Product EVERGREEN®

30HXA,HXC076-271
Data Condenserless and Water-Cooled
Liquid Chillers with
COMFORTLINK™ Controls
50/60 Hz
75 to 265 Nominal Tons
(264 to 931 kW)

®
evergrn

Water-cooled and condenserless

chillers designed from the ground up
to meet the needs of today and
tomorrow:
• Unit fits through a standard door
with no disassembly required
• Chlorine-free HFC-134a refrigerant
• Dual independent refrigerant
circuits
• Smooth compression using twin
screw compressors
• AHRI certified IPLV efficiencies to
0.51 kW/ton

Features/Benefits
Quality design and
Co m f o r t Li n k
N AV I G ATO R ™
construction make the
30HXC (water-cooled) and
12.58
TIME 54.6 F
EWT 44.1 F
LWT 44.0 F
SETP

M ORun E
D Status Alarm Status
Service Test
Temperatures
Pressures

Setpoints
Inputs
Outputs
Configuration
Time Clock
Operating Modes ESC
Alarms

30HXA (condenserless) units

ENTER

the preferred chillers.

Easy installation
The 30HX chiller has a compact de-
sign that fits through a standard door
opening and requires minimal indoor
space. The 30HX chiller is delivered as
a complete package for easy installa-
tion. There are no extra controls,
clocks, starters, or other items to
install.
The 30HX unit also provides a sin-
gle location electrical power entrance
(using the accessory field-installed con-
trol power transformer) and quick,
easy piping (using victaulic-type clamp-
on couplings).
The 30HX 208/230-v, 230-v,
460-v and 575-v 60 Hz units are
designed in accordance with UL
(Underwriters Laboratory, U.S.A.) and
UL, Canada (Underwriters Laboratory,
Canada) standards to minimize electri-
cal inspection time.

Copyright 2010 Carrier Corporation Form 30HX-10PD

Features/Benefits (cont)
A quick start-up is assured once in- costs through lower electrical costs. • Twin-screw compressors, which
stallation is complete, since each All 30HX units are also rated in accor- require no routine service or
30HX unit is manufactured at an ISO dance with AHRI (Air Conditioning, maintenance
(International Organization for Stan- Heating, and Refrigeration Institute, • Easily accessed service information
dardization) 9001:2000 listed manu- U.S.A.) standards. The 60 Hz 30HXC includes suction and discharge
facturing facility to guarantee quality. units are AHRI certified. pressure and temperature using
In addition, all 30HXC units are tested The 30HX controls are fully auto- standard Navigator™ display module
under load at the factory to provide re- matic. The leaving-fluid temperature is • All parts are available through
liable start-up. directly controlled to within .5° F Totaline parts stores.
NOTE: The 30HXC units shipped with (.3° C), and the entering-fluid tempera- ComfortLink™ controls
optional nitrogen charge are tested for ture is continuously monitored to
ComfortLink controls allow simple
proper operation of the electrical com- detect load and flow changes.
ponents but are not run-tested at the and easy interface to chillers with out-
Dual, independent refrigerant cir- standing performance and value. The
factory. cuits provide reliable, dependable cool- 30HX liquid chillers employ more than
Easy operation ing, and the 30HX units use medium- the latest advanced microprocessor
pressure HFC-134a refrigerant to controls, they utilize an expandable
The 30HX units have a quiet, low- minimize stress on the compressors
vibration design featuring screw platform that can adjust as needs
and ensure a long life. change. ComfortLink controls are
compressors.
From a service standpoint, the used in diverse applications from
Efficiency levels of the 30HX units 30HX units offer the following stand-alone operation to remotely
meet or exceed energy efficiency re-
features: monitored and operated multi-chiller
quirements of ASHRAE (American plants.
Society of Heating, Refrigeration and • Use of HFC-134a refrigerant,
Air Conditioning Engineers) 90.1 and which has no planned phase-out ComfortLink controls are fully com-
CSA (Canadian Standards Association) in its future municating, and are cable ready for
for both full load and part load • Mechanically cleanable cooler and connection to a Carrier Comfort Net-
operation, thus saving on operating condenser (30HXC units) work® (CCN) system. Occupancy
scheduling, temperature and pressure
read-outs, optional sensors, and the
ComfortLink scrolling marquee clear
FITS THROUGH language display features provide a
DUAL INDEPENDENT STANDARD DOORWAY
connection to a world of carefree
REFRIGERANT CIRCUITS
comfort.

Co m f o r t Li n k
N AV I G ATO R ™

12.58
TIME 54.6 F
EWT 44.1 F
LWT 44.0 F
SETP

M ORun
D Status
E Alarm Status
Service Test
Temperatures
Pressures

Setpoints
Inputs
Outputs
Configuration
Time Clock
Operating Modes ESC
Alarms

ENTER

TWIN-SCREW NAVIGATOR IN DISPLAY MODE

COMPRESSOR DESIGN
Co m
fort
NA
VIG
Li n k
ATO
R
TI ME
EW T 12.
LW T 54. 58
SE TP 44. 6 F
4 4 . 01 F
F

MO
DE
Run Ala rm
Status Sta tus
Service
Test
Tem
peratu
res
Pressu
res
Setpoi
nts
Inputs
Outpu
ts
Configu
ration
Time
Clock
Opera ESC
ting
Modes
Alarms

EN TE
R

2
Table of contents
Features/Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1,2
Model Number Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
AHRI Capacity Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4,5
Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-9
Options and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10,11
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-21
Application Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22-29
Selection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31,32
Typical Piping and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33,34
Typical Control Wiring Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36-47
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Guide Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49-51

Model number nomenclature

LEGEND
FIOPS — Factory-Installed Options
a30-4646

Quality Assurance
Certified to ISO 9001:2000

3
AHRI* capacity ratings
30HXC WATER-COOLED CHILLER ARI RATINGS (60 Hz ONLY)
COOLER CONDENSER CONDENSER
UNIT CAPACITY INPUT COOLER FLOW PRESSURE PRESSURE FULL-LOAD
DROP FLOW DROP IPLV†
SIZE POWER EFFICIENCY
(kW/Ton)
30HXC Output (kW) Ft of Ft of (kW/Ton)
Tons GPM L/s kPa GPM L/S kPa
kW Water Water
076 75.4 265.2 53.7 181.0 11.4 14.5 43.2 226.2 14.3 8.9 26.6 0.712 0.512
086 83.1 292.3 60.4 199.4 12.6 17.2 51.4 249.3 15.7 10.7 31.8 0.727 0.523
096 94.0 330.5 67.0 225.5 14.2 17.0 50.7 282.0 17.8 11.0 32.7 0.713 0.513
106 104.3 366.8 75.3 250.3 15.4 15.4 46.0 312.9 19.7 13.3 39.6 0.722 0.521
116 113.5 399.3 83.2 272.5 17.2 13.3 39.8 340.6 21.5 17.0 50.6 0.733 0.509
126 122.9 432.1 92.2 295.2 18.6 15.4 45.9 369.0 23.3 19.6 58.5 0.751 0.530
136 136.5 479.9 97.0 327.5 20.7 14.6 43.7 409.4 25.8 18.5 55.1 0.711 0.541
146 145.9 513.2 105.1 350.2 22.1 16.5 49.3 437.8 27.6 20.9 62.4 0.720 0.533
161 156.5 550.6 111.7 375.5 23.7 13.7 40.9 469.6 29.6 21.3 63.6 0.714 0.520
171 165.9 585.3 118.2 398.1 25.1 15.2 45.4 497.6 31.4 17.2 51.4 0.712 0.538
186 177.2 623.1 126.7 426.2 26.8 13.9 41.5 531.6 33.5 19.5 58.1 0.715 0.562
206 211.5 744.0 146.4 507.7 32.0 14.7 43.9 634.7 40.0 20.9 62.4 0.692 0.510
246 248.6 874.1 172.4 596.5 37.6 16.2 48.3 745.7 47.0 21.9 65.2 0.693 0.522
261 257.2 904.6 180.5 617.3 38.9 17.2 51.4 771.6 48.7 23.3 69.5 0.702 0.523
271 267.4 940.3 189.5 641.7 40.5 18.5 55.1 802.1 50.6 25.1 74.7 0.709 0.525
LEGEND 3. IPLV is a single number part-load efficiency value calculated using
IPLV — Integrated Part-Load Value the efficiency values at 100%, 75%, 50%, and 25% of load when
the chiller is operating at ARI conditions.
*Air Conditioning, Heating, and Refrigeration Institute (U.S.A.). 4. All data in this table is rated (60 Hz only) in accordance with AHRI
†IPLV shown is the lower of Sequence A or Sequence B unloading. Standard 550/590 as represented in the Chiller Selection Program
(E-Cat) version 2.93.
NOTES: 5. Contact Carrier for custom ratings.
1. Rated (60 Hz only) in accordance with AHRI Standard 550/590 at
standard rating conditions.
2. Standard rating conditions are as follows:
Cooler Conditions:
Leaving Water Temperature: 44 F (6.7 C)
Flow: 2.4 gpm per ton (0.043 L/s per kW)
Condenser Conditions:
Entering Water temperature: 85 F (29.4 C)
Flow: 3.0 gpm per ton (0.054 L/s per kW)
Fouling Factor (Cooler): 60 Hz only
0.00010 hr x sq ft x F per Btuh (0.000018 m2 x K per W)
Fouling Factor (Condenser):
0.00025 hr x sq ft x F per Btuh (0.000044 m2 x K per W)

4
 30HXA CONDENSERLESS CHILLER RATINGS (60 Hz ONLY)
COOLER
UNIT CAPACITY INPUT COOLER FLOW PRESSURE FULL-LOAD
SIZE POWER DROP EFFICIENCY
30HXA Output (kW) Ft of (kW/Ton)
Tons GPM L/s kPa
kW Water
076 67.7 237.9 76.2 162.4 10.2 11.9 35.6 1.127
086 76.0 267.2 84.5 182.3 11.5 14.7 43.8 1.112
096 85.8 301.9 95.1 206.0 13.0 14.4 43.1 1.108
106 96.9 340.9 106.9 232.7 14.7 13.5 40.3 1.103
116 104.9 368.9 115.0 251.8 15.9 11.6 34.6 1.097
126 113.9 400.6 125.4 273.4 17.2 13.4 40.1 1.101
136 127.0 446.5 138.5 304.7 19.2 12.9 38.4 1.091
146 137.2 482.5 150.0 329.3 20.8 14.8 44.1 1.094
161 147.3 518.1 159.9 353.6 22.3 12.3 36.7 1.086
171 159.0 559.3 173.8 381.7 24.1 14.1 42.1 1.093
186 174.3 612.8 192.7 418.2 26.4 13.5 40.3 1.106
206 198.5 698.2 216.4 476.5 30.1 13.1 39.2 1.090
246 231.9 815.4 252.4 556.5 35.1 14.3 42.7 1.089
261 244.1 858.6 267.5 585.9 37.0 15.7 46.8 1.096
271 257.9 907.0 283.9 619.0 39.1 17.3 51.6 1.101
NOTES: Fouling Factor (Cooler):
1. Rated (60 Hz only) in accordance with AHRI Standard 550/590 at 0.00010 hr x sq ft x F per Btuh (0.000018 m2 x K per W)
standard rating conditions. 3. All data in this table is rated (60 Hz only) in accordance with AHRI
2. Standard rating conditions are as follows: Standard 550/590 as represented in the Chiller Selection Program
Cooler Conditions: (E-Cat) version 2.93.
Leaving Water Temperature: 44 F (6.7 C) 4. Contact Carrier for custom ratings.
Flow: 2.4 gpm per ton (0.043 L/s
per kW)
Saturated Discharge Temperature: 125 F (52 C)

09DK CONDENSER RATINGS (60 Hz ONLY)

UNIT
SIZE HP TONS BTUH BTUH/HP
09DK
044 3.0 54.6 655,200 218,400
054 4.0 64.1 769,200 192,300
064 4.0 76.6 919,200 229,800
074 6.0 93.0 1,116,000 186,000
084 6.0 100.9 1,210,800 201,800
094 6.0 113.3 1,359,600 226,600
NOTE: Rated in accordance with AHRI standard 460 at standard rating
conditions.
• 125 F (52 C) Condensing Temperature
• R-134a Test Fluid
• 15° F (8.3° C) Subcooling
• 95 F (35 C) Entering Dry Bulb Temperature

5
Physical data
ENGLISH
UNIT SIZE 30HX 076 086 096 106 116 126 136 146
UNIT OPERATING WEIGHT (lb)
Water-Cooled (HXC) 5700 5723 5855 6177 6415 6465 6688 6718
Condenserless (HXA) 4717 4744 4835 5151 5163 5205 5309 5333
COMPRESSORS Semi-Hermetic, Twin Screw
Quantity 2 2 2 2 2 2 2 2
Nominal Capacity per Compressor (tons) 39/39 46/39 56/39 66/39 66/46 66/56 80/56 80/66
Economizer No No No No No No No No
No. Capacity Steps
30HXC Unit 6 6 6 6 6 6 6 6
30HXA Unit (maximum on 30HXC unit
with factory-installed option) 8 8 8 8 8 8 8 8
Minimum Step Capacity (%)
30HXC Unit 20 20 20 20 20 20 20 20
30HXA Unit (30HXC unit with factory-
installed option) 10 10 10 10 10 10 10 10
REFRIGERANT R-134a
Charge* (lb) Circuit A/Circuit B 75/75 76/75 94/70 110/70 112/89 112/89 124/89 119/100
COOLER Shell and Tube with Enhanced Copper Tubes
Part No. 10HX400- 401 401 402 408 406 406 405 405
Net Fluid Volume (gal) 17.0 17.0 19.0 22.6 21.4 21.4 24.0 24.0
Maximum Refrigerant Pressure (psig) 220 220 220 220 220 220 220 220
Maximum Water-Side Pressure (psig) 300 300 300 300 300 300 300 300
Water Connections
Inlet and Outlet (in.) (Standard Pass) 4 4 4 5 5 5 5 5
Drain (in. NPT) (Standard Pass) 3/8 3 /8 3 /8 3 /8 3 /8 3 /8 3 /8 3 /8
Relief Valve
Connection (in. NPTF) 3/ 3/ 3/ 3/ 3/ 3/ 3/ 3/
4 4 4 4 4 4 4 4
Flow Capacity (lb air/min) 31.7 31.7 31.7 31.7 31.7 31.7 31.7 31.7
Relief Setting (psig) 220 220 220 220 220 220 220 220
Standard Number of Passes 3 3 3 3 2 2 2 2
30HXA OIL SEPARATOR
Part No. 09RX400- 217 217 216 216 215 215 215 215
Maximum Refrigerant Pressure (psig) 320 320 320 320 320 320 320 320
Refrigerant Connections (in.)
Discharge Circuit A/B 21/8/21/8 21/8/21/8 21/8/21/8 21/8/21/8 21/8/21/8 21/8/21/8 21/8/21/8 21/8/21/8
Liquid Circuit A/B 11/8/11/8 11/8/11/8 11/8/11/8 11/8/11/8 11/8/11/8 11/8/11/8 11/8/11/8 11/8/11/8
Relief Valve
Connection (in. SAE Flare) 5/ 5/ 5/ 5/ 5/ 5/ 5/ 5/
8 8 8 8 8 8 8 8
Flow Capacity (lb air/min) 21.6 21.6 21.6 21.6 21.6 21.6 21.6 21.6
Relief Setting (psig) 320 320 320 320 320 320 320 320
CONDENSER (HXC) Shell and Tube with Enhanced Copper Tubes
Part No. 09RX400- 257 257 258 258 259 259 260 260
Net Fluid Volume (gal) 16.8 16.8 18.3 18.3 23.9 23.9 27.5 27.5
Maximum Refrigerant Pressure (psig) 220 220 220 220 220 220 220 220
Maximum Water-Side Pressure (psig) 300 300 300 300 300 300 300 300
Water Connections (in.) Victaulic Type Connection
Inlet and Outlet (Standard Pass) 5 5 5 5 5 5 5 5
Drain (NPT) (Standard Pass) 3/ 3/ 3/ 3/ 3/ 3/ 3/ 3/
8 8 8 8 8 8 8 8
Relief Valve
Connection (in. NPTF) 3/ 3/ 3/ 3/ 3/ 3/ 3/ 3/
4 4 4 4 4 4 4 4
Flow Capacity (lb air/min) 31.7 31.7 31.7 31.7 31.7 31.7 31.7 31.7
Relief Setting (psig) 220 220 220 220 220 220 220 220
Standard Number of Passes 2 2 2 2 2 2 2 2
DISCHARGE LINE†
Relief Valve
Connection (in. SAE Flare) 3/ 3/ 3/ 3/ 3/ 3/ 3/ 3/
8 8 8 8 8 8 8 8
Flow Capacity (lb air/min) 6.3 6.3 6.3 6.3 6.3 6.3 6.3 6.3
Setting (psig) 350 350 350 350 350 350 350 350
LEGEND
NPTF — National Pipe Thread Female
SAE — Society of Automotive Engineers
*Charges listed are for 30HXC units. The 30HXA units are shipped with
a nitrogen holding charge only. To determine the refrigerant charge
requirements for 30HXA units see the System Refrigerant Charge for
Start-Up table in the Application Data on page 29.
†Only on units with factory-installed suction service valves.

6
 ENGLISH (cont)
UNIT SIZE 30HX 161 171 186 206 246 261 271
UNIT OPERATING WEIGHT (lb)
Water-Cooled (HXC) 7452 7660 7854 10,581 10,969 10,992 11,029
Condenserless (HXA) 5752 5777 5946 7,485 7,621 7,621 7,621
COMPRESSORS Semi-Hermetic, Twin Screw
Quantity 2 2 2 3 3 3 3
Nominal Capacity per Compressor (tons) 80/56 66/80 80/80 66/39/80 80/56/80 80/66/80 80/80/80
Economizer Yes Yes Yes Yes Yes Yes Yes
No. Capacity Steps
30HXC Unit 6 6 6 8 8 8 8
30HXA Unit (maximum on 30HXC unit
with factory-installed option) 8 8 8 11 11 11 11
Minimum Step Capacity (%)
30HXC Unit 20 20 20 13 13 13 13
30HXA Unit (30HXC unit with factory-
installed option) 10 10 10 7 7 7 7
REFRIGERANT R-134a
Charge* (lb) Circuit A/Circuit B 157/110 119/140 135/135 220/135 220/135 220/135 220/135
COOLER TYPE Shell and Tube with Enhanced Copper Tubes
Part No. 10HX400- 601 611 621 631 632 632 632
Net Fluid Volume (gal) 28.5 28.5 33.4 43.1 47.2 47.2 47.2
Maximum Refrigerant Pressure (psig) 220 220 220 220 220 220 220
Maximum Water-Side Pressure (psig) 300 300 300 300 300 300 300
Water Connections
Inlet and Outlet (in.) (Standard Pass) 5 5 5 6 6 6 6
Drain (in. NPT) (Standard Pass) 3/ 3/ 3/ 3/ 3/ 3/ 3/
8 8 8 8 8 8 8
Relief Valve
Connection (in. NPTF) 3 /4 3 /4 3 /4 3 /4 3 /4 3/4 3 /4
Flow Capacity (lb air/min) 31.7 31.7 31.7 31.7 31.7 31.7 31.7
Relief Setting (psig) 220 220 220 220 220 220 220
Standard Number of Passes 2 2 2 2 2 2 2
30HXA OIL SEPARATOR
Part No. 09RX400- 215 214 214 213 213 213 213
Maximum Refrigerant Pressure (psig) 320 320 320 320 320 320 320
Refrigerant Connections (in.)
Discharge Circuit A/B 21/8/21/8 21/8/21/8 21/8/21/8 21/8/21/8 21/8/21/8 21/8/21/8 21/8/21/8
Liquid Circuit A/B 13/8/13/8 13/8/13/8 13/8/13/8 15/8/13/8 15/8/13/8 15/8/13/8 15/8/13/8
Relief Valve
Connection (in. SAE Flare) 5/ 5/ 5/ 5/ 5/ 5/ 5/
8 8 8 8 8 8 8
Flow Capacity (lb air/min) 21.6 21.6 21.6 21.6 21.6 21.6 21.6
Relief Setting (psig) 320 320 320 320 320 320 320
CONDENSER (HXC) Shell and Tube with Enhanced Copper Tubes
Part No. 09RX400- 261 262 262 263 264 264 264
Net Fluid Volume (gal) 30.6 37.6 37.6 47.6 55.1 55.1 55.1
Maximum Refrigerant Pressure (psig) 220 220 220 220 220 220 220
Maximum Water-Side Pressure (psig) 300 300 300 300 300 300 300
Water Connections (in.) Victaulic Type Connection
Inlet and Outlet (Standard Pass) 6 6 6 8 8 8 8
Drain (NPT) (Standard Pass) 3 /8 3 /8 3 /8 3 /8 3 /8 3/8 3 /8
Relief Valve
Connection (in. NPTF) 3/ 3/ 3/ 3/ 3/ 3/ 3/
4 4 4 4 4 4 4
Flow Capacity (lb air/min) 31.7 31.7 31.7 31.7 31.7 31.7 31.7
Relief Setting (psig) 220 220 220 220 220 220 220
Standard Number of Passes 2 2 2 2 2 2 2
DISCHARGE LINE†
Relief Valve
Connection (in. SAE Flare) 3/ 3/ 3/ 3/ 3/ 3/ 3/
8 8 8 8 8 8 8
Flow Capacity (lb air/min) 6.3 6.3 6.3 6.3 6.3 6.3 6.3
Setting (psig) 350 350 350 350 350 350 350
LEGEND
NPTF — National Pipe Thread Female
SAE — Society of Automotive Engineers
*Charges listed are for 30HXC units. The 30HXA units are shipped with
a nitrogen holding charge only. To determine the refrigerant charge
requirements for 30HXA units see the System Refrigerant Charge for
Start-Up table in the Application Data on page 29.
†Only on units with factory-installed suction service valves.

7
Physical data (cont)
SI
UNIT SIZE 30HX 076 086 096 106 116 126 136 146
UNIT OPERATING WEIGHT (kg)
Water-Cooled (HXC) 2586 2597 2657 2803 2911 2933 3034 3048
Condenserless (HXA) 2140 2152 2194 2337 2342 2362 2408 2420
COMPRESSORS Semi-Hermetic, Twin Screw
Quantity 2 2 2 2 2 2 2 2
Nominal Capacity per Compressor (kW) 137/137 162/137 197/137 232/137 232/137 232/197 281/197 281/232
Economizer No No No No No No No No
No. Capacity Steps
30HXC Unit 6 6 6 6 6 6 6 6
30HXA Unit (maximum on 30HXC unit
with factory-installed option) 8 8 8 8 8 8 8 8
Minimum Step Capacity (%)
30HXC Unit 20 20 20 20 20 20 20 20
30HXA Unit (30HXC unit with factory-
installed option) 10 10 10 10 10 10 10 10
REFRIGERANT R-134a
Charge* (kg) Circuit A/Circuit B 34.1/34.1 34.5/34.1 42.7/31.8 49.9/31.8 50.8/40.4 50.8/40.4 56.3/40.4 54.0/45.4
COOLER Shell and Tube with Enhanced Copper Tubes
Part No. 10HX400- 401 401 402 408 406 406 405 405
Net Fluid Volume (L) 64.3 64.3 71.9 85.5 81.0 81.0 90.8 90.8
Maximum Refrigerant Pressure (kPa) 1517 1517 1517 1517 1517 1517 1517 1517
Maximum Water-Side Pressure (kPa) 2068 2068 2068 2068 2068 2068 2068 2068
Water Connections
Inlet and Outlet (in.) (Standard Pass) 4 4 4 5 5 5 5 5
Drain (in. NPT) (Standard Pass) 3/8 3 /8 3 /8 3 /8 3 /8 3 /8 3 /8 3 /8
Relief Valve
Connection (in. NPTF) 3/ 3/ 3/ 3/ 3/ 3/ 3/ 3/
4 4 4 4 4 4 4 4
Flow Capacity (kg air/min) 14.38 14.38 14.38 14.38 14.38 14.38 14.38 14.38
Relief Setting (kPa) 1517 1517 1517 1517 1517 1517 1517 1517
Standard Number of Passes 3 3 3 3 2 2 2 2
30HXA OIL SEPARATOR
Part No. 09RX400- 217 217 216 216 215 215 215 215
Maximum Refrigerant Pressure (kPa) 2205 2205 2205 2205 2205 2205 2205 2205
Refrigerant Connections (in.)
Discharge A/B 21/8/21/8 21/8/21/8 21/8/21/8 21/8/21/8 21/8/21/8 21/8/21/8 21/8/21/8 21/8/21/8
Liquid A/B 11/8/21/8 11/8/11/8 11/8/11/8 11/8/11/8 11/8/11/8 11/8/11/8 11/8/11/8 11/8/11/8
Relief Valve
Connection (in. SAE Flare) 5/ 5/ 5/ 5/ 5/ 5/ 5/ 5/
8 8 8 8 8 8 8 8
Flow Capacity (kg air/min) 9.80 9.80 9.80 9.80 9.80 9.80 9.80 9.80
Relief Setting (kPa) 2206 2206 2206 2206 2206 2206 2206 2206
CONDENSER (HXC) Shell and Tube with Enhanced Copper Tubes
Part No. 09RX400- 257 257 258 258 259 259 260 260
Net Fluid Volume (L) 63.6 63.6 69.3 69.3 90.5 90.5 104.1 104.1
Maximum Refrigerant Pressure (kPa) 1517 1517 1517 1517 1517 1517 1517 1517
Maximum Water-Side Pressure (kPa) 2068 2068 2068 2068 2068 2068 2068 2068
Water Connections (in.) Victaulic Type Connection
Inlet and Outlet (Standard Pass) 5 5 5 5 5 5 5 5
Drain (NPT) (Standard Pass) 3/ 3/ 3/ 3/ 3/ 3/ 3/ 3/
8 8 8 8 8 8 8 8
Relief Valve
Connection (in. NPTF) 3/ 3/ 3/ 3/ 3/ 3/ 3/ 3/
4 4 4 4 4 4 4 4
Flow Capacity (kg air/min) 14.38 14.38 14.38 14.38 14.38 14.38 14.38 14.38
Relief Setting (kPa) 1517 1517 1517 1517 1517 1517 1517 1517
Standard Number of Passes 2 2 2 2 2 2 2 2
DISCHARGE LINE†
Relief Valve
Connection (in. SAE Flare) 3/ 3/ 3/ 3/ 3/ 3/ 3/ 3/
8 8 8 8 8 8 8 8
Flow Capacity (kg air/min) 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9
Relief Pressure (kPa) 2413 2413 2413 2413 2413 2413 2413 2413
LEGEND
NPTF — National Pipe Thread Female
SAE — Society of Automotive Engineers
*Charges listed are for 30HXC units. The 30HXA units are shipped with
a nitrogen holding charge only. To determine the refrigerant charge
requirements for 30HXA units see the System Refrigerant Charge for
Start-Up table in the Application Data on page 29.
†Only on units with factory-installed suction service valves.

8
 SI (cont)
UNIT SIZE 30HX 161 171 186 206 246 261 271
UNIT OPERATING WEIGHT (kg)
Water-Cooled (HXC) 3381 3475 3564 4799 4976 4986 5003
Condenserless (HXA) 2610 2621 2698 3395 3457 3457 3457
COMPRESSORS Semi-Hermetic, Twin Screw
Quantity 2 2 2 3 3 3 3
Nominal Capacity per Compressor (kW) 281/197 232/281 281/281 232/137/281 281/197/281 281/232/281 281/281/281
Economizer Yes Yes Yes Yes Yes Yes Yes
No. Capacity Steps
30HXC Unit 6 6 6 8 8 8 8
30HXA Unit (maximum on 30HXC unit
with factory-installed option) 8 8 8 11 11 11 11
Minimum Step Capacity (%)
30HXC Unit 20 20 20 13 13 13 13
30HXA Unit (30HXC unit with factory-
installed option) 10 10 10 7 7 7 7
REFRIGERANT R-134a
Charge* (kg) Circuit A/Circuit B 71.3/49.9 54.0/63.6 61.3/61.3 90.8/61.3 99.9/61.3 99.9/61.3 99.9/61.3
COOLER Shell and Tube with Enhanced Copper Tubes
Part No. 10HX400- 601 611 621 631 632 632 632
Net Fluid Volume (L) 107.9 107.9 126.4 163.2 178.7 178.8 178.7
Maximum Refrigerant Pressure (kPa) 1517 1517 1517 1517 1517 1517 1517
Maximum Water-Side Pressure (kPa) 2068 2068 2068 2068 2068 2068 2068
Water Connections
Inlet and Outlet (in.) (Standard Pass) 5 5 5 6 6 6 6
Drain (in. NPT) (Standard Pass) 3/ 3/ 3/ 3/ 3/ 3/ 3/
8 8 8 8 8 8 8
Relief Valve
Connection (in. NPTF) 3 /4 3/4 3 /4 3 /4 3 /4 3 /4 3 /4
Flow Capacity (kg air/min) 14.28 14.38 14.38 14.38 14.38 14.38 14.38
Relief Setting (kPa) 1517 1517 1517 1517 1517 1517 1517
Standard Number of Passes 2 2 2 2 2 2 2
30HXA OIL SEPARATOR
Part No. 09RX400- 215 214 214 213 213 213 213
Maximum Refrigerant Pressure (kPa) 2205 2205 2205 2205 2205 2205 2205
Refrigerant Connections (in.)
Discharge A/B 21/8/21/8 21/8/21/8 21/8/21/8 21/8/21/8 21/8/21/8 21/8/21/8 21/8/21/8
Liquid A/B 13/8/13/8 13/8/13/8 13/8/13/8 15/8/13/8 15/8/13/8 15/8/13/8 15/8/13/8
Relief Valve
Connection (in. SAE Flare) 5/ 5/ 5/ 5/ 5/ 5/ 5/
8 8 8 8 8 8 8
Flow Capacity (kg air/min) 9.80 9.80 9.80 9.80 9.80 9.80 9.80
Relief Setting (kPa) 2206 2206 2206 2206 2206 2206 2206
CONDENSER (HXC) Shell and Tube with Enhanced Copper Tubes
Part No. 09RX400- 261 262 262 263 264 264 264
Net Fluid Volume (L) 115.8 142.3 142.3 177.9 208.6 208.6 208.6
Maximum Refrigerant Pressure (kPa) 1517 1517 1517 1517 1517 1517 1517
Maximum Water-Side Pressure (kPa) 2068 2068 2068 2068 2068 2068 2068
Water Connections (in.) Victaulic Type Connection
Inlet and Outlet (Standard Pass) 6 6 6 8 8 8 8
Drain (NPT) (Standard Pass) 3 /8 3/8 3 /8 3 /8 3 /8 3 /8 3 /8
Relief Valve
Connection (in. NPTF) 3/ 3/ 3/ 3/ 3/ 3/ 3/
4 4 4 4 4 4 4
Flow Capacity (kg air/min) 14.38 14.38 14.38 14.38 14.38 14.38 14.38
Relief Setting (kPa) 1517 1517 1517 1517 1517 1517 1517
Standard Number of Passes 2 2 2 2 2 2 2
DISCHARGE LINE†
Relief Valve
Connection (in. SAE Flare) 3/ 3/ 3/ 3/ 3/ 3/ 3/
8 8 8 8 8 8 8
Flow Capacity (kg air/min) 2.9 2.9 2.9 2.9 2.9 2.9 2.9
Relief Pressure (kPa) 2413 2413 2413 2413 2413 2413 2413
LEGEND
NPTF — National Pipe Thread Female
SAE — Society of Automotive Engineers
*Charges listed are for 30HXC units. The 30HXA units are shipped with
a nitrogen holding charge only. To determine the refrigerant charge
requirements for 30HXA units see the System Refrigerant Charge for
Start-Up table in the Application Data on page 29.
†Only on units with factory-installed suction service valves.

9
Options and accessories
FACTORY- FIELD-
ITEM INSTALLED INSTALLED
OPTION ACCESSORY
Wye-Delta Start X
Brine X
Minus-One-Pass Cooler Head X
Plus-One-Pass Cooler Head X
Control Power Transformer X
Minimum Load Control X X
Sound Reduction Enclosure X
Vibration Isolation X
Temperature Reset Sensor X
Chillervisor System Manager III X
Cooler Head Insulation X
Suction Service Valves X
Energy Management Module X X
Nitrogen Holding Charge (30HXC) X
BACnet Communications X

Factory-installed options temperature reset. These types of reset are available with
Wye-delta start — Generally, Wye-delta start is not the main board. However, an accessory thermistor is
required when using multiple compressors since the start- required for outdoor air and/or space temperature reset.)
ing current is generally less than with one larger compres- Demand limiting allows the unit capacity to be limited dur-
sor using Wye-delta start. Wye-delta start is standard on ing periods of peak energy usage. Demand limit requires
208/230 v, 60 Hz, 230 v, 60 Hz, and 230 v, 50 Hz units. an external 4 to 20 mA signal or a 2-step remote pair of
It is available as a factory-installed option for all other unit dry contacts. Both the 4 to 20 mA and 2-step demand
voltages. limit percentage values are adjustable. EMM is also avail-
able as a field-installed accessory.
Brine — The brine option permits supply liquid tempera-
tures to be set below 40 F (4.4 C). Refrigeration circuit Nitrogen holding charge — The 30HXC units can be
components, such as the expansion device, are modified at shipped with either the standard HFC-134a refrigerant
the factory to correct for the lower refrigeration flow rates. charge or an optional nitrogen charge. The 30HXA units
Special installation requirements apply to brine units. See are always shipped with a nitrogen holding charge.
Cooler and Water-Cooled Condenser Freeze Protection BACnet communication option — Provides factory
section, page 24. installed communication capability with a BACnet MS/TP
Minus-one-pass cooler — This factory-installed option network. Allows integration with i-Vu® Open control sys-
reduces pressure drop for high flow applications and/or tem or a BACnet building automation system.
provides same end inlet and outlet for 076-106 sizes, or Field-installed accessories
opposite end inlet and outlet on 116-271 sizes.
Control power transformer — The transformer is sized
Plus-one-pass cooler — This factory-installed option to supply the needs of the control circuit, sourcing power
improves low temperature brine performance. See the from the main unit power connection.
30HX electronic catalog for performance data.
Minimum load control — This accessory allows addi-
Minimum load control — This option allows additional tional capacity reduction for unit operation below the mini-
capacity reduction for unit operation below the minimum mum step of unloading (down to 10% of full load capacity).
step of unloading (down to 10% of full load capacity). Minimum load control is also available as a factory-installed
Minimum load control is also available as a field-installed option.
accessory.
Sound reduction enclosure — This kit contains a
Suction service valves — Standard refrigerant dis- sound enclosure that covers the entire unit to reduce sound
charge isolation and liquid valves enable service personnel levels.
to store the refrigerant charge in the cooler or condenser
Vibration isolation — Neoprene isolators are field
during servicing. This factory-installed option allows further
isolation of the compressor from the cooler vessel. installed to reduce vibration transmission from the com-
pressor through the floor and into the conditioned space.
Energy management module (EMM) — The EMM is
Temperature reset sensor — This accessory sensor
used for 4 to 20 mA leaving fluid temperature reset, cool-
ing point reset, 4 to 20 mA demand limit and two-step provides temperature reset capability from either the occu-
demand limit. Temperature reset lets the unit reset the pied space or outdoor-air temperature.
leaving fluid temperature to a higher temperature during NOTE: Temperature reset capability using return tempera-
low load conditions. Temperature reset can also be accom- ture is standard.
plished based on return fluid, outdoor air or space temper-
ature. (The EMM option is not required when using *Sponsored by ASHRAE (American Society of Heating, Refrigerating,
entering-water, outdoor-air, or space temperature for and Air Conditioning Engineers).

10
Chillervisor System Manager III — This control can be temperature. (The EMM option is not required when using
used to regulate up to eight 30HXA or 30HXC chillers. entering-water, outdoor-air, or space temperature for tem-
Cooler head insulation — This accessory is designed perature reset. These types of reset are available with the
with flexible, 3/4 in. (19 mm) PVC foam (closed-cell) to main board. However, an accessory thermistor is required
insulate the cooler heads to minimize heat loss and head for outdoor air and/or space temperature reset.) Demand
sweating. limiting allows the unit capacity to be limited during periods
of peak energy usage. Demand limit requires an external 4
Energy management module (EMM) — The EMM is to 20 mA signal or a 2-step remote pair of dry contacts.
used for 4 to 20 mA leaving fluid temperature reset, cool-
Both the 4 to 20 mA and 2-step demand limit percentage
ing point reset, 4 to 20 mA demand limit and two-step values are adjustable. EMM is also available as a factory-
demand limit. Temperature reset lets the unit reset the installed option.
leaving fluid temperature to a higher temperature during
low load conditions. Temperature reset can also be accom- Consult factory for other available options not
plished based on return fluid, outdoor air or space listed here.

11
12
30HXC076-106

NOTES:
WGT DISTRIBUTION AT EACH 1. Operating weight includes weight of water and refrigerant.
OPERATING MTG PLATE - lb (kg)
UNIT B C E L
WEIGHT - lb (kg) 2. Denotes center of gravity.
1 2 3 4 5 6
5700 45.87 45.87 32.50 65.22 738 943 595 1110 1418 896 3. Dimensions are in inches (mm).
30HXC076 4. Recommended service clearance around machine is 36 in. (914.4 mm).
(2586) (1165) (1165) (826) (1657) (335) (428) (270) (503) (643) (406)
5. Victaulic nozzles are standard on all models. Flow switch factory
30HXC086 5723 45.87 45.87 32.50 65.22 738 947 597 1112 1427 902 installed in cooler inlet victaulic nozzle.
(2597) (1165) (1165) (826) (1657) (335) (430) (271) (504) (647) (409)
30HXC096 5855 54.12 37.63 32.50 65.22 686 968 693 1027 1447 1034
(2657) (1375) (956) (826) (1657) (311) (439) (314) (466) (656) (469)
Dimensions

6177 54.12 37.63 33.50 67.22 730 1028 744 1073 1510 1092
30HXC106
(2803) (1375) (956) (851) (1707) (331) (466) (337) (487) (685) (495)

a30-4647.eps
 30HXC116-146
NOTES:
WGT DISTRIBUTION AT EACH 1. Operating weight includes weight of water and refrigerant.
OPERATING MTG PLATE - lb (kg)
UNIT
WEIGHT - lb (kg) 2. Denotes center of gravity.
1 2 3 4 5 6
6415 728 1114 777 1053 1615 1127 3. Dimensions are in inches (mm).
30HXC116 4. Recommended service clearance around machine is 36 in.
(2911) (330) (505) (352) (478) (733) (511)
(914.4 mm).
6465 738 1127 780 1061 1628 1131 5. Victaulic nozzles are standard on all models. Flow switch fac-
30HXC126
(2933) (335) (511) (354) (481) (738) (513) tory installed in cooler inlet victaulic nozzle.
6688 758 1176 811 1083 1689 1171
30HXC136
(3034) (344) (533) (368) (491) (766) (531)
30HXC146 6718 763 1182 815 1085 1697 1172
(3048) (346) (536) (370) (492) (770) (532)
a30-4648

13
14
30HXC161-186
NOTES:
OPERATING WGT DISTRIBUTION AT EACH 1. Operating weight includes weight
UNIT WEIGHT - B C MTG PLATE - lb (kg) of water and refrigerant.
lb (kg) 1 2 3 4 5 6 2. Denotes center of gravity.
7452 72.12 50.63 817 1272 908 1219 1890 1346
30HXC161 3. Dimensions are in inches (mm).
(3381) (1832) (1286) (371) (577) (412) (553) (857) (610)
4. Recommended service clearance
7660 61.37 61.37 936 1318 840 1379 1946 1241 around machine is 36 in.
30HXC171 (3475) (1559) (1559) (425) (598) (381) (626) (883) (563) (914.4 mm).
7854 61.37 61.37 962 1361 860 1410 1996 1265 5. Victaulic nozzles are standard on
30HXC186 (3564) (1559) (1559) (436) (617) (390) (640) (905) (574) all models. Flow switch factory
installed in cooler inlet victaulic
nozzle.
Dimensions (cont)

a30-4649
 30HXC206-271

NOTES:
WGT DISTRIBUTION AT EACH 1. Operating weight includes weight of water and refrigerant.
OPERATING MTG PLATE - lb (kg)
UNIT A
WEIGHT - lb (kg) 2. Denotes center of gravity.
1 2 3 4 5 6
10581 33.88 948 2406 1243 1201 3133 1650 3. Dimensions are in inches (mm).
30HXC206 4. Recommended service clearance around machine is 36 in. (914.4 mm).
(4799) (860) (430) (1091) (564) (545) (1421) (748)
5. Victaulic nozzles are standard on all models. Flow switch factory installed
30HXC246 10969 34.38 985 2515 1306 1154 3276 1733 in cooler inlet victaulic nozzle.
(4976) (873) (447) (1141) (592) (523) (1486) (786)
10992 34.38 985 2520 1311 1154 3283 1739
30HXC261
(4986) (873) (447) (1143) (595) (523) (1489) (789)
11029 34.38 985 2529 1318 1154 3294 1749
30HXC271 (5003) (873) (447) (1147) (598) (523) (1494) (793)

15
16
30HXA076-106

OPERATING WGT DISTRIBUTION AT EACH

UNIT WEIGHT B C E L P R S MTG PLATE - lb (kg)
- lb (kg) 1 2 3 4 5 6
30HXA076 4717 45.87 45.87 32.50 65.22 3.88 41.25 46.25 555 793 418 926 1326 699
(2140) (1165) (1165) (826) (1657) (99) (1048) (1175) (252) (360) (190) (420) (601) (317)
30HXA086 4744 45.87 45.87 32.50 65.22 3.88 41.25 46.25 555 798 418 928 1340 705
(2152) (1165) (1165) (826) (1657) (99) (1048) (1175) (252) (362) (190) (421) (608) (320)
30HXA096 4835 54.12 37.63 32.50 65.22 6.25 49.50 38.00 509 808 493 848 1350 827
(2194) (1375) (956) (826) (1657) (159) (1257) (965) (231) (367) (224) (385) (612) (375)
5151 54.12 37.63 33.50 67.22 6.25 49.50 38.00 555 869 541 896 1410 880
30HXA106 (2337) (1375) (956) (851) (1707) (159) (1257) (965) (252) (394) (245) (406) (640) (399)
Dimensions (cont)

NOTES:
1. Operating weight includes weight of water and
refrigerant.
2. Denotes center of gravity.
3. Dimensions are in inches (mm).
4. Recommended service clearance around
machine is 36 in. (914.4 mm).
5. Victaulic nozzles are standard on all models.
Flow switch factory installed in cooler inlet vic-
taulic nozzle.
 30HXA116-146

OPERATING WGT DISTRIBUTION AT EACH

UNIT WEIGHT MTG PLATE - lb (kg)
- lb (kg) 1 2 3 4 5 6
5163 530 895 540 855 1456 887
30HXA116
(2342) (240) (406) (245) (388) (660) (402)
30HXA126 5205 540 905 541 864 1468 887
(2362) (245) (410) (245) (392) (666) (402)
30HXA136 5309 548 926 555 874 1498 908
(2408) (249) (420) (252) (396) (679) (412)
5333 551 930 555 883 1506 908
30HXA146
(2420) (250) (422) (252) (400) (683) (412)

NOTES:
1. Operating weight includes weight of water and
refrigerant.
2. Denotes center of gravity.
3. Dimensions are in inches (mm).
4. Recommended service clearance around
machine is 36 in. (914.4 mm).
5. Victaulic nozzles are standard on all models. Flow
switch factory installed in cooler inlet victaulic
nozzle.

17
18
30HXA161-186

WGT DISTRIBUTION AT EACH

OPERATING MTG PLATE - lb (kg)
UNIT B C R S T
WEIGHT - lb (kg)
1 2 3 4 5 6
5752 72.12 50.63 67.50 51.00 48.75 560 965 598 954 1650 1025
30HXA161
(2610) (1832) (1286) (1715) (1295) (1238) (254) (438) (271) (433) (748) (465)
5777 61.37 61.37 56.75 61.75 44.31 627 968 534 1072 1658 918
30HXA171
(2621) (1559) (1559) (1441) (1532) (1125) (284) (439) (242) (486) (752) (416)
30HXA186 5946 61.37 61.37 56.75 61.75 44.31 648 1004 552 1110 1703 939
(2698) (1559) (1559) (1441) (1532) (1125) (294) (455) (250) (504) (772) (426)
Dimensions (cont)

NOTES:
1. Operating weight includes weight of water and refrigerant.
2. Denotes center of gravity.
3. Dimensions are in inches (mm).
4. Recommended service clearance around machine is 36 in.
(914.4 mm).
5. Victaulic nozzles are standard on all models. Flow switch
factory installed in cooler inlet victaulic nozzle.
 30HXA206-271

WGT DISTRIBUTION AT EACH

OPERATING MTG PLATE - lb (kg)
UNIT
WEIGHT - lb (kg)
1 2 3 4 5 6
7485 671 1702 879 850 2216 1167
30HXA206
(3395) (304) (772) (399) (385) (1005) (529)
7621 681 1748 911 797 2276 1209
30HXA246 (3457) (309) (793) (413) (362) (1032) (1548)
30HXA261 7621 681 1748 911 797 2276 1209
(3457) (309) (793) (413) (362) (1032) (1548)
7621 681 1748 911 797 2276 1209
30HXA271 (3457) (309) (793) (413) (362) (1032) (1548)

NOTES:
1. Operating weight includes weight of water and refrigerant.
2. Denotes center of gravity.
3. Dimensions are in inches (mm).
4. Recommended service clearance around machine is 36 in. (914.4 mm).
5. Victaulic nozzles are standard on all models. Flow switch factory installed
in cooler inlet victaulic nozzle.

19
20
ACCESSORY SOUND ENCLOSURE
Dimensions (cont)

NOTES: 6. Recommended control wiring entry area. Notch to suit and cover/
1. Dimensions are in inches (millimeters). insulate remaining open area for acoustic purposes.
2. Recommended service clearance around machine is 36 in. (914.4). 7. Recommended cooler relief valve vent line and 30HXC condenser relief
3. Unused portion of piping openings must be closed and insulated vent line entry area. The 30HXA discharge and liquid line entry areas
for acoustic purposes. Use filler panel in accessory package. are on opposite side. Notch enclosure to suit particular installation.
4. Field-fabricated holes must be closed and insulated for acoustic 8. Model in drawing is typical and represents 30HX116-146 sizes in the
purposes. 30HX-900---001 accessory sound enclosure.
5. Recommended electrical power supply area. Notch to suit and 9. Sound enclosure accessory should be aligned to the center lines of the
cover/insulate remaining open area for acoustic purposes. control panel access and piping openings.
 WEIGHT DISTRIBUTION AT MOUNTING PLATES

5.00
(127.00)
0.88
(22.35) 3.25
(82.55)
1.42
(36.07)

2.17
0.50 DIA (53.34)
(4) HOLES
WEIGHT DISTRIBUTION AT EACH MOUNTING PLATE 3.58
(90.93)

NOTE: Dimensions shown in inches (mm).

30HX FOOT

30HXC UNITS — lb (kg)

MOUNTING PLATE NO.
UNIT 30HXC
1 2 3 4 5 6
076 738 (335) 943 (428) 595 (270) 1110 (503) 1418 (643) 896 (406)
086 738 (335) 947 (430) 597 (271) 1112 (504) 1427 (647) 902 (409)
096 686 (311) 968 (439) 693 (314) 1027 (466) 1447 (656) 1034 (469)
106 730 (331) 1028 (466) 744 (337) 1073 (487) 1510 (685) 1092 (495)
116 728 (330) 1114 (505) 777 (352) 1053 (478) 1615 (733) 1127 (511)
126 738 (335) 1127 (511) 780 (354) 1061 (481) 1628 (738) 1131 (513)
136 758 (344) 1176 (533) 811 (368) 1083 (491) 1689 (766) 1171 (531)
146 763 (346) 1182 (536) 815 (370) 1085 (492) 1697 (770) 1172 (532)
161 817 (371) 1272 (577) 908 (412) 1219 (553) 1890 (857) 1346 (610)
171 936 (425) 1318 (598) 840 (381) 1379 (626) 1946 (883) 1241 (563)
186 962 (436) 1361 (617) 860 (390) 1410 (640) 1996 (905) 1265 (574)
206 948 (430) 2406 (1091) 1243 (564) 1201 (545) 3133 (1421) 1650 (748)
246 985 (447) 2515 (1141) 1306 (592) 1154 (523) 3276 (1486) 1733 (786)
261 985 (447) 2520 (1143) 1311 (595) 1154 (523) 3283 (1489) 1739 (789)
271 985 (447) 2529 (1147) 1318 (598) 1154 (523) 3294 (1494) 1749 (793)

30HXA UNITS — lb (kg)

MOUNTING PLATE NO.
UNIT 30HXA
1 2 3 4 5 6
076 555 (252) 793 (360) 418 (190) 926 (420) 1326 (601) 699 (317)
086 555 (252) 798 (362) 418 (190) 928 (421) 1340 (608) 705 (320)
096 509 (231) 808 (367) 493 (224) 848 (385) 1350 (612) 827 (375)
106 555 (252) 869 (394) 541 (245) 896 (406) 1410 (640) 880 (399)
116 530 (240) 895 (406) 540 (245) 855 (388) 1456 (660) 887 (402)
126 540 (245) 905 (410) 541 (245) 864 (392) 1468 (666) 887 (402)
136 548 (249) 926 (420) 555 (252) 873 (396) 1498 (679) 908 (412)
146 551 (250) 930 (422) 555 (252) 883 (400) 1506 (683) 908 (412)
161 560 (254) 965 (438) 598 (271) 954 (433) 1650 (748) 1025 (465)
171 627 (284) 968 (439) 534 (242) 1072 (486) 1658 (752) 918 (416)
186 648 (294) 1004 (455) 552 (250) 1110 (504) 1703 (772) 939 (426)
206 671 (304) 1702 (772) 879 (399) 850 (385) 2216 (1005) 1167 (529)
246 681 (309) 1748 (793) 911 (413) 797 (362) 2276 (1032) 1209 (548)
261 681 (309) 1748 (793) 911 (413) 797 (362) 2276 (1032) 1209 (548)
271 681 (309) 1748 (793) 911 (413) 797 (362) 2276 (1032) 1209 (548)

NOTE: See pages 12-19 for center of gravity details.

21
Application data
Unit storage Temperature can also be reset using a 4 to 20 mA signal
Provide machine protection — Store machine and from the control system. This type of reset requires the
starter indoors, protected from construction dirt and energy management module accessory.
moisture. Inspect under shipping tarps, bags, or crates to Condenser fluid temperature
be sure water has not collected during transit. Keep protec-
1. Maximum leaving condenser fluid temperature is
tive shipping covers in place until machine is ready for
installation. 110 F (43 C) on all 30HXC units.
2. Standard 30HXC units will start at entering con-
Unit location denser fluid temperatures above 55 F (12.8 C). In
Unit should be level (particularly in its major lengthwise general, however, continuous machine operation with
dimension) to assure proper oil return. entering condenser fluid temperatures below 70 F
The unit should be located indoors in an area of temper- (21.1 C) is not recommended. When the entering
ature between 50 to 104 F (10 to 40 C). condenser fluid temperature is expected to drop
below 70 F (21.1 C), it is recommended that some
Good acoustic design practice should be followed, i.e., form of condenser flow control be used to optimize
unit should not be located adjacent to sound-sensitive areas
performance. Tower pump, bypass valves, or flow
unless appropriate consideration has been made. regulating valves may be controlled by a 4 to 20 mA
Cooler fluid temperature output from the 30HXC control (60-second open to
1. Maximum leaving water (fluid) temperature (LWT) is close time recommended for actuator).
60 F (21 C). Unit can start and pull down with up to Cooler and water-cooled condenser
95 F (35 C) entering water (fluid) temperature due to temperature rise
MOP (maximum operating pressure) feature of the
Ratings and performance data in this publication are for a
expansion valve. For sustained operation, it is recom-
cooling temperature rise of 10° F (5.6° C). Units may be
mended that entering fluid temperature not exceed
operated at a different temperature rise, provided flow lim-
70 F (21.1 C).
its are not exceeded and corrections to capacity, etc., are
2. Minimum LWT is 40 F (4.4 C) for standard units. made. For minimum flow rates, see the Minimum Flow
The brine option is required for operation with Rates table. High flow rate is limited by pressure drop that
leaving fluid temperatures in the range of 39 to 14 F can be tolerated.
(4 to –9 C). For ratings below 40 F (4.4 C) LWT,
Minimum cooler flow — Flow (maximum cooler tem-
contact your local Carrier representative.
perature rise) is shown in the Minimum Flow Rates table.
3. Minimum entering water (fluid) temperature (EWT) is Minimum flow rate must be maintained to prevent fouling.
45 F (7.2 C). Maximum EWT is 70 F (21.1 C). When gpm (L/s) required is lower (or rise is higher), follow
Leaving-fluid temperature reset recommendations below:
The accessory reset sensor can be applied to the chiller to 1. Multiple smaller chillers can be applied in series, each
provide reset of in LWT constant fluid flow systems. Reset providing a portion of the design temperature rise.
reduces compressor power usage at part load when design 2. Chilled fluid can be recirculated to raise flow rate.
LWT is not necessary. Humidity control should be consid- However, mixed temperature entering cooler must be
ered, since higher coil temperatures resulting from reset maintained at a minimum of at least 5° F (2.8° C)
will reduce latent heat capacity. Three reset applications above the leaving chilled fluid temperature.
are offered: 3. Special plus one-pass cooler can be used. Contact
From return-fluid temperature — Increases LWT set your Carrier representative for further information.
point as return (or entering) fluid temperature decreases Maximum cooler flow (> 5 gpm/ton or < 5° F rise
(indicating load decrease). Reset from return fluid may be [> 0.09 L/s · kW or < 2.7° C rise]) — Maximum flow
used in any application where return fluid provides accu- results in practical maximum pressure drop through cooler.
rate load indication. Limitation of return-fluid reset is that Special minus-one-pass cooler can be used to reduce pres-
the LWT may only be reset to value of design return-fluid sure drop. Contact your Carrier representative.
temperature. No additional hardware is required. Return fluid can bypass the cooler to keep pressure drop
From outdoor-air temperature — Increases LWT as through cooler within acceptable limits. This permits a
outdoor ambient temperature decreases (indicating load higher T with lower fluid flow through cooler and mixing
decrease). This reset should be applied only where outdoor after the cooler. Contact your Carrier representative if
ambient temperature is an accurate indication of load. A pressure drop appears excessive.
field-supplied thermistor is required. Variable cooler flow rates — These variable rates may
From occupied space temperature — Increases LWT be applied to standard 30HX series chillers. However, the
as space temperature decreases (indicating load decrease). unit will attempt to maintain a constant leaving chilled-fluid
This reset should be applied only where space temperature temperature. In such cases, minimum fluid loop volume
is an accurate indication of load. A field-supplied thermis- must be in excess of 3 gal per ton (3.2 L per kW) and flow
tor is required. rate must change in steps of less than 10% per minute.
Apply 6 gal per ton (6.5 L per kW) fluid loop volume mini-
mum if flow rate changes more rapidly.

22
Minimum water-cooled condenser flow — This value
(maximum rise) is shown in Minimum Flow Rates table. RECIRCULATION FLOW
Ensure leaving-fluid temperature does not exceed 105 F
(40.5 C).
MINIMUM FLOW RATES
COOLER MIN. FLOW COOLER TEMP
UNIT RATE* DIFFERENCE
DEVICE SIZE
30HX No. of
Passes Type GPM L/s F C
2 Minus 1 136.0 8.6 13 7.4
076 3 Standard 90.0 5.7 20 11.1
4 Plus 1 68.0 4.3 27 14.8
2 Minus 1 149.0 9.4 13 7.4
086 3 Standard 100.0 6.3 20 11.1 Oversizing chillers
4 Plus 1 75.0 4.7 27 14.8
2 Minus 1 169.0 10.7 13 7.4 Oversizing chillers by more than 15% at design conditions
096 3 Standard 113.0 7.1 20 11.1 must be avoided as the system operating efficiency will be
4 Plus 1 85.0 5.3 27 14.8 adversely affected (resulting in greater and/or excessive
2 Minus 1 188.0 11.8 13 7.4 electrical demand and cycling of compressors). When
106 3 Standard 125.0 7.9 20 11.1
future expansion of equipment is anticipated, install a sin-
4 Plus 1 94.0 5.9 27 14.8
1 Minus 1 272.0 17.2 10 5.6
gle chiller to meet present load requirements, and install a
116 2 Standard 136.0 8.6 20 11.1 second chiller to meet the additional load demand.
3 Plus 1 91.0 5.7 30 16.7 It is also recommended that the installation of 2 smaller
1 Minus 1 295.0 18.6 10 5.6
chillers be considered where operation at minimum load is
126 2 Standard 147.0 9.3 20 11.1
3 Plus 1 98.0 6.2 30 16.7
critical. The operation of 2 small chillers at higher loading
1 Minus 1 327.0 20.7 10 5.6 is preferred to operating a single chiller at or near its mini-
136 2 Standard 164.0 10.3 20 11.1 mum recommended value.
3 Plus 1 109.0 6.9 30 16.7
The minimum load control accessory should not be used
1 Minus 1 350.0 22.1 10 5.6
COOLER 146 2 Standard 175.0 11.0 20 11.1
as a means to allow oversizing chillers. Minimum load con-
3 Plus 1 117.0 7.4 30 16.7 trol should be given consideration where substantial oper-
1 Minus 1 376.0 23.7 10 5.6 ating time is anticipated below the minimum unloading
161 2 Standard 188.0 11.9 20 11.1 step.
3 Plus 1 125.0 7.9 30 16.7
1 Minus 1 399.0 25.2 10 5.6 Parallel chillers
171 2 Standard 199.0 12.6 20 11.1
Where chiller capacities greater than can be supplied by a
3 Plus 1 133.0 8.4 30 16.7
1 Minus 1 426.0 26.9 10 5.6
single 30HX chiller are required, or where stand-by capa-
186 2 Standard 213.0 13.4 20 11.1 bility is desired, chillers may be installed in parallel. Units
3 Plus 1 142.0 9.0 30 16.7 may be of the same or different sizes. However, cooler and
1 Minus 1 508.0 32.1 10 5.6 condenser flow rates must be balanced to ensure proper
206 2 Standard 254.0 16.0 20 11.1 flow to each chiller. The standard 30HX ComfortLink™
3 Plus 1 169.0 10.7 30 16.7
controls can be configured to provide lead/lag control
1 Minus 1 597.0 37.7 10 5.6
246 2 Standard 309.0 18.8 20 11.1
for two chillers. The accessory Chillervisor System Man-
3 Plus 1 199.0 12.6 30 16.7 ager III control may be used for proper leaving chilled fluid
1 Minus 1 618.0 39.0 10 5.6 temperature control and to ensure proper staging
261 2 Standard 309.0 19.5 20 11.1 sequence of up to 8 chillers. Refer to the accessory
3 Plus 1 206.0 13.0 30 16.7 Chillervisor System Manager III installation instructions for
1 Minus 1 642.0 40.5 10 5.6
further details.
271 2 Standard 321.0 20.3 20 11.1
3 Plus 1 214.0 13.5 30 16.7 Series chillers
076,086 2 — 105 6.6 — —
096,106 2 — 135 8.5 — — Chillers in series may be used for capacities greater than
116,126 2 — 170 10.7 — — those supplied by a single 30HX chiller. Using the minus-
136,146 2 — 195 12.3 — — one-pass cooler head option, fluid pressure drop across the
CONDENSER
161 2 — 235 14.8 — — cooler can be held to reasonable levels. The leaving fluid
171,186 2 — 255 16.1 — —
temperature sensors need not be relocated. However, the
206 2 — 273 17.2 — —
246 2 — 333 21.0 — —
cooler minimum entering fluid temperature limitations
261 2 — 333 21.0 — — should be considered for the chillers located downstream of
271 2 — 333 21.0 — — other chillers. The standard 30HX control can control two
*Based on 20 F (11.1 C) temperature difference at AHRI conditions. 30HX chillers in series. Condensers should be piped in
NOTES: parallel to maximize capacity and efficiency. This should
1. The 30HX units will start with loop temperatures up to 95 F (35 C).
2. Minimum flow rate shown is based on AHRI Ratings and is for reference only. also minimize condenser pressure drop and saturated con-
20 F (11.1 C) is the maximum cooler temperature differential that will densing temperatures. However, if condensers are piped in
determine actual minimum flow rate.
3. To obtain proper temperature control, loop fluid volume must be at least 3 gal/ series, ensure that the leaving fluid temperature does not
ton (3.23 L/kW) of chiller nominal capacity for air conditioning and at least
6 gal/ton (6.5 L/kW) for process applications.
exceed 105 F (40.5 C) on standard machines.

23
Application data (cont)
Energy management
Demand limiting and load shedding are popular techniques TANK INSTALLATION
used to reduce peak electric demands typically experienced
during hot summer days when air conditioning loads are
highest. When utility electricity demands exceed a certain
level, electrical loads are turned off to keep the peak
demands below a prescribed maximum limit. Compressor
unloading reduces electrical demand while allowing the
chiller to operate under part-load capacity and to maintain
partial chilled fluid cooling.
Electrical demand can be limited through demand limit
input to chiller control which unloads the chiller to a prede-
termined percentage of the load. One stage of unloading
can be initiated by a remote signal to significantly reduce
the chiller power consumption. This power reduction Fouling factor
applies to the full load power at nominal conditions. The The factor used to calculate tabulated ratings for the cooler
demand limit control should not be cycled less than is 0.00010 ft2 · hr · F/Btu (0.000018 m2 · K/W), and for
10 minutes on and 5 minutes off. the condenser is 0.00025 ft2 · hr · F/Btu (0.00044 m2 ·
K/W). As fouling factor is increased, unit capacity
Duty cycling decreases and compressor power increases. To determine
Duty cycling will cycle an electrical load at regular intervals, selections at other fouling factors, use the chiller program
regardless of electrical demand. This reduces the electrical in the electronic catalog.
demand by “fooling” demand measuring devices. Duty
cycling of the entire compressor is NOT recommended Cooler and water-cooled condenser freeze
since motor windings and bearings will be damaged by protection
constant cycling. If chiller refrigerant or fluid lines are in an area where ambi-
ent conditions fall below 32 F (0° C), it is recommended
Wye-delta start that an antifreeze solution be added to protect the unit and
Wye-delta start is standard on 30HX 208/230-v, 60-Hz fluid piping to a temperature 12° F (6.7° C) below the
units and 230-v, 50-Hz units and optional on all other lowest anticipated temperature. For corrections to perfor-
30HX units. This feature is not always required on 30HX mance, refer to the chiller program in the electronic
units due to the use of multiple compressors that allow small catalog.
electrical load increments, but is available if required. Maxi- Use only antifreeze solutions approved for heat
mum instantaneous current flow (see ICF in Electrical Data exchanger duty. Use of automotive antifreezes is not rec-
tables on pages 36-39) should be used in determining need. ommended because of the fouling that can occur once
Vibration isolation their relatively short-lived inhibitors break down.
External vibration isolators are available as field-installed If the system will not be used during freezing weather
accessories. conditions and the chiller and fluid piping are not protected
with an antifreeze solution, it is recommended that the
Strainers chiller and outdoor piping be drained.
A strainer with a minimum screen size of 20 mesh must be Refer to Cooler Fluid Temperature section, page 22, for
installed in both the cooler and condenser fluid lines, within leaving fluid temperature for brine units. When leaving
10 ft (3 m) of the inlets to both the cooler and condenser. chilled fluid temperatures will be lower than 40 F (4.4 C),
For 30HXA units, this requirement applies only to the an appropriate antifreeze solution must be used in the
cooler. cooler. In addition, the following special installation instruc-
Chilled fluid loop volume tions will apply:
The chilled fluid loop volume in circulation must equal or 1. In addition to the factory-mounted chilled water flow
exceed 3 gal per nominal ton of cooling (3.2 L per kW) for switch, a field-supplied condenser water flow switch
temperature stability and accuracy in normal air condition- must be installed.
ing applications. For example, a 30HXC096 with a nomi- 2. The chiller must control both the chilled water pump
nal capacity of 94.0 tons would require 282 gal (1067.4 L) and the condenser pump. The cooler pump must
in circulation in the system loop. operate for a minimum of 10 minutes after the chiller
For process jobs where accuracy is vital, or for operation has shut down and the condenser pump must operate
at ambient temperatures below 32 F (0° C) with low unit for a minimum of 30 minutes after the chiller has shut
loading conditions, there should be from 6 to 10 gal per down. In the event of a loss of condenser water flow,
ton (6.5 to 10.8 L per kW). To achieve this volume, it is the flow of chilled fluid to the evaporator must be
often necessary to install a tank in the loop. Tank should be stopped or the isolation valve must be closed. This is
baffled to ensure there is no stratification, and that water necessary to reduce the possibility of condenser
(or brine) entering the tank is adequately mixed with liquid freeze-up.
in the tank. See Tank Installation drawing.

24
 3. Condenser head pressure control valves must not air back into a condenser can increase condensing
reduce condenser flow below 0.75 gallons per ton temperatures and may significantly reduce capacity
(0.4 L/s per kW) or the lowest detectable flow level of and efficiency. Unit shut down may occur if condens-
the condenser water flow switch. For further informa- ing temperatures exceed the maximum set point.
tion, refer to the 30HX Installation Instructions or Airflow patterns are complex and beyond the scope
contact your Carrier representative. of equipment manufacturer prediction. Consultation
with a specialist may be required in some
30HXA remote condenser requirements applications.
1. Do not manifold independent refrigerant circuits into
14. Units with vertical fan discharge should be located no
a single condenser circuit. closer than the width of the unit to an obstruction
2. Ensure each refrigerant circuit has its own head pres- such as a wall or another unit. Minimum clearances
sure control. for airflow and service are indicated on the equipment
3. Condensing pressure control must be provided on drawings and should be increased as necessary to pre-
condensers used with 30HXA to maintain a minimum vent air recirculation when obstructions exist or multi-
75 F (24 C) saturated discharge temperature at light ple units are applied.
loads. Refrigerant pipe sizing for 30HXA with 09D con-
4. Condenser must provide 15° F (8.3° C) subcooling, a denser combinations — For refrigerant pipe sizing of
maximum of 40° F (22.2° C) difference between satu- the 30HXA follow these directions:
rated condensing temperature and outdoor ambient Discharge line:
temperature (to prevent overload at high ambient 1. For applications at conditions of 40 F (4.4 C) or
temperatures), and a minimum of 20° F (11.1° C)
higher, use the Refrigerant Line Sizes for 30HXA
difference (to assure subcooling). Chiller/Remote Condenser Combinations tables on
5. Minimum saturated discharge temperature (SDT) is pages 26 and 27.
90 F (32.2 C). Maximum SDT is 145 F (62.8 C) at
For applications using brine, other condensers, or
full load. LWT below 40 F (4.4 C), size lines using the
6. Condenser should not be located more than 15 ft ASHRAE Refrigeration Handbook, or other suitable
(4.6 m) below chiller to maintain subcooling. design guide.
7. Design discharge and liquid piping according to the 2. Install horizontal lines level or pitched slightly toward
System Design Manual and Refrigerant Piping Design the base of discharge riser and the condenser (in the
Program. Piping must be sized for HFC-134a refrig- direction of flow).
erant. Refer to the ASHRAE Refrigeration Handbook 3. If chiller is below the condenser, loop the discharge
for R-134a refrigerant sizing tables. Also see 30HX
line to at least one inch (25.4 mm) above the top of
Installation Instructions and the Typical 30HXA condenser.
Refrigerant Piping to Remote Condenser diagrams
on page 33. 4. A double discharge riser (as shown in Refrigerant
Line Sizes for 30HXA Chiller/Remote Condenser
8. For proper electronic expansion valve (EXV) opera- Combinations, Double Discharge Riser Pipe Sizes
tion, discharge line losses should not exceed 4° F table on page 27) is required if any of the following
( – 15.6° C) at full load. A calculation of line loss
conditions exist:
should be performed prior to installation.
a. Unit is equipped with minimum load control.
9. Maximum interconnecting refrigerant line length is
200 ft (61 m) actual. b. Chiller is located below condenser.
10. Liquid line solenoid valves are required. 5. Minimize line length and restrictions to minimize pres-
sure drop and refrigerant charge.
11. If accessory sound enclosure is installed, run lines
along the floor so the sound enclosure can be notched 6. If accessory sound enclosure is applied, run lines
to clear lines. along the floor so sound enclosure may be notched to
clear lines.
12. Locate equipment on a level surface in an area having
unobstructed air circulation. Proper flow of fresh air 7. Lines should not be buried underground.
to the condenser is essential for unit operation and 8. Snow and ice on hot discharge gas piping can serve
performance. Care should be taken to keep the area as a heat sink. Refrigerant piping exposed to the out-
around the condensers free of airborne dirt, debris, doors should be protected from snow and ice to pre-
and materials that can restrict airflow or be drawn vent excessive condensation at start-up.
into the equipment, causing damage, clogging, or Liquid line:
blocking of the coil area.
1. For applications at conditions of 40 F (4.4 C) or
13. For multiple units, assure discharge air from one unit higher LWT, use the Refrigerant Line Sizes for
does not become intake air for another. Obstructions 30HXA Chiller/Remote Condenser Combinations
such as screens, walls, roofs, overhangs, landscaping, tables on pages 26 and 27.
etc., located at a site may restrict airflow or cause
For applications using brine, other condensers, or
warm air circulation. Recirculation of warm discharge
LWT below 40 F (4.4 C), size lines using the

25
Application data (cont)
ASHRAE Refrigeration Handbook, or other suitable
LIQUID LINE TO
design guide. FROM
CONDENSER CHILLER
2. If chiller is above condenser, maximum vertical sepa-
STORAGE
ration is 15 ft (4.6 m). RECEIVER
3. Minimize line length and restrictions to minimize pres-
sure drop and refrigerant charge. 7. Filter driers (field supplied) are required indoors near
chiller.
4. Field-supplied liquid line solenoid valves are required.
The solenoid valves must be located close to the Relief valve vent lines
chiller. 1. Vent per local code requirements.
5. If sound enclosure is applied, run lines along floor so 2. Each chiller has a minimum of 4 refrigerant relief
sound enclosure may be notched to clear lines. valves: 2 on the cooler and 2 on the condenser
6. In-line receivers are NOT recommended due to their (30HXC) or oil separator (30HXA). Units with
negative effect on system subcooling. Where the use factory-installed suction service valves also have one
of a receiver is desired for service purposes, the relief valve on each compressor discharge line. See
receiver should be piped in parallel with the main liq- Dimensions section on pages 12-19 for specific
uid line and equipped with shut-off valves to isolate it locations.
during unit operation. See the following storage 3. If sound enclosure is applied, run lines along floor so
receiver figure. sound enclosure may be notched to clear lines.

REFRIGERANT LINE SIZES FOR 30HXA CHILLER/REMOTE CONDENSER COMBINATIONS

RECOMMENDED REFRIGERANT PIPE SIZES (in. OD)

TOTAL LENGTH OF INTERCONNECTING PIPING — FT (M)

30HXA UNIT SIZE CKT 0-50 (0-15) 50-100 (15-30) 100-200 (30-60)
Liquid Line* Discharge Line† Liquid Line* Discharge Line† Liquid Line* Discharge Line†
A 11/8 21/8 11/8 21/8 13/8 21/8
076 B 11/8 21/8 11/8 21/8 13/8 21/8
A 11/8 21/8 13/8 21/8 13/8 21/8
086
B 11/8 21/8 11/8 21/8 13/8 21/8
A 11/8 21/8 13/8 21/8 15/8 25/8
096
B 11/8 21/8 11/8 21/8 13/8 21/8
A 13/8 21/8 13/8 25/8 15/8 25/8
106
B 11/8 21/8 11/8 21/8 13/8 21/8
A 13/8 21/8 13/8 25/8 15/8 25/8
116 B 13/8 21/8 13/8 21/8 13/8 21/8
A 13/8 21/8 13/8 25/8 15/8 25/8
126
B 13/8 21/8 13/8 21/8 15/8 25/8
A 13/8 25/8 15/8 25/8 15/8 31/8
136
B 13/8 21/8 13/8 21/8 15/8 25/8
A 13/8 25/8 15/8 25/8 15/8 31/8
146
B 13/8 21/8 13/8 25/8 15/8 25/8
A 13/8 25/8 15/8 25/8 21/8 31/8
161
B 13/8 21/8 13/8 25/8 15/8 25/8
A 13/8 25/8 15/8 25/8 15/8 31/8
171
B 13/8 25/8 15/8 25/8 21/8 31/8
A 13/8 25/8 15/8 25/8 21/8 31/8
186
B 13/8 25/8 15/8 25/8 21/8 31/8
A 15/8 25/8 15/8 31/8 25/8 31/8
206 B 13/8 25/8 15/8 25/8 21/8 31/8
246 A 21/8 31/8 25/8 31/8 25/8 31/8
B 13/8 25/8 15/8 25/8 25/8 31/8
A 21/8 31/8 25/8 31/8 25/8 31/8
261
B 13/8 25/8 15/8 25/8 21/8 31/8
A 21/8 31/8 25/8 31/8 25/8 31/8
271
B 13/8 25/8 15/8 25/8 21/8 31/8
LEGEND 3. Refrigerant and Double Discharge Riser Pipe Sizes tables are based
OD — Outside Diameter on cooler leaving water temperatures of 40 F (4.4 C) or above.
4. Pipe diameter calculation is based on actual line length plus a 50%
*Field-supplied liquid line solenoid valve is required. allowance for fittings.
†Double discharge riser is required on ALL units which have minimum load 5. For proper electronic expansion valve (EXV) operation, discharge line
control installed. See Double Discharge Riser Pipe Sizes table on page 27. losses should not exceed 4° F (-15.6° C) at full load. A calculation of
line loss should be performed prior to installation.
NOTES:
1. Refrigerant and Double Discharge Riser Pipe Sizes tables are based
on equal chiller and 09DK condenser sizes — i.e., 30HXA096 with
09DK094.
2. For other system combinations, size lines per ASHRAE (American
Society of Heating, Refrigerating, and Air Conditioning Engineers) or
other R-134a line sizing guides such as the System Design Manual,
Part 3, or the E20-II® Software Refrigerant Piping program, for proper
piping sizes and design.

26
 REFRIGERANT LINE SIZES FOR 30HXA CHILLER/REMOTE CONDENSER COMBINATIONS (cont)
DOUBLE DISCHARGE RISER PIPE SIZES (in. OD)

RISER ‘‘A’’ RISER ‘‘B’’

30HXA UNIT SIZE CKT Total Length of Interconnecting Piping — FT (M)*
0-200 (0-60) 0-50 (0-15) 50-100 (15-30) 100-200 (30-60)
A 1 1 /8 1 5 /8 1 5 /8 1 5 /8
076
B 1 1 /8 1 5 /8 1 5 /8 1 5 /8
A 1 1 /8 5
1 /8 1 5 /8 1 5 /8
086 B 1 1 /8 1 5 /8 1 5 /8 1 5 /8
096 A 1 1 /8 1 5 /8 1 5 /8 2 1 /8
B 1 1 /8 1 5 /8 1 5 /8 1 5 /8
A 1 5 /8 1 5 /8 2 1 /8 2 1 /8
106
B 1 3 /8 1 3 /8 1 3 /8 1 3 /8
A 1 5 /8 1 5 /8 2 1 /8 2 1 /8
116
B 1 3 /8 1 5 /8 1 5 /8 1 5 /8
A 1 5 /8 1
2 /8 2 1 /8 2 1 /8
126 B 1 3 /8 1 5 /8 1 5 /8 2 1 /8
136 A 1 5 /8 2 1 /8 2 1 /8 2 5 /8
B 1 3 /8 1 5 /8 1 5 /8 2 1 /8
A 1 5 /8 2 1 /8 2 1 /8 2 5 /8
146
B 1 5 /8 1 5 /8 2 1 /8 2 1 /8
A 1 5 /8 2 1 /8 2 1 /8 2 5 /8
161 B 1 5 /8 1 5 /8 2 1 /8 2 1 /8
171 A 1 5 /8 1
2 /8 2 1 /8 2 5 /8
B 1 5 /8 2 1 /8 2 1 /8 2 5 /8
A 1 5 /8 2 1 /8 2 1 /8 2 5 /8
186
B 1 5 /8 2 1 /8 2 1 /8 2 5 /8
A 1 5 /8 2 1 /8 2 1 /8 2 5 /8
206 B 1 5 /8 2 1 /8 2 1 /8 2 5 /8
246 A 1 5 /8 2 1 /8 2 1 /8 2 5 /8
B 1 5 /8 2 1 /8 2 1 /8 2 5 /8
A 1 5 /8 1
2 /8 2 1 /8 3 1 /8
261
B 1 5 /8 2 1 /8 2 1 /8 2 5 /8
A 1 5 /8 2 1 /8 3 1 /8 3 1 /8
271 B 1 5 /8 2 1 /8 2 1 /8 2 5 /8
LEGEND
A — Riser Without Trap
B — Riser With Trap DOUBLE DISCHARGE RISER
OD — Outside Diameter CONSTRUCTION DETAIL
*Total Length of Interconnecting Piping refers to actual length, not total
equivalent length.
TO
NOTE: Horizontal line sections should be sized according to the Total CONDENSER
Length of Interconnecting Piping columns on the Recommended
Refrigerant Pipe Sizes table on page 26.
A B

RED.
TEE

FROM
CHILLER

45 DEGREE 90 DEGREE
STR ELLS STR ELLS

LEGEND
RED. TEE — Reducing Tee
STR ELLS — Street Elbows

27
Application data (cont)
For chillers using brine or those matched with other con- Example Calculation of Circuit Capacities:
densers, the lines must be sized manually using design Select (Standard) 30HXA086 Chiller
guides such as ASHRAE, or curves in the 30HXA installa-
From Electronic catalog (E-cat) selection or balance
tion instructions. In many 30HXA sizes, the individual
diagram:
refrigerant circuits have unequal capacities. The Circuit
Cooling Capacity table below lists the percentage capacity Total Unit Capacity = 74 tons (from unit selection at design
of each circuit for line sizing purposes. The Circuit Unload- conditions)
ing Capacity table below indicates the minimum unloading Using the Circuit Cooling Capacity table:
capacities per circuit as well as a sample calculation of the Ckt “A” design capacity = 74 x 0.55 = 40.7 tons
minimum circuit tonnage for riser design. The example
below lists circuit capacity calculations based on the Circuit Using the Circuit Unloading Capacity table:
Cooling and Circuit Unloading Capacity tables. Ckt “A” minimum capacity = 40.7 x 0.40 = 16.3 tons
Ckt “B” design capacity = 74 x 0.45 = 33.3 tons
CIRCUIT COOLING CAPACITY
Ckt “B” minimum capacity = 33.3 x 0.40 = 13.3 tons
PERCENT OF TOTAL UNIT CAPACITY
30HXA UNIT SIZE System refrigerant charge — The 30HXA units are
Circuit A % Circuit B %
shipped from the factory with a small holding charge of
076 50 50
nitrogen. The approximate refrigerant charge required for
086 55 45
starting the 30HXA system is listed in the table on next
096 59 41
page. This initial charge will allow starting of the unit.
106 64 36
Additional refrigerant may be required to accommodate liq-
116 60 40
uid line storage. See the liquid line refrigerant storage
126 55 45
capacity table below for liquid line storage information.
136 59 41
146 55 45
LIQUID LINE REFRIGERANT STORAGE CAPACITY
161 59 41
171 47 53 REFRIGERANT (lb) REFRIGERANT (kg)
186 50 50 PIPING SIZE (in.) PER FT OF TUBING PER M OF TUBING
LENGTH LENGTH
206 54 46
1 1 /8 0.41 0.61
246 61 39
1 3 /8 0.63 0.94
261 63 37
1 5 /8 0.89 1.33
271 64 36
2 1 /8 1.52 2.26
2 5 /8 2.32 3.45
CIRCUIT UNLOADING CAPACITY
MINIMUM CIRCUIT CAPACITY —
PERCENT OF FULL LOAD
30HXA UNIT With Minimum
SIZE Standard Unit
Load Control
Circuit A Circuit B Circuit A Circuit B
076-186 40% 40% 20% 20%
206-271 20% 40% 10% 20%

28
 SYSTEM REFRIGERANT CHARGE FOR START-UP

RECOMMENDED TOTAL
AIR-COOLED COOLER CONDENSER PIPING
REFRIGERANT
REFRIGERANT CHARGE CHARGE REFRIGERANT CHARGE
30HXA CONDENSER TYPE, CHARGE
CIRCUIT PIPE SIZES
SIZE (Qty)*
Lb Kg Lb Kg (in. OD)† Lb Kg Lb Kg
A 48 22 62 28 11/8 10 5 120 55
076 09DK 084 (1)
B 48 22 62 28 11/8 10 5 120 55
A 61 28 62 28 11/8 10 5 133 61
086 09DK 084 (1)
B 52 24 62 28 11/8 10 5 124 57
A 75 34 68 31 11/8 10 5 153 70
096 09DK 094 (1)
B 56 25 68 31 11/8 10 5 134 61
09DK 074 (1) and A 88 40 82 37 13/8 16 7 186 84
09DK 044 (1) B 56 25 62 28 13/8 16 7 134 60
106
A 88 40 24 11 13/8 16 7 128 58
09AZ 102FE (1)
B 56 25 18 8 13/8 16 7 90 40
09DK 074 (1) and A 84 38 82 37 13/8 16 7 182 82
09DK 054 (1) B 61 28 56 25 13/8 16 7 133 60
116
A 84 38 42 19 13/8 16 7 142 64
09AZ 112FE (1)
B 61 28 42 19 13/8 16 7 119 54
A 90 41 82 37 13/8 16 7 188 85
09DK 074 (2)
B 71 32 82 37 13/8 16 7 169 76
126
A 90 41 24 11 13/8 16 7 130 59
09AZ 122FE (1)
B 71 32 24 11 13/8 16 7 112 50
A 99 45 82 37 13/8 16 7 197 89
09DK 074 (2)
B 71 32 82 37 13/8 16 7 169 76
136
A 99 45 57 26 13/8 16 7 172 78
09AZ 132FE (1)
B 71 32 42 19 13/8 16 7 130 58
A 95 43 124 56 13/8 16 7 235 106
09DK 084 (2)
B 80 36 124 56 13/8 16 7 220 99
146
A 95 43 57 26 13/8 16 7 168 76
09AZ 142FE (1)
B 80 36 57 26 13/8 16 7 153 69
A 120 54 124 56 13/8 16 7 260 117
09DK 084 (2)
B 88 40 124 56 13/8 16 7 228 103
161
A 120 54 68 31 13/8 16 7 204 92
09AZ 162FE (1)
B 88 40 68 31 13/8 16 7 172 78
A 95 43 124 56 13/8 16 7 235 106
09DK 084 (2)
B 112 51 124 56 13/8 16 7 252 114
171
A 95 43 68 31 13/8 16 7 179 81
09AZ 172FE (1)
B 112 51 68 31 13/8 16 7 196 89
A 108 49 124 56 13/8 16 7 248 112
09DK 084 (2)
B 108 49 124 56 13/8 16 7 248 112
186
A 108 49 68 31 13/8 16 7 192 87
09AZ 182FE (1)
B 108 49 68 31 13/8 16 7 192 87
09DK 084 (2) and A 160 73 272 123 15/8 22 10 454 206
09DK 094 (1) B 108 49 124 56 13/8 16 7 248 112
206
09AZ 101FA (1) and A 160 73 49 22 15/8 22 10 231 105
09AZ 91FA (1) B 108 49 37 17 13/8 16 7 161 73
A 176 80 272 123 21/8 38 17 486 220
09DK 094 (3)
B 108 49 136 62 13/8 16 7 260 118
246
09AZ 151FA (1) and A 176 80 113 51 21/8 38 17 327 148
09AZ 91FA (1) B 108 49 37 17 13/8 16 7 161 73
A 176 80 272 123 21/8 38 17 486 220
09DK 094 (3)
B 108 49 136 62 13/8 16 7 260 118
261
09AZ 171FA (1) and A 176 80 136 62 21/8 38 17 350 159
09AZ 91FA (1) B 108 49 37 17 13/8 16 7 161 73
A 176 80 272 123 21/8 38 17 486 220
09DK 094 (3)
B 108 49 136 62 13/8 16 7 260 118
271
09AZ 181FA (1) and A 176 80 136 62 21/8 38 17 350 159
09AZ 91FA (1) B 108 49 37 17 13/8 16 7 161 73
*Refer to the electronic catalog for 09AZ/30HX rating data.
†Based on 25 ft (7.6 m) liquid line.
NOTE: Multiply the liquid line length (in feet) by the factor shown on page 28 for the refrigerant/ft of the tubing.
Add base unit charge to liquid line charge to determine approximate refrigerant charge.

29
Selection procedure
The electronic catalog chiller selection program provides 30HXC chillers and 30HXA condenserless chillers with
quick, easy selection of chillers. The program considers air-cooled condensers or 30HXA chillers to be matched
specific temperature and flow requirements and other with other condensers. To select a 30HXC or 30HXA
factors, such as fouling and altitude correction. The elec- chiller, use the electronic catalog or contact your Carrier
tronic catalog can be used to select both water-cooled representative.

30
Performance data
30HXA,HXC STANDARD PASS COOLER PRESSURE DROP

ENGLISH
70.0

60.0 246,271

206
50.0
076,086 096

106 161,171
136,146
PRESSURE DROP (ft wg)

116,126
40.0 186

30.0

20.0

10.0

0.0
100 300 500 700 900 1100
COOLER FLOW RATE (gpm)

NOTES:
1. Ft of water = 2.31 x change in psig.
2. See page 23 for minimum flow rates and the electronic catalog for maximum flow rates.

SI
200.0

180.0
246,271

160.0
206
076,086 096
140.0 161,171
106 136,146
PRESSURE DROP (kPa)

116,126
120.0 186

100.0

80.0

60.0

40.0

20.0

0.0
0 10 20 30 40 50 60 70 80
COOLER FLOW RATE (L/s)

NOTE: See page 23 for minimum flow rates and the electronic catalog for maximum flow rates.

31
Performance data (cont)

30HXC STANDARD PASS CONDENSER PRESSURE DROP

ENGLISH
60.0
161 171,186 206 246,271

136,146
50.0 116,126

40.0 096,106
PRESSURE DROP (ft wg)

076,086

30.0

20.0

10.0

0.0
100 300 500 700 900 1100 1300
CONDENSER FLOW RATE (gpm)

NOTES:
1. Ft of water = 2.31 x change in psig.
2. See page 23 for minimum flow rates and the electronic catalog for maximum flow rates.

SI
200.0

180.0
161 171,186 206 246,271

160.0
136,146
116,126
140.0
PRESSURE DROP (kPa)

120.0 096,106

100.0 076,086

80.0

60.0

40.0

20.0

0.0
0 10 20 30 40 50 60 70 80 90
CONDENSER FLOW RATE (L/s)

NOTE: See page 23 for minimum flow rates and the electronic catalog for maximum flow rates.

32
Typical piping and wiring
TYPICAL 30HXA REFRIGERANT PIPING TO REMOTE CONDENSER (076-096 SIZES SHOWN)
NOTES:
1. Piping shown is for general point-of-connection only and is not intended to show details for a specific installation. Certified field wiring
and dimensional drawings are available upon request. The 30HXA units should be installed using certified drawings.
2. Refer to the System Design Manual for details regarding piping techniques.
3. Refrigerant piping including liquid line solenoid valves, liquid line filter driers, and relief valves are field supplied.
4. Relief valve vent piping per local codes.
5. If unit is equipped with accessory sound enclosure, run lines down to floor and notch bottom of enclosure to clear lines.
6. When the remote condenser is equipped with Motormaster® head pressure control, the 30HXA chiller may be started with outdoor-air
temperature as low as 35 F and may operate at loads equal to or greater than its second stage of capacity with outdoor-air tempera-
tures as low as 0° F.

a30-4644

TYPICAL 30HXA REFRIGERANT PIPING TO REMOTE CONDENSER(S) (206-271 SIZES SHOWN)

NOTES:
1. Piping shown is for general point-of-connection only and is not intended to show details for a specific installation. Certified field wiring
and dimensional drawings are available upon request. The 30HXA units should be installed using certified drawings.
2. Refer to the System Design Manual for details regarding piping techniques.
3. Refrigerant piping including liquid line solenoid valves, liquid line filter driers, and relief valves are field supplied.
4. Relief valve vent piping per local codes.
5. If unit is equipped with accessory sound enclosure, run lines down to floor and notch bottom of enclosure to clear lines.
6. When the remote condenser is equipped with Motormaster head pressure control, the 30HXA chiller may be started with outdoor-air
temperature as low as 35 F and may operate at loads equal to or greater than its second stage of capacity with outdoor-air tempera-
tures as low as 0° F.

a30-4645

33
34
TYPICAL PIPING AND WIRING FOR 30HXA,HXC COOLER AND 30HXC CONDENSER

a30-4652
Typical piping and wiring (cont)

NOTES:
1. Chiller must be installed levelly to maintain proper compressor oil return.
LEGEND 2. Wiring and piping shown are general points-of-connection guides only and are not intended for a specific installation.
Wiring and piping shown are for a quick overview of system and are not in accordance with recognized standards.
Airflow Through Air-Handling Unit 3. All wiring must comply with applicable local and national codes.
4. All piping must follow standard piping techniques. Refer to the System Design Manual or appropriate ASHRAE (Ameri-
Power Wiring can Society of Heating, Refrigeration, and Air Conditioning Engineers) handbook for details.
5. See Application Data section on page 24 for minimum cooler loop volume. This system may require the addition of a
Chilled Fluid Piping holding tank to ensure adequate volume.
ST — Starter
FD — Field-Supplied Disconnect
 POWER AND CONTROL WIRING

SEE
NOTE 12

SEE
NOTE 12

LEGEND
A — Alarm CWPI — Chilled Water Pump Interlock OAT — Outdoor Air Temperature
CFR — Condenser Fan Relay EMM — Energy Management Module SPT — Space Temperature
CNFS — Condenser Flow Switch EWT — Entering Water Temperature TB — Terminal Block
CNPI — Condenser Pump Interlock FIOP — Factory-Installed Option Factory Installed Wiring
Typical control wiring schematic

CNPR — Condenser Water Pump LLSV — Liquid Line Solenoid Valve Field Control Wiring
CWFS — Chilled Water Flow Switch LWT — Leaving Water Temperature Field Power Wiring
CWP — Chilled Water Pump NEC — National Electrical Code

NOTES:
1. Factory wiring is in accordance with National Electrical Code (NEC). Field modifications or additions must be in compliance with all
applicable codes.
2. Wiring for main field supply must be rated 75 C minimum. Use copper for all units. Maximum incoming wire size for each terminal
block is 500 kcmil.
3. Power for control circuit should be supplied from a separate source (except 380/415v units) through a field-supplied disconnect with
15A maximum protection for 115v control circuits and 15A maximum protection for 230v control circuit. Connect control circuit power
to terminals 1 and 2 of TB4. Control circuit conductors for all units must be copper only. Control circuit power is factory wired for 380/
415v units.
4. Terminals 13 and 14 TB5 are for field external connection for remote on-off. The contacts must be rated for dry circuit application
capable of handling a 24vac load up to 50mA.
5. Terminals 1 and 2 of TB5 are for chilled water pump interlock (CWPI) functions. If added, chilled water pump interlock contacts must
be wired in series with flow contacts. The contacts must be rated for dry circuit application capable of handling a 24vac load up to
50mA. Chilled water flow switch (CWFS) is factory installed.
6. Terminals 10 and 12 of TB5 are for control of the chilled water pump starter. The maximum load allowed for the chilled water pump
a30-4650

relay is 75va sealed, 360va inrush at 115v or 230v. Separate field power supply is not required.
7. Terminals 11 and 12 of TB5 are for alarm relay. The maximum load allowed for the alarm relay is 75va sealed, 360va inrush at 115v
or 230v. Separate field power supply is not required.
8. Terminals 7 and 9 of TB2 are for condenser water pump (HXC) or circuit A condenser fan contactor (HXA only). Terminals 8 and 9
of TB2 are for circuit B contactor (HXA only) or liquid line solenoid valves (factory-wired 30HXC brine). The maximum load allowed
is 75va sealed, 360va inrush at 115v or 230v. Separate field power supply is not required. Liquid line solenoid valves (30HXA only)
must be connected in parallel fan contactors as shown.
9. Terminals 5 and 6 of TB2 are for condenser flow switch (CNFS) and/or condenser pump interlock (CNPI). The contacts must be
rated for dry circuit application capable of handling a 24vac load up to 50mA.
10. Make appropriate connections to TB6 as shown for energy management board options. The contacts for demand limit and ice done
options must be rated for dry circuit application capable of handling a 24vac load up to 50mA.
11. TB1B supplied on 30HXA186 208/230v Y-Delta, 30HXA206-271 208/230, 230v Y-Delta and by special order.
12. 500 kcmil if minimum circuit amps (MCA)  200A, 300 kcmil if MCA  200A.

35
Electrical data
ELECTRICAL DATA, 30HXC UNITS
UNIT VOLTAGE UNIT VOLTAGE CONTROL CIRCUIT
UNIT POWER NO. POWER
Supplied SUPPLY SUPPLY ICF Rec Fuse Size V-Hz Supplied MCA and
30HXC V-Hz MCA MOCP (Single
(3 Ph) Min Max QTY. REQD. CONDUCTORS XL WD XL WD Min Max MOCP
Ph)
230-60 207 253 1 3 198.7 250 — 297.3 — 225 115-60 104 127 15
208/230-60 187 253 1 3 220.7 300 — 307.1 — 250 115-60 104 127 15
460-60 414 506 1 3 99.7 125 374.3 148.3 125 125 115-60 104 127 15
076 575-60 518 633 1 3 79.7 110 299.4 118.4 90 90 115-60 104 127 15
380-60 342 418 1 3 120.8 150 418.7 168.7 150 150 230-60 207 254 15
380/415-50 342 440 1 3 125.6 175 399.8 164.8 150 150 230-50 198 254 15
230-50 207 253 1 3 207.2 250 — 266.1 — 250 230-50 207 254 15
230-60 207 253 1 3 221.7 300 — 297.3 — 250 115-60 104 127 15
208/230-60 187 253 1 3 246.4 350 — 307.1 — 300 115-60 104 127 15
460-60 414 506 1 3 111.3 150 374.3 148.3 125 125 115-60 104 127 15
086 575-60 518 633 1 3 88.9 125 299.4 118.4 100 100 115-60 104 127 15
380-60 342 418 1 3 134.8 175 418.7 168.7 175 175 230-60 207 254 15
380/415-50 342 440 1 3 140.4 200 478.8 189.8 175 175 230-50 198 254 15
230-50 207 253 1 3 231.9 300 — 305.1 — 300 230-50 207 254 15
230-60 207 253 1 3 251.3 350 — 344.3 — 300 115-60 104 127 15
208/230-60 187 253 1 3 279.2 400 — 354.1 — 350 115-60 104 127 15
460-60 414 506 1 3 126.2 175 449.3 172.3 150 150 115-60 104 127 15
096 575-60 518 633 1 3 100.8 150 359.4 137.4 125 125 115-60 104 127 15
380-60 342 418 1 3 152.7 225 501.7 194.7 175 175 230-60 207 254 15
380/415-50 342 440 1 3 157.9 225 561.8 215.8 200 200 230-50 198 254 15
230-50 207 253 1 3 260.7 350 — 347.1 — 300 230-50 207 254 15
230-60 207 253 1 3 285.6 400 — 395.3 — 350 115-60 104 127 15
208/230-60 187 253 1 3 317.4 450 — 405.1 — 400 115-60 104 127 15
460-60 414 506 1 3 143.3 200 529.3 197.3 175 175 115-60 104 127 15
106 575-60 518 633 1 3 114.5 175 423.4 158.4 150 150 115-60 104 127 15
380-60 342 418 1 3 173.6 250 589.7 222.7 200 200 230-60 207 254 15
380/415-50 342 440 1 3 178.1 250 660.8 246.8 225 225 230-50 198 254 15
230-50 207 253 1 3 294.2 450 — 397.1 — 350 230-50 207 254 15
230-60 207 253 1 3 304.1 450 — 413.7 — 350 115-60 104 127 15
208/230-60 187 253 1 3 337.9 500 — 425.6 — 400 115-60 104 127 15
460-60 414 506 1 3 152.6 225 538.6 206.6 175 175 115-60 104 127 15
116 575-60 518 633 1 3 121.9 175 430.8 165.8 150 150 115-60 104 127 15
380-60 342 418 1 3 184.8 250 600.9 233.9 225 225 230-60 207 254 15
380/415-50 342 440 1 3 190.0 250 672.7 258.7 225 225 230-50 198 254 15
230-50 207 253 1 3 313.9 450 — 416.8 — 400 230-50 207 254 15
230-60 207 253 1 3 327.7 450 — 437.4 — 400 115-60 104 127 15
208/230-60 187 253 1 3 364.2 500 — 451.9 — 450 115-60 104 127 15
460-60 414 506 1 3 164.5 225 550.5 218.5 200 200 115-60 104 127 15
126 575-60 518 633 1 3 131.4 175 440.3 175.3 150 150 115-60 104 127 15
380-60 342 418 1 3 199.1 250 615.2 248.2 225 225 230-60 207 254 15
380/415-50 342 440 1 3 204.0 300 686.7 272.7 250 250 230-50 198 254 15
230-50 207 253 1 3 337.0 450 — 439.9 — 400 230-50 207 254 15
230-60 207 253 1 3 366.7 500 — 497.4 — 450 115-60 104 127 15
208/230-60 187 253 1 6 407.4 600 — 511.9 — 500 115-60 104 127 15
460-60 414 506 1 3 183.8 250 645.5 248.5 225 225 115-60 104 127 15
136 575-60 518 633 1 3 147.1 200 536.3 199.3 175 175 115-60 104 127 15
380-60 342 418 1 3 222.8 300 720.2 282.2 300 300 230-60 207 254 15
380/415-50 342 440 1 3 230.2 300 796.7 307.7 300 300 230-50 198 254 15
230-50 207 253 1 6 380.3 500 — 495.9 — 450 230-50 207 254 15
230-60 207 253 1 6 394.1 500 — 524.9 — 450 115-60 104 127 15
208/230-60 187 253 1 6 437.9 600 — 542.4 — 500 115-60 104 127 15
460-60 414 506 1 3 197.5 250 659.2 262.2 225 225 115-60 104 127 15
146 575-60 518 633 1 3 158.1 225 547.3 210.3 200 200 115-60 104 127 15
380-60 342 418 1 3 239.5 350 736.9 298.9 300 300 230-60 207 254 15
380/415-50 342 440 1 3 246.3 350 812.8 323.8 300 300 230-50 198 254 15
230-50 207 253 1 6 407.1 600 — 522.7 — 500 230-50 207 254 15
230-60 207 253 1 6 398.7 600 — 574.8 — 500 115-60 104 127 15
208/230-60 187 253 1 6 443.0 600 — 590.6 — 600 115-60 104 127 15
460-60 414 506 1 3 200.1 300 756.2 287.2 250 250 115-60 104 127 15
161 575-60 518 633 1 3 159.9 225 604.9 229.9 200 200 115-60 104 127 15
380-60 342 418 1 3 242.2 350 843.2 325.2 300 300 230-60 207 254 15
380/415-50 342 440 1 3 249.0 350 944.2 358.2 300 300 230-50 198 254 15
230-50 207 253 1 6 411.3 600 — 577.7 — 500 230-50 207 254 15

36
 ELECTRICAL DATA, 30HXC UNITS (cont)
UNIT VOLTAGE UNIT VOLTAGE CONTROL CIRCUIT
UNIT POWER NO. POWER
Supplied SUPPLY SUPPLY ICF Rec Fuse Size V-Hz Supplied MCA and
30HXC V-Hz MCA MOCP (Single
(3 Ph) Min Max QTY. REQD. CONDUCTORS XL WD XL WD Min Max MOCP
Ph)
230-60 207 253 1 6 428.4 600 — 604.5 — 500 115-60 104 127 15
208/230-60 187 253 1 6 476.0 700 — 623.6 — 600 115-60 104 127 15
460-60 414 506 1 3 215.0 300 771.1 302.1 250 250 115-60 104 127 15
171 575-60 518 633 1 3 171.8 250 616.8 241.8 200 200 115-60 104 127 15
380-60 342 418 1 3 260.2 350 861.2 343.2 300 300 230-60 207 254 15
380/415-50 342 440 1 3 266.6 350 961.8 375.8 300 300 230-50 198 254 15
230-50 207 253 1 6 440.4 600 — 606.8 — 500 230-50 207 254 15
230-60 207 253 1 6 462.3 600 — 638.5 — 600 115-60 104 127 15
208/230-60 187 253 1 6 513.7 700 — 661.3 — 600 115-60 104 127 15
460-60 414 506 1 3 232.0 300 788.1 319.1 300 300 115-60 104 127 15
186 575-60 518 633 1 3 185.4 250 630.4 255.4 225 225 115-60 104 127 15
380-60 342 418 1 3 280.8 400 881.8 363.8 350 350 230-60 207 254 15
380/415-50 342 440 1 3 289.4 400 984.6 398.6 350 350 230-50 198 254 15
230-50 207 253 1 6 478.1 600 — 644.5 — 600 230-50 207 254 15
230-60 207 253 1 6 524.5 700 — 700.7 — 600 115-60 104 127 15
208/230-60 187 253 1 6 582.8 800 — 730.4 — 700 115-60 104 127 15
460-60 414 506 1 3 263.2 350 819.3 350.3 300 300 115-60 104 127 15
206 575-60 518 633 1 3 210.4 250 655.4 280.4 250 250 115-60 104 127 15
380-60 342 418 1 3 318.6 400 919.6 401.6 350 350 230-60 207 254 15
380/415-50 342 440 1 3 326.8 450 1022.0 436.0 400 400 230-50 198 254 15
230-50 207 253 1 6 539.8 700 — 706.2 — 600 230-50 207 254 15
230-60 207 253 1 6 604.1 800 — 780.3 — 700 115-60 104 127 15
208/230-60 187 253 1 6 671.3 800 — 818.9 — 800 115-60 104 127 15
460-60 414 506 1 3 303.2 400 859.3 390.3 350 350 115-60 104 127 15
246 575-60 518 633 1 3 242.3 300 687.3 312.3 300 300 115-60 104 127 15
380-60 342 418 1 3 367.0 450 968.0 450.0 400 400 230-60 207 254 15
380/415-50 342 440 1 3 377.6 500 1072.8 486.8 450 450 230-50 198 254 15
230-50 207 253 1 6 623.8 800 — 790.2 — 700 230-50 207 254 15
230-60 207 253 1 6 633.8 800 — 810.0 — 700 115-60 104 127 15
208/230-60 187 253 1 6 704.3 800 — 851.9 — 800 115-60 104 127 15
460-60 414 506 1 3 318.1 400 874.2 405.2 350 350 115-60 104 127 15
261 575-60 518 633 1 3 254.2 300 699.2 324.2 300 300 115-60 104 127 15
380-60 342 418 1 6 385.0 500 986.0 468.0 450 450 230-60 207 254 15
380/415-50 342 440 1 6 395.2 500 1090.4 504.4 450 450 230-50 198 254 15
230-50 207 253 1 6 652.9 800 — 819.3 — 800 230-50 207 254 15
230-60 207 253 1 6 667.8 800 — 843.9 — 800 115-60 104 127 15
208/230-60 187 253 1 6 742.0 800 — 889.6 — 800 115-60 104 127 15
460-60 414 506 1 3 335.1 400 891.2 422.2 400 400 115-60 104 127 15
271 575-60 518 633 1 3 267.8 350 712.8 337.8 300 300 115-60 104 127 15
380-60 342 418 1 6 405.6 500 1006.6 488.6 450 450 230-60 207 254 15
380/415-50 342 440 1 6 418.0 500 1113.2 527.2 500 500 230-50 198 254 15
230-50 207 253 1 6 690.6 800 — 857.0 — 800 230-50 207 254 15
LEGEND 3. Maximum incoming wire size for each terminal block is 500 kcmil.
ICF — Maximum Instantaneous Current Flow during start-up (the 4. Maximum allowable phase imbalance is: voltage, 2%; amps, 5%.
point in the starting sequence where the sum of the LRA for 5. Use copper conductors only.
the start-up compressor, plus the total RLA for all running 6. The MOCP is calculated as follows:
compressors is at a maximum) MOCP = (2.25) (largest RLA) + the sum of the other RLAs. Size the fuse
LRA — Locked Rotor Amps one size down from the result. The RLAs are listed on the nameplate.
MCA — Minimum Circuit Ampacity (for wire sizing)
MOCP — Maximum Overcurrent Protection The recommended fuse size in amps (RFA) is calculated as follows:
RLA — Rated Load Amps RFA = (1.50) (largest RLA) + the sum of the other RLAs. Size the fuse
WD — Wye-Delta Start one size up from the result. The RLAs are listed on the nameplate.
XL — Across-the-Line Start
MCA = (1.5) (largest RLA) + the sum of the other RLAs. Size the wires
NOTES: one size up from the result.
1. Each main power source must be supplied from a field-supplied fused
electrical service with a (factory-installed or field-installed) disconnect
located in sight from the unit.
2. Control circuit power must be supplied from a separate source through a
field-supplied disconnect (except for 380/415-50 units). An accessory
control transformer may be used to provide control circuit power from the
main unit power supply.

ETL_listed_C_US-tif

37
Electrical data (cont)
ELECTRICAL DATA, 30HXA UNITS

UNIT VOLTAGE UNIT VOLTAGE CONTROL CIRCUIT

UNIT POWER NO. POWER
Supplied SUPPLY SUPPLY ICF Rec Fuse Size V-Hz Supplied MCA and
30HXA V-Hz MCA MOCP (Single
(3 Ph) Min Max QTY. REQD. CONDUCTORS XL WD XL WD Min Max MOCP
Ph)
230-60 207 253 1 3 291.2 400 — 436.4 — 350 115-60 104 127 15
208/230-60 187 253 1 3 323.6 450 — 450.8 — 400 115-60 104 127 15
460-60 414 506 1 3 146.0 200 549.9 217.9 175 175 115-60 104 127 15
076 575-60 518 633 1 3 116.8 150 439.9 174.9 150 150 115-60 104 127 15
380-60 342 418 1 3 177.1 250 614.7 247.7 200 200 230-60 207 254 15
380/415-50 342 440 1 3 183.4 250 686.5 272.5 225 225 230-50 198 254 15
230-50 207 253 1 3 303.3 400 — 439.8 — 350 230-50 207 254 15
230-60 207 253 1 3 322.8 450 — 496.4 — 400 115-60 104 127 15
208/230-60 187 253 1 3 358.7 500 — 510.8 — 450 115-60 104 127 15
460-60 414 506 1 3 161.9 225 644.9 247.9 200 200 115-60 104 127 15
086 575-60 518 633 1 3 129.5 175 535.9 198.9 150 150 115-60 104 127 15
380-60 342 418 1 3 196.2 250 719.7 281.7 225 225 230-60 207 254 15
380/415-50 342 440 1 3 205.5 300 796.5 307.5 250 250 230-50 198 254 15
230-50 207 253 1 3 339.7 500 — 495.8 — 400 230-50 207 254 15
230-60 207 253 1 3 365.4 500 — 562.4 — 450 115-60 104 127 15
208/230-60 187 253 1 6 406.1 600 — 576.8 — 500 115-60 104 127 15
460-60 414 506 1 3 183.4 250 749.9 280.9 225 225 115-60 104 127 15
096 575-60 518 633 1 3 146.5 200 599.9 224.9 175 175 115-60 104 127 15
380-60 342 418 1 3 222.1 300 835.7 317.7 300 300 230-60 207 254 15
380/415-50 342 440 1 3 231.4 350 937.5 351.5 300 300 230-50 198 254 15
230-50 207 253 1 6 382.6 500 — 566.8 — 450 230-50 207 254 15
230-60 207 253 1 6 416.9 600 — 647.4 — 500 115-60 104 127 15
208/230-60 187 253 1 6 463.2 700 — 661.8 — 600 115-60 104 127 15
460-60 414 506 1 3 209.2 300 884.9 323.9 250 250 115-60 104 127 15
106 575-60 518 633 1 3 167.2 250 707.9 258.9 200 200 115-60 104 127 15
380-60 342 418 1 3 253.3 350 984.7 364.7 300 300 230-60 207 254 15
380/415-50 342 440 1 3 263.3 400 1041.5 384.5 300 300 230-50 198 254 15
230-50 207 253 1 6 435.1 600 — 619.8 — 500 230-50 207 254 15
230-60 207 253 1 6 442.1 600 — 672.7 — 500 115-60 104 127 15
208/230-60 187 253 1 6 491.3 700 — 689.9 — 600 115-60 104 127 15
460-60 414 506 1 3 221.9 300 897.6 336.6 300 300 115-60 104 127 15
116 575-60 518 633 1 3 177.4 250 718.1 269.1 225 225 115-60 104 127 15
380-60 342 418 1 3 268.6 400 1000.0 380.0 350 350 230-60 207 254 15
380/415-50 342 440 1 3 281.0 400 1059.2 402.2 350 350 230-50 198 254 15
230-50 207 253 1 6 464.2 700 — 648.9 — 600 230-50 207 254 15
230-60 207 253 1 6 476.3 700 — 706.8 — 600 115-60 104 127 15
208/230-60 187 253 1 6 529.2 700 — 727.8 — 600 115-60 104 127 15
460-60 414 506 1 3 239.1 350 914.8 353.8 300 300 115-60 104 127 15
126 575-60 518 633 1 3 191.0 250 731.7 282.7 225 225 115-60 104 127 15
380-60 342 418 1 3 289.3 400 1020.7 400.7 350 350 230-60 207 254 15
380/415-50 342 440 1 3 301.7 400 1079.9 422.9 350 350 230-50 198 254 15
230-50 207 253 1 6 498.5 700 — 683.2 — 600 230-50 207 254 15
230-60 207 253 1 6 539.1 800 — 769.8 — 700 115-60 104 127 15
208/230-60 187 253 1 6 599.1 800 — 790.8 — 700 115-60 104 127 15
460-60 414 506 1 3 270.7 400 1014.8 385.8 350 350 115-60 104 127 15
136 575-60 518 633 1 3 216.2 300 811.7 308.7 250 250 115-60 104 127 15
380-60 342 418 1 3 327.5 450 1131.7 435.7 400 400 230-60 207 254 15
380/415-50 342 440 1 3 343.4 500 1345.9 506.9 400 400 230-50 198 254 15
230-50 207 253 1 6 567.3 800 — 817.2 — 700 230-50 207 254 15
230-60 207 253 1 6 580.3 800 — 811.0 — 700 115-60 104 127 15
208/230-60 187 253 1 6 644.8 800 — 836.5 — 800 115-60 104 127 15
460-60 414 506 1 3 291.3 400 1035.4 406.4 350 350 115-60 104 127 15
146 575-60 518 633 1 3 232.7 300 828.2 325.2 300 300 115-60 104 127 15
380-60 342 418 1 3 352.5 500 1156.7 460.7 400 400 230-60 207 254 15
380/415-50 342 440 1 3 368.9 500 1371.4 532.4 450 450 230-50 198 254 15
230-50 207 253 1 6 609.3 800 — 859.2 — 700 230-50 207 254 15
230-60 207 253 1 6 605.6 800 — 955.3 — 700 115-60 104 127 15
208/230-60 187 253 1 6 672.9 1000 — 978.9 — 800 115-60 104 127 15
460-60 414 506 1 3 304.0 450 1281.6 477.6 350 350 115-60 104 127 15
161 575-60 518 633 1 3 242.9 350 1025.1 382.1 300 300 115-60 104 127 15
380-60 342 418 1 3 368.0 500 1428.0 539.0 450 450 230-60 207 254 15
380/415-50 342 440 1 6 384.9 500 1398.4 533.4 450 450 230-50 198 254 15
230-50 207 253 1 6 635.7 800 — 858.3 — 800 230-50 207 254 15
230-60 207 253 1 6 651.5 800 — 1001.2 — 800 115-60 104 127 15
208/230-60 187 253 1 6 723.9 1000 — 1029.9 — 1000 115-60 104 127 15
460-60 414 506 1 3 327.0 450 1304.6 500.6 400 400 115-60 104 127 15
171 575-60 518 633 1 3 261.4 350 1043.6 400.6 300 300 115-60 104 127 15
380-60 342 418 1 6 395.9 500 1455.9 566.9 450 450 230-60 207 254 15
380/415-50 342 440 1 6 413.2 600 1426.7 561.7 500 500 230-50 198 254 15
230-50 207 253 1 6 682.6 1000 — 905.2 — 800 230-50 207 254 15

ETL_listed_C_US-tif

38
 ELECTRICAL DATA, 30HXA UNITS (cont)

UNIT VOLTAGE UNIT VOLTAGE CONTROL CIRCUIT

POWER NO. POWER
UNIT Supplied ICF Rec Fuse Size V-Hz Supplied MCA and
30HXA V-Hz SUPPLY SUPPLY
QTY. REQD. CONDUCTORS MCA MOCP (Single
(3 Ph) Min Max XL WD XL WD Min Max MOCP
Ph)
230-60 207 253 1 6 707.9 1000 — 1057.6 — 800 115-60 104 127 15
208/230-60 115-60 104 127 15
Ckt A 187 253 1 6 437.0 700 — 743.0 — 600
Ckt B 187 253 1 6 437.0 700 — 743.0 — 600
186 460-60 414 506 1 3 355.3 500 1332.9 528.9 400 400 115-60 104 127 15
575-60 518 633 1 3 284.0 400 1066.2 423.2 350 350 115-60 104 127 15
380-60 342 418 1 6 430.2 600 1490.2 601.2 500 500 230-60 207 254 15
380/415-50 342 440 1 6 452.7 600 1466.2 601.2 600 600 230-50 198 254 15
230-50 207 253 1 6 747.7 1000 — 970.3 — 1000 230-50 207 254 15
230-60 115-60 104 127 15
Ckt A 207 253 1 6 468.6 700.0 — 726.8 — 600
Ckt B 207 253 1 3 379.8 600.0 — 743.0 — 500
208/230-60 115-60 104 127 15
Ckt A 187 253 1 6 520.6 800.0 — 743.0 — 600
Ckt B 187 253 1 6 422.0 700.0 — 743.0 — 600
206 460-60 414 506 1 6 400.1 500.0 1377.7 573.7 450 450 115-60 104 127 15
575-60 518 633 1 3 319.9 400.0 1102.1 459.1 400 400 115-60 104 127 15
380-60 342 418 1 6 484.4 600.0 1544.4 655.4 600 600 230-60 207 254 15
380/415-50 342 440 1 6 505.2 700.0 1518.7 653.7 600 600 230-50 198 254 15
230-50 230-50 207 254 15
Ckt A 207 253 1 6 486.0 700.0 — 771.0 — 600
Ckt B 207 253 1 6 415.4 700.0 — 638.0 — 500
230-60 115-60 104 127 15
Ckt A 207 253 1 6 592.1 800.0 — 955.3 — 700
Ckt B 207 253 1 3 379.8 600.0 — 743.0 — 500
208/230-60 115-60 104 127 15
Ckt A 187 253 1 6 657.9 800.0 — 978.9 — 800
Ckt B 187 253 1 6 422.0 700.0 — 743.0 — 600
246 460-60 414 506 1 6 461.9 600.0 1439.5 635.5 600 600 115-60 104 127 15
575-60 518 633 1 3 369.1 450.0 1151.3 508.3 450 450 115-60 104 127 15
380-60 342 418 1 6 559.2 700.0 1619.2 730.2 700 700 230-60 207 254 15
380/415-50 342 440 1 6 586.1 700.0 1599.6 734.6 700 700 230-50 198 254 15
230-50 230-50 207 254 15
Ckt A 207 253 1 6 635.7 800.0 — 858.3 — 800
Ckt B 207 253 1 6 415.4 700.0 — 638.0 — 500
230-60 115-60 104 127 15
Ckt A 207 253 1 6 638.0 800.0 — 1001.2 — 800
Ckt B 207 253 1 3 379.8 600.0 — 743.0 — 500
208/230-60
Ckt A 187 253 1 6 708.9 1000.0 — 1029.9 — 800 115-60 104 127 15
Ckt B 187 253 1 6 422.0 700.0 — 743.0 — 600
261 460-60 414 506 1 6 484.9 600.0 1462.5 658.5 600 600 115-60 104 127 15
575-60 518 633 1 6 387.6 500.0 1169.8 526.8 450 450 115-60 104 127 15
380-60 342 418 1 6 587.1 700.0 1647.1 758.1 700 700 230-60 207 254 15
380/415-50 342 440 1 6 614.4 800.0 1627.9 762.9 700 700 230-50 198 254 15
230-50 230-50 207 254 15
Ckt A 207 253 1 6 682.6 1000.0 — 905.2 — 800
Ckt B 207 253 1 6 415.4 700.0 — 638.0 — 500
230-60 115-60 104 127 15
Ckt A 207 253 1 6 683.6 800.0 — 1046.8 — 800
Ckt B 207 253 1 3 379.8 600.0 — 743.0 — 500
208/230-60
Ckt A 187 253 1 6 759.6 1000.0 — 1080.6 — 1000 115-60 104 127 15
Ckt B 187 253 1 6 422.0 700.0 — 743.0 — 600
271 460-60 414 506 1 6 513.2 600.0 1490.8 686.8 600 600 115-60 104 127 15
575-60 518 633 1 6 410.2 500.0 1192.4 549.4 450 450 115-60 104 127 15
380-60 342 418 1 6 621.4 800.0 1681.4 792.4 700 700 230-60 207 254 15
380/415-50 342 440 1 6 653.9 800.0 1667.4 802.4 800 800 230-50 198 254 15
230-50 230-50 207 254 15
Ckt A 207 253 1 6 747.7 1000.0 — 970.3 — 1000
Ckt B 207 253 1 6 415.4 700.0 — 638.0 — 500
LEGEND 3. Maximum incoming wire size for each terminal block is 500 kcmil.
ICF — Maximum Instantaneous Current Flow during start-up (the 4. Maximum allowable phase imbalance is: voltage, 2%; amps, 5%.
point in the starting sequence where the sum of the LRA for 5. Use copper conductors only.
the start-up compressor, plus the total RLA for all running 6. The MOCP is calculated as follows:
compressors is at a maximum) MOCP = (2.25) (largest RLA) + the sum of the other RLAs. Size the fuse
LRA — Locked Rotor Amps one size down from the result. The RLAs are listed on the nameplate.
MCA — Minimum Circuit Ampacity (for wire sizing) The recommended fuse size in amps (RFA) is calculated as follows:
MOCP — Maximum Overcurrent Protection RFA = (1.50) (largest RLA) + the sum of the other RLAs. Size the fuse
RLA — Rated Load Amps one size up from the result. The RLAs are listed on the nameplate.
WD — Wye-Delta Start MCA = (1.5) (largest RLA) + the sum of the other RLAs. Size the wires
XL — Across-the-Line Start one size up from the result.
NOTES:
1. Each main power source must be supplied from a field-supplied fused
electrical service with a (factory-installed or field-installed) disconnect
located in sight from the unit.
2. Control circuit power must be supplied from a separate source through a
field-supplied disconnect (except for 380/415-50 units). An accessory
control transformer may be used to provide control circuit power from the
main unit power supply.

39
Electrical data (cont)
COMPRESSOR ELECTRICAL DATA, 30HXC UNITS

NAMEPLATE COMPRESSOR NUMBERS

UNIT SIZE 30HXC V-Hz A1 B1
(3 Phase) RLA LRA RLA LRA
208/230-60 * * * *
230-60 * * * *
460-60 44.3 330 44.3 330
076-XL 575-60 35.4 264 35.4 264
380-60 53.7 365 53.7 365
230-50 * * * *
380/415-50 55.8 344 55.8 344
208/230-60 98.1 209 98.1 209
230-60 88.3 209 88.3 209
460-60 44.3 104 44.3 104
076-WD 575-60 35.4 83 35.4 83
380-60 53.7 115 53.7 115
230-50 92.1 174 92.1 174
380/415-50 55.8 109 55.8 109
208/230-60 * * * *
230-60 * * * *
460-60 53.6 330 44.3 330
086-XL 575-60 42.8 264 35.4 264
380-60 64.9 365 53.7 365
230-50 * * * *
380/415-50 67.7 423 55.8 344
208/230-60 118.6 209 98.1 209
230-60 106.7 209 88.3 209
460-60 53.6 104 44.3 104
086-WD 575-60 42.8 83 35.4 83
380-60 64.9 115 53.7 115
230-50 111.8 213 92.1 174
380/415-50 67.7 134 55.8 109
208/230-60 * * * *
230-60 * * * *
460-60 65.5 405 44.3 330
096-XL 575-60 52.3 324 35.4 264
380-60 79.2 448 53.7 365
230-50 * * * *
380/415-50 81.7 506 55.8 344
208/230-60 144.9 256 98.1 209
230-60 130.4 256 88.3 209
460-60 65.5 128 44.3 104
096-WD 575-60 52.3 102 35.4 83
380-60 79.2 141 53.7 115
230-50 134.9 255 92.1 174
380/415-50 81.7 160 55.8 109
208/230-60 * * * *
230-60 * * * *
460-60 79.2 485 44.3 330
106-XL 575-60 63.3 388 35.4 264
380-60 95.9 536 53.7 365
230-50 * * * *
380/415-50 97.8 605 55.8 344
208/230-60 175.4 307 98.1 209
230-60 157.9 307 88.3 209
460-60 79.2 153 44.3 104
106-WD 575-60 63.3 123 35.4 83
380-60 95.9 169 53.7 115
230-50 161.7 305 92.1 174
380/415-50 97.8 191 55.8 109
LEGEND
LRA — Locked Rotor Amps
RLA — Rated Load Amps
WD — Wye-Delta Start
XL — Across-the-Line Start
*Units are shipped with wye-delta start as standard. Across-the-line start is not available.

40
 COMPRESSOR ELECTRICAL DATA, 30HXC UNITS (cont)

NAMEPLATE COMPRESSOR NUMBERS

UNIT SIZE 30HXC V-Hz A1 B1
(3 Phase) RLA LRA RLA LRA
208/230-60 * * * *
230-60 * * * *
460-60 79.2 485 53.6 330
116-XL 575-60 63.3 388 42.8 264
380-60 95.9 536 64.9 365
230-50 * * * *
380/415-50 97.8 605 67.7 423
208/230-60 175.4 307 118.6 209
230-60 157.9 307 106.7 209
460-60 79.2 153 53.6 104
116-WD 575-60 63.3 123 42.8 83
380-60 95.9 169 64.9 115
230-50 161.7 305 111.8 213
380/415-50 97.8 191 67.7 134
208/230-60 * * * *
230-60 * * * *
460-60 79.2 485 65.5 405
126-XL 575-60 63.3 388 52.3 324
380-60 95.9 536 79.2 448
230-50 * * * *
380/415-50 97.8 605 81.7 506
208/230-60 175.4 307 144.9 256
230-60 157.9 307 130.4 256
460-60 79.2 153 65.5 128
126-WD 575-60 63.3 123 52.3 102
380-60 95.9 169 79.2 141
230-50 161.7 305 134.9 255
380/415-50 97.8 191 81.7 160
208/230-60 * * * *
230-60 * * * *
460-60 94.6 580 65.5 405
136-XL 575-60 75.8 484 52.3 324
380-60 114.9 641 79.2 448
230-50 * * * *
380/415-50 118.8 715 81.7 506
208/230-60 210.0 367 144.9 256
230-60 189.0 367 130.4 256
460-60 94.6 183 65.5 128
136-WD 575-60 75.8 147 52.3 102
380-60 114.9 203 79.2 141
230-50 196.3 361 134.9 255
380/415-50 118.8 226 81.7 160
208/230-60 * * * *
230-60 * * * *
460-60 94.6 580 79.2 485
146-XL 575-60 75.8 484 63.3 388
380-60 114.9 641 95.9 536
230-50 * * * *
380/415-50 118.8 715 97.8 605
208/230-60 210.0 367 175.4 307
230-60 189.0 367 157.9 307
460-60 94.6 183 79.2 153
146-WD 575-60 75.8 147 63.3 123
380-60 114.9 203 95.9 169
230-50 196.3 361 161.7 305
380/415-50 118.8 226 97.8 191
LEGEND
LRA — Locked Rotor Amps
RLA — Rated Load Amps
WD — Wye-Delta Start
XL — Across-the-Line Start
*Units are shipped with wye-delta start as standard. Across-the-line start is not available.

41
Electrical data (cont)
COMPRESSOR ELECTRICAL DATA, 30HXC UNITS (cont)
NAMEPLATE COMPRESSOR NUMBERS
UNIT SIZE 30HXC V-Hz A1 B1
(3 Phase) RLA LRA RLA LRA
208/230-60 * * * *
230-60 * * * *
460-60 103.1 685 71.2 525
161-XL 575-60 82.4 548 56.9 420
380-60 124.8 757 86.2 580
230-50 * * * *
380/415-50 128.6 856 88.2 600
208/230-60 228.8 433 157.6 350
230-60 205.5 433 141.8 350
460-60 103.1 216 71.2 175
161-WD 575-60 82.4 173 56.9 140
380-60 124.8 239 86.2 193
230-50 212.5 432 145.7 348
380/415-50 128.6 270 88.2 200
208/230-60 * * * *
230-60 * * * *
460-60 86.1 580 103.1 685
171-XL 575-60 68.8 484 82.4 548
380-60 104.2 641 124.8 757
230-50 * * * *
380/415-50 105.8 715 128.6 856
208/230-60 190.6 367 228.8 433
230-60 171.5 367 205.5 433
460-60 86.1 183 103.1 216
171-WD 575-60 68.8 147 82.4 173
380-60 104.2 203 124.8 239
230-50 174.8 361 212.5 432
380/415-50 105.8 233 128.6 270
208/230-60 * * * *
230-60 * * * *
460-60 103.1 685 103.1 685
186-XL 575-60 82.4 548 82.4 548
380-60 124.8 757 124.8 757
230-50 * * * *
380/415-50 128.6 856 128.6 856
208/230-60 228.8 433 228.8 433
230-60 205.5 433 205.5 433
460-60 103.1 216 103.1 216
186-WD 575-60 82.4 173 82.4 173
380-60 124.8 239 124.8 239
230-50 212.5 432 212.5 432
380/415-50 128.6 270 128.6 270
LEGEND
LRA — Locked Rotor Amps
RLA — Rated Load Amps
WD — Wye-Delta Start
XL — Across-the-Line Start
*Units are shipped with wye-delta start as standard. Across-the-line start is not available.

42
 COMPRESSOR ELECTRICAL DATA, 30HXC UNITS (cont)

NAMEPLATE COMPRESSOR NUMBERS

UNIT SIZE
V-Hz A1 A2 B1
30HXC
(3 Phase) RLA LRA RLA LRA RLA LRA
208/230-60 * * * * * *
230-60 * * * * * *
460-60 86.1 580 48.2 350 103.1 685
206-XL 575-60 68.8 484 38.6 280 82.4 548
380-60 104.2 641 58.4 390 124.8 757
230-50 * * * * * *
380/415-50 105.8 715 55.8 344 128.6 856
208/230-60 190.6 367 106.8 233 228.8 433
230-60 171.5 367 96.1 233 205.5 433
460-60 86.1 183 48.2 117 103.1 216
206-WD 575-60 68.8 147 38.6 93 82.4 173
380-60 104.2 203 58.4 130 124.8 239
230-50 174.8 361 99.4 260 212.5 432
380/415-50 105.8 226 60.2 150 128.6 270
208/230-60 * * * * * *
230-60 * * * * * *
460-60 103.1 685 71.2 485 103.1 685
246-XL 575-60 82.4 548 56.9 388 82.4 548
380-60 124.8 757 86.2 536 124.8 757
230-50 * * * * * *
380/415-50 128.6 856 88.2 605 128.6 856
208/230-60 228.8 433 157.6 307 228.8 433
230-60 205.5 433 141.8 307 205.5 433
460-60 103.1 216 71.2 153 103.1 216
246-WD 575-60 82.4 173 56.9 123 82.4 173
380-60 124.8 239 86.2 169 124.8 239
230-50 212.5 432 145.7 305 212.5 432
380/415-50 128.6 270 88.2 191 128.6 270
208/230-60 * * * * * *
230-60 * * * * * *
460-60 103.1 685 86.1 580 103.1 685
261-XL 575-60 82.4 548 68.8 484 82.4 548
380-60 124.8 757 104.2 641 124.8 757
230-50 * * * * * *
380/415-50 128.6 856 105.8 715 128.6 856
208/230-60 228.8 433 190.6 367 228.8 433
230-60 205.5 433 171.5 367 205.5 433
460-60 103.1 216 86.1 183 103.1 216
261-WD 575-60 82.4 173 68.8 147 82.4 173
380-60 124.8 239 104.2 203 124.8 239
230-50 212.5 432 174.8 361 212.5 432
380/415-50 128.6 270 105.8 226 128.6 270
208/230-60 * * * * * *
230-60 * * * * * *
460-60 103.1 685 103.1 685 103.1 685
271-XL 575-60 82.4 548 82.4 548 82.4 548
380-60 124.8 757 124.8 757 124.8 757
230-50 * * * * * *
380/415-50 128.6 856 128.6 856 128.6 856
208/230-60 228.8 433 228.8 433 228.8 433
230-60 205.5 433 205.5 433 205.5 433
460-60 103.1 216 103.1 216 103.1 216
271-WD 575-60 82.4 173 82.4 173 82.4 173
380-60 124.8 239 124.8 239 124.8 239
230-50 212.5 432 212.5 432 212.5 432
380/415-50 128.6 270 128.6 270 128.6 270
LEGEND
LRA — Locked Rotor Amps
RLA — Rated Load Amps
WD — Wye-Delta Start
XL — Across-the-Line Start
*Units are shipped with wye-delta start as standard. Across-the-line start is not available.

43
Electrical data (cont)
COMPRESSOR ELECTRICAL DATA, 30HXA UNITS

NAMEPLATE COMPRESSOR NUMBERS

UNIT SIZE 30HXA V-Hz A1 B1
(3 Phase) RLA LRA RLA LRA
208/230-60 * * * *
230-60 * * * *
460-60 64.9 485 64.9 485
076-XL 575-60 51.9 388 51.9 388
380-60 78.7 536 78.7 536
230-50 * * * *
380/415-50 81.5 605 81.5 605
208/230-60 143.8 307 143.8 307
230-60 129.4 307 129.4 307
460-60 64.9 153 64.9 153
076-WD 575-60 51.9 123 51.9 123
380-60 78.7 169 78.7 169
230-50 134.8 305 134.8 305
380/415-50 81.5 191 81.5 191
208/230-60 * * * *
230-60 * * * *
460-60 77.6 580 64.9 485
086-XL 575-60 62.1 484 51.9 388
380-60 94.0 641 78.7 536
230-50 * * * *
380/415-50 99.2 715 81.5 605
208/230-60 171.9 367 143.8 307
230-60 154.7 367 129.4 307
460-60 77.6 183 64.9 153
086-WD 575-60 62.1 147 51.9 123
380-60 94.0 203 78.7 169
230-50 163.9 361 134.8 305
380/415-50 99.2 226 81.5 191
208/230-60 * * * *
230-60 * * * *
460-60 94.8 685 64.9 485
096-XL 575-60 75.7 548 51.9 388
380-60 114.7 757 78.7 536
230-50 * * * *
380/415-50 119.9 856 81.5 605
208/230-60 209.8 433 143.8 307
230-60 188.8 433 129.4 307
460-60 94.8 216 64.9 153
096-WD 575-60 75.7 173 51.9 123
380-60 114.7 239 78.7 169
230-50 198.2 432 134.8 305
380/415-50 119.9 270 81.5 191
208/230-60 * * * *
230-60 * * * *
460-60 115.4 820 64.9 485
106-XL 575-60 92.2 656 51.9 388
380-60 139.7 906 78.7 536
230-50 * * * *
380/415-50 145.4 960 81.5 605
208/230-60 255.5 518 143.8 307
230-60 230.0 518 129.4 307
460-60 115.4 259 64.9 153
106-WD 575-60 92.2 207 51.9 123
380-60 139.7 286 78.7 169
230-50 240.2 485 134.8 305
380/415-50 145.4 303 81.5 191
LEGEND
LRA — Locked Rotor Amps
RLA — Rated Load Amps
WD — Wye-Delta Start
XL — Across-the-Line Start
*Units are shipped with wye-delta start as standard. Across-the-line start is not available.

44
 COMPRESSOR ELECTRICAL DATA, 30HXA UNITS (cont)
NAMEPLATE COMPRESSOR NUMBERS
UNIT SIZE 30HXA V-Hz A1 B1
(3 Phase) RLA LRA RLA LRA
208/230-60 * * * *
230-60 * * * *
460-60 115.4 820 77.6 580
116-XL 575-60 92.2 656 62.1 484
380-60 139.7 906 94.0 641
230-50 * * * *
380/415-50 145.4 960 99.2 715
208/230-60 255.5 518 171.9 367
230-60 230.0 518 154.7 367
460-60 115.4 259 77.6 183
116-WD 575-60 92.2 207 62.1 147
380-60 139.7 286 94.0 203
230-50 240.2 485 163.9 361
380/415-50 145.4 303 99.2 226
208/230-60 * * * *
230-60 * * * *
460-60 115.4 820 94.8 685
126-XL 575-60 92.2 656 75.7 548
380-60 139.7 906 114.7 757
230-50 * * * *
380/415-50 145.4 960 119.9 856
208/230-60 255.5 518 209.8 433
230-60 230.0 518 188.8 433
460-60 115.4 259 94.8 216
126-WD 575-60 92.2 207 75.7 173
380-60 139.7 286 114.7 239
230-50 240.2 485 198.2 432
380/415-50 145.4 303 119.9 270
208/230-60 * * * *
230-60 * * * *
460-60 140.7 920 94.8 685
136-XL 575-60 112.4 736 75.7 548
380-60 170.2 1017 114.7 757
230-50 * * * *
380/415-50 178.8 1226 119.9 856
208/230-60 311.4 581 209.8 433
230-60 280.3 581 188.8 433
460-60 140.7 291 94.8 216
136-WD 575-60 112.4 233 75.7 173
380-60 170.2 321 114.7 239
230-50 295.3 619 198.2 432
380/415-50 178.8 387 119.9 270
208/230-60 * * * *
230-60 * * * *
460-60 140.7 920 115.4 820
146-XL 575-60 112.4 736 92.2 656
380-60 170.2 1017 139.7 906
230-50 * * * *
380/415-50 178.8 1226 145.4 960
208/230-60 311.4 581 255.5 518
230-60 280.3 581 230.0 518
460-60 140.7 291 115.4 259
146-WD 575-60 112.4 233 92.2 207
380-60 170.2 321 139.7 286
230-50 295.3 619 240.2 485
380/415-50 178.8 387 145.4 303
LEGEND
LRA — Locked Rotor Amps
RLA — Rated Load Amps
WD — Wye-Delta Start
XL — Across-the-Line Start
*Units are shipped with wye-delta start as standard. Across-the-line start is not available.

45
Electrical data (cont)
COMPRESSOR ELECTRICAL DATA, 30HXA UNITS (cont)
NAMEPLATE COMPRESSOR NUMBERS
UNIT SIZE 30HXA V-Hz A1 B1
(3 Phase) RLA LRA RLA LRA
208/230-60 * * * *
230-60 * * * *
460-60 157.9 1175 106.6 790
161-XL 575-60 126.2 940 85.1 630
380-60 191.2 1299 129.0 870
230-50 * * * *
380/415-50 201.2 1265 133.4 1045
208/230-60 349.6 743 235.9 527
230-60 314.6 743 212.3 527
460-60 157.9 371 106.6 263
161-WD 575-60 126.2 297 85.1 211
380-60 191.2 410 129.0 290
230-50 332.3 638 220.3 607
380/415-50 201.2 400 133.4 348
208/230-60 * * * *
230-60 * * * *
460-60 129.6 920 157.9 1175
171-XL 575-60 103.6 736 126.2 940
380-60 156.9 1017 191.2 1299
230-50 * * * *
380/415-50 161.7 1226 201.2 1265
208/230-60 286.9 581 349.6 743
230-60 258.2 581 314.6 743
460-60 129.6 291 157.9 371
171-WD 575-60 103.6 233 126.2 297
380-60 156.9 321 191.2 410
230-50 267.2 619 332.3 638
380/415-50 161.7 387 201.2 400
208/230-60 * * * *
230-60 * * * *
460-60 157.9 1175 157.9 1175
186-XL 575-60 126.2 940 126.2 940
380-60 191.2 1299 191.2 1299
230-50 * * * *
380/415-50 201.2 1265 201.2 1265
208/230-60 349.6 743 349.6 743
230-60 314.6 743 314.6 743
460-60 157.9 371 157.9 371
186-WD 575-60 126.2 297 126.2 297
380-60 191.2 410 191.2 410
230-50 332.3 638 332.3 638
380/415-50 201.2 400 201.2 400
LEGEND
LRA — Locked Rotor Amps
RLA — Rated Load Amps
WD — Wye-Delta Start
XL — Across-the-Line Start
*Units are shipped with wye-delta start as standard. Across-the-line start is not available.

46
 COMPRESSOR ELECTRICAL DATA, 30HXA UNITS (cont)

NAMEPLATE COMPRESSOR NUMBERS

UNIT SIZE
V-Hz A1 A2 B1
30HXA
(3 Phase) RLA LRA RLA LRA RLA LRA
208/230-60 * * * * * *
230-60 * * * * * *
460-60 129.6 920 73.1 580 157.9 1175
206-XL 575-60 103.6 736 58.5 484 126.2 940
380-60 156.9 1017 88.5 641 191.2 1299
230-50 * * * * * *
380/415-50 161.7 1226 92.0 715 201.2 1265
208/230-60 286.9 581 162.0 367 337.6 743
230-60 258.2 581 145.8 367 303.8 743
460-60 129.6 291 73.1 183 157.9 371
206-WD 575-60 103.6 233 58.5 147 126.2 297
380-60 156.9 321 88.5 203 191.2 410
230-50 267.2 619 152.0 361 332.3 638
380/415-50 161.7 387 92.0 226 201.2 400
208/230-60 * * * * * *
230-60 * * * * * *
460-60 157.9 1175 106.6 820 157.9 1175
246-XL 575-60 126.2 940 85.1 656 126.2 940
380-60 191.2 1299 129.0 906 191.2 1299
230-50 * * * * * *
380/415-50 201.2 1265 133.4 960 201.2 1265
208/230-60 337.6 743 235.9 518 337.6 743
230-60 303.8 743 212.3 518 303.8 743
460-60 157.9 371 106.6 259 157.9 371
246-WD 575-60 126.2 297 85.1 207 126.2 297
380-60 191.2 410 129.0 286 191.2 410
230-50 332.3 638 220.3 485 332.3 638
380/415-50 201.2 400 133.4 303 201.2 400
208/230-60 * * * * * *
230-60 * * * * * *
460-60 157.9 1175 129.6 920 157.9 1175
261-XL 575-60 126.2 940 103.6 736 126.2 940
380-60 191.2 1299 156.9 1017 191.2 1299
230-50 * * * * * *
380/415-50 201.2 1265 161.7 1226 201.2 1265
208/230-60 337.6 743 286.9 581 337.6 743
230-60 303.8 743 258.2 581 303.8 743
460-60 157.9 371 129.6 291 157.9 371
261-WD 575-60 126.2 297 103.6 233 126.2 297
380-60 191.2 410 156.9 321 191.2 410
230-50 332.3 638 267.2 619 332.3 638
380/415-50 201.2 400 161.7 387 201.2 400
208/230-60 * * * * * *
230-60 * * * * * *
460-60 157.9 1175 157.9 1175 157.9 1175
271-XL 575-60 126.2 940 126.2 940 126.2 940
380-60 191.2 1299 191.2 1299 191.2 1299
230-50 * * * * * *
380/415-50 201.2 1265 201.2 1265 201.2 1265
208/230-60 337.6 743 337.6 743 337.6 743
230-60 303.8 743 303.8 743 303.8 743
460-60 157.9 371 157.9 371 157.9 371
271-WD 575-60 126.2 297 126.2 297 126.2 297
380-60 191.2 410 191.2 410 191.2 410
230-50 332.3 638 332.3 638 332.3 638
380/415-50 201.2 400 201.2 400 201.2 400
LEGEND
LRA — Locked Rotor Amps
RLA — Rated Load Amps
WD — Wye-Delta Start
XL — Across-the-Line Start
*Units are shipped with wye-delta start as standard. Across-the-line start is not available.

47
Controls
The standard microprocessor-based control in the 30HX Normal operation — The entering fluid temperature
units provides the following functions: sensor monitors changes in entering fluid temperature to
• leaving evaporator fluid control in COOL mode (using anticipate changes in the cooling load. Based on leaving
both entering and leaving fluid sensors) fluid temperature, the control adds or subtracts capacity to
• leaving condenser fluid control in HEAT mode (using maintain a constant leaving fluid temperature.
field-installed accessory entering and leaving fluid Dual chiller control — The dual chiller routine is avail-
sensors) able for the control of two units supplying chilled fluid on a
• 7-day time sequence of both pump and chiller common loop.
• temperature reset from return fluid (standard) or from In parallel flow applications, an additional leaving fluid
outdoor ambient (accessory), occupied space tempera- temperature thermistor must be installed and connected to
ture (accessory), 4 to 20 mA signal (accessory), or via the lead chiller.
the optional Carrier Comfort Network® (CCN) system
Transition to off — The chiller unloads once the “time-
• automatic compressor lead-lag switching based on com-
to-stop” signal has been given. This signal can be either
pressor accumulated run times and number of cycles
internal or external.
• automatic temperature range across the cooler
adjustment Safeties — The 30HX control as shipped from the fac-
• fully automatic control of the chiller components tory automatically deenergizes any active compressor that
experiences any of the following:
A 4-line, 20-character per line display is used to accom-
plish the following (see figure below): • electrical overload
• thermal overload protection
• set schedules and set points
• high pressure
• identify operating mode
• low oil pressure
• display current temperatures and pressures being used
• loss of refrigerant charge
by the control for internal calculations
• loss of phase protection
• identify abnormal (alarm or alert) conditions
• reverse rotation (control prevents compressor start)
Sequence of operation • current imbalance
The control has a 44 F (6.2 C) leaving fluid temperature • ground current
(LWT) set point as shipped from the factory. If temperature • low chilled fluid temperature
reset or demand limiting is in effect, this set point may Additional information
change.
Detailed information on controls and operation is available
Start-up — The chiller will start when the circulating in the Controls, Start-Up, Operation and Troubleshooting
pump is energized. (If the flow switch is applied, the chiller guide included with each unit. Packaged Service Training
starts after the flow has been proven.) The compressor programs are also available. Contact your Carrier repre-
starts unloaded. sentative for more information.
NOTE: Which compressor starts first is determined by the
automatic lead/lag feature.
If the entering fluid temperature is 85 F (29 C) or higher,
the maximum operating pressure (MOP) feature limits the
suction pressure to keep the chiller on line.

NAVIGATOR™ DISPLAY MODULE — STANDARD

Co m
fort
NA
VIG
Li n k
ATO
R
T IM E
EWT 12.
LW T 54. 58
SETP 44. 6 F
4 4 . 01 F
F

MO
DE
Run Al ar
m St
Statu atu s
s
Servi
ce Te
st
Temp
eratur
es
Pres
sures
Setpo
ints
Inputs
Outpu
ts
Confi
gurat
ion
Time
Cloc
k ESC
Opera
ting
Mode
Alarm s
s

ENT
ER

48
Guide specifications
Water-Cooled and Condenserless working-side pressure of 220 psig (1408 kPa).
HVAC Guide Specifications Water-side pressure rating shall be 300 psig
(2068 kPa). In Canada, maximum water-side
Size Range: 75 to 265 Nominal Tons pressure shall be 250 psig (1725 kPa), per the
(264 to 931 kW) Canadian National Registry.
Carrier Model Number: 30HXA — Condenserless 2. Shall be mechanically cleanable shell-and-tube
30HXC — Water-Cooled type with removable heads.
Part 1 — General 3. Tubes shall be internally enhanced, seamless-
1.01 SYSTEM DESCRIPTION copper type, and shall be rolled into
Microprocessor controlled water-cooled (30HXC) or tube sheets. Tube wall thickness shall be
condenserless (30HXA) liquid chiller utilizing screw 0.025 inches.
compressors and electronic expansion valves. 4. Shall be equipped with Victaulic fluid
1.02 QUALITY ASSURANCE connections.
A. Unit shall be rated in accordance with AHRI Stan- 5. Shell shall be insulated with 3/4-in. (19-mm)
dard 550/590, latest edition (U.S.A.). The 60 Hz closed-cell, polyvinyl chloride foam with a maxi-
30HXC units shall be AHRI certified for perfor- mum K factor of 0.28. Heads may require field
mance. insulation.
B. Unit construction shall comply with ASHRAE 15 6. Shall have a cooler drain and vent.
Safety Code, NEC, and ASME applicable codes 7. Design shall incorporate 2 independent refrig-
(U.S.A. codes), latest version. erant circuits.
C. Unit shall be manufactured at an ISO 9001:2000 8. Shall include isolation valves to allow isolation
registered facility. of the refrigerant charge in either the evapora-
D. 208/230 v, 230 v, 460 v, 575 v, 60 Hz units shall tor or the condenser.
be constructed in accordance with UL or UL Canada 9. Shall be equipped with factory-installed thermal
standards and shall be tested and listed by ETL or dispersion chilled fluid flow switch.
ETL, Canada, as conforming to those standards. D. Condenser (30HXC units):
Units shall carry the ETL and ETL, Canada, labels.
1. Shall be tested and stamped in accordance with
1.03 DELIVERY, STORAGE, AND HANDLING ASME code (U.S.A.) for a refrigerant working-
A. Unit controls shall be capable of withstanding side pressure of 220 psig (1408 kPa).
150 F (66 C) storage temperatures in the control Water-side pressure rating shall be 300 psig
compartment. (2068 kPa). In Canada, maximum water-side
B. When delivered, machine and starter should be pressure shall be 250 psig (1725 kPa), per the
stored indoors, protected from construction dirt and Canadian National Registry.
moisture. Inspect under shipping tarps, bags, or 2. Shall be mechanically cleanable shell-and-tube
crates to be sure water has not collected during tran- type with removable heads.
sit. Protective shipping covers should be kept in 3. Tubes shall be internally enhanced, seamless-
place until machine is ready for installation. copper type, and shall be rolled into
Part 2 — Products tube sheets. Tube wall thickness shall be
2.01 EQUIPMENT 0.025 inches.
A. General: 4. Shall be equipped with Victaulic water
connections.
Factory assembled, single-piece, water-cooled
(30HXC) or condenserless (30HXA) liquid chiller 5. Design shall incorporate 2 independent refrig-
with dual (2) independent refrigerant circuits. Con- erant circuits.
tained within the unit cabinet shall be all factory wir- E. Oil Separator (30HXA Units):
ing, piping, controls, refrigerant charge (HFC-134a) 1. Shall be tested and stamped in accordance with
(30HXA units shipped with holding charge only), ASME Code (U.S.A.) for a refrigerant working-
and special features required prior to field start-up. side pressure of 320 psig (2206 kPa).
Unit must fit through a standard door.
2. Design shall incorporate 2 independent refrig-
B. Compressors: erant circuits.
1. Semi-hermetic twin-screw compressors with F. Refrigeration Components:
internal muffler and check valve.
Refrigerant circuit components shall include oil sep-
2. Each compressor shall be equipped with a dis- arator, high and low side pressure relief devices, dis-
charge shutoff valve. charge and liquid line shutoff valves, filter drier (on
C. Cooler (Evaporator): 30HXC unit only) strainer (30HXA unit only), mois-
1. Shall be tested and stamped in accordance with ture indicating sight glass, expansion valve, refriger-
ASME Code (U.S.A.) for a refrigerant ant economizer (unit sizes 161-271), and complete

49
Guide specifications (cont)
charge of compressor oil. The 30HXC units shall configuration points and alarm diagnostics.
have a complete operating charge of refrigerant Reference to factory codes shall not be
HFC-134a; 30HXA units shall have a holding accepted. An industrial grade coiled exten-
charge of nitrogen. sion cord shall allow the display module to
G. Controls, Safeties, and Diagnostics: be moved around the chiller. Magnets shall
hold the display module to any sheet metal
1. Controls: panel to allow hands-free operation. Display
a. Unit controls shall include the following min- module shall have NEMA 4x housing suit-
imum components: able for use in outdoor environments. Dis-
1) Microprocessor with non-volatile mem- play shall have back light and contrast
ory. Battery backup system shall not be adjustment for easy viewing in bright sun-
accepted. light or night conditions. The display module
2) Power and control circuit terminal shall have raised surface buttons with posi-
blocks. tive tactile response.
3) ON/OFF control switch. d. The chiller controller shall include multiple
4) Replaceable solid-state relay panels. connection ports for communicating with
5) Thermistor installed to measure satu- the local equipment network, the Carrier
rated condensing temperature, cooler Comfort Network® (CCN) system and the
saturation temperature, compressor ability to access all chiller control functions
return gas temperature, and cooler from any point on the chiller.
entering and leaving fluid temperatures.
e. The control system shall allow software
6) Chilled fluid thermal dispersion flow
upgrade without the need for new hardware
switch.
modules.
b. Unit controls shall include the following
2. Safeties:
functions as standard:
Unit shall be equipped with thermistors and all
1) Automatic circuit lead/lag.
necessary components in conjunction with the
2) Capacity control based on leaving
control system to provide the unit with the fol-
chilled fluid temperature and compen-
lowing protections:
sated by rate of change of return-fluid
temperature with temperature set point a. Loss of refrigerant charge.
accuracy to 0.1 ° F (0.06° C). b. Reverse rotation.
3) Limiting the chilled fluid temperature c. Low chilled fluid temperature.
pull-down rate at start-up to an adjust-
d. Low oil pressure (each compressor circuit).
able range of 0.2° F to 2° F (0.11° C to
1.1° C) per minute to prevent excessive e. Ground current fault.
demand spikes at start-up. f. Thermal overload.
4) Seven-day time schedule. g. High pressure.
5) Leaving chilled fluid temperature reset
from return fluid, outdoor-air tempera- h. Electrical overload.
ture, space temperature, or 4 to 20 mA i. Loss of phase.
input. j. Current imbalance.
6) Demand limit control with 2-stage con-
k. Loss of flow.
trol (0 to 100% each) or through 4 to
20 mA input (0 to 100%). 3. Diagnostics:
7) Chilled and condenser water pump a. The display module shall be capable of indi-
start/stop control. cating the safety lockout condition by dis-
8) Dual chiller control for series chiller playing the information in clear language at
applications without addition of hard- the display. Information included for display
ware modules or additional thermistors. shall be:
9) Dual chiller control for parallel flow 1) Compressor lockout.
applications use one additional sensor. 2) Loss of charge.
10) Amperage readout per compressor 3) Low fluid flow.
with %MTA (must trip amps) per 4) Low oil pressure.
compressor. 5) Cooler freeze protection.
c. NEMA 1 control panel shall include, as stan- 6) High or low suction superheat.
dard, a portable hand held display module 7) Thermistor malfunction.
with a minimum of 4 lines and 20 characters 8) Entering and leaving-fluid temperature.
per line, of clear English, Spanish, Portu- 9) Evaporator and condenser pressure.
guese or French language. Display menus 10) Electronic expansion valve positions.
shall provide clear language descriptions of 11) All set points.
all menu items, operating modes, 12) Time of day.

50
 b. Display module, in conjunction with the 5. Temperature Reset Sensor:
microprocessor, must also be capable of dis- Unit shall reset leaving chilled fluid temperature
playing the output results of a service test. based on outdoor ambient temperature or
Service test shall verify operation of every space temperature when this sensor is installed.
switch, thermistor, and compressor before
* 6. Brine Option:
chiller is started. User shall be able to force
each output device. Unit shall be factory modified to start and oper-
ate at leaving chilled fluid temperatures of
c. Diagnostics shall include the ability to review
between 15 F (–9 C) and 40 F (4.4 C).
a list of the 20 most recent alarms with clear
language descriptions of the alarm event. * 7. Minimum Load Control:
Display of alarm codes without the ability Unit shall be equipped with factory (or field)
for clear language descriptions shall be installed, microprocessor-controlled, minimum
prohibited. load control that shall permit unit operation
d. An alarm history buffer shall allow the user down to 10% of full capacity.
to store no less than 20 alarm events with 8. Chillerviser System Manager:
clear language descriptions, time and date Control shall enable management of multiple
stamp event entry. parallel chillers (up to 8) or two (2) chillers in
H. Operating Characteristics: series in a single system.
Unit shall be capable of starting up with 95 F (35 C) 9. Minus-One-Pass Cooler:
entering fluid temperature to the cooler. Factory-installed option shall reduce pressure
I. Electrical Requirements: drop for high flow applications. Shall also
1. Unit primary electrical power supply shall enter provide same end inlet and outlet for
the unit at a single location (some units have 076-106 sizes and opposite end inlet for 116-
multiple power poles). 271 sizes.
2. Unit shall operate on 3-phase power at the volt- 10. Plus-One-Pass Cooler:
age shown in the equipment schedule. Factory-installed option shall enhance low tem-
3. Control voltage shall be 115-v (60 Hz) or 230-v perature brine performance.
(50 Hz), single-phase, separate power supply. 11. Suction Service Valves:
4. Unit shall be shipped with factory control and Unit shall be supplied with factory-installed suc-
power wiring installed. tion service valves to isolate compressor from
J. Special Features: evaporator and condenser.
Certain standard features are not applicable when 12. Cooler Head Insulation:
the features designated by * are specified. For assis- Unit shall be supplied with field-installed cooler
tance in amending the specifications, contact your insulation that shall cover the cooler heads.
local Carrier Sales office. 13. Energy Management Module:
* 1. Wye-Delta Starter: A factory or field installed module shall provide
Unit shall have a factory-installed, Wye-Delta the following energy management capabilities:
starter to minimize electrical inrush current. 4 to 20 mA signals for leaving fluid temperature
2. Sound Reduction Enclosure: reset, cooling set point reset or demand limit
control; 2-point demand limit control (from 0 to
Unit shall have field-installed sound reduction
100%) activated by a remote contact closure;
enclosure which covers the entire unit to muffle
and discrete input for “Ice Done” indication for
compressor noise.
ice storage system interface.
3. Vibration Isolation:
14. BACnet Communication Option:
Chiller manufacturer shall furnish neoprene iso-
Shall provide factory installed communication
lator pads for mounting equipment on a level,
capability with a BACnet MS/TP network.
concrete surface.
Allows integration with i-Vu® Open control sys-
4. Control Power Transformer: tem or a BACnet building automation system.
Unit shall be supplied with a field-installed trans-
former that will supply control circuit power
from the main unit power supply.

51
 Carrier Corporation • Syracuse, New York 13221 5-10
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Section 9 Pg 52 Catalog No. 04-52300025-01 Printed in U.S.A. Form 30HX-10PD
Tab 9a Replaces: 30HX-9PD