SKM Air Cooled Condensing Units

ACUV-N Series - R-134a

R-134a

ACUV-N Series
Air Cooled Condensing Units

Range 101 TR to 334 TR

(354 kW to 1174 kW)

Sharjah Economic Excellence

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AIR CONDITIONING EQUIPMENT

 SKM Air Cooled Condensing Units
ACUV-N Series - R-134a

Contents
Introduction........................................ 2 Field Connections............................15
Legend.............................................. 2 Field Wiring Requirement Schematic..15 Introduction
Nomenclature.................................... 2 Typical Wiring Diagram................... 16
General Features.............................. 3 Electrical Data............................ 17-19
ACUV-N Series environment friendly (R-134a)
Component Features......................... 3 Dimensional Data....................... 20-21
Control Panel..................................... 5 Loading Points................................. 22 Air Cooled Screw condensing unit are the latest
Microprocessor Controller..................5 Recommendations.......................... 23 innovation of SKM, designed and manufactured
Optional Features.............................. 6 Typical Refrigerant Piping............... 24 to provide utmost performance, efficiency,
Engineering Specification............... 8-9 Recommended Line Sizes.............. 25 reliability, to meet the requirements and long
Capacity Ratings........................ 10-13 Guide Specification.................... 27-28 life from Gulf’s severe climatic condition.
Selection Procedure........................ 14
SKM ACUV-N units are manufactured to meet
the requirements of the gulf severe climatic
conditions.
Legend
SKM ACUV-N Air Cooled Condensing unit
The following abbreviations are used throughout this manual:
are ideal for warehouses, large halls, schools,
BPF..... By-pass Factor MBh.... BTUH x 1000 mosques, or wherever the requirement calls
cfm ..... Cubic feet per minute Ph ....... Phase for a heavy duty unit with screw semi-hermetic
EER .... Energy Efficiency Ratio Pa ....... Pascals compressor.
Hz ....... Hertz PD ....... Pressure Drop
inwg .... Inches of water gauge PI ......... Power Input ACUV-N series Air Cooled Condensing unit
kW ...... Kilowatts RPM........Revolutions per Minute ( Semi-Hermetic Screw ) are available in 30
kg ......... kilogram TR ....... Tons of Refrigeration = 12 models covering nominal capacity ranges
lbs ........ Pounds weight ( British units ) MBh
V .......... Volt from 101 TR - 334 TR (354 kW to 1174 kW)
L/S ...... Liters per second
in 50Hz and 60Hz.

SKM ACUV-N Air Cooled Condensing unit

are rated in accordance with AHRI-365.

Nomenclature SKM ACUV-N series Air Cooled Condensing

units are used for commercial and industrial
applications where high efficient condensing
ACU V - 5 2 100 N Y
units are needed to match an indoor central
station AHUs or coils to get maximum
Air Cooled performance advantages of split sytem with
Power Supply Code
Condensing Unit Y: 380V-415V/3Ph/50Hz reasonable initial cost.
V-Series P: 440V/3Ph/50Hz
R: 380V/3Ph/60Hz
E: 460V/3Ph/60Hz
SKM ACUV-N series provide efficient
Power Supply 5 : 50Hz operation, wide range of design flexibility
T: 220V/3Ph/60Hz
Frequency 6 : 60Hz
coupled with packaged concept requiring
No. of Refrigerant Circuits least on-site work.

Semi hermetic Screw

Nominal Capacity (TR) Compressor (R-134a)
SKM provides qualified service and stock
of replacement parts in all major cities of the
G.C.C. countries, Egypt, Jordan, and Pakistan.
See back cover for details or call SKM.

SKM reserves the right to change, in part or in SKM Air Conditioning LLC
whole the specifications of its Air Conditioning
Equipment at any time in order to add the latest
technology. Therefore, the enclosed information
may change without any prior notice.
You name it.....We cool it
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SKM Air Cooled Condensing Units
ACUV-N Series - R-134a

General Features Condensers

The ACUV-N series is a modern, diversified and environment Condenser coils are manufactured of seamless copper tubes
friendly series of air cooled condensing unit which use R - 134a mechanically bonded to aluminum fins to ensure optimum heat
as refrigerant. transfer.

The complete ACUV-N condensing unit provides an extremely

rugged, heavy duty, long-life and energy efficient that will
provide higher efficiency over a long and extended life. What
makes ACUV-N series the pride of SKM products is the use of :

• Semi Hermetic Screw, heavy duty, energy efficient

compressors.
• Totally enclosed, Class F insulated, IP55 protected condenser
fan motor.
• Heavy duty condenser optimised in design for long-life
maintenance free operation.
• Cabinet construction specifically designed for Gulf climates. Condenser Coil
• IP 54 Electrical panel.
• Factory installed, advanced and user friendly microprocessor All coils are tested against leakage by air pressure of 450 psig
based control system. (3100 kPa) under water. All standard coils are 3 or 4 rows/14
• Interface capability with major BMS protocols (option). FPI, 3/8” (9.5 mm) O.D. tubes. An integral subcooling circuit
is provided to increase the cooling capacity, without additional
The SKM ACUV-N series air cooled condensing units are operating cost.
durable, dependable, strong, reliable, versatile, quiet and energy
efficient. Wherever a heavy duty condensing unit is required, the For different application requirements, other optional condenser
ACUV-N series should be an automatic choice. fin materials are available:

• Copper fins.
• Electrotinned Copper Fins.
• Copper finned coils with electro-tinned after manufacturing.
Component Features • Precoated Aluminum fins
The pre-coated is hydrophobic polyurethane resin. This
option provides substantial corrosion protection beyond
standard coil construction.
Compressor
• Aeris Guard Coil Coating
The Aeris Guard Coil is a self etching high performance
ACUV-N Series air cooled condensing unit uses high
modified epoxy finish that is specifically designed to coat
performance and high efficiency screw compressors which
and protect Aluminum and Copper surfaces. In addition, the
are double walled and robust in construction and have very few
coating is ideal for the protection of ferrous and non ferrous
moving parts. The lubrication circuit is designed as is typical for
materials.
the screw compressor in which oil is separated by a three stage
oil separator and a long life filter (10 μm mesh size) is used. Oil
SKM ACUV-N series, all models, are restricted to a 14 FPI
sight glass, oil fill / drain service valve, insertion type oil heater
(1.8 mm) fin spacing condenser coil. Gulf dust storms and
with sleeve, discharge shut - off valve and suction gas filter are
the general level of available maintenance in Gulf countries
availabe as standard. Additional features are as follows :
ensures this condenser coil design shall provide long life and
maintenance-free operation with the least possibility of
• Bearings are generously dimensioned to provide long life
operational blockage on the condenser. Ample condenser
operation. Main elements are the roller bearings for the
surface and sensible air flow across the condenser ensures a
radial forces combined with robust axial bearings arranged
low temperature differential between condensing temperature
in tandem configuration.
and the high Gulf ambients making the ACUV-N condensing
• Down to 50% capacity control and automatic start unloading units perform efficiently and durably.
are provided as standard.
• The compressor is protected by different devices and systems.
Protection devices include check valve in the discharge gas
outlet and differential pressure relief valve. The protection
system includes motor internal thermal protection, phase
sequence protection for direction of rotation, oil temperature
protection and manual reset button.

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AIR CONDITIONING EQUIPMENT
 SKM Air Cooled Condensing Units
ACUV-N Series - R-134a
Condenser Fans Refrigerant Pipe work
Condenser fans are propeller type, aluminium alloy blades, SKM ACUV-N series Condensing units are provided with
directly driven by electric motors. Motors are Totally Enclosed all internal piping, using ACR grade copper tubing, between
Air Over (TEAO) six pole with class ‘F’ insulation and minimum compressor and condenser.
IP55 protection. The TEAO and class ‘F’ insulation features
ensure long life and are unique for SKM. Loose supplied liquid line refrigerant controls are available as
an option for field installation (Please specify CRSP). When this
The motors are factory wired, using wires specially selected for option is ordered, the unit will be supplied with a correctly sized
high ambients operation, to unit control panel where the motor electronic expansion valve, liquid line solenoid valve, liquid line
contactors are located to control the operation of these motors. sight glass/moisture indicator and filter drier having flared or
soldered ends isolatable with one shut-off valve.
The condenser fans are individually statically and dynamically
balanced at the factory. Shut-off valve for the other side of the filter drier can be supplied
, if option CXFV is specified.

whether or not, these options are included, installation of solenoid

valve in the liquid line near the evaporator is mandatory for proper
Casing/Structure operation of the unit since the unit will switch off only after a pump
down cycle. Solenoid valve is to be interlocked with controller
Designed for ease of handling and low cost to install. The
as per terminals in the wiring diagram.
ACUV-N Air cooled condensing Units are factory assembled
and mounted on a rigid base. The unit casing used in ACUV-N
condensing units is made of zinc coated galvanized steel
sheets conforming to JIS-G3302 and ASTM A653 which is
phosphatized then baked after an electrostatic powder coat of
approximately 60 microns. Oil separator
This finish and coating pass a 1000 hours in 5 % salt spray testing
at 95°F (35°C) and 95% relative humidity as per ASTM B117. ACUV-N is incorporated with oil separator as standard to remove
oil from the discharge gas and return it to thecompressor.
The entire assembly comes complete with lifting holes on the
base frame for rigging and installation.

Options available include hot dipped galvanized base frame

and structural members aluminium/stainless steel panels are
available, on request, as options.

Refrigerant Charge
Condensing units are shipped with nitrogen holding charge only.

Piping connections Oil separator

ACUV-N air Cooled Condensing units piping connections come,
as standard, terminated with sealed and soldered copper pipe
ends.

Normal installation would require the cutting off (using roller-type

tube cutters) of the ends prior to connections being resoldered
and connected to the field supplied refrigerant pipework.

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SKM Air Cooled Condensing Units
ACUV-N Series - R-134a
Electronic Expansion Valve Microprocessor Controller
ACUV-N series should be incorporated with electronic expansion
valve for precise control efrigerant mass flow. Our electronic
expansionvalve improves EER (Energy Efficiency Ratio) at full
& part-loadconditions. Also it improves temperature control &
increases the range of operating conditions. precisely selected
valve will be provided, if CRSP option is requested.

Microprocessor control system is available for ACUV-N series

as a standard feature. Our high energy efficient unit has a full
function microprocessor controller unit designed to keep the
unit running at its most energy efficient level. It is a rugged
Electronic Expansion Valve microprocessor based controller that is designed for the hostile
environment of HVAC industry.
It provides flexibility with set points and control options that can
be selected prior to commissioning a system or when the unit is
Control Panel live and functioning. Displays, alarms and other interfaces are
accomplished in a clear and simple language that informs the
The unit mounted control panel enclosure is fabricated out of user as to the status of the system. It is designed to safeguard
heavy gauge sheet steel in phosphatized powder coated baked the system that is being controlled, eliminate the need for
finish. The enclosure conforms to IP54 as per guidelines in IEC manual intervention and to provide a simple but meaningful
529. A hinged access door and key-fastener is provided for easy man-machine-interface.
access and security. The panel is factory wired in accordance
with NEC 430 & 440, labeled, tagged and features 220V / 240V
controls. This controller provides complete operational control for the
unit and has built-in auto diagnostic capability that can signal
normal operation or alarm conditions as well as shutting down
• All compressors are with part winding start as standard. the unit or system, if necessary.
• Individual compressor and condenser fan motor contactors.
• Thermal magnetic circuit breakers for compressors and
condenser fan motors.
The Main Features of the controller are as follows:
• Voltage monitoring module for protection against under
voltage, over voltage, phase loss, phase reversal and phase • A large graphical LCD Display (2.8˝ diagonal) with back-lit
unbalance of the incoming voltage. that can be seen in bright or dim lighting.
• Circuit breaker for control circuit. • A nine button generic keypad that is so user friendly, it
rarely requires a reference manual.
• Microprocessor master board with graphical display.
• Microprocessor expansion boards as required. • Multiple authorization levels to provide tight security of the
control system.
• Control Relays.
• Two operating schedules per each day of the week and 8
• Control circuit on/off switch and pump down switches. holidays.
• Control terminal blocks and power terminal blocks/bus bars. • The system provides ‘last time’ enabled & disabled, number
of cycles, and total run hours.

• Pump-down at the beginning and end of every circuit cycle.

• Capacity control based on return air temperature. A special

control zone based on return air temperature that reduces
compressor cycling, and improves unit part load efficiency.

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AIR CONDITIONING EQUIPMENT
 SKM Air Cooled Condensing Units
ACUV-N Series - R-134a
Display Information
SKM ACUV-N unit offer a graphics LCD display which allows • Log of last 100 alarms.
the operator to access different parameters of the unit. Operator • Date and time.
can view and change the set point of unit parameters. The • Graphs of all inputs and outputs.
graphical display has lot of features, trending is one of the key
features of graphical display, which shows last 25 samples with
an appropriate scale to allow it to fit on the display.
System Protection
The well designed keypad with three function keys, four direction The following system protection controls will automatically act
keys and two selection keys allows the operator to navigate to insure system reliability and protection of the unit.
through different Menu, such as: • Low suction pressure protection.
• High discharge pressure protection.
• Status • High discharge temperature protection.
• Low discharge pressure protection.
• Outputs
• Low superheat protection.
• Inputs • High compressor ampere protection.
• Alarms • Compressor internal thermal protection.
• Under voltage, over voltage, phase loss, phase reversal
• Graphs
and phase unbalance protection.
• Setpoint • Air flow loss protection.
• Service tools • Sensor error protection.
• Lockout Reset • Pump down.
• Anti-recycle.
• Lockout Alarm
• Time delay between stages.
• Password • 4-Levels of passwords to restrict the intentional mishandling.

System Control Philosophy BMS Connectivity (Optional)

The unit may be enabled or disabled through the use of control
circuit ON/OFF switch in the control panel. Volt free contacts for run status, common fault status, auto
mode status and provision for remote on/off shall be provided
Control is based on return air temperature. How fast the as option if required.
temperature changes is calculated and capacity decisions are
based upon the rate, the current temperature, and the control In addition, the ACUVN microprocessor can support the major
temperature zone. Capacity is never added if the system is BMS protocols such as BACnet, Modbus & LON. Extra hardware
moving toward the temperature target at an acceptable rate. The may be required depending on the protocol.
unit will monitor all control functions and stage the compressor
to maintain the required operating capacity.

Optional Features
Easy Accessible Measurements Include: Alternative Condenser Material
• Status of the unit. Made of copper tubes and alternative fin material and/or protective
• Status of each circuit/compressor. coating.
• Status of condenser fans.
• For Pre Coated aluminum fins, specify (FAP).
• Return air temperature.
• For Aluminum Fins with Aeris Post Coat Protection, specify
• Suction pressure and temperature for each refrigerant
(FAA).
circuit.
• For Copper Fins, specify (FC).
• Discharge pressure and temperature for each refrigerant
• For Copper Fins with Aeris Post Coat Protection,specify
circuit.
(FCA).
• Suction and discharge superheat for each refrigerant circuit.
• For electrotinned Copper Fins only, specify (CFT).
• Ampere draw for each compressor.
• For Copper Finned Coils electrotinned post manufacturing,
• All active set points.
specify (FCT).
• Run time for each compressor.
• Number of compressor starts.
• Lockout and alarm status. Condenser Coil Guard (CGP)
• Status of voltage monitor, compressor internal motor Galvanized wire mesh frame with painted finish for condensers.
protector, oil level switch, run/stop input and pump down Recommended on ground level installations where coil needs
switches. to be protected against vandalism.

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SKM Air Cooled Condensing Units
ACUV-N Series - R-134a
Marine Paint (MP) BMS Interface Volt free Contacts (BMVF)
To provide increased corrosion resistance coastal environments Volt free contacts for run status, common fault status, auto mode
and offshore locations. status and provision for remote on/off shall be provided as option
if required. For additional requirements, please contact SKM.
Galvanized Frame And Base (GFB)
Steel frame and base which are hot dip galvanized BMS Interface thru protocol (BMSP)
after manufacturing process. This is recommended for highly For interfacing the units with major BMS protocols such as BACNet,
corrosive environments. Modbus or LON. Extra hardware may be required depending on
the protocol.
Pressure Gauges (SDG1)
Suction and discharge pressure indication of each refrigerant
circuit. Gauges are mounted outside the Control Panel

Isolated Condenser Fan Motor (CMS)

For elimination of extraneous noise and vibrations from condenser Options for Field Installations
fan motor, the motors are individually isolated from the frame.
Anti-vibration mounts (CAVM)
Low noise Fan and motor assembly (LNF) Recommended for roof mounted units or other locations in
Can be provided for applications where minimal unit sound is the vicinity of occupied spaces, where noise/vibration may be
required. objectionable.

Hi-Lo Gauges (CSDG1)

Pressure Relief Valve (PRV) Without piping or isolating pet cocks.
To protect the condensing unit from being over-pressurized.
Liquid Line Controls (CRSP)
IP-55 Control Panel (ICP) Comprises of correctly sized electronic expansion valve,
IP55 enclosure for extra protection against elements. suitable solenoid valve,filter drier,sight glass and one number
shut-off valve per circuit
Low Ambient Operation Kit (LAO)
For operation down to lower than normal Gulf ambients. It is Extra Shut Off Valve (CXFV)
also required for special applications. To fully isolate filter drier, an additional shut-off valve can be
incorporated in the liquid line. Must be ordered, if required, with
Voltage Monitoring Module as per DEWA (DVM) CRSP option.
To meet DEWA Regulations, modified module with time delay
relay. This option is available for Dubai, UAE only.
Special custom built units incorporating specially required features
Star – Delta Starter for Compressors (SDS) like units with anti-condensation resistance heaters embedded
To reduce the starting current of compressors using reduced in condenser motors and for off-shore application, special units
voltage starting method. Compressors will be started in Star & with stainless steel panels can be manufactured as per customer
after few seconds it will be changed over to Delta. requirement.

Main Isolator (ISO) Contact SKM for all such applications or requirements.
For the main Power Isolation. (consult SKM)

Ammeter & Phase Selector Switch (AMPC)

To indicate running AMPS of each compressor.

Ammeter & Phase Selector switch (AMPI)

To indicate running AMPS on main incomer of a unit.

Voltmeter & Selector Switch (VSS)

For incoming line voltage.

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AIR CONDITIONING EQUIPMENT
 SKM Air Cooled Condensing Units
ACUV-N Series - R-134a
ENGINEERING SPECIFICATIONS - 50 Hz
Model ACUV 52100-N 52110-N 52120-N 52130-N 52140-N 53150-N 53160-N 53170-N
Model ACUV 52100-N 52110-N 52120-N 52130-N 52140-N 53150-N 53160-N 53170-N
BTUH 1210000 1335000 1455000 1560000 1640000 1815000 1940000 2060000
Cooling Capacity (1) BTUH 1210000 1335000 1455000 1560000 1640000 1815000 1940000 2060000
Cooling Capacity (1) W 354631 391266 426436 457210 480657 531946 568581 603751
W 354631 391266 426436 457210 480657 531946 568581 603751
BTUH 1032900 1142450 1248750 1335500 1404900 1549350 516450 1032900
Cooling Capacity (2) BTUH 1032900 1142450 1248750 1335500 1404900 1549350 516450 1032900
Cooling Capacity (2) W 302726 334833 365988 391413 411753 454089 151363 302726
W 302726 334833 365988 391413 411753 454089 151363 302726
Type - Screw Compressor
Type - Screw Compressor
Quantity - 2 2 2 2 2 3 3 3
Compressor Quantity - 2 2 2 2 2 3 3 3
Compressor Oil Charge US Gal 4/4 5.8 / 4 5.8 / 5.8 5.8 / 5.8 5.8 / 5.8 4/4/4 5.8 / 4 / 4 5.8 / 5.8 / 4
Oil Charge US Gal 4/4 5.8 / 4 5.8 / 5.8 5.8 / 5.8 5.8 / 5.8 4/4/4 5.8 / 4 / 4 5.8 / 5.8 / 4
BSE 170P Ckt (A/B/C) Liter 15 / 15 22 / 15 22 / 22 22 / 22 22 / 22 15 / 15 / 15 22 / 15 / 15 22 / 22 / 15
BSE 170P Ckt (A/B/C) Liter 15 / 15 22 / 15 22 / 22 22 / 22 22 / 22 15 / 15 / 15 22 / 15 / 15 22 / 22 / 15
Type - Air cooled, 3 rows, 14 FPI (1.8mm) fin spacing, Hi X-Cu tubes, Al fins
Type - Air cooled, 3 rows, 14 FPI (1.8mm) fin spacing, Hi X-Cu tubes, Al fins
Condenser Coil ft² 208.0 208.0 208.0 240.0 240.0 312.0 312.0 312.0
Condenser Coil Face Area ft² 208.0 208.0 208.0 240.0 240.0 312.0 312.0 312.0
Face Area m² 19.3 19.3 19.3 22.3 22.3 29.0 29.0 29.0
m² 19.3 19.3 19.3 22.3 22.3 29.0 29.0 29.0
Type - Propeller direct drive 960 RPM
Type - Propeller direct drive 960 RPM
Code / Quantity - 829/8 829/8 829/8 829/8 829/8 829/12 829/12 829/12
Condenser Fan Code / Quantity - 829/8 829/8 829/8 829/8 829/8 829/12 829/12 829/12
Condenser Fan cfm 92080 92080 92080 93840 93840 138120 138120 138120
Air Flow Rate cfm 92080 92080 92080 93840 93840 138120 138120 138120
Air Flow Rate l/s 43457 43457 43457 44288 44288 65185 65185 65185
l/s 43457 43457 43457 44288 44288 65185 65185 65185
Type - Totally enclosed, air over Class F insulation, 6-pole, IP-55
Condenser Motor Type - Totally enclosed, air over Class F insulation, 6-pole, IP-55
Condenser Motor Size / Quantity kW 1.5/8 1.5/8 1.5/8 1.5/8 1.5/8 1.5/12 1.5/12 1.5/12
Size / Quantity kW 1.5/8 1.5/8 1.5/8 1.5/8 1.5/8 1.5/12 1.5/12 1.5/12
Refrigerant (R 134a) Operating Charge lbs 168 168 183 209 209 273 273 273
Refrigerant (R 134a) Operating Charge lbs 168 168 183 209 209 273 273 273
Per Circuit kg 76 76 83 95 95 124 124 124
Per Circuit kg 76 76 83 95 95 124 124 124
Number of Refrigerant Circuits - 2 2 2 2 2 3 3 3
Number of Refrigerant Circuits - 2 2 2 2 2 3 3 3
lbs 8957 9722 10551 11292 11316 14079 14848 15616
Unit Operating Weight lbs 8957 9722 10551 11292 11316 14079 14848 15616
Unit Operating Weight kg 4062 4409 4785 5121 5132 6385 6734 7082
kg 4062 4409 4785 5121 5132 6385 6734 7082

Model ACUV 53180-N 53190-N 53205-N 54220-N 54240-N 54260-N 54275-N

Model ACUV 53180-N 53190-N 53205-N 54220-N 54240-N 54260-N 54275-N
BTUH 2185000 2295000 2460000 2670000 2915000 3120000 3285000
Cooling Capacity (1) BTUH 2185000 2295000 2460000 2670000 2915000 3120000 3285000
Cooling Capacity (1) W 640387 672626 720985 782532 854338 914420 962778
W 640387 672626 720985 782532 854338 914420 962778
BTUH 1657300 624400 1248750 2284950 2497550 2671000 2809800
Cooling Capacity (2) BTUH 1657300 624400 1248750 2284950 2497550 2671000 2809800
Cooling Capacity (2) W 485727 183001 365988 669681 731990 782825 823505
W 485727 183001 365988 669681 731990 782825 823505
Type - Screw Compressor
Type - Screw Compressor
Quantity - 3 3 3 4 4 4 4
Compressor Quantity - 3 3 3 4 4 4 4
Compressor Oil Charge US Gal 5.8 / 5.8 / 5.8 5.8 / 5.8 / 5.8 5.8 / 5.8 / 5.8 5.8 / 5.8 / 4 / 4 5.8 / 5.8 / 5.8 / 5.8 5.8 / 5.8 / 5.8 / 5.8 5.8 / 5.8 / 5.8 / 5.8
Oil Charge US Gal 5.8 / 5.8 / 5.8 5.8 / 5.8 / 5.8 5.8 / 5.8 / 5.8 5.8 / 5.8 / 4 / 4 5.8 / 5.8 / 5.8 / 5.8 5.8 / 5.8 / 5.8 / 5.8 5.8 / 5.8 / 5.8 / 5.8
BSE 170P Ckt (A/B/C/D) Liter 22 / 22 / 22 22 / 22 / 22 22 / 22 / 22 22 / 22 / 15 / 15 22 / 22 / 22 / 22 22 / 22 / 22 / 22 22 / 22 / 22 / 22
BSE 170P Ckt (A/B/C/D) Liter 22 / 22 / 22 22 / 22 / 22 22 / 22 / 22 22 / 22 / 15 / 15 22 / 22 / 22 / 22 22 / 22 / 22 / 22 22 / 22 / 22 / 22
Type - Air cooled, 3 rows, 14 FPI (1.8mm) fin spacing, Hi X-Cu tubes, Al fins
Type - Air cooled, 3 rows, 14 FPI (1.8mm) fin spacing, Hi X-Cu tubes, Al fins
Condenser Coil ft² 312.0 360.0 360.0 416.0 416.0 480.0 480.0
Condenser Coil Face Area ft² 312.0 360.0 360.0 416.0 416.0 480.0 480.0
Face Area m² 29.0 33.4 33.4 38.6 38.6 44.6 44.6
m² 29.0 33.4 33.4 38.6 38.6 44.6 44.6
Type - Propeller direct drive 960 RPM
Type - Propeller direct drive 960 RPM
Code / Qty. - 829/12 829/12 829/12 829/16 829/16 829/16 829/16
Condenser Fan Code / Qty. - 829/12 829/12 829/12 829/16 829/16 829/16 829/16
Condenser Fan cfm 138120 140760 140760 184160 184160 187680 187680
Air Flow Rate cfm 138120 140760 140760 184160 184160 187680 187680
Air Flow Rate l/s 65185 66431 66431 86914 86914 88575 88575
l/s 65185 66431 66431 86914 86914 88575 88575
Type - Totally enclosed, air over Class F insulation, 6-pole, IP-55
Condenser Motor Type - Totally enclosed, air over Class F insulation, 6-pole, IP-55
Condenser Motor Size / Qty. kW 1.5/12 1.5/12 1.5/12 1.5/16 1.5/16 1.5/16 1.5/16
Size / Qty. kW 1.5/12 1.5/12 1.5/12 1.5/16 1.5/16 1.5/16 1.5/16
Refrigerant (R 134a) Operating Charge lbs 273 313 313 366 366 421 421
Refrigerant (R 134a) Operating Charge lbs 273 313 313 366 366 421 421
Per Circuit kg 124 142 142 166 166 191 191
Per Circuit kg 124 142 142 166 166 191 191
Number of Refrigerant Circuits - 3 3 3 4 4 4 4
Number of Refrigerant Circuits - 3 3 3 4 4 4 4
lbs 16372 17653 17693 20176 21715 3546 35344
Unit Operating Weight lbs 16372 17653 17693 20176 21715 3546 35344
Unit Operating Weight kg 7425 8006 8024 9150 9848 1608 16029
kg 7425 8006 8024 9150 9848 1608 16029
Table 1
1). Cooling capacity at 95°F (35°C) ambient temperature & 45°F (7.2°C) SST.
2). Cooling capacity at Gulf conditions : 115°F (46.1°C) condenser entering air temperature & 45°F (7.2°C) SST.
3). Operating charge is approximate for condensing unit only and does not include refrigerant lines and evaporator coil.
4). Condensing units are shipped with nitrogen holding charge only.

8
SKM Air Cooled Condensing Units
ACUV-N Series - R-134a
ENGINEERING SPECIFICATIONS - 60 Hz
Model ACUV 62120-N 62135-N 62150-N 62160-N 62170-N 63180-N 63195-N 63210-N
Model ACUV 62120-N 62135-N 62150-N 62160-N 62170-N 63180-N 63195-N 63210-N
BTUH 1475000 1630000 1780000 1905000 2005000 2210000 2365000 2520000
Cooling Capacity (1) BTUH 1475000 1630000 1780000 1905000 2005000 2210000 2365000 2520000
Cooling Capacity (1) W 432298 477726 521688 558324 587632 647714 693142 738570
W 432298 477726 521688 558324 587632 647714 693142 738570
BTUH 1260600 1395650 1526900 1633300 1719550 1890900 630300 763450
Cooling Capacity (2) BTUH 1260600 1395650 1526900 1633300 1719550 1890900 630300 763450
Cooling Capacity (2) W 369461 409042 447509 478693 503971 554191 184730 223754
W 369461 409042 447509 478693 503971 554191 184730 223754
Type - Screw Compressor
Type - Screw Compressor
Quantity - 2 2 2 2 2 3 3 3
Compressor Quantity - 2 2 2 2 2 3 3 3
Compressor Oil Charge US Gal 4/4 5.8 / 4 5.8 / 5.8 5.8 / 5.8 5.8 / 5.8 4/4/4 5.8 / 4 / 4 5.8 / 5.8 / 4
Oil Charge US Gal 4/4 5.8 / 4 5.8 / 5.8 5.8 / 5.8 5.8 / 5.8 4/4/4 5.8 / 4 / 4 5.8 / 5.8 / 4
BSE 170P Ckt (A/B/C) Liter 15 / 15 22 / 15 22 / 22 22 / 22 22 / 22 15 / 15 / 15 22 / 15 / 15 22 / 22 / 15
BSE 170P Ckt (A/B/C) Liter 15 / 15 22 / 15 22 / 22 22 / 22 22 / 22 15 / 15 / 15 22 / 15 / 15 22 / 22 / 15
Type - Air cooled, 4 rows, 14 FPI (1.8mm) fin spacing, Hi X-Cu tubes, Al fins
Type - Air cooled, 4 rows, 14 FPI (1.8mm) fin spacing, Hi X-Cu tubes, Al fins
Condenser Coil ft² 208.0 208.0 208.0 240.0 240.0 312.0 312.0 312.0
Condenser Coil Face Area ft² 208.0 208.0 208.0 240.0 240.0 312.0 312.0 312.0
Face Area m² 19.3 19.3 19.3 22.3 22.3 29.0 29.0 29.0
m² 19.3 19.3 19.3 22.3 22.3 29.0 29.0 29.0
Type - Propeller direct drive 1150 RPM
Type - Propeller direct drive 1150 RPM
Code / Quantity - 829/8 829/8 829/8 829/8 829/8 829/12 829/12 829/12
Condenser Fan Code / Quantity - 829/8 829/8 829/8 829/8 829/8 829/12 829/12 829/12
Condenser Fan cfm 108000 108000 108000 110560 110560 162000 162000 162000
Air Flow Rate cfm 108000 108000 108000 110560 110560 162000 162000 162000
Air Flow Rate l/s 50970 50970 50970 52179 52179 76455 76455 76455
l/s 50970 50970 50970 52179 52179 76455 76455 76455
Type - Totally enclosed, air over Class F insulation, 6-pole, IP-55
Condenser Motor Type - Totally enclosed, air over Class F insulation, 6-pole, IP-55
Condenser Motor Size / Quantity kW 2.2/8 2.2/8 2.2/8 2.2/8 2.2/8 2.2/12 2.2/12 2.2/12
Size / Quantity kW 2.2/8 2.2/8 2.2/8 2.2/8 2.2/8 2.2/12 2.2/12 2.2/12
Refrigerant (R 134a) Operating Charge lbs 216 216 232 267 267 351 351 351
Refrigerant (R 134a) Operating Charge lbs 216 216 232 267 267 351 351 351
Per Circuit kg 98 98 105 121 121 159 159 159
Per Circuit kg 98 98 105 121 121 159 159 159
Number of Refrigerant Circuits - 2 2 2 2 2 3 3 3
Number of Refrigerant Circuits - 2 2 2 2 2 3 3 3
lbs 9497 10260 11089 11898 11922 14952 15722 16489
Unit Operating Weight lbs 9497 10260 11089 11898 11922 14952 15722 16489
Unit Operating Weight kg 4307 4653 5029 5396 5407 6781 7130 7478
kg 4307 4653 5029 5396 5407 6781 7130 7478

Model ACUV 63220-N 63235-N 63250-N 64270 N 64295-N 64315-N 64335-N

Model ACUV 63220-N 63235-N 63250-N 64270 N 64295-N 64315-N 64335-N
BTUH 2670000 2800000 3010000 3260000 3560000 3810000 4015000
Cooling Capacity (1) BTUH 2670000 2800000 3010000 3260000 3560000 3810000 4015000
Cooling Capacity (1) W 782532 820633 882181 955451 1043376 1116647 1176729
W 782532 820633 882181 955451 1043376 1116647 1176729
BTUH 2024050 1260600 1526900 2791300 3053800 3266600 3439050
Cooling Capacity (2) BTUH 2024050 1260600 1526900 2791300 3053800 3266600 3439050
Cooling Capacity (2) W 593215 369461 447509 818083 895018 957386 1007928
W 593215 369461 447509 818083 895018 957386 1007928
Type - Screw Compressor
Type - Screw Compressor
Quantity - 3 3 3 4 4 4 4
Compressor Quantity - 3 3 3 4 4 4 4
Compressor Oil Charge US Gal 5.8 / 5.8 / 5.8 5.8 / 5.8 / 5.8 5.8 / 5.8 / 5.8 5.8 / 5.8 / 4 / 4 5.8 / 5.8 / 5.8 / 5.8 5.8 / 5.8 / 5.8 / 5.8 5.8 / 5.8 / 5.8 / 5.8
Oil Charge US Gal 5.8 / 5.8 / 5.8 5.8 / 5.8 / 5.8 5.8 / 5.8 / 5.8 5.8 / 5.8 / 4 / 4 5.8 / 5.8 / 5.8 / 5.8 5.8 / 5.8 / 5.8 / 5.8 5.8 / 5.8 / 5.8 / 5.8
BSE 170P Ckt (A/B/C/D) Liter 22 / 22 / 22 22 / 22 / 22 22 / 22 / 22 22 / 22 / 15 / 15 22 / 22 / 22 / 22 22 / 22 / 22 / 22 22 / 22 / 22 / 22
BSE 170P Ckt (A/B/C/D) Liter 22 / 22 / 22 22 / 22 / 22 22 / 22 / 22 22 / 22 / 15 / 15 22 / 22 / 22 / 22 22 / 22 / 22 / 22 22 / 22 / 22 / 22
Type - Air cooled, 4 rows, 14 FPI (1.8mm) fin spacing, Hi X-Cu tubes, Al fins
Type - Air cooled, 4 rows, 14 FPI (1.8mm) fin spacing, Hi X-Cu tubes, Al fins
Condenser Coil ft² 312.0 360.0 360.0 416.0 416.0 480.0 480.0
Condenser Coil Face Area ft² 312.0 360.0 360.0 416.0 416.0 480.0 480.0
Face Area m² 29.0 33.4 33.4 38.6 38.6 44.6 44.6
m² 29.0 33.4 33.4 38.6 38.6 44.6 44.6
Type - Propeller direct drive 1150 RPM
Type - Propeller direct drive 1150 RPM
Code / Qty. - 829/12 829/12 829/12 829/16 829/16 829/16 829/16
Condenser Fan Code / Qty. - 829/12 829/12 829/12 829/16 829/16 829/16 829/16
Condenser Fan cfm 162000 165840 165840 216000 216000 221120 221120
Air Flow Rate cfm 162000 165840 165840 216000 216000 221120 221120
Air Flow Rate l/s 76455 78268 78268 101941 101941 104357 104357
l/s 76455 78268 78268 101941 101941 104357 104357
Type - Totally enclosed, air over Class F insulation, 6-pole, IP-55
Condenser Motor Type - Totally enclosed, air over Class F insulation, 6-pole, IP-55
Condenser Motor Size / Qty. kW 2.2/12 2.2/12 2.2/12 2.2/16 2.2/16 2.2/16 2.2/16
Size / Qty. kW 2.2/12 2.2/12 2.2/12 2.2/16 2.2/16 2.2/16 2.2/16
Refrigerant (R 134a) Operating Charge lbs 351 401 401 465 465 536 536
Refrigerant (R 134a) Operating Charge lbs 351 401 401 465 465 536 536
Per Circuit kg 159 182 182 211 211 243 243
Per Circuit kg 159 182 182 211 211 243 243
Number of Refrigerant Circuits - 3 3 3 4 4 4 4
Number of Refrigerant Circuits - 3 3 3 4 4 4 4
lbs 17245 18630 18670 21384 22923 24738 24782
Unit Operating Weight lbs 17245 18630 18670 21384 22923 24738 24782
Unit Operating Weight kg 7821 8449 8467 9698 10396 11219 11239
kg 7821 8449 8467 9698 10396 11219 11239
Table 1 ends
1). Cooling capacity at 95°F (35°C) ambient temperature & 45°F (7.2°C) SST.
2). Cooling capacity at Gulf conditions : 115°F (46.1°C) condenser entering air temperature & 45°F (7.2°C) SST.
3). Operating charge is approximate for condensing unit only and does not include refrigerant lines and evaporator coil.
4). Condensing units are shipped with nitrogen holding charge only.

9
AIR CONDITIONING EQUIPMENT
 SKM Air Cooled Condensing Units
ACUV-N Series - R-134a
CAPACITY RATINGS - 50 Hz
Condenser Entering Air Temperature
Model SST 95°F (35°C) 105°F (40°C) 115°F (46°C) 125°F (52°C)
ACUV Total Capacity PI* Total Capacity PI* Total Capacity PI* Total Capacity PI*
°F °C MBh kW kW MBh kW kW MBh kW kW MBh kW kW
35 1.7 985.7 288.9 76.9 912.2 267.4 85.7 835.2 244.8 95.7 758.2 222.2 105.6
40 4.4 1093.6 320.5 79.7 1013 296.9 88.6 929.2 272.3 98.6 846 248 108.3
52100-N
45 7.2 1208.7 354.3 82.7 1120.5 328.4 91.8 1029.6 301.8 101.7 940.1 275.5 111.2
50 10 1330.9 390.1 86 1234.8 361.9 95.3 1136.6 333.1 105.1 1040.5 305 114.3
35 1.7 1094.6 320.8 87.6 1013.4 297 97.9 929 272.3 109.4 845.5 247.8 120.6
40 4.4 1210.4 354.8 90.9 1121.8 328.8 101.4 1030.6 302.1 112.8 941 275.8 123.7
52110-N
45 7.2 1333.7 390.9 94.4 1237.3 362.6 105.1 1139 333.8 116.4 1043.1 305.7 126.9
50 10 1464.4 429.2 98.4 1359.9 398.6 109.2 1254.3 367.6 120.3 1152.2 337.7 130.4
35 1.7 1200.5 351.9 98.8 1111.5 325.8 110.8 1020.1 299 123.8 930.3 272.7 136.1
40 4.4 1323.8 388 102.7 1227.3 359.7 114.8 1128.9 330.9 127.7 1033.2 302.8 139.5
52120-N
45 7.2 1454.9 426.4 106.9 1350.4 395.8 119.2 1245.1 364.9 131.8 1143.4 335.1 143.1
50 10 1593.6 467.1 111.5 1481.1 434.1 123.9 1368.6 401.1 136.2 1260.9 369.6 146.8
35 1.7 1283.9 376.3 105.8 1188.7 348.4 118.6 1090.9 319.7 132.5 994.9 291.6 145.6
40 4.4 1415.8 415 109.8 1312.5 384.7 122.9 1207.4 353.9 136.6 1105 323.9 149.3
52130-N
45 7.2 1555.9 456 114.3 1444.2 423.3 127.5 1331.5 390.3 141.1 1222.7 358.4 153.2
50 10 1704.3 499.5 119.3 1583.9 464.2 132.6 1463.6 429 145.7 1348.4 395.2 157.1
35 1.7 1354.3 396.9 114.4 1252.7 367.2 128.2 1149 336.8 143 1047.8 307.1 156.7
40 4.4 1492.3 437.4 118.9 1382.2 405.1 132.9 1270.9 372.5 147.5 1163.2 340.9 160.7
52140-N
45 7.2 1638.7 480.3 123.9 1519.8 445.5 138.1 1400.8 410.6 152.3 1286.6 377.1 164.8
50 10 1793.4 525.6 129.5 1665.6 488.2 143.6 1538.9 451 157.4 1418.3 415.7 168.9
35 1.7 1478.6 433.4 115.4 1368.3 401.1 128.5 1252.8 367.2 143.5 1137.3 333.3 158.5
40 4.4 1640.4 480.8 119.5 1519.5 445.4 132.9 1393.8 408.5 147.8 1269 371.9 162.5
53150-N
45 7.2 1813 531.4 124 1680.8 492.6 137.7 1544.4 452.7 152.5 1410.1 413.3 166.7
50 10 1996.4 585.1 129 1852.2 542.9 142.9 1704.8 499.7 157.6 1560.8 457.5 171.4
35 1.7 1588 465.4 126 1470 430.8 140.7 1347.1 394.8 157.2 1225 359.1 173.4
40 4.4 1757.8 515.2 130.6 1628.8 477.4 145.6 1495.7 438.4 162 1364.4 399.9 177.8
53160-N
45 7.2 1938.6 568.2 135.7 1798.1 527 150.9 1654.4 484.9 167.2 1513.7 443.7 182.5
50 10 2130.6 624.5 141.3 1978 579.7 156.7 1823.2 534.4 172.7 1673 490.4 187.5
35 1.7 1695.4 496.9 136.9 1569.6 460.1 153.2 1439.5 421.9 171.2 1311.1 384.3 188.6
40 4.4 1872.9 548.9 142.1 1735.9 508.8 158.7 1595.6 467.7 176.6 1458 427.3 193.4
53170-N
45 7.2 2061.7 604.3 147.8 1913.1 560.7 164.6 1762.1 516.5 182.2 1615.3 473.4 198.4
50 10 2261.9 663 154 2101.1 615.8 171 1939.2 568.4 188.3 1783.2 522.7 203.8
Table 2
Notes :
* Power input mentioned in this page should not be used for cable or fuse selection. MCA and MFA values given in the electrical data
pages (17-19) should be referred for the same.

Computer Print outs for matched ratings with SKM Air Handling Units are available.

10
SKM Air Cooled Condensing Units
ACUV-N Series - R-134a
CAPACITY RATINGS - 50 Hz
Condenser Entering Air Temperature
Model SST 95°F (35°C) 105°F (40°C) 115°F (46°C) 125°F (52°C)
ACUV Total Capacity PI* Total Capacity PI* Total Capacity PI* Total Capacity PI*
°F °C MBh kW kW MBh kW kW MBh kW kW MBh kW kW
35 1.7 1800.7 527.8 148.2 1667.3 488.7 166.2 1530.1 448.5 185.7 1395.5 409 204.1
40 4.4 1985.7 582 154 1840.9 539.6 172.3 1693.4 496.3 191.5 1549.9 454.3 209.3
53180-N
45 7.2 2182.3 639.6 160.3 2025.6 593.7 178.8 1867.6 547.4 197.7 1715 502.7 214.7
50 10 2390.5 700.6 167.2 2221.6 651.2 185.8 2052.9 601.7 204.3 1891.3 554.4 220.3
35 1.7 1890.2 554 154.4 1750.6 513.1 173.1 1606.9 471 193.5 1465.6 429.6 212.9
40 4.4 2084.9 611.1 160.3 1933.3 566.7 179.4 1778.7 521.3 199.6 1627.9 477.1 218.4
53190-N
45 7.2 2291.8 671.7 166.8 2127.8 623.7 186.1 1962 575.1 206 1801.6 528.1 224
50 10 2511.1 736 174 2334.2 684.2 193.4 2157.1 632.3 212.9 1987.1 582.4 229.8
35 1.7 2031.5 595.4 171.6 1879.1 550.8 192.4 1723.5 505.1 214.5 1571.7 460.7 235
40 4.4 2238.4 656.1 178.3 2073.3 607.7 199.4 1906.3 558.7 221.3 1744.8 511.4 241
53205-N
45 7.2 2458 720.4 185.8 2279.7 668.2 207.1 2101.2 615.9 228.5 1929.9 565.7 247.2
50 10 2690 788.5 194.3 2498.4 732.3 215.4 2308.3 676.6 236 2127.5 623.6 253.4
35 1.7 2189.2 641.7 175.2 2026.7 594 195.9 1858.1 544.6 218.9 1691 495.6 241.3
40 4.4 2420.8 709.5 181.7 2243.5 657.6 202.8 2061.2 604.1 225.7 1881.9 551.6 247.4
54220-N
45 7.2 2667.3 781.8 188.9 2474.5 725.3 210.3 2278 667.7 232.9 2086.3 611.5 253.9
50 10 2928.8 858.4 196.8 2719.8 797.2 218.4 2508.7 735.3 240.6 2304.5 675.4 260.8
35 1.7 2401 703.7 197.6 2223 651.6 221.6 2040.1 598 247.6 1860.6 545.4 272.1
40 4.4 2647.6 776 205.3 2454.5 719.4 229.7 2257.9 661.8 255.4 2066.5 605.7 279.1
54240-N
45 7.2 2909.7 852.8 213.8 2700.8 791.6 238.4 2490.2 729.9 263.6 2286.7 670.2 286.2
50 10 3187.3 934.2 223 2962.2 868.2 247.7 2737.2 802.3 272.4 2521.8 739.1 293.7
35 1.7 2567.9 752.6 211.5 2377.5 696.8 237.2 2181.8 639.5 264.9 1989.9 583.2 291.2
40 4.4 2831.7 830 219.6 2625.1 769.4 245.7 2414.7 707.8 273.3 2210 647.7 298.7
54260-N
45 7.2 3111.9 912.1 228.7 2888.4 846.6 255 2663.1 780.5 282.1 2445.5 716.8 306.3
50 10 3408.6 999.1 238.7 3167.8 928.5 265.1 2927.3 858 291.5 2696.9 790.5 314.2
35 1.7 2708.6 793.9 228.7 2505.4 734.3 256.5 2297.9 673.5 285.9 2095.6 614.2 313.3
40 4.4 2984.6 874.8 237.7 2764.5 810.3 265.9 2541.8 745 295 2326.4 681.9 321.4
54275-N
45 7.2 3277.3 960.6 247.8 3039.7 890.9 276.1 2801.6 821.2 304.6 2573.2 754.2 329.6
50 10 3586.7 1051.3 259 3331.2 976.4 287.2 3077.8 902.1 314.7 2836.7 831.4 337.8
Notes : Table 2 ends

* Power input mentioned in this page should not be used for cable or fuse selection. MCA and MFA values given in the electrical data
pages (17-19) should be referred for the same.

Computer Print outs for matched ratings with SKM Air Handling Units are available.

11
AIR CONDITIONING EQUIPMENT
 SKM Air Cooled Condensing Units
ACUV-N Series - R-134a
CAPACITY RATINGS - 60 Hz
Condenser Entering Air Temperature
Model SST 95°F (35°C) 105°F (40°C) 115°F (46°C) 125°F (52°C)
ACUV Total Capacity PI* Total Capacity PI* Total Capacity PI* Total Capacity PI*
°F °C MBh kW kW MBh kW kW MBh kW kW MBh kW kW
35 1.7 1199.4 351.5 91.7 1111.1 325.7 102.1 1018 298.4 114.1 924.4 271 126.3
40 4.4 1331.6 390.3 94.9 1234.6 361.9 105.5 1133.2 332.1 117.5 1032 302.5 129.5
62120-N
45 7.2 1472.8 431.7 98.5 1366.7 400.6 109.3 1256.5 368.3 121.2 1147.3 336.3 132.9
50 10 1623.1 475.7 102.3 1507.3 441.8 113.3 1388 406.8 125.1 1270.7 372.4 136.4
35 1.7 1333.1 390.7 104.3 1235.4 362.1 116.6 1133.4 332.2 130.4 1031.8 302.4 144.1
40 4.4 1475.3 432.4 108 1368.6 401.1 120.6 1258.1 368.7 134.4 1148.8 336.7 147.8
62135-N
45 7.2 1626.9 476.8 112.1 1510.6 442.8 124.9 1391.3 407.8 138.6 1274.2 373.5 151.6
50 10 1787.9 524 116.7 1661.6 487 129.6 1533.2 449.4 143.1 1408.2 412.8 155.6
35 1.7 1463.5 428.9 117.5 1356.4 397.6 131.7 1245.6 365.1 147.4 1136.2 333 162.5
40 4.4 1615.2 473.4 121.8 1498.8 439.3 136.3 1379.4 404.3 151.9 1262.5 370 166.6
62150-N
45 7.2 1776.6 520.7 126.6 1650.4 483.7 141.3 1522.3 446.2 156.8 1397.7 409.7 170.9
50 10 1947.8 570.9 131.9 1811.5 531 146.7 1674.4 490.8 161.9 1542.1 452 175.4
35 1.7 1565.5 458.9 125.7 1451 425.3 140.9 1332.4 390.5 157.7 1215.4 356.2 173.9
40 4.4 1727.8 506.4 130.3 1603.2 469.9 145.8 1475.5 432.5 162.6 1350.5 395.8 178.4
62160-N
45 7.2 1900.4 557 135.4 1765.4 517.5 151.2 1628.3 477.3 167.8 1495.1 438.2 183
50 10 2083.5 610.7 141.1 1937.7 568 157 1791.1 525 173.3 1649.6 483.5 187.6
35 1.7 1652.6 484.4 135.8 1530.2 448.5 152.3 1404.4 411.6 170.2 1280.9 375.4 187.1
40 4.4 1822.6 534.2 140.9 1689.7 495.3 157.7 1554.4 455.6 175.5 1422.6 417 192
62170-N
45 7.2 2003.2 587.1 146.6 1859.4 545 163.7 1714.4 502.5 181.2 1574.2 461.4 196.9
50 10 2194.4 643.2 153 2039.5 597.8 170 1884.7 552.4 187.1 1736.3 508.9 201.8
35 1.7 1799.1 527.3 137.6 1666.6 488.5 153.1 1526.9 447.5 171.1 1386.7 406.4 189.4
40 4.4 1997.4 585.4 142.4 1852 542.8 158.3 1699.8 498.2 176.3 1548 453.7 194.3
63180-N
45 7.2 2209.2 647.5 147.7 2050 600.9 163.9 1884.8 552.4 181.8 1721 504.4 199.3
50 10 2434.7 713.6 153.5 2260.9 662.7 169.9 2082 610.2 187.6 1906.1 558.7 204.5
35 1.7 1933.4 566.7 150.1 1791.5 525.1 167.5 1642.9 481.5 187.4 1494.5 438 207.2
40 4.4 2141.7 627.7 155.4 1986.5 582.3 173.2 1825.3 535 193.1 1665.3 488.1 212.5
63195-N
45 7.2 2364 692.9 161.3 2194.6 643.2 179.4 2020.2 592.1 199.1 1848.4 541.8 218
50 10 2600.2 762.1 167.7 2416 708.1 186.1 2227.9 653 205.5 2044.2 599.2 223.7
35 1.7 2065.5 605.4 163 1914.2 561 182.3 1756.7 514.9 204 1600.4 469.1 225.3
40 4.4 2283.5 669.3 168.8 2118.6 621 188.6 1948.4 571.1 210.2 1780.6 521.9 231
63210-N
45 7.2 2515.9 737.4 175.3 2336.5 684.8 195.4 2153.1 631.1 216.9 1973.6 578.5 237
50 10 2762.6 809.7 182.5 2568.1 752.7 202.8 2371.1 695 224 2179.9 638.9 243.2
Table 3
Notes :
* Power input mentioned in this page should not be used for cable or fuse selection. MCA and MFA values given in the electrical data
pages (17-19) should be referred for the same.

Computer Print outs for matched ratings with SKM Air Handling Units are available.

12
SKM Air Cooled Condensing Units
ACUV-N Series - R-134a
CAPACITY RATINGS - 60 Hz
Condenser Entering Air Temperature
Model SST 95°F (35°C) 105°F (40°C) 115°F (46°C) 125°F (52°C)
ACUV Total Capacity PI* Total Capacity PI* Total Capacity PI* Total Capacity PI*
°F °C MBh kW kW MBh kW kW MBh kW kW MBh kW kW
35 1.7 2195.2 643.4 176.3 2034.6 596.3 197.6 1868.4 547.6 221.1 1704.3 499.5 243.7
40 4.4 2422.7 710.1 182.7 2248.1 658.9 204.5 2069.1 606.5 227.9 1893.7 555.1 250
63220-N
45 7.2 2664.9 781.1 189.9 2475.6 725.6 212 2283.4 669.3 235.2 2096.5 614.5 256.4
50 10 2921.7 856.3 197.8 2717.3 796.4 220.1 2511.6 736.2 242.9 2313.2 678 263
35 1.7 2304.1 675.3 183.6 2136.2 626.1 205.8 1962.1 575.1 230.4 1789.9 524.6 254.3
40 4.4 2543.5 745.5 190.2 2360.9 692 212.9 2173.2 637 237.5 1989.1 583 260.8
63235-N
45 7.2 2798.4 820.2 197.6 2600.4 762.2 220.7 2398.8 703.1 245.1 2202.4 645.5 267.5
50 10 3068.8 899.5 205.9 2854.8 836.8 229.1 2639 773.5 253.1 2430.3 712.3 274.4
35 1.7 2478.9 726.6 203.7 2295.4 672.8 228.4 2106.6 617.4 255.2 1921.3 563.1 280.7
40 4.4 2733.9 801.3 211.3 2534.6 742.9 236.6 2331.6 683.4 263.3 2133.8 625.4 288
63250-N
45 7.2 3004.7 880.7 219.9 2789.2 817.5 245.5 2571.6 753.7 271.8 2361.4 692.1 295.3
50 10 3291.6 964.8 229.5 3059.2 896.7 255.1 2827 828.6 280.6 2604.4 763.3 302.7
35 1.7 2666.3 781.5 208.6 2470.8 724.2 233.1 2266.8 664.4 260.8 2063.5 604.8 288.2
40 4.4 2950.6 864.8 216.1 2737.1 802.3 241.1 2516.1 737.5 268.8 2297.6 673.4 295.6
64270 N
45 7.2 3253.7 953.7 224.3 3021.2 885.5 249.8 2782.6 815.6 277.3 2548.4 746.9 303.3
50 10 3575.7 1048 233.4 3323.3 974.1 259.1 3066.5 898.8 286.2 2816.4 825.5 311.2
35 1.7 2927 857.9 235 2712.8 795.1 263.5 2491.2 730.2 294.8 2272.4 666.1 325
40 4.4 3230.3 946.8 243.6 2997.5 878.6 272.6 2758.8 808.6 303.9 2525 740.1 333.3
64295-N
45 7.2 3553.1 1041.4 253.1 3300.8 967.5 282.6 3044.6 892.4 313.5 2795.4 819.3 341.9
50 10 3895.5 1141.8 263.8 3623 1061.9 293.5 3348.8 981.5 323.8 3084.2 904 350.7
35 1.7 3131.1 917.7 251.4 2901.9 850.5 281.9 2664.8 781.1 315.4 2430.8 712.5 347.8
40 4.4 3455.5 1012.8 260.6 3206.4 939.8 291.7 2951.1 865 325.2 2700.9 791.6 356.7
64315-N
45 7.2 3800.8 1114 270.8 3530.9 1034.9 302.4 3256.7 954.5 335.6 2990.1 876.4 365.9
50 10 4167 1221.4 282.2 3875.5 1135.9 314 3582.1 1049.9 346.5 3299.2 967 375.2
35 1.7 3305.2 968.8 271.6 3060.5 897 304.6 2808.8 823.3 340.3 2561.7 750.8 374.2
40 4.4 3645.2 1068.4 281.8 3379.5 990.5 315.5 3108.8 911.2 351.1 2845.1 833.9 384
64335-N
45 7.2 4006.3 1174.3 293.2 3718.9 1090 327.3 3428.8 1005 362.4 3148.5 922.8 393.8
50 10 4388.8 1286.4 306 4079 1195.6 340.1 3769.3 1104.8 374.2 3472.5 1017.8 403.5
Table 3 ends
Notes :
* Power input mentioned in this page should not be used for cable or fuse selection. MCA and MFA values given in the electrical data
pages (17-19) should be referred for the same.

Computer Print outs for matched ratings with SKM Air Handling Units are available.

13
AIR CONDITIONING EQUIPMENT
 SKM Air Cooled Condensing Units
ACUV-N Series - R-134a

Selection Procedure Capacity ratings are based on sea level operation. Above sea
level, apply the following corrections method.
Example
Actual capacity (at level) = Sea level capacity x altitude correction
The following information should be determined: factor (from Table 4).

1. Required total capacity = 2459 MBh (720 kW)

2. Saturated suction temperature = 50°F (10°C)
3. Condenser entering air temperature = 115°F (46°C)
4. Power Supply (V/Ph/Hz) = 380/3/50 Altitude Correction Factors
The unit ratings are based on sea level. Above sea level apply
Enter capacity ratings from Table 2 at 115°F (46°C) condenser the following correction factors:
entering air temperature and select model ACUV 54220-N
having a cooling capacity of 2508.7 MBh (735.3 kW) at 50°F Altitude Capacity Power
(10°C) saturated suction temperature, compressor motor power feet meter Multiplier Multiplier
input is 240.6 kW. For further details refer to physical data and 0 0 1 1
specifications sheets.
2000 610 0.99 1.01
4000 1219 0.98 1.02
6000 1829 0.97 1.03
8000 2438 0.96 1.04
10000 3048 0.95 1.05
Table 4

14
SKM Air Cooled Condensing Units
ACUV-N Series - R-134a

Field Connections
ACUV-N series self-contained heavy duty air cooled condensing units are designed for minimum field interaction.

Power hook-ups for AHU starter and fan interlock and control wiring of room thermostat and duct sensor as per Electrical hook-up
diagram is all that is required to electrically connect any model of ACUV-N series .

Every ACUV-N series condensing unit requires, at most, field installed fused disconnect switches or circuit breakers, thermostat / sensor
Refer below for a schematic representation of required field electrical hook-ups for a standard ACUV-N series condensing unit.

All field wiring must be done in accordance with applicable local and national codes.

For maximum recommended fuse sizes and minimum circuit amps for cable sizing, see Page 17~19 of this bulletin.

The ACUV-N series is then ready to provide cooling, on demand.

Field Wiring Requirement Schematic

L1 L2 L3 N
**
L N L1 L2 L3 N

3 PHASE,
3 WIRE SYSTEM
440V/3PH/50HZ CIRCUIT BREAKER
220V/3PH/60HZ OR FUSED CIRCUIT BREAKER
460V/3PH/60HZ DISCONNECT SWITCH OR FUSED
(NOT BY SKM) DISCONNECT SWITCH
(NOT BY SKM)

3 PHASE,
4 WIRE SYSTEM
380-415V/3PH/50HZ
L1
L2
380V/3PH/60HZ
L3
N

GROU ND 3 PHASE,
4 WIRE SYSTEM
E
380-415V/3PH/50HZ
L1 380V/3PH/60HZ
L2

CUSTOMER SUPPLIED
EFM STARTER INTERLOCK TO AHU AND INSTALLED
AHU STARTER BOX
(BY OTHERS) FIELD ACCESSORY
(CONTACTOR, OVERLOAD
RELAY & ON/OFF CONTROL etc.)

DOL/STAR DELTA
FAN INTERLOCK FROM AHU

THERMOSTAT
2 CORE SHIELD
CABLE (BY OTHERS)
Ac tu al
Coo l U
M
Hea t

SET
V
W 3~
DUCT SYSTEM FAN

SENSOR O FF AUT O

AU TO

SCHD
ON
+
-
E
M + 12
CS
Ala rm
Gnd
AIR HANDLING UNIT

LINE VOLTAGE
FIELD WIRING
ACUV N-SERIES
CONTROL PANEL 2 CORE SHIELD LOW VOLTAGE
CABLE (BY OTHERS) FIELD WIRING
REFER ACTUAL WIRING DIAGRAM
FURNISHED WITH THE UNIT FOR
EXACT IDENTIFICATION OF WIRE NUMBERS.

**ACUV N SERIES UNITS RATED FOR 440V/3PH/50HZ, 460V/3PH/60HZ, OR POWER SUPPLIES WITH OUT NEUTRAL
REQUIRE SEPARATE SOURCE OF CONTROL POWER SUPPLY THRU FIELD SUPPLIED & INSTALLED 15A/220V FUSED
CONTROL DISCONNECT SWITCH OR ORDER WITH FACTORY BUILT IN OPTION ' CXT '.

15
AIR CONDITIONING EQUIPMENT
16
* *L1 POWER SUPPLY
L2
L3
N CT1 CT2 F

CB1 CB2

MPCB1 MPCB2 MPCB3 MPCB4 MPCB5 MPCB6 MPCB7 MPCB8

N L1
I> I> I> I> I> I> I> I> I> I> I> I> I> I> I> I> I> I> I> I> I> I> I> I>
C1 C2 C3 C4
CM1 CM2
1 7 1 7 C5 C6 C7 C8 C9 C10 C11 C12
2 M3~ 8 2 M3~ 8
3 9 3 9 VMM
A B C
R2 CCH1 R2 CCH2
NC Com NO

T1
T1
CFM1 CFM2 CFM3 CFM4 CFM5 CFM6 CFM7 CFM8

T2
T2
R1 R1

3
4
5
3
4
5

11
12
11
12
MCB1

SV1 SV4
VOLTFREECONTACTTO
L1 L2 L3 1 2 L1 L2 L3 1 2 AHUPANEL
Typical Wiring Diagram

N L N L

SE-E1 SE-E1
RPB1 RPB2
12 12

11 11
14 14 CR4

SOL. VALVE (25%)

SOL. VALVE (25%)
C1 C3
MP1 MP2

MCB2
EFM STARTER INTERLOCK

CR1 CR2 C2 C4 SV2 SV3 SV5 SV6

C1 C2 CR1 C3 C4 CR2 C5 C6 C7 C8 C9
DISPLAY/KEYPAD
CFM-1
CFM-2
CFM-3
CFM-4
CFM-5

(BY OTHERS)
N

FAN INTERLOCK FROM AHU PANEL

OSL1 OSL2 F1 F2 F3
1 2 3
FUSE
L 11 L 11

COMP-2A
COMP-2B

COMP- 1A
COMP- 1B
LSV 1

LOAD SOL. VALVE

UNLOAD SOL. VALVE
LOAD SOL. VALVE
UNLOAD SOL. VALVE
LSV 2
Com NO NC Com NO NC Com NO NC Com NO NC Com NO NC L1 L2 Gnd
N 12 1 4 N 12 14 230V

4
RELAY-1 RELAY-2 RELAY-3 RELAY-4 RELAY-5 POWER

C1 C3

LSV1 LSV2 5 6
SPARE
FUSE
RELAYOUTPUTEXPANSIONBOARD 1
ORV1 ORV2
7

RELAY-6 RELAY-7 RELAY-8 RELAY-9 RELAY-10 MCS I/ O

Menu
8
CR3 NC NO COM NC NO COM NC NO COM NC NO COM NC NO COM + - GND
Com NO NC Com NO NC Com NO NC Com NO NC Com NO NC Com NO NC Com NO NC Com NO NC Com NO NC Com NO NC L1 L2 Gnd

RELAY-1 RELAY-2 RELAY-3 RELAY-4 RELAY-5 RELAY- 6 RELAY-7 RELAY-8 RELAY-9 RELAY-10
A B
Brown

485-
Blue D

485+
230V C
Purple

SDA
CFM-6
CFM-7
CFM-8

Yellow

SCL
KEYPAD
Black

GND
Red
THERMOSTAT

+ 12V
EFM STARTER INTERLOCK

Actual
Cool
Heat
C10 C11 C12 CR4
SET

A2 Gnd A1
SYSTEM FAN
LEGEND

ANALOGOUTPUTS
MICROPROCESSOR MP-1 MP-2 OFF AUTO
2CORESHIELD
AUTO ON
CABLE(BYOTHERS)
F POWERCIRCUITFUSE +
SCHD
-
+ 12 Volts

N N
11 11
+ 12 Gnd

C CONTACTOR MAIN BOARD +

ACUV-N Series - R-134a

L L Alarm -
S1 S2

CR3
CB CIRCUITBREAKER VMM VOLTAGEMONITORINGMODULE OLS1 OLS2
14 14
- Gnd

A4 Gnd A3
CCH CRANKCASEHEATER OSL OIL SEPARATORLEVEL SWITCH
RS-485

ANALOGOUTPUTS
+

RUN/STOP CS
CF CONTROL FUSE ORV OIL RETURNVALVE 2CORESHIELD
CABLE(BYOTHERS)
N

CFM CONDENSERFANMOTOR OLS OIL LEVEL SWITCH

B
- Gnd

MCSI/O

FUSE

DIGITALINPUTS
CM COMPRESSORMOTOR RPB A
+

RESET PUSHBUTTON

DI2 + 5 DI1 + 5
SI Gnd + 5 SI Gnd + 5 SI Gnd + 5 SI Gnd + 5 SI Gnd + 5 SI Gnd + 5 SI Gnd + 5 SI Gnd + 5 + 12 Gnd+ 12 L1 L2 Gnd
CR CONTROL RELAY S MANUAL PUMPDOWNSWITCH SENSOR 1 SENSOR2 SENSOR 3 SENSOR4 SENSOR5 SENSOR 6 SENSOR7 SENSOR 8 + 12Volts 230V
POWER
SS SENSOR 1 SENSOR 2 SENSOR 3 SENSOR 4 SENSOR 5 SENSOR 6 SENSOR 7 SENSOR 8 SENSOR 9 SENSOR 10 SENSOR 11 SENSOR 12 Digital Digital Digital Digital Digital Digital Digital Digital
CS CONTROL SWITCH SELECTORSWITCH Analog Analog Analog Analog Analog Analog Analog Analog Analog Analog Analog Analog Analog Analog Analog Analog Analog Analog Analog Analog
CT CURRENT TRANSFORMER MCB MINIATURECIRCUITBREAKER Digital Digital Digital Digital Digital Digital Digital Digital Digital Digital Digital Digital

DI4 + 5 DI3 + 5
DIGITAL INPUTS
+ 5 Gnd SI + 5 Gnd SI + 5 Gnd SI + 5 Gnd SI + 5 Gnd SI + 5 Gnd SI + 5 Gnd SI + 5 Gnd SI + 5 Gnd SI + 5 Gnd SI + 5 Gnd SI + 5 Gnd SI ETHERNET
HP HIGHPRESSURE

VMM
MP MOTORPROTECTOR SENSORINPUTEXPANSIONBOARD 1
SPARE
LP LOWPRESSURE FIELDWIRING FUSE

Digital Digital Digital Digital Digital Digital Digital Digital

Analog Analog Analog Analog Analog Analog Analog Analog
PROVIDE OVERCURRENT, EARTH FAULT PROTECTION, SHORT CIRCUIT AND SENSOR 9 SENSOR10 SENSOR 11 SENSOR12 SENSOR13 SENSOR14 SENSOR15 SENSOR 16 ANALOGOUTPUTS
MCS I/ O
** DISCONNECT MEANS ASREQUIRED BYLOCAL & NATIONAL ELECTRICCODE. + 5 Gnd SI + 5 Gnd SI + 5 Gnd SI + 5 Gnd SI + 5 Gnd SI + 5 Gnd SI + 5 Gnd SI + 5 Gnd SI A1 Gnd A2 A1 Gnd A2 + - GND
2CORESHIELD
CABLE(BYOTHERS)
COMP.-1 COMP.- 2 COMP.- 1 COMP.-2 COMP-1 COMP-2 COMP-1 COMP-2
DUCT SUCTION SUCTION DISCH. DISCH. SUCTION SUCTION DISCH. DISCH. AMPS AMPS C D
SENSOR PRESSURE PRESSURE PRESSURE PRESSURE TEMP. TEMP. TEMP. TEMP. COMP-1 COMP-2
(LOOSE SUPPLY) CT-1 CT-2
F
E
SKM Air Cooled Condensing Units
 SKM Air Cooled Condensing Units
ACUV-N Series - R-134a POWER SUPPLY 380V-415V/3PH/50Hz
Unit Characteristics Compressor Condenser Fan Motor
Model ACUS
ELECTRICAL
MFA DATA
MCA ICF QTY RLA Each LRA Each Q380~415/3/50
TY FLA Each LRA Each
51008 40 24 107 1 15 98 POWER380~415/3/50
1SUPPLY 380V-415V/3PH/50Hz
2.4 8.9
51009 50 3 1 1 4 7 1 19 130 1 3 . 9
Model Unit Characteristic
Unit Characteristics CompCompressor
ressor Condenser
CondensFan n Motor 7.2
er FaMotor 1
Model ACUS51012
Model 63 35 Characteristic
Unit 162 1 23 Compressor 145 1
Condenser Fan3.9 Motor 17.2
ACUV RLA Each28 LRA Each
51014 MFA MCA 43 ICF 186 QTY 1
80 MFA 175 QTY2 FLA E2.a4ch LRA8E.9ach
ACUV MCA ICF QTY15 RLA LRA
98 98
QTY FLA LRA
51008 52015 40 63 MFA 24 41 107 124 1 2 15 12 2.24.4 88.9.9
52100-N MCA ICF QTY RLA LRA QTY FLA LRA
51009 52019 50 80 500 31 54 14311 7 170 1 5912 2 19 19 124 423130
130 8 12 3.963.39.9 16.5
1177.2.2
52100-N
52110-N
51012 52024 63 100 500 35 61 16311
500 353
2 189 1 591
6332 1 2+ 213 23 124124 + 166 4231423
4+514520
5 88 1 2 3.96
3.963.39.9 16.5
16.5
1177.2.2
52110-N
52120-N
51014 52025 80 100 500 43 69 18353
630 405
6 194 1 633
7302 1 +2 218 24 124166 + 166 4231520
7+514520
5 88 2 3 3.96
3.962 .
34. 9 16.5
16.5
81.79.2
52120-N
52015 52028 63
52130-N 125 630 41 78 12405
630 4 228
430 2 730
8222 1 2+ 115 28 186166 + 166 6129520
8+17520
5 88 2 3 3.96
3.962.34.9 16.5
81.79.2
16.5
52034
52019 52130-N 80
52140-N 125 630 54
800 88 17430
0
450 2 68 2 822 1+1
842 1 +2 11937 + 28 186186 + 166 215
6121612 +
3+0 520 175
88 2 3 3
3.963.9
3.96 . 9 1177.2.2
16.5
16.5
52024 52039 1 00
52140-N 160 61 97 189 277
800 450 2 8422 23 37 45215
1612 8 23 3.39.9 1177.2.2
53150-N 630 451 731 2 2+ 1 46 + 37 124186 + 124 423270 + 423 12 3.96
3.96 16.5
16.5
52025 52045 100 160 69 113 194 336 2 1+1 24 145 + 215 34 3.39.9 1177.2.2
53150-N
53160-N
52049 200 800
630 122 451 503 731
828 21 ++ 12 46 124 166 ++ 124
124 423
52017++527423
423
0 12
12 4 3.96
3.96 3.9 16.5
16.5
52028 125 78 228 345 2 2 28 3 3.9 1177.2.2
53160-N
53170-N 160 800800 503 281 828 12 ++ 21 28 + 24 166 + 124 520 + 423 12 3.96 16.5
52034 52051 125 88 131 26545 8 1 + 18702+2 37 + 28 166 + 124 520++175
215 175 +423
145 12 3 4 3.963.39.9 16.5
1177.2.2
53170-N
52039 52055
53180-N
160 200 800800
97 13 8 545
27587
7 28 9 870
2 9124 22 ++ 3117 28 166 166 ++ 124
166 520
52021++517423
5
520 12
12 3 4 3.96 3
3.963.9 .9 16.5
1177.2.2
16.5
52065 200 800 165 305 2+2 37 + 28 215 + 175
53180-N
52045 53190-N 160 800
113 33587
612
6 1912
1 +1004 2146++ 12+ 37 166 + 166
186 + 166 520
612+++215
270 520
520 12 4 6
12 3.963.39.9
3.96 17.2
16.5
16.5
17.2
52075
53190-N
52049 53205-N 200
250
800
122
1000
182
34612
5
652
362
21004
1044
4
12 ++ 4216 37 186 186 ++ 166
186 612
6122270
215
7++0 520
612 12
12 4 6
6
3.96 3.9
3.963.39.9
17.2
16.5
17.2
16.5
52080 250 194 417 1+3 46 + 37 + 215 17.2
52051 53205-N 160
54220-N 1000
131 28652
1 2 +1044
2 22 ++ 12 46 + 37 186
28 + 24 166 ++ 186 612
520270++ +612
175 + 145 12 4 3.963. 9 16.5
1 7.2
52085 250 1000 204 685 372 10102+2 124 423
215 16 6 3.96 3.9 16.5
17.2
52055 54220-N 200 138
1000 28685
9 41010 2 8
2 +4 2 46 + 37 166166 + 124 1 7
520270 5
+ +423 16 4 8 3.963.39.9 17.2
16.5
54240-N
52090 315 1000 221 769 444 10943+1 520 215 16 3.96 16.5
17.2
52065 52095 200
54240-N 165 231 30769 5 454 2 +1094 2 4 37 + 28 215 520
+ 175 68 3.39.9 1177.2.2
54260-N 315 1000
1000 814 1206 2 4+ 2 46 186166 + 166 612 +27520 0 16
16 3.96
3.96 16.5
16.5
52075 250 182 362 4 37 215 6 3.9 17.2
54260-N
54275-N 1000
1250 814
854 1206
1246 2 +4 2 186186
+ 166 612 + 520 16 3.96 16.5
52080 250 194 417 1+3 46 + 37 270 612
+ 215 16 6
3.96
3.9
16.5
17.2
54275-N 1250 854 1246 4
46 + 37
186 612
270 + 215
16 3.96 16.5
52085 250 204 372 2+2 6 3.9 17.2
Table 5
52090 315 221 444 3+1 46 + 37 270 + 215 8 3.9 17.2
52095 315 231 454 4 46 270
440/3/50
8 POWER SUPPLY
3.9 440V/3PH/50Hz
17.2
Unit Characteristics Compressor 440/3/50
Condenser Fan Motor
Model ACUS
Model MFA MUnit
CA Characteristic
ICF QTY RLA Each Compressor LRA Each Condenser
QTY FLFan
A EaMotor
ch LRA Each
Model
ACUV
51008 40 Unit
23 Characteristic
106 1 15 Compressor 98 Condenser
1 Fan1.8 Motor 7.9
ACUV
51009 50 MFA 30 MCA146 ICF1 QTY 19 RLA LRA 130 QTY 1 FLA 3.6 LRA16
63 MFA MCA ICF QTY 2 3 RLA LRA QTY POWER SUPPLY
FLA 440V/3PH/50Hz
LRA
51012
52100-N 500 34 287 1 61 5451 2 115 391145 8 1 3.5 3.6 14.716
51014 Unit
80 Characteristics C o2m8 pr e s s o r 175 88 2 Conde3.5
nser1F.8an Motor14.7
Model ACUS 52100-N
52110-N 500 41
500 326 185
287 5841
545 1 2+ 1 115115 + 154 391391 + 478 3.5
7.9
14.7
52015 MFA 63 MCA 40 IC326
F 12 3 QTY5842 RLA Each1 5 LRA Each98 2 1 .8 A E.9ach
7
52110-N
52120-N 500
630 375 671 1 +2 1 115154 + 154 391478+ 478 88 QTY F3.5
LA Each LR14.7
3.5 14.7
19 98 130
51008 52019 40
52120-N
80 23 53 106 169
630 375 1 6712 1 5 88 1 2
2 1.38.6 71.96
52130-N
52024 80 630 61 398 187 7562 1 2+ 1 23 173154 + 154 563478 +14478
5 3.5
3.5 3.6 14.7
14.716
51009 50 30 146 1 19 130 1
52130-N
52140-N
52025 630
100 630 68 398
417 193 756
7752 1 +2 1 24 173173 + 154 563563 +14478
5 88 3 3.53.36.6
3.5
16
14.7
14.7
16
51012 63 34 161 1 23 145 1 3.6 16
52140-N
52028 125 630 77 417 227 7752 2 2+ 218 28 115173 3911563 1 75 8 3 3.5
3.51.38.6 14.7
16
51014 53150-N 80 630
41 18416
5 1 674 + 115 7+5 391 12 2 14.7
7.9
37 + 28
52034
52015 53150-N
53160-N
63
125 630 87
630
40 12416
465
3
2 6 7
2 674
1+1
761 21 ++ 1125 115
154 ++ 115115 478215
391 + 175
98++ 391
391 12
12 2 3 3.5 3
3.51.8 . 6 16
14.7
14.7
7.9
52039 160 96 275 2 37 215 3 3.6 16
53160-N
53170-N
52019 52045 80 630
53 112 16465
800 504
9 334 2 761
800 12 ++ 1219 154
154 ++ 115115 478 3++0 +391
4781270 391 12
12 2 4 3.5
3.53.36.6 14.7
14.7
1166
160 1+1 46 + 37 215
53170-N
52024 52049
53180-N
80 800
61 121 18504 2 800 22 ++ 2113 46 154 + 115 4781 4+ 5 391 12 3.5 14.7
200 800 7 343
543 8392 154 + 154 478 +27478 0 12 2 4 3.53.36.6 1166
14.7
53180-N
52025 52051 100
53190-N 800
68
160 800 129 1 543
93
566 279 2 839
9242+2 21 ++ 212428 + 24 154173 ++ 154 154 478 4++5 +478
5631175 478
145 12
12 3 4 3.5
3.53.36.6 14.7
1166
14.7
52028 52055 125
53190-N
53205-N 7
800 7
200 800 137 2 2 7
566
604 287 2 924
9624 12 ++ 2218 28 173 173 + 173+ 154 56317+517478
563 + 563 5 12 3 4
12 3.53.36.6
3.5 1166
14.7
14.7
52034 52065 125 87 163 26604 7 302 1 + 1962 37 + 28
37 + 28 215 + 175175 3 3.6 16
53205-N
54220-N 200 800
800 633 9292+2 22 ++ 12 173
154 ++ 173 115 478215++ +563
563 391 16 6
12 3.5 3.6
3.5 14.716
14.7
52039 52075 160 9 6
250 800 180 2 7 5 359 2 37 37 215215 36 3.36.6 16
54220-N
54240-N 1000 633
711 9294
1007 2 +4 2 154 + 115 478478 + 391 16 3.5 14.716
52045 52080 160 250 112 192 334 414 1 + 1 1 + 3 46 + 46 37 + 37 154 270270
+ 215+ 215
16 46
3.53.36.6
14.7
1166
54240-N
54260-N 1000 711 1007 2 4+ 42646 + 37 173154 478 16 3.5 14.7
52049 52085 200 250 1000
121 202 34753 3 369 2 1111
2+2 + 154 5632270
7+0 +478215 16 4 6 3.53.36.6 14.7
1166
54260-N
54275-N
52051 52090 160 315 1000
129 219 27753
1000 9 441 2 +1111
791 1149
2 3+1 228+4 2+ 46
24 + 37 173154
173 + 563 563
175270 +
+ 145 478
+ 215 16 4 8
16 3.53.36.6
3.5 14.7
14.7
1166
54275-N
52055 52095 200 315 1000
137 228 28791 7 450 411494 4 28 46 173 563
175 702 16 4 8 3.53.36.6 14.7
166 6
1Table
52065 200 163 302 2+2 37 + 28 215 + 175 6 3.6 16
52075 250 180 359 4 37 215 6 380/3/60
3.6 17
16
52080 250 192 414 1+3
AIR CONDITIONING EQUIPMENT
46 + 37 270 + 215 6
380/3/60
3.6 16
 54220-N 800 633 929 2+2 154 + 115 478 + 391 16 3.5 14.7
52085 54220-N
250 800
202 3633
69 2 + 929
2 2 46
+ 2+ 37 154 + 115 478
270 ++215
391 16 6 3.53.6 14.7
16
54240-N
52090 315
54240-N
54260-N
1000
219
1000
1000 SKM Air Cooled Condensing Units
711
4711
41
753
1007
3 +1007
1
1111
4
46
4 + 37
2 + 426
154
154
173 + 154
478
270478
+ 215
56327+0 478
16
16
16
8
3.5
3.53.6
3.53.6
14.7
16
14.7
14.7
ACUV-N
1149 Series - R-134a
52095 315
54260-N 228
1000 4753
50 41111 2+2 173 + 154 563 + 478 16 8 3.5 16
14.7
54275-N 1000 791 4 173 563 16 3.5 14.7
54275-N 1000 791 1149 4 173 563 16 3.5
POWER SUPPLY 14.7
380V/3PH/60Hz
Unit Characteristics Compressor Condenser Fan Motor
Model ACUS
ELECTRICAL
MFA MCA DATAICF QTY RLA Each LRA Each QTY 380/3/60
FLA Each LRA Each
380/3/60
POWER SUPPLY
61009 50 28 123 1 18 113 1 3.1 380V/3PH/60Hz 9.6
61011 63 Unit Characteristics
37 Unit Characteristic
178 1 24CompCompressor
ressor 160 C on
Condenser
1 de n s e
Fanr F a n M o
5.3 Motor 17.5t o r
Model ACUS Model Unit Characteristic
61014 Model M8F0A
ACUV MCA4 3 1
ICF 7 3 QT1Y RLA3Each 0 Compressor LRA15Each5 Condenser
1
QTY FLA5E.3acMotor
Fan h LRA17E.5ach
61017
61009 ACUV15000 MFA2584 22438
1MCA 11 ICF QTY1386 RLA 121335
LRA QTY 12 FLA33..11 LRA 99..66
62018 6830 MFA3479 MCA
11366
7484 ICF
12729 QTY2148 RLA 1LRA
16103 QTY 12 FLA53..31 LRA
61011 62120-N 630 2 149 534 8 3.9 19197..65
62023 62120-N
18000 630
4636 366
12416
7037 729
12779 2 3204 149 1534
60 8 2 3.9 5 .3 19
1177..55
61014 62135-N 630 1+1 149 + 199 5345+5 631
1 8 1 3.95.3 19
62028 62135-N
61017 110205 6308
54 1 2
24160
48 8 2
1 779 1 + 3163 0 149 + 199 5342135+55 631 8 22 3.935..13 19197.6.5
62150-N 800 479 876 2 33 199 631 8 3 3.9 5.3 1917.5
62030 62150-N
62018 18205 9
49
800 2 2
14791
44 6 22 876 2 1 8 199 11631
1535 8 2 3.93.1 199.6
62034 62160-N 800 510 987 1 + 21346 224 + 199 7421263+05 631 8 3 3.9 5.3 1917.5
62023 110600
62160-N 6969
800 22510
0979 22 987 1+1 224 + 199 742 + 631 8 2 3.9 5 . 3 17.5
19
62040
62028 62170-N
122050 800
18118 23535
0284 1 2+1012
1 2513+0 36 224 2601742
5+5235 8 23 3.955..33 19
1177..55
62170-N 800 535 1012 2 51 224 742 8 3.9 19
62046 63180-N
62030 122050 800
19322 23531
1369 22894 2 + 133 149 + 149 5341256+50 534 12 33 3.955..33 19
1177..55
63180-N 800 531 894 2+1 149 + 149 534
30523+++5260
534 12 4 3.9 5.3 1917.5
62053 63195-N
62034 126500 19594
800 23594
9899 1 2+991
1 1 +6423+6 51 199 + 149 631 534 12 3 3.95.3 19
17.5
62060 63195-N
220500 800
1 67 4 594
0 2 2 991 1 + 26+436 199 + 149 631
2603+0++5235
534 12 34 3.955..33 19
1177..55
62040 63210-N 1000
118 3644
24 1 +1041
1 2 51
+1 199 + 149 631 534 12 3.9 19
62062 63210-N220500 1000
113720 33644
6399 2 2+1041
2 2 +3651+1 33 199 + 149 631
235 ++155 534 12 3.9 19
62046 63220-N 1000 694 1091 2+1 199 + 199 63126+0 631 12 34 3.955..33 1177..55
19
62065 63220-N
62053 225500 1000
115747 694
33725
8796 1 +41202
1091
1 + 13+651 199 + 199
2 64 3052+3+5260
631 631 12 4 3.9 5.3 1177..55
19
63235-N 1000 1+2 224 + 199 742 + 631 12 4 3.95.3 19
62080
62060 63235-N235105 2
1000
167 2 0 4
47250
02 2 2 + 2
21202 1 +5162+4 36 224 + 199 260 + 235
74230+5 631 12 46 3.95.35 . 3 1177..55
19
63250-N
62090 63250-N 1000 775 1252 2 + 151 224 + 224 74226+0 742 12 6 3.9 5.3 1917.5
62062 235105 127409
1000 34775
6596 2 +41252
2 2 36
+ 1+ 33 224 + 224 235 ++155
742 742 12 4 3.95.3 17.5
19
62095 64270-N 1250 808 1 4+1206 2 +6432+6 51 199 + 149 631
30523++5260534 16 46 3.955..33 19
62065 245000
64270-N
217676
1250
537061
808
3
1206 2+2 199 + 149 631 + 534 16 3.9 1177..55
19
62100
62080 64295-N
341050 1250
222709 908
440629 1306
22 ++ 22 464 ++ 36
51 51 199 305631
260 ++ 235
260 16 66 3.955..33 19
1177..55
64295-N 1250 908 1306 464 + 51 199 631 16 3.9 1917.5
62105
62090 64315-N
341050 1250
324093 54964
3568 3 4+1442
1 2 + 521 224 + 199 742
30526++0260631 16 68 3.955..33 19
17.5
64315-N 1250 964 1442 2 64+2 224 + 199 742 + 631 16 8 3.9 5.3 1917.5
62110 64335-N
62095 440000 236166
1500 551014
0511 1 +41492
3 4 6+451 224 3053742
+05260 16 6 3.95.3 19
17.5
62100 64335-N
400 1500
279 41014
69 2 +1492
2 4 + 51
64 224 305742
+ 260 16 6 3.95.3 19
17.5
Table 7
62105 400 303 538 3+1 64 + 51 305 + 260 8 5.3 17.5
64 305
460/3/60
62110 400 316 551 4 8POWER 5.3 460V/3PH/60Hz
460/3/60
SUPPLY 17.5
Unit Characteristics Compressor Condenser Fan Motor
Model ACUS Unit Characteristic
Model
MFA MCA Unit Characteristic
ICF QTY RLA Each Compressor
Compressor LRA Each
Condenser
QCondenser
TY
Fan
FLFan
Motor
A EacMotor
h LRA Each
Model
ACUV POWER SUPPLY
61009 15 98 3.1 460V/3PH/60Hz
ACUV40 MFA
24 110
MCA
1
ICF QTY19CompressRLA LRA QTY
1
FLA LRA
11.8
61011 50 Unit Characteristics
MFA 32 1MCA
51 1 ICF QTY or
RLA 130
LRA QTY 1 CondFLA
enser5Fan Motor 21
LRA
Model ACUS 62120-N 500 307
61014 M6F3A M3C6A I1C6F6 QT1Y593 2
RLA2Each3 123 LRA1423
4Each
5 8 QT1Y LA 5Each LR20
F3.8 A2E1ach
62120-N 500 307 593 2 123 423 8 3.8 20
61017
61009 62135-N
4800 5002444 11348
1900 11634 1 + 11258 123 + 164 4231978+5 520 8 12 3.833..11 20
1111..88
62135-N 500 348 634 1 + 115 123 + 164 4239+8 520 8 3.8 20
62018
61011 62150-N6
50 3 6303422 11399
5218 12731 2 19 164 1520
30 8 12 3.8 35.1 201211.8
62150-N 630 399 731 2 2139 164 520 8 3.8 20
62023 62160-N
61014 6830 6303566 11426
6765 12823 1+1 185 + 164 612143+50 520
1 8 12 3.8 55 202211
62160-N
62028 62170-N 18000 630
4644 426
11447
9904 823
12844 1 + 21283 185 + 164 6121174+55 520 8 3.8 20
61017 800 2 185 612 8 22 3.835.1 1211.8
20
62030 62170-N
1 0 0 800
4724 21447
2081 844
22731 2 1255 185 612
145 8 23 3.835.1 20
1211.8
62018 63180-N 63 630 445 2+1 123 + 123 4239+8 423 12 3.8 20
62034 63180-N
62023 18205 5861
630 12445
7354 22 731 2 + 1298 123 + 123 4231137+05 423 12 3 3.8 5 2021
63195-N 800 497 828 1 +372+ 28 164 + 123 520 + 423
21514++5175
12 2 3.8 5 2021
62040 63195-N
62028 110600 6943
800 12497
9744 1 2+ 828
1 1+ 2 3 164 + 123 520 423 12 23 3.8 55 202211
62046 63210-N 800 538 869 2 + 137 164 + 123 52021+5 423 12 3 3.8 5 2021
62030 63210-N110600 17042
800 22538
0813 22 869 2+1 25 164 + 123 145
520 + 423 12 3 3.8 5 2021
62053 63220-N
2 0 0 800
18119 32579
3443 1 2+910
1 2 +4712+8 37 164 + 164 520
270 ++215 520 12 34 3.8 55 202211
62034 63220-N125 800 579 910 2+1 164 + 164 52017+5 520 12 3.8 20
62060 63235-N
62040 126000 800
19239 23605
7543 1 +21002
1 1 37
+ 24+728 185 + 164 612
2152+7+0175520 12 34 3.8 55 202211
63235-N 800 605 1002 1+2 185 + 164 612 +145520 12 3.8 20
62062 63250-N
62046 116600 1000
110326 22647
8839 2 2+1044
2 2 +2831+7 25 185 + 185 175 +
61221+5 612 12 34 3.8 55 202211
62065 63250-N
2 0 0 1000 647 1044 2 + 12+837 185 + 185 612
2701+7++5215
612 12 3.8 20
62053 64270-N200 111493
1000 23676
4936 4
1 +1007
1 2 47
+2 164 + 123 520 423 16 44 3.8 55 202211
64270-N
62080 64295-N220500 1000
112793 676
33758
5135 1007
2 2+1089
2 2 37
+ 42+7 28 164 + 123 520
21527++0175423 16 3.8 20
62060 1000 4 164 520 16 46 3.8 55 202211
62090 64295-N
62062 126500 1000
113961 758
23805
8793 1089
2 +41202
2 4 37
28 + 25 164 520
175215
++145 16 6 3.8 5 2021
64315-N 1000 2+2 185 + 164 612 520 16 4 3.8 5 2021
62095
62065 64315-N 2
200 5 0 124034
1000 42805
9268 1 4+1202
3 47
2 + 228+ 37 185 + 164 61217++5215
270 520 16 4 6 3.8 55 202211
64335-N
62100 64335-N
1250 847 1244 447 + 37 185 270 612
+ 215 16 6 3.8 5 2021
62080 235105 127134
1250 33847
1853 22 ++1244
22 37
4 + 28 185 215612
+ 175 16 6 3.8 5 202Table
1 8
62105
62090 235105 129314 347538 3 4+ 1 4737+ 37 270215
+ 215 68 55 2211
62110
62095 18235105 220444 442688 1 +4 3 47 4+737 270 +70215
2 68 55
220/3/60 2211
62100 315 214 383 2+2 47 + 37 270 + 215 6 220/3/60
5 21
62105 315 234 458 3+1 47 + 37 270 + 215 8 5 21
 62095 250 204 428 1+3 47 + 37 270 + 215 6 5 21
64270-N 1000 676 1007 2+2 164 + 123 520 + 423 16 3.8 20
62100 47 + 37 270 + 215
SKM Air Cooled Condensing Units
64295-N
62105
1000
315
315
214
758
234
383
1089
458
2+2
3+1
4 164
47 + 37
520
270 + 215
16
6
8
3.8
5
5
20
21
21
ACUV-N Series - R-134a
64315-N
64335-N
62110
1000
1250
315
805
244
847
1202
468
1244
4
2+2
4
185 + 164
47
185
612 + 520
612
270
16
16
8
3.8
3.8
5
20
20
21

ELECTRICAL DATA 220/3/60

POWER SUPPLY 220V/3PH/60Hz
Unit Characteristics Compressor Condenser Fan Motor
Model Model ACUS Unit Characteristic Compressor Condenser Fan Motor
MFA MCA ICF QTY RLA Each LRA Each QTY FLA Each LRA Each
ACUV
61009 MFA 80 MCA45 2ICF
12 1 QTY 3RLA
0 LRA 195 QTY 1 FLA 5.4 LRA16.7
62120-N 61011 1000 100 60861 267
1211 1 2 40246 885 237 8 1 6.80 9 3229.7
62135-N 61014 1000 125 69168 285
1294 1 1+1 24646 + 329 885 + 1040255 8 1 6.80 9 3229.7
62150-N 61017 1250 160 79586 402
1449 1 2 58329 1040 380 8 2 6.8 5.4 3216.7
62160-N 62018 1250 125 84681 247
1633 2 1+1 37030 + 329 1224 + 1040195 8 2 6.8 5.4 3216.7
62170-N 62023 1500 160 887109 315
1674 2 2 40370 1224 237 8 2 6.8 9 3229.7
63180-N 62028 1250 200 881123 339
1484 2 2+1 24646 + 246 885 + 885255 12 2 6.8 9 3229.7
63195-N 62030 1500 200 985140 352
1639 2 1+2 32949 + 246 1040 + 885255 12 3 6.8 9 3229.7
63210-N 62034 1500 250 1068161 486
1722 2 2+1 32958 + 246 1040 + 885380 12 3 6.8 9 3229.7
63220-N 62040 1500 315 1151194 566
1805 1 + 12 + 1 85 + 58+ 329 1040 + 1040
329 460 + 380 12 3 6.8 9 3229.7
63235-N 620461250+800315 846+438 221 593
1633+1092 2 1+2 37085 + 329 1224 + 1040 460 12 3 6.8 9 3229.7
63250-N 620531500+1000400 887+490 261 702
1674+1276 1 + 12 + 1 110
370+ +85 370 1224 + 1224
560 + 460 12 4 6.8 9 3229.7
64270-N 620601250+1000400 795+608 286 1449+1211
727 2 2+2 329110+ 246 1040 + 885560 16 4 6.8 9 3229.7
64295-N 620621250+1250400 795+795 268 1449+1449
593 2+2 4 58 +329
49 1040380 + 225 16 4 6.8 9 3229.7
64315-N 620651500+1250400 887+795 286 1674+1449
612 4 2+2 37058 + 329 1224 + 1040 380 16 4 6.8 9 3229.7
64335-N 620801500+1500500 887+887 365 1674+1674
656 2+2 4 85 +370
58 1224460 + 380 16 6 6.8 9 3229.7
62090 500 418 790 4 85 460 6 9 29.7
Table 9

Legend 62095 630 449 890 1+3 110 + 85 560 + 460 6 9 29.7
62100 630 474 815 2+2 110 + 85 560 + 460 6 9 29.7
MFA Maximum Fuse Amps (for fuse/circuit breaker sizing), PWS Part Winding Start.
62105 630 517
complies with NEC Article 440-22 & 430-52.
958 3+1 110 + 85 560 + 460 8 9 29.7
MCA Minimum62110Circuit 8Amps.(for
00 54wire
2 sizing), 983 complies
4 with 110 Rated Load Amps.
RLA 560 (at worst operating
8 9
condition) 2.9.7
NEC article 440-33.
LRA Locked Rotor Amps.
ICF Maximum Instantaneous Current Flow.
DOL Direct On-Line Start . FLA Full Load Amps.

Note :

Voltage imbalance not to exceed ± 2 % of the rated voltage.

19
AIR CONDITIONING EQUIPMENT
 SKM Air Cooled Condensing Units
ACUV-N Series - R-134a

Dimensional Data
MODELS : ACUV- 52100N, 52110N, 52120N & 62120N, 62135N, 62150N
MODELS
ACUV : ACUV-
Models: 52100N,
52100-N 52110N,, 52120-N
, 52110-N 52120N &&62120N,
62120-N62135N, 62150N
, 62135-N , 62150-N
10 67.5 20 67.5 10
10[254] 67.5
[1714] 20[508] 67.5
[1714] 10[254]
[254] [1714] [508] [1714] [254]
2 1
4 2 1
4 A1 A3 A5 A7
A1 A3 A5 A7 LEGEND
CSH8553
110Y
LEGEND
1 CONDENSER FAN
CSH8553
110Y

1 CONDENSER FAN
2 CONDENSER COIL
2 CONDENSER COIL
3 COMPRESSOR
3 COMPRESSOR
4 CONTROL PANEL
4 CONTROL PANEL
ALL DIMENSIONS ARE IN INCHES [mm]
110Y
ALL DIMENSIONS ARE IN INCHES [mm]
CSH8553
110Y
CSH8553

A2 A4 A6 A8
A2 A4 A6 A8
1 175 88
1 [25] 175
[4445] 88[2235]
[25] [4445] [2235]
12
12[305]
[305]

F ILTERED

104.83
[2663]
FVEN TILATION
ILTERED

104.83
[2663]
VEN TILATION

LIQ U ID
Ø Ux ID
LIQ 2N os.
Ø x 2N os.
D ETAC HAB LE
PLATE
D ETAC HAB LE F OR
CAB LE
PLATE ENTR Y
F OR
CAB LE ENTR Y

[150]
5.91
S TEEL W IR E R IG G IN G H OLES SU C TION 3

[150]
5.91
G UWARD
S TEEL IR E 4G
R IG G IN x ØH OLES
1 1/ 4 [32] SU CØ x 2N os .
TION
G U ARD 4 x Ø 1 1/ 4 [32] Ø x 2N os .

MODELS : ACUV- 52130N, 52140N & 62160N, 62170N

MODELS
ACUV : ACUV-
Models: 52130N,
52130-N 52140N &&62160N,
, 52140-N 62160-N62170N
, 62170-N
20 59.5 40 59.5 20
20[508] 59.5
[1511] 40[1016] 59.5
[1511] 20[508]
4 [508] [1511] [1016] 2
[1511] 1 [508]
4 A1 A3 A5 2 1 A7
A1 A3 A5 A7
CSH8563
125Y NOTE:
CSH8563
125Y NOTE:CONDENSER FAN & UNIT HEIGHT WILL BE DIFFERENT
#
# CONDENSER
FROM THEFAN & UNIT
LAYOUT HEIGHT
FOR WILL BESUPPLY.
THE POWER DIFFERENT
FROM THE LAYOUT FOR THE POWER SUPPLY.
* 440V/3Ph/50Hz
* 440V/3Ph/50Hz
# FOR COMPRESSOR WITH SOUND ENCLOSURE
# FORUNIT
COMPRESSOR WITH
HEIGHT WILL SOUND ENCLOSURE
INCREASE BY 2 INCH.
UNIT HEIGHT WILL INCREASE BY 2 INCH.
# SUC. & LIQ. LINES ARE BASED ON 100f EQUIVALENT LENGTH
125Y
125Y
CSH8563 # SUC. & LIQ. LINES ARE BASED ON 100f EQUIVALENT LENGTH
CSH8563

A2 A4 A6 A8
A2 A4 A6 A8
1 199 88
1 [25] 199
[5055] 88[2235]
[25] [5055] [2235]
12
12[305]
[305]

FILTER ED
104.83
[2663]

FILTER
VEN ED
TILATION
104.83
[2663]

V EN TILATION

LIQ UID
Ø UID
LIQ x 2N os .
[150]

Ø x 2N os .
5.91
[150]
5.91

DETACH AB LE
DETACH P LATE
AB LE F OR
CAB LE
P LATE EN TRY
F OR
CAB LE EN TRY
3
SU C TION 3
SU CØ x 2N os.
TION
S TEEL W IRE R IG G IN G H OLES
G UWARD Ø x 2N os.
S TEEL IRE R IG G IN4xG ØH OLES
1 1/4 [ 32]
G U ARD 4x Ø 1 1/4 [ 32]

20
 SKM Air Cooled Condensing Units
ACUV-N Series
MODELS : ACUV- 53150N, - R-134a
53160N, 53170N, 53180N, 53190N, 53205N &
63180N, 63195N, 63210N, 63220N, 63235N, 63250N
MODELS : ACUV- 53150N, 53160N, 53170N, 53180N, 53190N, 53205N &
63180N, 63195N, 63210N, 63220N, 63235N, 63250N
Dimensional Data
ACUV Models: [508]
53150-N
20
, 53160-N
40
[1016] , 53170-N
40
[1016] , 53180-N[508] , 53190-N , 53205-N MODEL-ACUV
20
& 63180-N , 63195-N ,
DIMENSIONS 53150N / 53160N / 53170N / 53180N/ 53190N / 53205N /
63210-N , 63220-N , 63235-N , 63250-N
4 2 1
A1 A3 A5 A7 A9 A11 63180N 63195N 63210N 63220N 63235N 63250N
272 272 272 272 308 308
L [6909] [6909] [6909] [6909] [7823] [7823]
20 C SH 85 53
40 40 C SH 855 3
20 175 97 175 175 109 199
A
11 0Y 11 0Y

[508] [1016] [1016] [508] [4445] [2464] [4445] MODEL-ACUV

[4445] [2769] [5055]
4 2 1 BDIMENSIONS
[2464]
175/ 53160N
97 53150N
[4445]
97 / 53170N
[2464] [2464]
199
97 / 53180N/
[5055]
109
53190N
[2769] / 53205N /
A1 A3 A5 A7 A9 A11 63180N 63195N 63210N 63220N 63235N 63250N
272 272 272 272 308 308
C SH 85 53 C SH 855 3
L NOTE:[6909] [6909] [6909] [6909] [7823] [7823]
11 0Y 11 0Y
175 FAN97
A# CONDENSER & UNIT 175 WILL175
HEIGHT BE 109
DIFFERENT 199
[4445] [2464] [4445] [4445] [2769] [5055]
FROM THE LAYOU T FOR THE POWER SUPPLY.
97
B * 440V/3Ph/50Hz175 97 97 199 109
[2464] [4445] [2464] [2464] [5055] [2769]
11 0Y
C SH 855 3

# FOR COMPRESSOR WITH SOUND ENCLOSURE

A2 A4 A6 A8 A10 A12 NOTE:
UNIT HEIGHT WILL INCREASE BY 2 INCH.
# # &CONDENSER
SU C. FAN
LIQ. LINES ARE & UNIT
BASED HEIGHT WILL BE DIFFERENT
ON 100f
FROM LENGTH
EQUIVALENT THE LAYOU T FOR THE POWER SUPPLY.
* 440V/3Ph/50Hz
11 0Y
C SH 855 3

1 L 88
[25]
# FOR COMPRESSOR WITH SOUND ENCLOSURE
[2235]
14 A2 A4 A A6 A8 A10 B A12 UNIT HEIGHT WILL INCREASE BY 2 INCH.
[356] # SU C. & LIQ. LINES ARE BASED ON 100f
EQUIVALENT LENGTH

JU NC TION1 L 88
B OX [25] [2235]
14 A B
[356]

106.79
[2713]
LIQU ID
JUDNC
ETAC HAB LE
TION Ø x 3N os .

[200]
7.87
PLATE FOR
B OX
C ABLE EN TR Y

106.79
[2713]
FILT ER ED 3
V EN TILATION
4-N OS. SU C TION
STEEL W IR E R IG G IN G H OLES
Ø ID
LIQU x 3N os.
G U ARD 8x Ø 1 1/4 [ 32] Ø x 3N os .
D ETAC HAB LE

[200]
7.87
PLATE FOR
C ABLE EN TR Y

FILTER ED 3
V EN TILATION
4-N OS. SU C TION
STEEL W IR E R IG G IN G H OLES
Ø x 3N os.
MODELS : ACUV- 54220N, 54240N, 54260N, 54275N &
G U ARD 8x Ø 1 1/4 [ 32]

64270N, 64295N, 64315N, 64335N

ACUV Models: 54220-N , 54240-N , 54260-N , 54275-N & 64270-N , 64295-N , 64315-N , 64335-N
20 40 40 40 20
[508] [1016] [1016] [1016] [508] LEGEN D
MODELS
4
: ACUV- 54220N, 54240N, 54260N,
2
54275N1& 1 CONDENSER FAN
A1 64270N, 64295N,
A3 A564315N, 64335N
A7 A9 A11 A13 A15 2 CONDENSER COIL
C SH 856 3
12 5Y
C SH 85 63
12 5Y
3 COMPRESSOR
4 CONTROL PANEL
ALL DIMENSIONS ARE IN INCHES [mm]
20 40 40 40 20
[508] [1016] [1016] [1016] [508] NOTE: LEGEND
2 1 # CONDENSER FAN & UN IT HEIGHT WILL BE DIFFERENT
1 CONDENSER FAN
4 FROM THE LAYOUT FOR THE POWER SUPPLY.
A1 A3 A5 125 Y
CSH 8 563
A7 A9 A11 A13
1 25Y
CSH 85 63
A15 2 CONDENSER COIL
* 440V/3Ph/50Hz
C SH 856 3 C SH 85 63 # 3 COMPRESSOR
FOR COMPRESSOR WITH SOUND ENCLOSURE
A2 A4 A6 A8 A10 A12 A14 A16
12 5Y 12 5Y
UNIT HEIGHT WILL INCREASE BY 2 INCH.
4 CONTROL PANEL
# SUC. & LIQ. LINES ARE BASED ON 100f
ALL DIMENSIONS ARE IN INCHES [mm]
[310]
12.2

EQUIVALEN T LENGTH

NOTE:
1 L 88
[25]
# CONDENSER FAN & UN IT HEIGHT WILL BE DIFFERENT
[2235]
FROM THE LAYOUT FOR THE POWER SUPPLY.
14 A 125 Y B 1 25Y
* 440V/3Ph/50Hz
[356]
CSH 8 563 CSH 85 63

# FOR COMPRESSOR WITH SOUND ENCLOSURE

A2 A4 A6 A8 A10 A12 A14 A16 UNIT HEIGHT WILL INCREASE BY 2 INCH.
# SUC. & LIQ. LINES ARE BASED ON 100f
[310]
12.2

EQUIVALEN T LENGTH
JU N CTION
BO X
1 L 88 LIQU ID
[25] [2235] Ø x 4N os .
108.76
[2763]

14 A B
[356]
D ETAC HAB LE
[250]
9.84

PLAT E FOR
C ABLE EN TR Y

FILTER ED
JU N CTION
BO X V EN TILATION 3
4-N O S. MODEL- ACUV
STE EL W IR E RIG GIN G HO LES DIMENSIONS 54220N / SU C TION LIQU ID
G U AR D 54240N / 54260N / 54275N / Ø x 4N os .
8x Ø 1 1/4 [ 32] Ø x 4N os.
108.76
[2763]

64270N 64295N 64315N 64335N

350 350 398 398
L [8890] [8890] [10109] [10109]
175 175 199 199
D ETAC HAB LE A [4445] [4445] [5055] [5055]
[250]
9.84

PLAT E FOR 175 175 199 199

C ABLE EN TR Y B [4445] [4445] [5055] [5055]

FILTER ED
V EN T ILATION 3
4-N O S. MODEL- ACUV
STE EL W IR E
G U AR D
RIG GIN G HO LES
8x Ø 1 1/4 [ 32]
DIMENSIONS 54220N /
64270N
54240N /
64295N
54260N /
64315N
54275N /
64335N
SU C TION
Ø x 4N os. 21
AIR CONDITIONING EQUIPMENT 350 350 398 398
L [8890] [8890] [10109] [10109]
175 175 199 199
A
 SKM Air Cooled Condensing Units
ACUV-N Series - R-134a

Dimensional Data
LOADING POINTS - 50Hz
LOADING POINTS TOTAL
ACUV- UNIT LOADING POINTS TOTAL
ACUV- UNIT A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 WEIGHT
A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 WEIGHT
Ib. 1559 1235 1189 865 865 1189 865 1189 - - - - - - - - 8957
52100-N Ib. 1559 1235 1189 865 865 1189 865 1189 - - - - - - - - 8957
52100-N Kg. 707 560 539 392 392 539 392 539 - - - - - - - - 4062
Kg. 707 560 539 392 392 539 392 539 - - - - - - - - 4062
Ib. 1846 1331 1476 961 865 1190 865 1190 - - - - - - - - 9723
52110-N Ib. 1846 1331 1476 961 865 1190 865 1190 - - - - - - - - 9723
52110-N Kg. 837 603 669 436 392 539 392 539 - - - - - - - - 4409
Kg. 837 603 669 436 392 539 392 539 - - - - - - - - 4409
Ib. 1854 1339 1484 969 969 1484 969 1484 - - - - - - - - 10552
52120-N Ib. 1854 1339 1484 969 969 1484 969 1484 - - - - - - - - 10552
52120-N Kg. 841 607 673 439 439 673 439 673 - - - - - - - - 4785
Kg. 841 607 673 439 439 673 439 673 - - - - - - - - 4785
Ib. 1953 1431 1583 1061 1058 1574 1058 1574 - - - - - - - - 11291
52130-N Ib. 1953 1431 1583 1061 1058 1574 1058 1574 - - - - - - - - 11291
52130-N Kg. 886 649 718 481 480 714 480 714 - - - - - - - - 5121
Kg. 886 649 718 481 480 714 480 714 - - - - - - - - 5121
Ib. 1953 1431 1583 1061 1061 1583 1061 1583 - - - - - - - - 11315
52140-N Ib. 1953 1431 1583 1061 1061 1583 1061 1583 - - - - - - - - 11315
52140-N Kg. 886 649 718 481 481 718 481 718 - - - - - - - - 5132
Kg. 886 649 718 481 481 718 481 718 - - - - - - - - 5132
Ib. 1793 1469 1244 919 919 1244 919 1244 1244 919 1244 919 - - - - 14078
53150-N Ib. 1793 1469 1244 919 919 1244 919 1244 1244 919 1244 919 - - - - 14078
53150-N Kg. 813 666 564 417 417 564 417 564 564 417 564 417 - - - - 6385
Kg. 813 666 564 417 417 564 417 564 564 417 564 417 - - - - 6385
Ib. 2080 1565 1531 1015 920 1244 920 1244 1244 920 1244 920 - - - - 14848
53160-N Ib. 2080 1565 1531 1015 920 1244 920 1244 1244 920 1244 920 - - - - 14848
53160-N Kg. 943 710 694 461 417 564 417 564 564 417 564 417 - - - - 6734
Kg. 943 710 694 461 417 564 417 564 564 417 564 417 - - - - 6734
Ib. 2081 1565 1531 1016 1016 1531 1016 1531 1245 920 1245 920 - - - - 15616
53170-N Ib. 2081 1565 1531 1016 1016 1531 1016 1531 1245 920 1245 920 - - - - 15616
53170-N Kg. 944 710 694 461 461 694 461 694 564 417 564 417 - - - - 7082
Kg. 944 710 694 461 461 694 461 694 564 417 564 417 - - - - 7082
Ib. 2080 1564 1530 1015 1015 1530 1015 1530 1530 1015 1530 1015 - - - - 16372
53180-N Ib. 2080 1564 1530 1015 1015 1530 1015 1530 1530 1015 1530 1015 - - - - 16372
53180-N Kg. 943 709 694 460 460 694 460 694 694 460 694 460 - - - - 7425
Kg. 943 709 694 460 460 694 460 694 694 460 694 460 - - - - 7425
Ib. 2194 1672 1644 1123 1120 1635 1120 1635 1635 1120 1635 1120 - - - - 17653
53190-N Ib. 2194 1672 1644 1123 1120 1635 1120 1635 1635 1120 1635 1120 - - - - 17653
53190-N Kg. 995 758 746 509 508 742 508 742 742 508 742 508 - - - - 8006
Kg. 995 758 746 509 508 742 508 742 742 508 742 508 - - - - 8006
Ib. 2193 1671 1644 1122 1122 1644 1122 1644 1644 1122 1644 1122 - - - - 17692
53205-N Ib. 2193 1671 1644 1122 1122 1644 1122 1644 1644 1122 1644 1122 - - - - 17692
53205-N Kg. 995 758 745 509 509 745 509 745 745 509 745 509 - - - - 8024
Kg. 995 758 745 509 509 745 509 745 745 509 745 509 - - - - 8024
Ib. 2082 1566 1536 1020 1020 1536 1020 1536 1249 925 1249 925 945 1310 945 1310 20176
54220-N Ib. 2082 1566 1536 1020 1020 1536 1020 1536 1249 925 1249 925 945 1310 945 1310 20176
54220-N Kg. 944 710 697 463 463 697 463 697 567 419 567 419 429 594 429 594 9150
Kg. 944 710 697 463 463 697 463 697 567 419 567 419 429 594 429 594 9150
Ib. 2082 1567 1537 1021 1021 1537 1021 1537 1537 1021 1537 1021 1041 1597 1041 1597 21715
54240-N Ib. 2082 1567 1537 1021 1021 1537 1021 1537 1537 1021 1537 1021 1041 1597 1041 1597 21715
54240-N Kg. 944 711 697 463 463 697 463 697 697 463 697 463 472 724 472 724 9848
Kg. 944 711 697 463 463 697 463 697 697 463 697 463 472 724 472 724 9848
Ib. 2195 1673 1645 1124 1124 1645 1124 1645 1636 1121 1636 1121 1144 1706 1144 1706 23391
54260-N Ib. 2195 1673 1645 1124 1124 1645 1124 1645 1636 1121 1636 1121 1144 1706 1144 1706 23391
54260-N Kg. 995 759 746 510 510 746 510 746 742 508 742 508 519 774 519 774 10608
Kg. 995 759 746 510 510 746 510 746 742 508 742 508 519 774 519 774 10608
Ib. 2195 1673 1645 1124 1124 1645 1124 1645 1645 1124 1645 1124 1147 1715 1147 1715 23437
54275-N Ib. 2195 1673 1645 1124 1124 1645 1124 1645 1645 1124 1645 1124 1147 1715 1147 1715 23437
54275-N Kg. 995 759 746 510 510 746 510 746 746 510 746 510 520 778 520 778 10629
Kg. 995 759 746 510 510 746 510 746 746 510 746 510 520 778 520 778 10629
Table 10

LOADING POINTS - 60Hz

LOADING POINTS TOTAL
ACUV- UNIT LOADING POINTS TOTAL
ACUV- UNIT A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 WEIGHT
A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 WEIGHT
Ib. 1627 1302 1257 932 932 1257 932 1257 - - - - - - - - 9497
62120-N Ib. 1627 1302 1257 932 932 1257 932 1257 - - - - - - - - 9497
62120-N Kg. 738 591 570 423 423 570 423 570 - - - - - - - - 4307
Kg. 738 591 570 423 423 570 423 570 - - - - - - - - 4307
Ib. 1913 1398 1543 1028 932 1257 932 1257 - - - - - - - - 10260
62135-N Ib. 1913 1398 1543 1028 932 1257 932 1257 - - - - - - - - 10260
62135-N Kg. 868 634 700 466 423 570 423 570 - - - - - - - - 4653
Kg. 868 634 700 466 423 570 423 570 - - - - - - - - 4653
Ib. 1921 1406 1551 1036 1036 1551 1036 1551 - - - - - - - - 11089
62150-N Ib. 1921 1406 1551 1036 1036 1551 1036 1551 - - - - - - - - 11089
62150-N Kg. 871 638 704 470 470 704 470 704 - - - - - - - - 5029
Kg. 871 638 704 470 470 704 470 704 - - - - - - - - 5029
Ib. 2028 1507 1659 1137 1134 1649 1134 1649 - - - - - - - - 11898
62160-N Ib. 2028 1507 1659 1137 1134 1649 1134 1649 - - - - - - - - 11898
62160-N Kg. 920 683 752 516 514 748 514 748 - - - - - - - - 5396
Kg. 920 683 752 516 514 748 514 748 - - - - - - - - 5396
Ib. 2028 1507 1659 1137 1137 1659 1137 1659 - - - - - - - - 11922
62170-N Ib. 2028 1507 1659 1137 1137 1659 1137 1659 - - - - - - - - 11922
62170-N Kg. 920 683 752 516 516 752 516 752 - - - - - - - - 5407
Kg. 920 683 752 516 516 752 516 752 - - - - - - - - 5407
Ib. 1866 1542 1317 992 992 1317 992 1317 1317 992 1317 992 - - - - 14951
63180-N Ib. 1866 1542 1317 992 992 1317 992 1317 1317 992 1317 992 - - - - 14951
63180-N Kg. 846 699 597 450 450 597 450 597 597 450 597 450 - - - - 6781
Kg. 846 699 597 450 450 597 450 597 597 450 597 450 - - - - 6781
Ib. 2153 1638 1604 1088 993 1317 993 1317 1317 993 1317 993 - - - - 15722
63195-N Ib. 2153 1638 1604 1088 993 1317 993 1317 1317 993 1317 993 - - - - 15722
63195-N Kg. 976 743 727 494 450 597 450 597 597 450 597 450 - - - - 7130
Kg. 976 743 727 494 450 597 450 597 597 450 597 450 - - - - 7130
Ib. 2153 1638 1604 1088 1088 1604 1088 1604 1317 993 1317 993 - - - - 16489
63210-N Ib. 2153 1638 1604 1088 1088 1604 1088 1604 1317 993 1317 993 - - - - 16489
63210-N Kg. 977 743 727 494 494 727 494 727 597 450 597 450 - - - - 7478
Kg. 977 743 727 494 494 727 494 727 597 450 597 450 - - - - 7478
Ib. 2153 1637 1603 1088 1088 1603 1088 1603 1603 1088 1603 1088 - - - - 17246
63220-N Ib. 2153 1637 1603 1088 1088 1603 1088 1603 1603 1088 1603 1088 - - - - 17246
63220-N Kg. 976 743 727 493 493 727 493 727 727 493 727 493 - - - - 7821
Kg. 976 743 727 493 493 727 493 727 727 493 727 493 - - - - 7821
Ib. 2275 1754 1726 1204 1201 1717 1201 1717 1717 1201 1717 1201 - - - - 18631
63235-N Ib. 2275 1754 1726 1204 1201 1717 1201 1717 1717 1201 1717 1201 - - - - 18631
63235-N Kg. 1032 795 783 546 545 779 545 779 779 545 779 545 - - - - 8449
Kg. 1032 795 783 546 545 779 545 779 779 545 779 545 - - - - 8449
Ib. 2274 1753 1725 1204 1204 1725 1204 1725 1725 1204 1725 1204 - - - - 18670
63250-N Ib. 2274 1753 1725 1204 1204 1725 1204 1725 1725 1204 1725 1204 - - - - 18670
63250-N Kg. 1031 795 782 546 546 782 546 782 782 546 782 546 - - - - 8467
Kg. 1031 795 782 546 546 782 546 782 782 546 782 546 - - - - 8467
Ib. 2154 1639 1608 1093 1093 1608 1093 1608 1322 997 1322 997 1024 1401 1024 1401 21384
64270-N Ib. 2154 1639 1608 1093 1093 1608 1093 1608 1322 997 1322 997 1024 1401 1024 1401 21384
64270-N Kg. 977 743 729 496 496 729 496 729 599 452 599 452 464 636 464 636 9698
Kg. 977 743 729 496 496 729 496 729 599 452 599 452 464 636 464 636 9698
Ib. 2155 1639 1609 1093 1093 1609 1093 1609 1609 1093 1609 1093 1120 1689 1120 1689 22923
64295-N Ib. 2155 1639 1609 1093 1093 1609 1093 1609 1609 1093 1609 1093 1120 1689 1120 1689 22923
64295-N Kg. 977 743 730 496 496 730 496 730 730 496 730 496 508 766 508 766 10396
Kg. 977 743 730 496 496 730 496 730 730 496 730 496 508 766 508 766 10396
Ib. 2275 1754 1726 1204 1204 1726 1204 1726 1717 1201 1717 1201 1232 1808 1232 1808 24738
64315-N Ib. 2275 1754 1726 1204 1204 1726 1204 1726 1717 1201 1717 1201 1232 1808 1232 1808 24738
64315-N Kg. 1032 795 783 546 546 783 546 783 779 545 779 545 559 820 559 820 11219
Kg. 1032 795 783 546 546 783 546 783 779 545 779 545 559 820 559 820 11219
Ib. 2275 1754 1726 1204 1204 1726 1204 1726 1726 1204 1726 1204 1235 1817 1235 1817 24782
64335-N Ib. 2275 1754 1726 1204 1204 1726 1204 1726 1726 1204 1726 1204 1235 1817 1235 1817 24782
64335-N Kg. 1032 795 783 546 546 783 546 783 783 546 783 546 560 824 560 824 11239
Kg. 1032 795 783 546 546 783 546 783 783 546 783 546 560 824 560 824 11239
Table 11

22
SKM Air Cooled Condensing Units
ACUV-N Series - R-134a

Recommendations
It is a necessity that the units are installed with adequate free space around them to ensure proper circulation of air that is rejected
by the condensers and to provide adequate space for unit access for servicing and maintenance. There is a possibility of recycling
of air if the rejected air from condenser encounters any obstacles leading to an increase in the ambient air temperature surrounding
the units.

Air distribution across the entire heat exchange area will be impaired if the air outlet is obstructed. These conditions lead to a
reduction in the heat exchange capacity of the coils causing an increase in discharge pressure of the compressors. This leads to a
loss of capacity & increase in compressor power input.

• If there are walls on one or two adjacent sides of the unit. The walls may be of any height. If there are walls on more than two
adjacent sides of the unit. The walls should not be higher than the unit.
• Do not locate outside air intakes near exhaust vents or other sources of contaminated air.
• If the unit is installed where windy conditions are common, install wind screens around the unit.
• Units surrounded by screens or solid walls must have no over head obstructions over any part of the unit.
• The area above the condenser must be installed unobstructed to allow vertical air discharge.
• A flat concrete foundation or floor which can support the weight of the equipment must provided as the unit must be level for
proper operation and functioning of controls.
• Under certain critical conditions it is recommended that vibration isolators of rubber-in-shear or spring type be installed under
the base refer to loading points (Page 22).

Location and Space Requirements

SINGLE UNIT INSTALLATION
(2083)

COIL SIDE
82"

END

END
(2083)

60" 60"
82"

COIL SIDE
(1524) (1524)

MULTIPLE UNIT INSTALLATION

122" 82"
(3099) (2083)

60" 60"
(1524) (1524)

23
AIR CONDITIONING EQUIPMENT
 SKM Air Cooled Condensing Units
ACUV-N Series - R-134a
Typical Refrigeration Piping
Legend 1

2 AIR
FLOW
3

1. Expansion Valve
5
4

2. Sight Glass
3. Solenoid Valve AHU

4. Filter Drier
5. Shut Off Valve
6. Liquid Line
CONDENSING
UNIT
6

7. Suction Line 6
7

DOTTED IN CASE OF
DOUBLE SUCTION RISER

2 AIR
FLOW
3

5
4

AHU

CONDENSING
UNIT

Refrigerant Piping
Correct design and size of refrigerant piping is necessary for c. Pressure drop due to vertical lift of liquid line for R-134a 1°F
proper operation. The refrigerant piping generally should be (0.55°C) sub cooling must be allowed for each 4.2 ft (1.3m)
designed to accomplish the following: vertical rise in order to avoid flash gas forming due to the weight
of the column of liquid refrigerant.
a. To ensure proper refrigerant feed to the evaporator.
b. To provide practical refrigerant line sizes without excessive SKM ACUV-N Series units are designed with a sub cooling circuit
pressure drop. enough to sub cool the liquid 12°F (6.6 °C), which gives the liquid
maximum 50 ft (15m). lift without additional sub cooling. Liquid
c. To maintain uniform return of lubricating oil to the suction heat exchanger can be used for additional sub cooling
compressor. in order to avoid flash gas forming.
d. To prevent liquid refrigerant from entering the compressor
and causing compressor damage due to "slugging".

Field Expansion Valve Selection Matching DX Coil Selection

For single circuit ACUV-N Series, the DX coil selection in a
The following recommendations should be taken into
MAH or other air handler from SKM should be based on total
consideration when selecting expansion valves in field.
capacity. For multiple circuits ACUV-N Series, extra care should
be exercised and correspondingly split, by face area or number of
1. Expansion valves should be installed as close to the
rows to correspond and match the capacity split available in the
evaporator as possible, mounted directly to the distributor.
dual circuited ACUV-N Series selected. For optimum matching
the DX coil should be ordered from SKM as well.
2. The following possible sources of pressure drop to be
considered:
SKM provides correct no. of feeds and circuits and properly

sized distribution to ensure the correct split on the DX coil is made
a. Friction losses through refrigerant lines.
available to match the particular selected ACUV-N Series model.
b. Pressure drop across valves and controls.

24
SKM Air Cooled Condensing Units
ACUV-N Series - R-134a
Recommended Refrigerant Line Sizes - 50 Hz
Liquid Line, Inches
Model
Circuit 1 Circuit 2 Circuit 3 Circuit 4
ACUV
25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft
52100-N 1 1/8 1 3/8 1 3/8 1 3/8 1 1/8 1 3/8 1 3/8 1 3/8 - - - - - - - -
52110-N 1 1/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 3/8 1 3/8 - - - - - - - -
52120-N 1 1/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 5/8 1 5/8 - - - - - - - -
52130-N 1 3/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 5/8 1 5/8 - - - - - - - -
52140-N 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 1 5/8 - - - - - - - -
53150-N 1 1/8 1 3/8 1 3/8 1 3/8 1 1/8 1 3/8 1 3/8 1 3/8 1 1/8 1 3/8 1 3/8 1 3/8 - - - -
53160-N 1 1/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 3/8 1 3/8 1 1/8 1 3/8 1 3/8 1 3/8 - - - -
53170-N 1 1/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 3/8 1 3/8 - - - -
53180-N 1 1/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 5/8 1 5/8 - - - -
53190-N 1 3/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 5/8 1 5/8 - - - -
53205-N 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 1 5/8 - - - -
54220-N 1 1/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 3/8 1 3/8 1 1/8 1 3/8 1 3/8 1 3/8
54240-N 1 1/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 5/8 1 5/8
54260-N 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 5/8 1 5/8
54275-N 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 1 5/8
Table 12

Suction Line, Inches

Model Liquid Line, Inches
Model Circuit 1 Circuit 2 Circuit 3 Circuit 4
ACUV Circuit 1 Circuit 2 Circuit 3 Circuit 4
ACUV 25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft
25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft
52100-N 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 - - - - - - - -
62120-N 1 1/8 1 3/8 1 3/8 1 5/8 1 1/8 1 3/8 1 3/8 1 5/8 - - - - - - - -
52110-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 1/8 3 1/8 3 1/8 - - - - - - - -
62135-N 1 1/8 1 3/8 1 3/8 1 5/8 1 3/8 1 3/8 1 3/8 1 5/8 - - - - - - - -
52120-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - - - - - -
62150-N 1 3/8 1 3/8 1 3/8 1 5/8 1 3/8 1 3/8 1 3/8 1 5/8 - - - - - - - -
52130-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - - - - - -
62160-N 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 3/8 1 5/8 - - - - - - - -
52140-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - - - - - -
62170-N 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 1 5/8 - - - - - - - -
53150-N 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 - - - -
63180-N 1 1/8 1 3/8 1 3/8 1 5/8 1 1/8 1 3/8 1 3/8 1 5/8 1 1/8 1 3/8 1 3/8 1 5/8 - - - -
53160-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 - - - -
63195-N 1 3/8 1 3/8 1 3/8 1 5/8 1 1/8 1 3/8 1 3/8 1 5/8 1 1/8 1 3/8 1 3/8 1 5/8 - - - -
53170-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 1/8 3 1/8 3 1/8 - - - -
63210-N 1 3/8 1 3/8 1 3/8 1 5/8 1 3/8 1 3/8 1 3/8 1 5/8 1 1/8 1 3/8 1 3/8 1 5/8 - - - -
53180-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - -
63220-N 1 3/8 1 3/8 1 3/8 1 5/8 1 3/8 1 3/8 1 3/8 1 5/8 1 3/8 1 3/8 1 3/8 1 5/8 - - - -
53190-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - -
63235-N 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 3/8 1 5/8 1 3/8 1 3/8 1 3/8 1 5/8 - - - -
53205-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - -
63250-N 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 1 5/8 - - - -
54220-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8
64270-N 1 3/8 1 3/8 1 3/8 1 5/8 1 3/8 1 3/8 1 3/8 1 5/8 1 1/8 1 3/8 1 3/8 1 5/8 1 1/8 1 3/8 1 3/8 1 5/8
54240-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8
64295-N 1 3/8 1 3/8 1 3/8 1 5/8 1 3/8 1 3/8 1 3/8 1 5/8 1 3/8 1 3/8 1 3/8 1 5/8 1 3/8 1 3/8 1 3/8 1 5/8
54260-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8
64315-N 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 3/8 1 5/8 1 3/8 1 3/8 1 3/8 1 5/8
54275-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8
64335-N 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 Table
1 5/813

SKM ACUV-N Series Condensing Units are designed for satisfactory operation with single suction line.
Suction Line, Inches
1. Suction
Model Line sizing selection recommendation in Table 12 & 13 is based on 2ºF temperature drop.
Circuit 1 Circuit 2 Circuit 3 Circuit 4
ACUV
2. Double suction
25ft risers,
50ft for applications
75ft 100ft with
25ftsystems
50ft having
75ft large
100ftvariations
25ft in capacity
50ft 75ft , are recommended
100ft 25ft 50ftto ensure
75ft proper
100ft
oil flow up and return to compressor.
62120-N 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 - - - - - - - -
3. Liquid line sizing selection recommendation in table 12 & 13 is based on 2ºF temperature drop.
62135-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 1/8 3 1/8 3 1/8 - - - - - - - -
4. 62150-N
Recommended3 1/8 line sizes3in
3 5/8 5/8Table 12 &3 1/8
3 5/8 13 are for guidance
3 5/8 3 5/8 only. For
3 5/8 - detailed
- proper
- piping,
- consult
- -recognized
- piping
-
references like ASHRAE Guide and Data Book for assistance.
62160-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - - - - - -
5. 62170-N
Suction and3 liquid
1/8 line
3 5/8sizes
3 5/8 3 5/8 on
are based 3 1/8 3 5/8 lengths.
equivalent 3 5/8 3 5/8 - - - - - - - -
63180-N 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 - - - -
SKM is not responsible
63195-N 3 1/8
for faulty
3 5/8 3 5/8
or improper
3 5/8 3 1/8
design
3 1/8
or sizing
3 1/8
of refrigerant
3 1/8 3 1/8
lines.3 1/8
3 1/8
The 3above
1/8
recommendations
- - -
do -not
incorporate necesarry slopes. etc. that may be required on horizontal risers, etc.
63210-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 1/8 3 1/8 3 1/8 - - - -
63220-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - -
63235-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - -
63250-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - 25-
64270-N 3 1/8 3 5/8 3 5/8 3 5/8
AIR CONDITIONING EQUIPMENT
3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8
 53190-N 1 3/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 5/8 1 5/8 - - - -

SKM Air Cooled Condensing Units

53205-N 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 1 5/8 - - - -
54220-N 1 1/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 3/8 1 3/8 1 1/8 1 3/8 1 3/8 1 3/8
54240-N
54260-N
1 1/8
1 3/8
1 3/8
1 3/8
ACUV-N Series - R-134a
1 5/8
1 5/8
1 5/8
1 5/8
1 1/8
1 3/8
1 3/8
1 3/8
1 5/8
1 5/8
1 5/8
1 5/8
1 1/8
1 1/8
1 3/8
1 3/8
1 5/8
1 5/8
1 5/8
1 5/8
1 1/8
1 1/8
1 3/8
1 3/8
1 5/8
1 5/8
1 5/8
1 5/8
54275-N 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 1 5/8

Recommended Refrigerant Line Sizes - 60 Hz

Suction Line, Inches
Model
Circuit 1 Circuit 2 Liquid Line, Inches Circuit 3 Circuit 4
ACUV
Model 25ft 50ft
Circuit75ft
1 100ft 25ft 50ft
Circuit75ft
2 100ft 25ft 50ft
Circuit75ft
3 100ft 25ft 50ft
Circuit 75ft
4 100ft
ACUV
52100-N 325ft
1/8 350ft
1/8 375ft1/8 3 1/8
100ft 325ft
1/8 350ft
1/8 375ft
1/8 100ft
3 1/8 -
25ft -
50ft -
75ft -
100ft -
25ft -
50ft -
75ft -
100ft
52110-N
62120-N 31 1/8
1/8 31 5/8
3/8 31 5/8
3/8 31 5/8
5/8 31 1/8
1/8 31 1/8
3/8 13 3/8
1/8 13 5/8
1/8 -- -- -- -- -- -- -- --
52120-N
62135-N 31 1/8
1/8 31 5/8
3/8 31 5/8
3/8 31 5/8
5/8 31 1/8
3/8 31 5/8
3/8 31 5/8
3/8 13 5/8
5/8 -- -- -- -- -- -- -- --
52130-N
62150-N 31 1/8
3/8 31 5/8
3/8 31 5/8
3/8 31 5/8
5/8 31 1/8
3/8 31 5/8
3/8 31 3/8
5/8 13 5/8
5/8 -- -- -- -- -- -- -- --
52140-N
62160-N 31 1/8
3/8 31 5/8
3/8 31 5/8
5/8 31 5/8
5/8 31 1/8
3/8 31 5/8
3/8 31 3/8
5/8 13 5/8
5/8 -- -- -- -- -- -- -- --
53150-N
62170-N 31 1/8
3/8 31 1/8
3/8 31 1/8
5/8 31 1/8
5/8 31 1/8
3/8 31 1/8
3/8 31 5/8
1/8 13 5/8
1/8 3 1/8
- 3 1/8
- 3 1/8
- 3 1/8
- -- -- -- --
53160-N
63180-N 31 1/8
1/8 31 5/8
3/8 31 5/8
3/8 31 5/8
5/8 31 1/8
1/8 31 1/8
3/8 31 1/8
3/8 31 5/8
1/8 31 1/8
1/8 3 1/8
1 3/8 3 1/8
1 3/8 13 5/8
1/8 -- -- -- --
53170-N
63195-N 31 1/8
3/8 31 5/8
3/8 31 5/8
3/8 31 5/8
5/8 31 1/8
1/8 31 5/8
3/8 31 5/8
3/8 13 5/8
5/8 13 1/8
1/8 13 3/8
1/8 13 3/8
1/8 13 5/8
1/8 -- -- -- --
53180-N
63210-N 31 1/8
3/8 31 5/8
3/8 31 5/8
3/8 31 5/8
5/8 31 1/8
3/8 31 5/8
3/8 31 5/8
3/8 31 5/8
5/8 13 1/8
1/8 13 3/8
5/8 13 3/8
5/8 13 5/8
5/8 -- -- -- --
53190-N
63220-N 31 1/8
3/8 31 5/8
3/8 31 5/8
3/8 31 5/8
5/8 31 1/8
3/8 31 5/8
3/8 31 5/8
3/8 13 5/8
5/8 13 3/8
1/8 13 3/8
5/8 13 3/8
5/8 13 5/8
5/8 -- -- -- --
53205-N
63235-N 31 1/8
3/8 31 5/8
3/8 31 5/8
5/8 31 5/8
5/8 31 1/8
3/8 31 5/8
3/8 31 5/8
3/8 13 5/8
5/8 13 3/8
1/8 13 3/8
5/8 13 3/8
5/8 13 5/8
5/8 -- -- -- --
54220-N
63250-N 31 1/8
3/8 31 5/8
3/8 31 5/8
5/8 31 5/8
5/8 31 1/8
3/8 31 5/8
3/8 31 5/8
5/8 13 5/8
5/8 3 1/8
1 3/8 3 1/8
1 3/8 3 1/8
1 5/8 3 1/8
1 5/8 3 -1/8 3 -1/8 3 -1/8 3 -1/8
54240-N
64270-N 31 1/8
3/8 31 5/8
3/8 31 5/8
3/8 31 5/8
5/8 31 1/8
3/8 31 3/8
5/8 13 3/8
5/8 13 5/8
5/8 13 1/8
1/8 13 3/8
5/8 13 3/8
5/8 13 5/8
5/8 13 1/8
1/8 13 3/8
5/8 13 3/8
5/8 13 5/8
5/8
54260-N
64295-N 31 1/8
3/8 31 5/8
3/8 31 5/8
3/8 31 5/8
5/8 31 1/8
3/8 31 5/8
3/8 31 5/8
3/8 13 5/8
5/8 31 3/8
1/8 3 5/8
1 3/8 3 5/8
1 3/8 3 5/8
1 5/8 3 1/8
1 3/8 3 5/8
1 3/8 3 5/8
1 3/8 3 5/8
1 5/8
54275-N
64315-N 31 1/8
3/8 31 5/8
3/8 31 5/8
5/8 31 5/8
5/8 31 1/8
3/8 31 5/8
3/8 31 5/8
5/8 13 5/8
5/8 13 3/8
1/8 13 3/8
5/8 13 3/8
5/8 13 5/8
5/8 13 3/8
1/8 13 3/8
5/8 13 3/8
5/8 13 5/8
5/8
64335-N 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 1 5/8
Table 14
Suction Line, Inches
Model
Circuit 1 Circuit 2 Circuit 3 Circuit 4
ACUV
25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft
62120-N 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 - - - - - - - -
62135-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 1/8 3 1/8 3 1/8 - - - - - - - -
62150-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - - - - - -
62160-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - - - - - -
62170-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - - - - - -
63180-N 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 - - - -
63195-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 - - - -
63210-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 1/8 3 1/8 3 1/8 - - - -
63220-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - -
63235-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - -
63250-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - -
64270-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8
64295-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8
64315-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8
64335-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8
Table 15
SKM ACUV-N Series Condensing Units are designed for satisfactory operation with single suction line.
1. Suction Line sizing selection recommendation in Table 14 & 15 is based on 2ºF temperature drop.
2. Double suction risers, for applications with systems having large variations in capacity , are recommended to ensure proper
oil flow up and return to compressor.
3. Liquid line sizing selection recommendation in table 14 & 15 is based on 2ºF temperature drop.
4. Recommended line sizes in Table 14 & 15 are for guidance only. For detailed proper piping, consult recognized piping
references like ASHRAE Guide and Data Book for assistance.
5. Suction and liquid line sizes are based on equivalent lengths.

SKM is not responsible for faulty or improper design or sizing of refrigerant lines. The above recommendations do not
incorporate necesarry slopes. etc. that may be required on horizontal risers, etc.

26
SKM Air Cooled Condensing Units
ACUV-N Series - R-134a
GUIDE SPECIFICATIONS
GENERAL FEATURES CONDENSER FAN(S) & MOTOR(S)
Condensing units shall be composed of compressor(s), fan(s),
The machine shall be furnished with direct driven propeller type
Coil(s), refrigerant piping, electrical components & enclosing
discharging air upward condenser fans. Fans shall be constructed
cabinet in one piece.
of corrosion resistant blades such as heavy gauge aluminum. The
fan and drive shall be held in proper alignment. Fan assemblies
Unit shall be factory assembled, internally wired, piping
shall be provided with heavy gauge, rust resistant steel wire fan
connections terminated with sealed and soldered copper pipe
guard. All condenser fans shall be individually, statically, and
ends. Unit shall be shipped with nitrogen holding charge (actual
dynamically balanced for vibration free operation.
charging with refrigerant R-134a should be done at site). Unit
shall be capable to operate from 50°F (10°C) to 125°F (52°C)
Motors shall be Totally Enclosed Air Over (TEAO), 6 poles, with
ambient temperature and shall be rated in accordance with
class ‘F’ insulation, minimum IP-55 protection and factory wired
AHRI-365 standard. to unit control panel.

COIL(S) REFRIGERANT PIPING

Coil shall be air cooled with integral sub-cooling circuit, The refrigerant circuit piping shall be fabricated from ACR grade
constructed of seamless copper tubes 3/8" OD mechanically copper piping, with 2, 3 or 4 refrigeration circuits.The piping
bonded to wavy Aluminium (Copper) fins with maximum14 connections shall be terminated with sealed & soldered copper
FPI (1.8 mm) spacing. Coil shall be tested against leakage by pipe ends,which give much simplicity & ease to the installation.
pressurizing air at 450 psig (3100 kPa) in coil, under water,
cleaned and dehydrated at the factory.
CASING
Unit casing shall be made of zinc coated galvanized steel
sheets conforming to JIS-G3302 and ASTM A653 which shall
COMPRESSOR (S) be phosphatized and then electrostatically dry powder coated
Compressor shall be high performance and high efficiency screw of approx.60 microns to provide an extremely tough, scratch
type. The compressor shall be driven by an electric motor in a resistance, excellent anti-corrosive protection that can pass
single housing. For stability and additional sound attenuation, 1000 hrs in 5% salt spray testing at 95°F (35°C) and 95% relative
the rotors (male and female) shall be mounted in a double wall humidity as per ASTM B117.
housing. The compressor motor shall be refrigerant gas cooled.
Each compressor shall be mounted on anti-vibration mounts to
minimize vibration transmission.
CONTROL PANEL & CONTROLS
Control panel enclosure shall be fabricated out of heavy gauge
Compressor shall have suction and discharge shut off valves, built
steel in phosphatized, powder coated baked finish. The enclosure
in three- stage oil separator, long life fine oil filter 10u m mesh
shall be conformed to IP54 as per guidelines in IEC 529. A hinged
size, insertion type oil heater with sleeve, oil sight glass, oil filter &
access door and key fastener shall be provided for easy access
drain service valves and suction gas filter with large surface area
and security.
and fi ne mesh.Compressor shall have inherent oil lubrication
The control panel shall be ventilated using louvers and filters.
system in which oil pressure is maintained by compression ratio.
The panel shall be factory wired in accordance with NEC 430 &
Bearings shall be generously dimensioned to provide long life
440, labeled, tagged and have 1 phase, 220 / 240 V for controls.
operation. Compressor shall have automatic start unloading and
shall have infinite capacity control. Each compressor shall be
Control Panel should include the following components as
provided with safety devices including check valve in discharge
minimum :
gas outlet, differential relief valve, thermal motor protection by
integrated PTC sensors in each winding coil, phase sequence
• Individual compressor and condenser fan motor contactors.
protection for direction of rotation, manual reset lock-out and oil
temperature protection by PTC sensor.
• Circuit breakers for compressors and condenser fan motors.

• Control Circuit ON/OFF switch.

• MCB for control circuit.

• Power and control circuit terminal blocks.

• Microprocessor Control Boards.

27
AIR CONDITIONING EQUIPMENT
 SKM Air Cooled Condensing Units
ACUV-N Series - R-134a

GUIDE SPECIFICATIONS
A Microprocessor must be provided to control the unit as standard. The following system protection controls shall automatically act
The controller shall provide the flexibility with set points and to ensure system reliability and protection of the unit thru the
control options that can be selected prior to the commisioning. microprocessor:
The microprocessor shall provide a complete operational control
for the unit and shall have built-in auto diagnostic capability that • Low suction pressure protection.
can signal off normal operation or alarm conditions as well as
shutting down the unit. • High discharge pressure protection.

• High discharge temperature protection.

The main features of the Controller shall be as follows : • Low discharge pressure protection.

• A large graphical display with backlit that can be seen in • Low superheat protection.
bright or dim lighting..
• High compressor ampere protection.
• A user friendly generic keypad.
• Compressor internal thermal protection.
• A multiple level passwords for security.
• Under voltage, over voltage, phase loss, phase reversal
• Pump down at the beginning and end of every circuit cycle. and phase unbalance protection.

• Capacity control based on return air temperature. • Air flow loss protection.

• Sensor error protection.

Easy Accessible Measurements shall include the following : • Pump down.

• Anti-recycle.
• Status of the unit.
• Time delay between stages.
• Status of each circuit/compressor.
• 4-Levels of passwords to restrict the intentional mishandling.
• Status of condenser fans.

• Return air temperature. Volt free contacts for run status, common fault status, auto
mode status and provision for remote on/off shall be available
• Suction pressure and temperature for each refrigerant as option.
circuit.
In addition, the unit microprocessor shall be able to support
• Discharge pressure and temperature for each refrigerant the major BMS protocols such as BACnet, Modbus & LON as
circuit. option

• Suction and discharge superheat for each refrigerant circuit.

• Ampere draw for each compressor.

• All active set points.

• Run time for each compressor.

• Number of compressor starts.

• Lockout and alarm status.

• Status of voltage monitor, compressor internal motor

protector, oil level switch, run/stop input and pump down
switches.

28
SKM Air Cooled Condensing Units
ACUV-N Series - R-134a

NOTES

29
AIR CONDITIONING EQUIPMENT
 SKM Air Cooled Condensing Units
ACUV-N Series - R-134a

NOTES

30
SKM Air Cooled Condensing Units
ACUV-N Series - R-134a

NOTES

31
AIR CONDITIONING EQUIPMENT
 SKM Air Cooled Condensing Units
ACUV-N Series - R-134a
HEAD OFFICE
P.O Box: 6004
Sharjah, United Arab Emirates
Tel: +971 6 514 3333
Fax: +971 6 514 3300
Email: sales@skmaircon.com
Email: info@skmaircon.com

Spare Parts Division

Email: spareparts.skm@skmaircon.com

Service Centre
Email: aftersales.skm@skmaircon.com

REGIONAL OFFICES
United Arab Emirates
Abu Dhabi Dubai
P.O Box: 27788 P.O Box: 98822
Tel: +971 2 6445223 Tel: +971 4 2940900
Fax: +971 2 6445145 Fax: +971 4 2940029
Email: abudhabisales.skm@skmaircon.com Email: dubaisales.skm@skmaircon.com
Al Ain
Tel: +971 3 7619921 Kuwait
Fax: +971 3 7619941 Dasman
Email: alainsales.skm@skmaircon.com P.O Box: 1215-PC 15463
Tel: +965 2 2492200
Saudi Arabia (Production Facility) Fax: +965 2 2494400
Email: kuwaitsales.skm@skmaircon.com
SKM Air Conditioning Factory
Eastern province
AD Dammam Algeria
2nd industrial city Aissat Idir ( EX-ENMA) City
Abqiq main road Hail Street Bldg1, Flat 2, Dar El Beida Algiers
Tel: +966 3 8123332 / 4 / 5 Tel: +213 21 508197
Fax: +966 3 8123337 / +966 3 8123092 Fax: +213 21 508197
Email: saudifactory.skm@skmaircon.com Email: algeriasales.skm@skmaircon.com

For SKM Distributors visit:

www.skmaircon.com

32 103/2015
Supersedes # 103/2013