7 3/16" 7'-0 1/2" 15'-10 9/16" 7'-11 15/16" 5'-8 13/16"
40, SAHL 19'-1 15/16" 7'-10 1/16" 7'-10 7/16" 7'-0 13/16" 19'-1 5/8" 7'-0 1/2" 16'-2 9/16" 7'-11 15/16" 5'-8 13/16"
50,55 S*HL 22'-4 1/2" 7'-10 1/16" 7'-10 7/16" 7'-0 13/16" 22'-4 1/8" 7'-0 1/
2" 19'-5" 7'-11 15/16" 5'-8 13/16"
SAHL 19'-1 15/16" 7'-10 1/16" 9'-11 15/16" 9'-2 5/16" 19'-1 5/8" 9'-2" 16'-2 9/16" 10'-1 7/16" 7'-10 5/16"
60,70,75
S*HL 22'-4 1/2" 7'-10 1/16" 9'-11 15/16" 9'-2 5/16" 22'-4 1/8" 9'-2" 19'-5" 10'-1 7/16" 7'-10 5/16"
Tons Model K L M N P Q R S
SAHL 2'-0" 2'-5 5/16" 2'-11 5/16" 1'-10 5/8" 5'-9 1/2" 0'-5 11/16" 0'-5 11/16" 2'-3 5/16"
20,25,30
S*HL 2'-0" 2'-5 5/16" 2'-11 5/16" 1'-10 5/8" 5'-7 3/8" 1'-0 7/16" 0'-1" 2'-3 5/16"
40, SAHL 2'-0" 3'-6" 4'-0" 1'-10 5/8" 5'-9 1/2" 0'-5 11/16" 0'-5 11/16" 2'-5 15/16"
50,55 S*HL 2'-0" 3'-6 4'-0 1'-10 5/8" 5'-7 3/8" 0'-11 3/16" 0'-2 1/4" 2'-5 15/16"
SAHL 2'-0" 3'-6" 4'-0" 1'-10 5/8" 6'-11 7/8" 0'-11 3/16" 0'-11 3/16" 2'-5 15/16"
60,70,75
S*HL 2'-0" 3'-6" 4'-0" 1'-10 5/8" 7'-8 3/4" 0'-11 3/16" 0'-2 3/8" 2'-5 15/16"
Note: The return opening of the roof curb is provided with an adjustable filler panel six inches wide. This panel allows adjustment of the return air opening
in order to clear roof members of all standard roof constructions with both the supply and return openings. The return air opening of the curb is at
a 90 degree angle as compared to the rooftop return air opening to allow this placement flexibility. The curb acts as a plenum between the ductwork
and the unit return opening. A retainer clip is used to secure the adjustable filler piece to the roof curb.

RT-PRC036T-EN 143
Dimensional Data

Figure 29. Heating/cooling and cooling only rooftops — 90, 105, 115, 130 ton air-cooled

14’ 4”
4369mm

1” NPT (2540mm) CONDENSATE DRAIN (BOTH SIDES)

Note: Ultra low leak power exhaust damper option extends 0.65" beyond lifting lugs.

144 RT-PRC036T-EN
 Dimensional Data

Figure 30. Service clearance — 90 to 130 tons air-cooled

Notes:
1 Provide unrestricted clearance over the condenser fans.
2 A minimum clearance of 2' 4½" is required to open the
hinged control panel doors. Both doors swing outward in
a 180-degree arc.
3 A minimum clearance of 2' 10¾" is required to open the
access doors on the unit's supply fan, evaporator, filter
and exhaust fan sections. All hinged doors swing
outward in a 180-degree arc.
4 90-130 ton models have two outdoor air intakes located
at the back of the unit and one small outdoor air intake
located at the end of the unit.
5 A minimum clearance of 3' 7" is required to open the
hinged access panel door to the VFD enclosure.
6 Unit drawing is representative only and may not
accurately depict all models.

Figure 31. Roof curb dimensions — 90 to 130 ton air-cooled

3"

9' 9 1/4" 5' 4 3/8"

13' 3 15/16" 11' 2 1/16"
21' 1/2" 1' 2 1/16"
25' 3 1/2" RETURN
5' 6 5/8"
OPENING
18' 5 1/4"
7' 0" 1' 9 1/8"
2' 1" 1' 13/16"

3' 11" 2"

3' 9"

7' 0"

7 1/2" SUPPLY
OPENING 25' 3 1/2"
11' 2 3/8"

12' 1 1/2"
1' 11/16" 2"
12'

7' 4 13/16"

7"
Notes:
1 The pedestal was purposely designed 13/8" shorter than the curb because the unit base rails rest on the pedestal at
one point and on the curb at a different point.
2 Curb dimensions shown are for units with air-cooled condensers; for design special units with evaporative
condensers, please see curb installation guide RT-SVN06*-EN.

RT-PRC036T-EN 145
Dimensional Data

Figure 32. Cross section through roof curb and base pan

Field-Installed Sensors
Figure 33. Field-installed zone sensor—programmable night setback sensor (BAYSENS119*)

(73.55 [2.90]) (27.52 [1.08])

(120.36 [4.74])

Note: Remote sensors are available for use with all zone
sensors to provide remote sensing capabilities.

146 RT-PRC036T-EN
 Dimensional Data

Figure 34. Field-installed zone sensor—dual setpoint, manual/automatic changeover with

system function lights (BAYSENS110*), without LED function lights (BAYSENS108*),
single setpoint without LED function lights (BAYSENS106*)

<<2.90~ln>> <<1.08~ln>>

<<4.68~ln>>

SIDE VIEW
FRONT VIEW

Figure 35. Field-installed zone sensor—with timed override button and local setpoint adjustment (BAYSENS074*), with
timed override only (BAYSENS073*), sensor only (BAYSENS077*)
1-3/32 [27,43 mm]

2-29/32 [73,55 mm] 1-3/32 [27,43 mm]

2-29/32 [73,55 mm]

4-11/16 [118,75 mm] 4-11/16 [118,75 mm]

FRONT RIGHT
FRONT RIGHT

Note: Remote sensors are available for use with all zone
sensors to provide remote sensing capabilities.

RT-PRC036T-EN 147
Dimensional Data

Figure 36. Field-installed temperature sensor (BAYSENS016*)

Figure 37. Field-installed remote minimum position potentiometer control (BAYSTAT023*)

Figure 38. Field-installed humidity sensor—wall (BAYSENS036*) or duct mount (BAYSENS037*)

1 in. (25 mm)

4.5 in. 3.375 in.

(114 mm) (86 mm)

2.75 in. 0.188 in. (5 mm) x 0.375 (10 mm) in.

(70 mm)

148 RT-PRC036T-EN
Weights
Table 80. Air-cooled condenser - approximate operating weights (lbs./kg.)

Without Exhaust Fan With Exhaust Fan

Unit SA SX SE SF SL/SS SA SX SE SF SL/SS
Lb 4116 4336 4446 4736 4446 4414 4634 4744 5034 4744
20
Kg 1867 1967 2017 2148 2017 2002 2102 2152 2283 2152
Lb 4209 4419 4549 4819 4549 4513 4723 4853 5123 4853
25
Kg 1909 2004 2063 2186 2063 2047 2142 2201 2324 2201
Lb 4598 4838 4958 5228 4958 5055 5295 5415 5685 5415
30
Kg 2086 2194 2249 2371 2249 2293 2402 2456 2579 2456
Lb 6511 6891 7051 7531 7051 7181 7561 7721 8201 7721
40
Kg 2953 3126 3198 3416 3198 3257 3430 3502 3720 3502
Lb 7236 7616 7786 8246 7786 7955 8335 8505 8965 8505
50
Kg 3282 3455 3532 3740 3532 3608 3781 3858 4066 3858
Lb 7484 7874 8034 8514 8034 8203 8593 8753 9233 8753
55
Kg 3395 3572 3644 3862 3644 3721 3898 3970 4188 3970
Lb 8396 8612 8772 9232 8772 9339 9555 9715 10175 9715
60
Kg 3808 3906 3979 4188 3979 4236 4334 4407 4615 4407
Lb 8659 8839 8989 9469 8989 9602 9782 9932 10412 9932
70
Kg 3928 4009 4077 4295 4077 4355 4437 4505 4723 4505
Lb 8912 9092 9242 9722 9242 9855 10035 10185 10665 10185
75
Kg 4042 4124 4192 4410 4192 4470 4552 4620 4838 4620
Lb. x 12493 12648 13293 13343 x 13831 13986 14631 14681
90
Kg x 5667 5737 6030 6052 x 6273 6344 6637 6659
Lb. x 13126 13281 13926 13976 x 14464 14619 15264 15314
105
Kg x 5954 6024 6317 6339 x 6561 6631 6924 6946
Lb. x 13330 13485 14130 14180 x 14668 14823 15468 15518
115
Kg x 6046 6117 6409 6432 x 6653 6724 7016 7039
Lb. x 13616 13771 14416 14466 x 14954 15109 15754 15829
130
Kg x 6176 6246 6539 6562 x 6783 6853 7146 7180
Notes:
1 Weights shown are for air-cooled units with standard capacity, standard efficiency and include the following features: FC fans, standard scroll
compressors, 100% economizer, throwaway filters, maximum motor sizes, 460V XL start, high capacity heat.
2 Weights shown represent approximate operating weights and have a ±5% accuracy. To calculate weight for a specific unit configuration, utilize
TOPSS™ or contact the local Trane® sales representative. ACTUAL WEIGHTS ARE STAMPED ON THE UNIT NAMEPLATE.

Table 81. Roof curb max weight (lbs./kg.)

Roof Curb Max. Weight(a)

Unit SAHL S*HL
Lb 490 510
20, 25, 30
Kg 222 231
Lb 515 550
40, 50, 55
Kg 234 249
Lb 610 640
60, 70, 75
Kg 277 290
Lb N/A 770
90-130
Kg N/A 349
(a) Roof curb weights include the curb and pedestal.

RT-PRC036T-EN 149
Options
Table 82. Comprehensive listing of available options and accessories(a)

Factory Enhanced Standard

Design Design Facility Field-installed
Option or Accessory Option Special(b)(c) Special(b)(c) Accessory
Coils
Complete Coat evaporator coils X
Black epoxy evaporator coils X
Copper finned evaporator coils (20 to 75 tons only) X
Corrosion protected condenser coil X
Copper finned air-cooled condenser coils X
High capacity evaporator coils (105 tons) X
High efficiency air-cooled condenser coils (90 tons) X
Controls
LonTalk® Communication Interface (LCI) X X
BACnet® Communication Interface (BCI) X X
Trane® Air-Fi™ Wireless Communications Interface (WCI) X
Generic BAS (Building Automation System) interface X X
Inter-Processor Communication Bridge X X
Kits available for field control upgrades X
No Controls X
Remote Human Interface Panel (controls up to four units) X
Remote minimum position control for economizer X
Fault detection and diagnostics with ultra low leak economizer option X
Single Zone VAV X
Rapid Restart X
Outside Air Measurement (Traq™) X
Trane® Communication Interface Module: ICS interface control module (TCI) X
Variable frequency drive (VFD) control of supply/exhaust fan motor X
Ventilation override module (five ventilation override sequences) X
Supply Fan Piezometer X
Curbs
Roof curbs X
Roof curbs-special design, including curbs for “twinning” large units together X
Dampers
0-25 percent manual dampers X
Barometric relief exhaust dampers X
Low ambient control dampers-0°F (20 to 75 tons) X
Low ambient control dampers (90 to 130 tons) X
Low leak dampers for 0-100 percent modulating outside air economizer X
Ultra low leak economizer and exhaust X
Drain Pans
Positively sloping evaporator coil drain pan X
Stainless steel positively sloping evaporator coil drain pan X
Economizer
0-100 percent modulating outside air economizer X
Economizer control options: comparative enthalpy, reference enthalpy, dry bulb X
Low or ultra low modulating outside aid economizer option X

150 RT-PRC036T-EN
 Options

Table 82. Comprehensive listing of available options and accessories(a) (continued)

Factory Enhanced Standard

Design Design Facility Field-installed
Option or Accessory Option Special(b)(c) Special(b)(c) Accessory
Energy Recovery
Energy Recovery Wheel X
Electrical
Convenience outlet (factory-powered 15A GFI) X
Dual power source X
Unit disconnect - through-the-door, non-fused disconnect with external handle X
Phase monitors (200/230/460/575V) (S_HL 20 to 75 tons) X
Phase monitors (460/575; S_HK 90 to 130 tons) X
Power factor correction capacitors - compressors and fans X
Evaporative Condenser (S_HL only)
Evaporative condenser X X
Sump heater X X
Dolphin WaterCare® system X X
Conductivity controller X X
Fans
100 percent modulating exhaust with or without Statitrac™ space pressure
X
control
100 percent modulating return with or without Statitrac space pressure control
X
(20 to 75 tons)
50 percent modulating exhaust X
eDrive™ direct drive plenum supply fans - 80% width and 120% width (20 to
X
75 tons)
Alternative supply fans X
Horizontal Return fans (20 to 75 tons) X
Filters, Filter Racks and Related Tools
90-95 percent bag filters X
90-95 percent cartridge filters X
90-95 percent bag or cartridge final filters and rack X
Filter rack only (no filters) X
Final filters, cartridge (SX only) X
Final filter rack only X
Filter rack - 4" deep panel rack placed in standard rack location X
High efficiency throwaway filters X
Replaceable core filter driers X
Differential pressure gauge X
Heat
Heat modules X
Heating options: natural gas, electric, hot water or steam X
Modulating Gas Heat - full or ultra X
Propane (LP) conversion / Modulating LP heat X
Insulation
Double wall with perforated interior liner X
Manville Tuf-Skin® insulation w/ 25/50 flame/smoke development rating X
Solid double wall X

RT-PRC036T-EN 151
Options

Table 82. Comprehensive listing of available options and accessories(a) (continued)

Factory Enhanced Standard

Design Design Facility Field-installed
Option or Accessory Option Special(b)(c) Special(b)(c) Accessory
Motors
40 & 50 hp 200 and 230 volt motors - supply fan X
Totally enclosed fan-cooled (TEFC) motors X
Totally enclosed non-ventilated (TENV) motors - Condenser fan only X
Motors with internal shaft grounding ring for VFD applications X
1.5 HP motor - exhaust fan X
Two-speed motors - supply fan X
Other
Access doors (hinged) X X
Burglar Bars X
eFlex™ Variable Speed Compressors (40 to 70 ton only) X
Digital Scroll Compressor (20 to 30 tons only) X
Extended grease lines X
Modulating hot gas reheat dehumidification (20 to 75 tons air-cooled only) X
Horizontal supply and return openings (SX,SL,SS,SL models only) X
Hot gas bypass to the evaporator inlet X
IntelliPak™ Replacement Unit (IRU) X
Outside air CFM compensation on VAV units with VFD and economizer X
Reversal of return/outside air sections with exhaust fans X
Safety grates installed over supply and return X
Special paint colors X
Spring isolators X
Suction service valves X
Ultra-extended cabinet to accommodate field-installed humidifiers, final filters,
X
sound attentuators, wing coils, air blenders, special filters, etc.
Vertical discharge, S_HL 20 to 75 tons (SX,SL,SS,SL models only) X
VFD line reactor X
VFD - Enclosure for field-installed VFD X
Sensors and Thermostats
Humidity sensor X
ICS zone sensors used with Tracer® system for zone control X
High duct temperature thermostats X
Outdoor temperature sensor for units without economizers X
Programmable sensors with night set back — CV and VAV X
Remote zone sensors — used for remote sensing with remote panels X
Sensors without night set back — CV and VAV X
Warranty
10 year limited warranty on Full and Ultra Modulation Gas Heat X
(a) Options are provided for informational purposes only. For specifics, contact your local Trane® sales office.
(b) Special options may be subject to a net price add.
(c) For information on agency approval for special designs, contact your local Trane® sales office.

152 RT-PRC036T-EN
Mechanical Specifications
General
Units shall be specifically designed for outdoor rooftop installation on a roof curb and be
completely factory assembled and tested, piped, internally wired, fully charged with R-410A
compressor oil, factory run tested and shipped in one piece. Units shall be available for direct
expansion cooling only, or direct expansion cooling with natural gas, electric, hot water or steam
heating. Filters, outside air system, exhaust air system, optional non-fused disconnect switches
and all operating and safety controls shall be furnished factory installed.
All units shall be UL listed to US and Canadian Safety Standards. Cooling capacity shall be rated
in accordance with AHRI Standard 360. All units shall have decals and tags to aid in service and
indicate caution areas. Electrical diagrams shall be printed on long life water resistant material and
shall ship attached to control panel doors.

Casing
Exterior panels shall be zinc coated galvanized steel, phosphatized and painted with a slate grey
air-dry finish durable enough to withstand a minimum of 500 hours consecutive salt spray
application in accordance with standard ASTM B117. Screws shall be coated with zinc-plus-zinc
chromate. Heavy gauge steel hinged access panels with tiebacks to secure door in open position
shall provide access to filters and heating sections.
Refrigeration components, supply air fan and compressor shall be accessible through removable
panels as standard. Unit control panel, filter section, and gas heating section shall be accessible
through hinged access panels as standard. Optional double wall construction hinged access doors
shall provide access to filters, return/exhaust air, heating and supply fan section. All access doors
and panels shall have neoprene gaskets. Interior surfaces or exterior casing members shall have
½ inch Manville Tuf-Skin® fiberglass insulation. Unit base shall be watertight with heavy gauge
formed load bearing members, formed recess and curb overhang. Unit lifting lugs shall accept
chains or cables for rigging. Lifting lugs shall also serve as unit tiedown points.

Refrigeration System
Compressors
The Trane® 3-D® scroll compressors have a simple mechanical design with only three major
moving parts. Scroll type compression provides inherently low vibration. The 3-D® scroll provides
a completely enclosed compressor chamber with optimized scroll profiles which leads to increased
efficiency. The 3-D® scroll includes a direct-drive, 3,600 rpm, suction gas cooled hermetic motor.
Dependent on the compressor model, motor protection is provided by either a patented motor cap
and integral line break motor protector or an external 24 VAC module which provides protection
against incorrect phase sequence, excess motor temperatures, over current protection, and
phase loss.
Trane® 3-D® compressor includes centrifugal oil pump, scroll tips seals, internal heat shield that
lowers the heat transfer from discharge and suction gas, oil level sight glass and oil charge valve.
Some compressor models also provide a dip tube that allows for oil draining, in addition to a low
leakage internal discharge check valve to help prevent refrigerant migration. Each compressor shall
have a crankcase heater installed, properly sized to minimize the amount of liquid refrigerant
present in the oil sump during off cycles.

eFlex™ Variable Speed Compressors (200/230/460/575V)

The Trane® eFlex™ variable speed compressor shall be capable of speed modulation from 25 Hz
to a maximum of 100 Hz. The minimum unit capacity shall be 15% of full load or less. The
compressor motor shall be a permanent magnet type. Each compressor shall have a crankcase
heater installed, properly sized to minimize the amount of liquid refrigerant present in the oil sump

RT-PRC036T-EN 153
Mechanical Specifications

during off cycles. Compressors shall be equipped with a thrust bearing oil injection system that
optimizes scroll set lubrication and controls the oil circulation rate. Optimal bearing lubrication
shall be provided by a gerotor oil pump.
Each variable speed compressor shall be matched with a specially designed variable frequency
drive which modulates the speed of the compressor motor and provides several compressor
protection functions. Control of the variable speed compressor and inverter control shall be
integrated with the IPak unit controller to ensure optimal equipment reliability and efficiency.

Phase Monitor
Standard on 20 to 75 tons air-cooled units. Protects 3-phase equipment from phase loss, phase
reversal and phase imbalance. Any fault condition shall produce a Failure Indicator LED and send
the unit into an auto stop condition. cULus approved.

Power Supplies
The 20 to 75 tons air-cooled rooftops are available with 200, 230, 460, and 575 voltage power
supplies and 90 to 130 tons units are available with 460 or 575 voltage power supplies.

Evaporator Coil
Internally enhanced copper tubing of 3/8 or ½-inch O.D. shall be mechanically bonded to heavy-
duty aluminum fins of configured design. All coils shall be equipped with thermal expansion valves
and factory pressure and leak tested.

Air-Cooled Condensing
Air-Cooled Condenser Coil
Condenser coils shall have all aluminum microchannel coils. All coils shall be leak tested at the
factory to ensure pressure integrity. The condenser coil is pressure tested to 650 psig. Subcooling
circuit(s) shall be provided as standard.

Air-Cooled Condenser Fans and Motors

All condenser fans shall be vertical discharge, direct drive fans, statically balanced, with aluminum
blades and zinc plated steel hubs. Condenser fan motors shall be three-phase motors with
permanently lubricated ball bearings, built-in current and thermal overload protection and
weather-tight slingers over motor bearings.

Air Handling System

Supply Fan
Supply fan motors are open drip-proof. All supply fans shall be dynamically balanced in factory.
Supply fan shall be test run in unit and shall reach rated rpm. All 60 Hz supply fan motors meet the
Energy Independence Security Act of 2007 (EISA). All 50 Hz supply fan motors meet the U.S. Energy
Policy Act of 1992 (EPACT).

20 to 75 Tons Air-Cooled with Forward Curved Supply Fan

Supply fans shall have two double-inlet, forward-curved fans mounted on a common shaft with
fixed sheave drive. Fans shall be factory-tested to reach rated rpm before the fan shaft passes
through first critical speed. Fan shaft shall be mounted on two grease lubricated ball bearings
designed for 200,000 hours average life. Optional extended grease lines shall allow greasing of
bearings from unit filter section. Fan motor and fan assembly shall be mounted on common base
to allow consistent belt tension with no relative motion between fan and motor shafts. Entire
assembly shall be completely isolated from unit and fan board by double deflection rubber-in-
shear isolators, or by optional 2" deflection spring isolation.

154 RT-PRC036T-EN
 Mechanical Specifications

20 to 75 Tons Air-Cooled with eDrive™ Direct-Drive Plenum Supply Fan

The eDrive™ direct drive plenum supply fan shall be [one] [two] single width, single inlet 9-blade
plenum fan. Fan blades shall be aluminum backward-inclined airfoil. Plenum fans shall be direct-
driven. Entire assembly shall be completely isolated from unit and fan board by 2" deflection spring
isolation. Multiple fan widths shall be available to optimize efficiency. Fan shall not require routine
maintenance such as fan bearing lubrication, belt tensioning and replacement, sheave alignment,
and setscrew torque checks.

90 to 130 Tons Air-Cooled

All supply fans shall have two independent fan assemblies with double inlet, air foil fan, motor and
fixed pitch sheave drive. All fans shall be statically and dynamically balanced and tested in factory.
Supply fans shall be test run in unit as part of unit test. Unit shall reach rated rpm before fan shaft
passes through first critical speed. Fan shafts shall be mounted on two grease lubricated ball
bearings designed for 200,000 hours average life.
Optional extended grease lines shall allow greasing of bearings from unit filter section. Fan motor
and fan assembly shall be mounted on common base to allow consistent belt tension with no
relative motion between fan and motor shafts. Entire assemblies shall be completely isolated from
unit and fan board by two-inch deflection spring isolators.

System Control
• Constant Volume Zone Temperature Control - Provided with all the necessary controls to
operate rooftop from a zone sensor, including CV microprocessor unit control module, a
microprocessor compressor controller and a unit-mounted human interface panel.
• Constant Volume with Discharge Temperature Control - Provided with all the necessary controls
to operate a CV rooftop with discharge air temperature control, including discharge air
microprocessor controller and discharge air sensor. The microprocessor controller coordinates
the economizer control and the stages of cooling with zone or outdoor air reset capabilities and
an adjustable control band to fine-tune the control to specific applications.
• CV Zone Temperature Control and Exhaust/Return Fan Variable Frequency Drives w/o Bypass
(with Statitrac Only) - Provided with all the necessary controls to control/maintain building
space pressure through a CV rooftop. The Variable Frequency Drive (VFD) modulates the speed
of the exhaust/return fan motor in response to building pressure.
A differential pressure control system, called Statitrac, uses a differential pressure transducer
to compare indoor building pressure to atmospheric pressure. The VFD receives a 0-10 VDC
signal from the unit microprocessor based upon the space static pressure and causes the drive
to accelerate or decelerate as required to maintain the space pressure within the deadband.
• CV Zone Temperature Control and Exhaust/Return Fan Variable Frequency Drives and Bypass
(with Statitrac Only) -Bypass control provides full nominal airflow in the event of drive failure.
• VAV Discharge Temperature Control with Variable Frequency Drives without Bypass - Provided
with all necessary controls to operate a VAV rooftop from the discharge air temperature,
including discharge air microprocessor controller and discharge air sensor.
The microprocessor controller coordinates the economizer control and the stages of cooling
with discharge air temperature reset capabilities. Includes factory-installed and tested variable
frequency drives (VFD) to provide supply fan motor speed modulation. VFD receives 0-10 VDC
from the unit microprocessor based upon supply static pressure and causes the drive to
accelerate or decelerate as required to maintain the supply static pressure setpoint.
• VAV Supply Air Temperature Control with Variable Frequency Drives and Bypass - Bypass
control provides full nominal airflow in the event of drive failure.
• Single Zone Variable Air Volume - Single Zone VAV option shall be provided with all necessary
controls to operate a rooftop unit based on maintaining two temperature setpoints: discharge
air and zone. Option shall include factory-installed variable frequency drive (VFD) to provide
supply fan motor speed modulation. During One Zone VAV cooling, the unit will maintain zone
cooling setpoint by modulating the supply fan speed more or less to meet zone load demand;

RT-PRC036T-EN 155
Mechanical Specifications

and the unit will maintain discharge temperature to the discharge cooling setpoint by
modulating economizer if available and staging dx cooling.

Controls
Unit shall be completely factory wired with necessary control and contactor pressure lugs or
terminal block for power wiring. Units shall provide an internal location for a non-fused disconnect
with external handle for safety. Unit-mounted microprocessor controls shall provide anti-short
cycle timing for compressors to provide a high level of machine protection.

Unit Controller
DDC microprocessor controls shall be provided to control all unit functions. The control system
shall be suitable to control CV or VAV applications. The controls shall be factory-installed and
mounted in the main control panel. All factory-installed controls shall be fully commissioned (run
tested) at the factory.
The unit shall have a human interface panel with a 16 key keypad, a 2 line x 40 character clear
English display as standard to provide the operator with full adjustment and display of control data
functions. The unit controls shall be used as a stand-alone controller, or as part of a building
management system involving multiple units.
• The unit shall be equipped with a complete microprocessor control system. This system shall
consist of temperature and pressure (thermistor and transducer) sensors, printed circuit boards
(modules), and a unit-mounted human interface panel. Modules (boards) shall be individually
replaceable for ease of service. All microprocessors, boards and sensors shall be factory
mounted, wired and tested.
The microprocessor boards shall be stand-alone DDC controls not dependent on
communications with an on-site PC or a Building Management Network. The microprocessors
shall be equipped with on-board diagnostics, indicating that all hardware, software and
interconnecting wiring are in proper operating condition.
The modules (boards) shall be protected to prevent RFI and voltage transients from affecting
the board’s circuits. All field wiring shall be terminated at separate, clearly marked terminal
strip.
Direct field wiring to the I/O boards is not acceptable. The microprocessor’s memory shall be
non-volatile EEPROM type requiring no battery or capacitive backup, while maintaining all data.
• Zone sensors shall be available in several combinations with selectable features depending on
sensor.
• The human interface panel’s keypad display character format shall be 40 characters x 2 lines.
The character font shall be 5 x 7 dot matrix plus cursor. The display shall be Supertwist liquid
crystal display (LCD) with blue characters on a gray/green background which provides high
visibility and ease of interface. The display format shall be in clear English. Two or three digit
coded displays are not acceptable.
• The keypad shall be equipped with 16 individual touch-sensitive membrane key switches. The
switches shall be divided into four separate sections and be password protected from change
by unauthorized personnel. The six main menus shall be STATUS, SETPOINTS, DIAGNOSTICS,
SETUP, CONFIGURATION and SERVICE MODE.

Filters
General
Filter options shall mount integral within unit and be accessible by hinged access panels.

156 RT-PRC036T-EN
 Mechanical Specifications

Differential Pressure Gauge

A factory-installed, dial-type, differential pressure gauge shall be piped to both sides of the filter
to indicate status. Gauge shall maintain a +/- 5 percent accuracy within operating temperature
limits of -20°F to 120°F. Gauge shall be flush-mounted with casing outer wall. Filter sections
consisting of pre- and post-filters shall have a gauge for each.

No Filters Option (two-inch throwaway filter rack only)

Shall provide a complete set of two-inch thick filter racks, without the filter media to accommodate
applications which require field supplied filters.

No Filters Option (bag/cartridge with pre-filter filter rack)

Shall provide a long-lasting galvanized steel frame without the filter media to accommodate
applications which require field supplied filters.

Pre-Evap Filter Options (Available for all units)

• Throwaway Filters, MERV 4 — Filters are 2" [50.8 mm] thick, UL Class 2, glass fiber type. Filters
rated at 80% average synthetic dust weight arrestance when tested in accordance with ASHRAE
52-76 and 52.1 test methods. Filters mounted in galvanized steel rack.
• Permanent Cleanable Wire Mesh Option, MERV 3 — Shall be washable permanent wire mesh
with metal frame.
• High Efficiency Throwaway Option, MERV 8 — Shall be two-inch high efficiency media filters
with average dust spot efficiency of 25-35 percent and an average arrestance in excess of 90
percent when tested in accordance with ASHRAE 52-76.
• 90-95 Percent Bag Filter Option, MERV 14 — Shall have glass fiber media mounted in a
galvanized steel frame. These Class 1 single piece disposable bag filters shall have a 90-95%
dust spot efficiency rating per ASHRAE 52-76. To ensure maximum bag filter life two-inch MERV
8 pre-filters shall be included with the bag filters.
• 90-95 Percent Cartridge Filter Option, MERV 14 — Twelve-inch deep cartridge filters shall be
mounted in a galvanized steel frame. Filters shall be Class 1 listed by Underwriters Laboratories
and have a 90-95% dust spot efficiency per ASHRAE 52-76. To ensure maximum cartridge filter
life, two-inch MERV 8 pre-filters shall be provided.

Final Filter Options (Available for SX Units only)

Final filter section filter options shall mount integral within the blank section unit casing and be
accessible by hinged access doors.
• 90-95 Percent, Cartridge, Final Filter Option, MERV 14
Note: Available on cooling only SX units
Twelve-inch deep cartridge filters shall be mounted in a galvanized steel frame. Filters shall be
Class 1 listed by Underwriters Laboratories and have a 90-95% dust spot efficiency per ASHRAE
52-76.
• 90-95 Percent, Cartridge Filter with two-inch pre-filters, Final Filter Option, MERV 14 Available
on cooling only SX units
To ensure maximum cartridge filter life, 2", MERV 8 pre-filters shall be included with the cartridge
filters. Pre-filters should be mounted in the same galvanized steel frame as the cartridge final filters.

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Mechanical Specifications

Exhaust Air
General
Return air options shall include no relief, barometric relief, 50 percent exhaust fan, 100 percent
modulating exhaust fan and 100 percent modulating exhaust fan with direct space building
pressurization control. Exhaust motors are open drip-proof fan cooled. All 60 Hz motors meet the
Energy Independence and Security Act of 2007 (EISA). All 50 Hz exhaust motors meet the U.S.
Energy Policy Act of 1992 (EPACT).

No Relief (standard)
Rooftops can be built for makeup air applications with no exhaust. Relief air opening shall be sealed
with panel and made watertight.

Barometric Relief Option

Gravity dampers shall open to relieve positive pressure in the return air section of the rooftop.
Barometric relief dampers shall relieve building overpressurization, when that overpressurization
is great enough to overcome the return duct pressure drops.

50 percent Exhaust Fan Option

One, double inlet, forward-curved fan shall be mounted rigidly to base with fixed sheave drive. Fan
shall be dynamically balanced and tested in factory. Unit shall reach rated rpm before fan shaft
passes through first critical speed. Fan shaft shall be mounted on two grease lubricated ball
bearings designed for 200,000 hours average life. Optional extended grease lines shall allow
greasing of bearings from unit filter section. Barometric dampers at fan outlet shall prevent air
backdraft. Fifty percent exhaust fan shall be an on/off control based on economizer OA damper
position.

Modulating 100 Percent Exhaust Fan Option

Two, double-inlet, forward-curved fans shall be mounted on a common shaft with fixed sheave
drive. All fans shall be dynamically balanced and tested in factory before being installed in unit.
Exhaust fan shall be test run in unit as part of unit test. Unit shall reach rated rpm before fan shaft
passes through first critical speed. Fan shaft shall be mounted on two grease lubricated ball
bearings designed for 200,000-hour average life.
Optional extended grease lines shall be provided to allow greasing of bearings from unit filter
section. Fan motor and assembly shall be mounted on common base to allow consistent belt
tension with no relative motion between fan and motor shafts. On motor sizes larger than five hp
entire assembly shall be completely isolated from unit and fan board by double deflection, rubber
in shear isolators or spring isolation. Discharge dampers at unit outlet shall modulate exhaust
airflow in response to OA damper position.

Modulating 100 Percent Exhaust Fan with Statitrac™ Control Option

Two, double-inlet, forward-curved fans shall be mounted on a common shaft with fixed sheave
drive. All fans shall be dynamically balanced and tested in factory before being installed in unit.
Exhaust fan shall be test run as part of unit final run test. Unit shall reach rated rpm before fan shaft
passes through first critical speed. Fan shaft shall be mounted on two grease lubricated ball
bearings designed for 200,000-hour average life.
Optional extended grease lines shall be provided to allow greasing of bearings from unit filter
section. Fan motor and assembly shall be mounted on common base to allow consistent belt
tension with no relative motion between fan and motor shafts. Entire assembly shall be completely
isolated from unit and fan board by double deflection, rubber in shear isolators or spring isolation
on motor sizes larger than five hp.

158 RT-PRC036T-EN
 Mechanical Specifications

For both CV and VAV rooftops, the 100 percent modulating exhaust discharge dampers (or VFD)
shall be modulated in response to building pressure. A differential pressure control system,
(Statitrac™), shall use a differential pressure transducer to compare indoor building pressure to
outdoor ambient atmospheric pressure. The FC exhaust fan shall be turned on when required to
lower building static pressure setpoint.
The (Statitrac™) control system shall then modulate the discharge dampers (or VFD) to control the
building pressure to within the adjustable, specified dead band that shall be adjustable at the
human interface panel.

Return Air
General
Return air options shall include 100 percent modulating return fan and 100 percent modulating
return with direct space building pressurization control. All 60 Hz motors meet the Energy
Independence and Security Act of 2007 (EISA). All 50 Hz exhaust motors meet the U.S. Energy
Policy Act of 1992 (EPACT).

100 Percent Modulating Return Fan

A single width plenum fan with airfoil blade shall be mounted on a shaft with fixed sheave drive.
The fan shall be dynamically balanced for the operating envelop and tested in factory before being
installed in unit. The plenum fan shall be test run in unit as part of unit test. Fan operating envelop
rpm shall be below first critical speed.
Fan shaft shall be mounted on two grease lubricated ball or roller bearings designed for 200,000-
hour average life. Extended grease lines shall be provided to allow greasing of bearings from
section base rail. Fan motor and assembly shall be mounted on common base to allow consistent
belt tension with no relative motion between fan and motor shafts. The entire assembly shall be
completely isolated from unit with 2-inch spring isolators. Discharge dampers at unit outlet shall
modulate relief airflow in response to OA / return air damper position.
A single width plenum fan with airfoil blade can relieve up to 100 percent supply air. The fan
operates in conjunction with the supply fan. The relief damper modulates in response to
economizer damper position on constant volume rooftops.

100 Percent Modulating Return Fan with Statitrac™ Control Option

A single width plenum fan with airfoil blade shall be mounted on a shaft with fixed sheave drive.
The fan shall be dynamically balanced for the operating envelop and tested in factory before being
installed in unit. The plenum fan shall be test run as part of unit final run test. Fan operating envelop
rpm shall be below first critical speed.
Fan shaft shall be mounted on two grease lubricated ball or roller bearings designed for 200,000-
hour average life. Extended grease lines shall be provided to allow greasing of bearings from
section base rail. Fan motor and assembly shall be mounted on common base to allow consistent
belt tension with no relative motion between fan and motor shafts. The entire assembly shall be
completely isolated from unit with 2-inch spring isolators.
Option shall be provided with all the necessary controls to control/ maintain building space
pressure through a VAV rooftop. The variable frequency drive (VFD) modulates the speed of the
return fan motor in response to return plenum pressure. The 100 percent modulating relief damper
shall be modulated in response to building pressure. A differential pressure control system,
(Statitrac), shall use a differential pressure transducer to compare indoor building pressure to
outdoor ambient atmospheric pressure. The (Statitrac) control system shall modulate the dampers
to control the building pressure to within the adjustable, specified deadband that shall be
adjustable at the human interface panel. The return fan shall modulate in response to return duct
static pressure. Optional bypass control provides full nominal airflow in the event of drive failure.

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Mechanical Specifications

Outside Air
General
Three outside air options: 100 percent return air, 0 to 25 percent manually controlled outside air,
and 0-100 percent fully modulating economizer.

Manual Outside Air Option

Manually controlled outside air damper shall provide up to 25 percent outside air. Manual outside
air damper shall be set at desired position at unit start-up.

0-100 Percent Modulating Economizer Option

Operated through the primary temperature controls to automatically utilize OA for “free” cooling.
Automatically modulated return and OA dampers shall maintain proper temperature in the
conditioned space. Economizer shall be equipped with an automatic lockout when the outdoor high
ambient temperature is too high for proper cooling.
Minimum position control shall be standard and adjustable at the human interface panel or with
a remote potentiometer or through the building management system. A spring return motor shall
ensure closure of OA dampers during unit shutdown or power interruption. Mechanical cooling
shall be available to aid the economizer mode at any ambient. Standard economizer dampers
leakage rate shall be 2.5 percent of nominal airflow (400 cfm/ton) at 1 inch wg. static pressure.

Low-Leak Economizer Dampers Option

Low leak dampers shall be provided with chlorinated polyvinyl chloride gasketing added to the
damper blades and rolled stainless steel jamb seals to the sides of the damper assembly. Low leak
economizer dampers shall have a leakage rate of one percent based on testing data completed in
accordance with AMCA Standard 500 at AMCA Laboratories.

Ultra Low-Leak Economizer Dampers Option

Economizer return and outside air dampers shall be provided with horizontal airfoil blades and
spring-return actuators. The economizer shall have a functional life of 60,000 opening and closing
cycles. Dampers shall be AMCA 511 Class 1A certified with a maximum leakage rate of
3 cfm/sq-ft at 1.0 in WC pressure differential thus exceeding requirements of ASHRAE 90.1-2013,
California Title 24-2013, and IECC-2012.
Fault Detection and Diagnostic (FDD) control will also be provided with Ultra Low Leak
Economizers. FDD control monitors the commanded position of the economizer compared to the
feedback position of the damper. If the damper position is outside +/- 10% of the commanded
position, a diagnostic is generated.
IntelliPak units ordered with ultra low leak economizers will be listed on the California Energy
Commission Registry for factory compliance with Title 24 Economizer and FDD requirements. A
label will be applied to the unit identifying construction with the ultra low leak economizer and FDD
controls.
Ultra low leak motorized exhaust dampers will be provided when the ultra low leak economizer is
ordered with an exhaust/return option that includes motorized dampers. Ultra low leak motorized
exhaust dampers will be AMCA 511 Class 1A certified with a maximum leakage rate of
3 cfm/sq-ft at 1.0 in WC pressure differential. This exceeds the most stringent requirements of
ASHRAE 90.1 and IECC (4 CFM/sq-ft at 1.0 in WC pressure differential).

Economizer Control with Comparative Enthalpy

Used with the outside air economizer, two enthalpy sensors are provided to compare total heat
content of the indoor air and outdoor air to determine the most efficient air source when
economizing.

160 RT-PRC036T-EN
 Mechanical Specifications

Economizer Control with Reference Enthalpy

Used with the outside air economizer, an outdoor enthalpy sensor is provided to compare the total
heat content of outdoor air to a locally adjustable setpoint. The setpoint is programmed at the
human interface, or remote human interface, to determine if the outdoor enthalpy condition is
suitable for economizer operation.

Economizer Control with Dry Bulb

Used with the outside air economizer, an outdoor temperature sensor is included for comparing
the outdoor dry bulb temperature to a locally adjustable temperature setpoint. The setpoint is
programmed at the human interface, or remote human interface, to determine if outdoor air
temperature is suitable for economizer operation.

Outside Air Measurement (Traq™)

A factory mounted airflow measurement station (Traq™) shall be provided in the outside air
opening to measure airflow. The airflow measurement station shall measure from 40 cfm/ton to
maximum airflow. The airflow measurement station shall adjust for temperature variations.
Measurement accuracy shall meet requirements of LEED IE Q Credit 1 as defined by ASHRAE 62.1-
2007.

Demand Control Ventilation

When equipped with a CO2 sensor and the (VCM) module, the fresh air damper position shall
modulate in response to a CO2 sensor in the conditioned space, in order to minimize the unit energy
consumption and simultaneously meet the ventilation requirements of ASHRAE Std 62.1. The
Traq™ airflow monitoring solution augments the system, allowing for measurement and control
of outside airflow.

Heating System
Electric Heating Option
All electric heat models shall be completely assembled and have wired electric heating system
integral within the rooftop unit. Heavy duty nickel chromium elements internally wired with a
maximum density of 40 watts per square inch shall be provided. Heater circuits shall be 48 amps
or less, each individually fused. Automatic reset high limit control shall operate through heater
backup contactors. The 460 and 575 volt electric units shall have optional factory mounted non-
fused disconnect switch located in the main control panel to serve the entire unit.
The 200 and 230 volt SEHL models shall have separate power supply to heating section.

Steam Heating Option

Steam coils shall be Type NS, with non-freeze steam distribution circuits. Distributor tubes shall be
located concentrically within condensing tubes to assure even steam distribution. Coils shall be
pitched to provide complete drainage. Steam modulating valve with actuator shall be provided.

Hot Water Heating Option

Hot water coils shall be Type 5W and factory mounted in the rooftop unit to provide complete
drainage of coil. Hot water modulating valve with actuator shall be provided.

Gas-Fired Heating Option

All gas-fired units shall be completely assembled and have a wired gas fired heating system
integral within unit. Units shall be cULus approved specifically for outdoor applications
downstream from refrigerant cooling coils. All gas piping shall be threaded connection with a pipe

RT-PRC036T-EN 161
Mechanical Specifications

cap provided. Gas supply connection shall be provided through the side or bottom of unit. All units
shall be fire tested prior to shipment.
• Heat exchanger shall be tubular two pass design with stainless steel primary and secondary
surfaces. Free floating design shall eliminate expansion and contraction stresses and noises.
Gasketed cleanout plate shall be provided for cleaning of tubes/turbulators. Heat exchanger
shall be factory pressure and leak tested.
• Burner shall be a stainless steel industrial type with an air proving switch to prevent burner
operation if the burner is open for maintenance or inspection. Staged and full modulating
burners have a ceramic cone that shapes the flame to prevent impingement on sides of heat
exchanger drum. Ultra modulating burner assembly shall house ignition and monitoring
electrode.
• Combustion blower shall be centrifugal type fan to provide air required for combustion. Fan
motor shall have built-in thermal overload protection.
• Gas safety controls shall include electronic flame safety controls to require proving of
combustion air prior to ignition sequence which shall include a pre-purge cycle. Direct spark
ignition shall be provided on 235 and 350 MBh heat exchangers and pilot ignition shall be
provided on 500, 850 and 1000 MBh heat exchanger units. Sixty second delay shall be provided
between first and second stage gas valve operation on two-stage heaters. Continuous
electronic flame supervision shall be provided as standard.
• Full and ultra modulating gas heaters shall be made from grades of stainless steel suitable for
condensing situations. The full modulating heater shall have turn down ratios for the following:
4 to 1 for 500MBh, 7 to 1 for 850MBh, and 8 to 1 for 1000MBh. The ultra modulating turn down
ratios: 14 to 1 for 500MBh, 18 to 1 for 850MBh, and 21 to 1 for 1000MBh.

Miscellaneous Options
• Ambient Control — Low ambient dampers are provided on condenser fan to allow the unit to
operate down to 0°F (20-75 ton).
• Supply Airflow Measurement (Piezometer) — Plenum supply fan shall have an airflow
measurement device to measure differential pressure and to calculate fan airflow. The device
shall be capable of measuring airflow within ± 5 percent total accuracy when operating within
the stable operating region of the fan curve. Fan airflow performance and noise levels shall not
be affected by the installation of the device. The fan inlet shall not be obstructed by the airflow
measurement device.
• IntelliPak™ Replacement Unit (IRU) — The IntelliPak™ replacement solution shall include a
condenser base pan, strengthening of the condenser section with welded reinforcement of
condenser base rail, as well as welded integral supports to the condenser base. This additional
strength shall allow the reuse of the existing pedestal as well as any Trane® full perimeter curb
and reduce installation risk and labor. Also optional with stainless steel.
• Non-Fused Disconnect Switch with External Handle — External handle enables the operator to
disconnect unit power with the control box door closed for safety.
• Hot Gas Bypass — Valve, piping and controls are all included on circuit 2 to allow operation at
low airflow, avoiding coil frosting and damage to compressor. When suction pressure falls
below valve adjustable setpoint, the valve modulates hot gas to the inlet of the evaporator.
• Modulating Hot Gas Reheat Dehumidification Control (available on S_HL units, air-cooled
condenser only) — A reheat condenser coil is factory installed downstream of the unit
evaporator coil. Modulating valves control the flow of refrigerant between the indoor reheat
and outdoor condensers in response to the unit discharge air temperature in order to
dehumidify the space. The modulating valve is always applied to circuit 1.
• Rapid Restart — Option shall provide immediate start-up upon power failure. A backup
generator is required on site before unit start-up. Rapid restart will begin immediately after

162 RT-PRC036T-EN
 Mechanical Specifications

recovery from a power loss and work by restarting the compressors and supply fan quickly,
providing full cooling within two to three minutes.
• High Duct Temperature Thermostats — Two manual reset thermostats, one located in the
discharge section of the unit set at 240°F and the other in the return section set at 135°F. The
rooftop will shut down if the thermostats are tripped.
• High Efficiency Units (20-75 ton) — Unit shall meet ASHRAE 189.1-2011 and CEE Tier 2
Commercial Unitary AC and HP Specification for utility rebate requirements.
• High Capacity Units — Units are made high capacity through the use of larger compressors that
provide higher refrigerant mass flow rates. All evaporative condensing units are high capacity
units.
• Corrosion Protected Condenser Coil — All aluminum microchannel condenser coil protection
shall consist of a corrosion resistant coating that shall withstand ASTM B117 Salt Spray test for
6,000 hours and ASTM G85 A2 Cyclic Acidified Salt Fog test for 2,400 hours. This coating shall
be added after coil construction covering all tubes, headers and fin edges, therefore providing
optimum protection in more corrosive environments.
• High Capacity Evaporator Coil — Additional rows of coil and enhanced evaporator tube
surfaces provide increased capacity compared to standard coils. (90 and 105 ton)
• High Efficiency Condenser Coil — Additional rows of coil provide increased efficiency
compared to standard coils. (90 ton)
• Internal Shaft Grounding Ring — Motors have internal bearing protection for use with VFDs to
provide a conductive discharge path away from the motor bearings to ground. Bearing
Protection Rings are circumferential rings with conductive micro fibers which provide the path
of least resistance and dramatically extend motor life.
• Generic Building Automation System Module (GBAS 0-5 VDC) — Provided for those cases
where non-Tracer® building management system is used. The GBAS module provides a binary
input for Demand Limiting, four (4) analog inputs for setpoint adjustment and five (5) relay
outputs for diagnostic reporting. Inputs can use a potentiometer or 0-5 VDC signal.
• Generic Building Automation System Module (GBAS 0-10 VDC) — Used to provide broad
control capabilities for building automation systems other than Trane’s Tracer® system. The
GBAS module provides a binary input for Demand Limiting, four (4) analog inputs for setpoint
adjustment and four (4) analog outputs as well as one (1) relay output for diagnostic reporting.
Inputs can use a potentiometer or 0-10 VDC signal.
• Remote Human Interface Panel (RHI) — Remote human interface panel can perform all the same
functions as unit-mounted human interface panel, except for the Service Mode. Up to 4 rooftop
units can be monitored and controlled with a single remote human interface panel.
This panel uses the same attractive enclosure as our Tracker™ building management system
control panel. With features such as a 2 line x 40 character clear English display, a red LED light
to indicate an alarm condition (alarm also shown on the two line display), a simple 16 key
keypad that is used in conjunction with the display, to prompt the infrequent user when making
desired changes and an attractive hinged door makes the RHI very suitable for mounting on any
wall. The RHI can be mounted inside a building, up to 5,000 feet from the unit. The RHI is wired
to the IPCB mounted in the rooftop with twisted wire pair communication wiring and 24V
control wiring.
• Ventilation Override Module (VOM) — With the ventilation override module installed, the unit
can be programmed to transition to up to 5 different programmed sequences for Smoke Purge,
Evacuation, Pressurization, Purge, Purge with duct control sequence and Unit off. The transition
occurs when a binary input on the VOM is closed (shorted); this would typically be a hard wired
relay output from a smoke detector or fire control panel
• Extended Grease Lines — Lines allow greasing of supply and exhaust fan bearings through the
filter access door.

RT-PRC036T-EN 163
Mechanical Specifications

• Access Doors — Hinged access doors provide easy access to supply fan, filters, exhaust fan,
and the heating section. These access doors feature double wall construction with dual density
insulation sandwiched between heavy gauge galvanized steel panels for strength and
durability.
• Inter-Processor Communication Bridge (IPCB) — This module provides an amplified and
filtered version of the IPC link for connection to a remote human interface panel. Each rooftop
that is tied into a remote human interface panel must have a IPCB installed into it.
• Trane® Communication Interface Module — provides interface to Trane’s Integrated Comfort
system (ICS), which allows control and monitoring of the rooftop by a Tracer® building
management system.
• Tracer® LonTalk® Communication Interface Module — provides control and monitoring of the
rooftop by Tracer® or to a 3rd party building management system utilizing LonTalk® protocol.
• BACnet® Communication Interface Module — provides control and monitoring of the rooftop
by Tracer® SC or a 3rd party building management system utilizing BACnet® protocol.
• GFI Convenience Outlet (Factory Powered) — A 15A, 115V Ground Fault Interrupter convenience
outlet shall be factory installed. It shall be wired and powered from a factory mounted
transformer. Unit-mounted, non-fused disconnect with external handle shall be furnished with
factory powered outlet.
• Two-Inch Spring Isolators — Supply and exhaust fan (if applicable) assemblies are isolated with
two-inch nominal deflection to reduce transmission of vibrations (standard feature on 90 to 130
tons).
• Special Unit Paint Colors — allows matching of HVAC equipment to building color and
sometimes eliminates the need for expensive barrier walls

Accessories
Roof Mounting Curb
Roof mounting curb shall be heavy gauge zinc coated steel with nominal two-inch by four-inch
nailer setup. Supply/return air opening gasketing shall be provided. Curb shall ship knocked down
for easy assembly. Channel shall be provided to allow for adjustment of return air opening location.
Curb shall be manufactured to National Roofing Contractors Association guidelines.

Electronic Zone Sensors

• Zone Sensors shall provide two temperature setpoint levers, Heat, Auto, Off, or Cool system
switch, Fan Auto or Fan On switch. Optional status indication LED lights, System On, Heat, Cool,
and Service shall be available. These sensors shall be used with CV units.
• Programmable Night Setback Sensors shall be electronic programmable sensors with auto or
manual changeover with 7 day programming. Keyboard shall provide selection of Heat, Cool,
Fan Auto or On. All programmable sensors shall have System On, Heat, Cool, Service LED/
indicators as standard. Night setback sensors shall have (1) Occupied, (1) Unoccupied and (2)
Override programs per day. Sensors shall be available for Zone Temperature Control and
Supply Air Temperature Control.
• Discharge Temperature Control sensor shall be provided with supply air single temperature
setpoint and AUTO/OFF system switch. Status indication LED lights shall include: System On,
Heat, Cool and Service. Sensor shall be provided for zone temperature control for daytime
warm-up heat mode.
• Remote Sensor shall be available to be used for remote zone temperature sensing capabilities
when zone sensors are used as remote panels.
• Fast Warm-Up Sensor shall be used as morning warm-up sensor for Discharge Temperature
Control units.

164 RT-PRC036T-EN
 Mechanical Specifications

• Integrated Comfort System sensors shall be available with sensor only, sensor with timed
override, and sensor with local temperature setpoint adjustment with timed override.
• Remote Minimum Position Potentiometer shall be available to remotely adjust the minimum
position setting of the unit’s economizer.
• Humidity Sensor - Monitors the humidity levels in the space for 1) Humidification and/or 2) Hot
Gas Reheat Dehumidification.
• Temperature Sensor - bullet or pencil type sensor that could be used for temperature input such
as return air duct temperature.

Field-Installed Kits
• Trane® Communication Interface/Interprocessor Communication Bridge kit and Remote
Human Interface kit - For future opportunities and upgrade flexibility, two factory provided
hardware kits are available. The Trane® Communication Interface (TCI) module is required for
communication with Tracer®. Included in this kit is an Interprocessor Communicating Bridge
(IPCB) module which is required for communication with a remote human interface panel.
• Remote Human Interface Panel kit - This kit can control up to four rooftops. The remote human
interface panel has all the features of the unit-mounted human interface panel, except no
service mode interface is allowed remotely for safety reasons. All other modules and their
required hardware are available through the Trane® service parts organization.
• Trane® LonTalk® Communication Interface kit - For future opportunities and upgrade flexibility,
this kit contains a LonTalk® Communication Interface (LCI-I) module, which is required for
communication with Tracer® Summit or a 3rd party building automation system.
• Trane® BACnet® Communication Interface kit - For future opportunities and upgrade flexibility,
this kit contains a BACnet® Communication Interface (BCI-I) module, which is required for
communication with Tracer® SC or a 3rd party building automation system
• Trane® Air-Fi™ Wireless Communications Interface (Field Installed) — Trane® Air-Fi Wireless
Communications Interface (WCI) provides wireless communication between the Tracer® SC,
Tracer® Unit Controllers, and BACnet® Communication Interface (BCI) modules.
Note: BCI required for operation

RT-PRC036T-EN 165
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creating and sustaining safe, comfortable and energy efficient environments, Trane offers a broad portfolio of advanced
controls and HVAC systems, comprehensive building services, and parts. For more information, visit www.Trane.com.

Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice.

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RT-PRC036T-EN 22 Jun 2015 We are committed to using environmentally
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