17/19EX
50/60 Hz
Centrifugal Liquid Chillers
with HFC-134a
Installation Instructions
SAFETY CONSIDERATIONS
Centrifugal liquid chillers are designed to provide safe and
DO NOT REUSE disposable (nonreturnable) cylinders or attempt to
refill them. It is DANGEROUS AND ILLEGAL. When cylinder is emp-
tied, evacuate remaining gas pressure, loosen the collar, and unscrew
and discard the valve stem. DO NOT INCINERATE.
reliable service when operated within design specifications.
When operating this equipment, use good judgment and safety
precautions to avoid damage to equipment and property or
injury to personnel.
CHECK THE REFRIGERANT TYPE before adding refrigerant to the
machine. The introduction of the wrong refrigerant can cause
machine damage or malfunction.
Operation of this equipment with refrigerants other than those cited
herein should comply with ASHRAE-15 (latest edition). Contact
Carrier for further information on use of this machine with other
refrigerants.
Be sure you understand and follow the procedures and safety
precautions contained in the machine instructions, as well
as those listed in this guide.
DO NOT VENT refrigerant relief devices within a building. Outlet from
rupture disc or relief valve must be vented outdoors in accordance with
the latest edition of ASHRAE (American Society of Heating, Refrig-
eration and Air Conditioning Engineers) 15. The accumulation of re-
frigerant in an enclosed space can displace oxygen and cause
asphyxiation.
PROVIDE adequate ventilation in accordance with ASHRAE 15, es-
pecially for enclosed and low overhead spaces. Inhalation of high
concentrations of vapor is harmful and may cause heart irregularities,
unconsciousness, or death. Intentional misuse can be fatal. Vapor is
heavier than air and reduces the amount of oxygen available for breath-
ing. Product causes eye and skin irritation. Decomposition products are
hazardous.
DO NOT ATTEMPT TO REMOVE fittings, covers, etc., while
machine is under pressure or while machine is running. Be sure pres-
sure is at 0 psig (0 kPa) before breaking any refrigerant connection.
CAREFULLY INSPECT all relief valves, rupture discs, and other re-
lief devices AT LEAST ONCE A YEAR. If machine operates in a cor-
rosive atmosphere, inspect the devices at more frequent intervals.
DO NOTATTEMPT TO REPAIR OR RECONDITION any relief valve
when corrosion or build-up of foreign material (rust, dirt, scale, etc.) is
found within the valve body or mechanism. Replace the valve.
DO NOT install relief devices in series or backwards.
USE CARE when working near or in line with a compressed spring.
Sudden release of the spring can cause it and objects in its path to act
as projectiles.
DO NOT USE OXYGEN to purge lines or to pressurize a machine for
any purpose. Oxygen gas reacts violently with oil, grease, and other
common substances.
DO NOT USE air to leak test. Use only refrigerant or dry nitrogen.
NEVER EXCEED specified test pressures. VERIFY the allowable test
pressure by checking the instruction literature and the design pressures
on the equipment nameplate.
DO NOT STEP on refrigerant lines. Broken lines can whip about, and
release refrigerant, causing personal injury.
DO NOT VALVE OFF any safety device.
BE SURE that all pressure relief devices are properly installed and func-
tioning before operating any machine.
DO NOT climb over a machine. Use platform, catwalk, or staging. Fol-
low safe practices when using ladders.
USE MECHANICAL EQUIPMENT (crane, hoist, etc.) to lift or move
inspection covers or other heavy components. Even if components are
light, use mechanical equipment when there is a risk of slipping or
losing your balance.
DO NOT WELD OR FLAMECUT any refrigerant line or vessel until
all refrigerant (liquid and vapor) has been removed from chiller. Traces
of vapor should be displaced with dry air or nitrogen and the work area
should be well ventilated. Refrigerant in contact with an open flame
produces toxic gases.
DO NOT USE eyebolts or eyebolt holes to rig machine sections or the
entire assembly.
DO NOT work on high-voltage equipment unless you are a qualified
electrician.
DO NOT WORK ON electrical components, including control panels,
switches, starters, or oil heater until you are sure ALL POWER IS OFF
and no residual voltage can leak from capacitors or solid-state
components.
LOCK OPEN AND TAG electrical circuits during servicing. IF WORK
IS INTERRUPTED, confirm that all circuits are deenergized before
resuming work.
AVOID SPILLING liquid refrigerant on skin or getting it into the eyes.
USE SAFETY GOGGLES. Wash any spills from the skin with soap
and water. If liquid refrigerant enters the eyes, IMMEDIATELY FLUSH
EYES with water and consult a physician.
NEVER APPLY an open flame or live steam to a refrigerant cylinder.
Dangerous over pressure can result. When it is necessary to heat re-
frigerant, use only warm (110 F [43 C]) water.
BE AWARE that certain automatic start arrangements CAN ENGAGE
THE STARTER, TOWER FAN OR PUMPS. Open the disconnectahead
of the starter, tower fan, and pumps. Shut off the machine or pump
before servicing equipment.
USE only repaired or replacement parts that meet the code require-
ments of the original equipment.
DO NOT VENT OR DRAIN waterboxes containing industrial brines,
liquid, gases, or semisolids without the permission of your process con-
trol group.
DO NOT LOOSEN waterbox cover bolts until the waterbox has been
completely drained.
DOUBLE-CHECK that coupling nut wrenches, dial indicators, or other
items have been removed before rotating any shafts.
DO NOT LOOSEN a packing gland nut before checking that the nut
has a positive thread engagement.
PERIODICALLY INSPECT all valves, fittings, and piping for corro-
sion, rust, leaks, or damage.
PROVIDE A DRAIN connection in the vent line near each pressure
relief device to prevent a build-up of condensate or rain water.
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 2 PC 211 Catalog No. 531-749 Printed in U.S.A. Form 17/19EX-2SI Pg 1 3-96 Replaces: 17/19EX-1SI
Tab 5a 5d
2
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NIH
—
Nozzle-In-Head
*Motors beginning with ‘‘E’’ and open drive motors (FA-JD) cannot be used with size 51-89 or 421-469 compressors.
†Open-drive motor codes:
ASME
‘U’ STAMP
UNDERWRITERS’
LABORATORIES
ARI (Air Conditioning
and Refrigeration
Institute)
PERFORMANCE
CERTIFIED
(60 Hz Only)
Fig. 1 — Model Number Identification
3
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RIG MACHINE COMPONENTS — Refer to instructions
on page 5, Fig. 6-8, and Carrier certified drawings for ma-
chine component disassembly.
Before rigging the compressor, disconnect the wires
leading from the power panel to the control center at the
power panel.
IMPORTANT: Only a qualified service technician should
disassemble and reassemble the machine. After reas-
sembly, the machine must be dehydrated and leak tested.
NOTE: Wiring for sensors must be disconnected. Label each
wire before removal (see Carrier certified drawings).
Detach all transducer and sensor wires at the sensor, then
clip all wire ties necessary to remove the wires from the heat
exchangers.
When rigging components separately, the open drive
(17EX) motor must be removed to avoid overturning.
Do not attempt to disconnect flanges while the machine
is under pressure. Failure to relieve pressure can result
in personal injury or damage to the unit.
19EX
LEGEND
1
—
Refrigerant Liquid Line to Economizer/
Storage Vessel
15
16
17
18
19
20
—
—
—
—
—
—
Motor Sight Glass (Not Shown)
Oil Filter
Oil Level Sight Glasses (2)
Cooler Relief Valves (Not Shown)
Oil Heater (Not Shown)
Auxiliary Power Panel
27
28
29
30
31
32
33
—
—
—
—
—
—
—
Oil Cooler
Isolation Valves (Not Shown)
Refrigerant Filter Drier
Local Interface Display Control Panel
Economizer/Storage Vessel
Rigging Guide (Not Shown)
Economizer/Storage Vessel
Relief Valves
2
3
—
—
—
—
—
—
—
—
—
—
—
—
—
Cooler Suction Pipe
Compressor Suction Elbow
Condenser
4
5
Condenser Discharge Pipe
Compressor Discharge Elbow
Guide Vane Actuator
6
(Field Wiring Terminals)
Pumpdown Unit (Not Shown)
Low-Side Float Box Cover
Refrigerant Liquid Line to Cooler
Oil Drain and Charging Valve
Oil Pump
7
21
22
23
24
25
26
—
—
—
—
—
—
8
Economizer Gas Line to Compressor
Gear Inspection Cover
34
35
36
37
38
39
40
—
—
—
—
—
—
—
Cooler
9
High-Side Float Box Cover
Take-Apart Connections
Cooler Waterbox Vent
Cooler Marine Waterbox
Cooler Waterbox Drain
Condenser Waterbox Drain
10
11
12
13
14
2-Stage Hermetic Compressor
Condenser Waterbox Vent (Not Shown)
Condenser Marine Waterbox
Hermetic Compressor Motor
Compressor Motor Terminal Box
(Not Shown)
Refrigerant Charging/Service
Valve 10 (Not Shown)
Fig. 2 — Typical 19EX Installation
4
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COMPONENT DISASSEMBLY
To Separate Compressor from the Machine
7. Disconnect wiring to the control center and power panel.
8. Connect rigging to the compressor.
9. Unbolt compressor from the utility vessel (Fig. 7,
Items 2, 4, and 5).
1. Make sure to check that the machine is at atmospheric
pressure before disassembly.
10. Hoist the compressor off of the unit.
2. Since the center of gravity is high on 17EX machines,
the motor MUST be removed before rigging the
machine.
3. Suction elbow should be rigged separately (Fig. 6,
Item 2). Place slings around the elbow and attach to the
hoist. Remove bolting at flanges, (Fig. 6, Items 1 and 3).
Detach the elbow.
4. Unbolt discharge flange to the condenser at flange
(Fig. 8, Item 3). Cut copper lines (Fig. 6, Items 7, 8,
and 9).
5. Disconnect and detach the economizer vent line
(Fig. 8, Item 4). Unbolt the line at flange (Fig. 8,
Item 2).
11. If the compressor is to be transported or set down,
the base should be bolted to sections of 4 in. x 6 in.
lumber.
To Separate Condenser from the Machine
1. Unbolt flange (Fig. 6, Item 3).
2. Unbolt flange (Fig. 6, Item 4).
3. Cut copper pipe (Fig. 6, Item 7).
4. Unbolt hot flange (Fig. 7, Item 1).
5. Connect rigging to all corners of the condenser.
6. Unbolt condenser feet (Fig. 8, Items 1 and 6).
6. On 19EX machines, disconnect the motor cooling drain
line at flange (Fig. 8, Item 5).
LEGEND
1
2
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Condenser
15
16
17
18
19
20
21
—
—
—
—
—
—
—
Refrigerant Liquid Line to Cooler
Power Panel (Field Wiring Terminals)
Oil Level Sight Glasses
Oil Drain and Charging Valve
Oil Heater (Hidden)
27
28
29
30
31
32
33
34
35
36
—
—
—
—
—
—
—
—
—
—
Pumpout Unit
Cooler Suction Pipe
High Side Float Box Cover
Cooler
3
Compressor Suction Elbow
Guide Vane Actuator
Condenser Discharge Pipe
Oil Filter (Hidden)
4
Cooler Waterbox Drain
Take-Apart Connections (Typical)
Cooler Marine Waterbox Cover
Cooler Waterbox
Cooler Waterbox Vent
Condenser Waterbox Drain
Refrigerant Liquid Line to
Economizer/Storage Vessel
Condenser Waterbox Vent
5
6
Oil Pump
7
Two-Stage Compressor
Compressor Discharge Elbow
Gear Inspection Cover
Economizer Gas Line to Compressor
Open Drive Compressor Motor
Compressor Motor Terminal Box
Coupling Guard
Refrigerant Charging/Service Valve
10 (Not Shown)
Cooler Relief Valves (Not Shown)
Economizer/Storage Vessel
Oil Cooler
Control Center
Economizer/Storage Vessel
Relief Valves
8
9
22
23
24
25
26
—
—
—
—
—
10
11
12
13
14
37
—
Low-Side Float Box Cover
Fig. 3 — Typical 17EX Installation
5
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NOTES:
1. Each chain must be capable of supporting the maximum weight of the
machine.
2.
= the approximate center of gravity.
3. Maximum possible weight is 88,500 lb (40 166 kg) which includes a maxi-
mum of 6,000 lb (2 721 kg) of HFC-134a refrigerant in the storage tank.
17EX FRONT VIEW
LIFTING
VESSEL
LENGTH
MAXIMUM
WEIGHT
HEIGHT
FROM FLOOR
‘‘E’’
CENTER OF GRAVITY
CHAIN LENGTH
APPROXIMATE LOCATION
COOLER
SIZE
LIFTING
ANGLE
‘‘A’’
ft-in.
‘‘B’’
ft-in. mm
9-0 2743 16-1 4902 13-6 4115
‘‘C’’
‘‘D’’
‘‘F’’
ft-in.
‘‘G’’
‘‘H’’
ft-in.
ft-in.
mm
lb
kg
ft-in.
mm
mm
ft-in. mm
ft-in. mm
mm
ft-in.
mm
mm
30°
45°
60°
10-
12-
3
7
3124
16-11
5156
6299
8306
45-48
17-0 5182 88,550 40 166
3835 11-7 3531 19-1 5817 16-9 5105
20-
27-
8
3
4-1
1245
9-1
2769
4-9
1448
17-10 5436 17-1 5207 24-9 7544 22-8 6909
Fig. 4 — 17EX Machine Rigging Guide
NOTES:
1. Each chain must be capable of supporting the maximum weight of the
machine.
2.
= the approximate center of gravity.
3. Maximum possible weight is 78,700 lb (35,698 kg) which includes a maxi-
mum of 6,000 lb (2,268 kg) of HFC-134a in the storage tank.
19EX FRONT VIEW
LIFTING
VESSEL
LENGTH
MAXIMUM
WEIGHT
HEIGHT
FROM FLOOR
‘‘E’’
CENTER OF GRAVITY
CHAIN LENGTH
APPROXIMATE LOCATION
COOLER
SIZE
LIFTING
ANGLE
‘‘A’’
ft-in.
‘‘B’’
ft-in. mm
7-2 1880 11-11 3632 11-1 3378
‘‘C’’
‘‘D’’
‘‘F’’
ft-in.
‘‘G’’
‘‘H’’
ft-in.
ft-in.
mm
lb
kg
ft-in.
mm
mm
ft-in.
mm
ft-in. mm
mm
ft-in.
mm
mm
30°
45°
60°
30°
45°
60°
30°
45°
60°
7-2 1880
8-9 2667
13-7
16-2
20-9
15-1
17-5
21-7
16-4
19-8
25-5
4140
4928
6325
4597
5309
6579
4978
5994
7747
31-33
41-44
45-48
12-3 3734 55,000 24 948
12-3 3734 70,000 31 752
17-0 5182 78,700 35 698
8-9 2667 14-
0
0
0
4267 13-4 4064
5486 17-6 5334
3962 12-2 3708
3-10 1168
6-1
1854
4-6
4-8
4-8
1372
12-5 3785 12-5 3785 18-
6-7 2007
8-0 2438
6-9 2057 13-
8-3 2515 14-11 4547 14-3 4343
4-
0
1219
6-0
8-3
1829
2515
1422
1422
11-4 3454 11-6 3505 18-
9-1 2769 9-6 2896 15-
11-1 3378 11-6 3505 17-
7
1
9
5664 18-0 5486
4597 14-7 4445
5410 17-4 5283
3-10 1168
15-9 4800 16-0 4877 22-10 6960 22-6 6858
Fig. 5 — 19EX Machine Rigging Guide
6
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NOTE: Item numbers are referenced in Rigging the Machine, Component Disassembly section.
Fig. 6 — Typical Top View (19EX Shown)
NOTE: Item numbers are referenced in Rigging the Machine, Component Disassembly section.
Fig. 7 — Typical Side View (19EX Shown)
7
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NOTE: Item numbers are referenced in Rigging the Machine, Component Disassembly section.
Fig. 8 — Typical Motor End View (19EX Shown)
To Separate Cooler From Utility Vessel
2. All gasketed or O-ring joints which have been disas-
sembled must be assembled using new gaskets and O-rings.
These new gaskets and O-rings (along with gasket seal-
ant, O-ring lubricant, and copper line couplings) are avail-
able through your Carrier representative.
1. Remove condenser (see previous section).
2. Cut copper lines (Fig. 6, Items 6 and 8).
3. Unbolt liquid refrigerant line at flange (Fig. 7, Item 3).
4. Connect rigging to all four corners of the cooler before
lifting the unit.
5. Unbolt connections to the utility vessel (Fig. 6, Items 5
and 10).
3. Braze all copper lines back together using a suitable braz-
ing material for copper. Carrier recommends an AWS
(American Welding Society) Classification BCuP-2.
To Assemble the Machine
Do not tilt the compressor; oil is contained in the oil
sump.
1. Follow disassembly instructions (in reverse order) and bolt
all flanges back together using a gasket sealant. The fol-
lowing torque requirements are specified:
Additional Notes
1. Use silicon grease on new O-rings when refitting.
2. Use gasket sealant on new gaskets when refitting.
3. Cooler, utility, and condenser vessels may be rigged ver-
tically, as separate components. Rigging should be fixed
to all four corners of the tube sheet.
4. New gaskets, grease for O-rings, and gasket sealant for a
complete take-apart operation are available in a kit. Con-
tact your Carrier representative.
TORQUE
FIG.
6
ITEM NO.
ft-lb
580
170
840*
380
250
280
170
380
71
N-m
786
230
1139*
515
340
380
230
515
96
3
1 or 4
5 and 10
1
7
4 and 5
1 and 6
2
3
5
8
N-m
—
Newton Meters
*This torque is used to rig the entire machine. Once the machine
is in place, if no further rigging is anticipated, the bolt torque can
be reduced to 280 ft-lb (380 N-m).
8
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NOTES:
1. Certified drawings available upon request.
2. Service access should be provided per American Society of Heating, Refrigeration, and Air Con-
ditioning Engineers (ASHRAE) 15, latest edition, National Fire Protection Association (NFPA)
70, and local safety codes.
DIMENSIONS
A (LENGTH)†
B (WIDTH)
C (HEIGHT)
H (TUBE PULL)
CONDENSER
SIZE
17EX**
ft-in. mm
19EX
ft-in.
mm
ft-in.
mm
3264
3708
ft-in.
mm
ft-in.
mm
31 - 33
41 - 43
45 - 47
51 - 53
55 - 57
15-6
15-6
20-3
15-6
20-3
4724
4724
6172
4724
6172
N/A
N/A
N/A
N/A
8-10
2692
10-81⁄2
12-2
12-10
12-10
17- 6
12-10
17- 6
3912
3912
5334
3912
5334
12-2
N/A
3708
N/A
9-41⁄2
2858
12-5
3785
12-2
3708
SERVICE CLEARANCES
E (LENGTH)††
D (DIAMETER)††
F (DIAMETER)
G (LENGTH)
COMPONENT
ft-in.
mm
ft-in.
3- 71⁄2
3-101⁄4
4- 11⁄4
—
mm
1105
1175
1251
—
ft-in.
—
mm
ft-in.
—
mm
—
Motor DB - DQ
Motor EA - ED
Motor EE
1-111⁄4
591
679
—
—
—
—
—
—
2- 23⁄4
—
—
—
—
—
Low-Side Float
2-61⁄2
775
1-0
305
NOZZLE SIZES
NOZZLE SIZES (in.)ሻ
HEAT
EXCHANGER
NOZZLE TYPE
Cooler Passes
Condenser Passes
1
2
3
1
2
3
Marine
NIH
12
12
20
18
—
—
10
10
14
14
—
—
10
10
12
10
—
—
12
—
20
18
—
20
10
10
14
12
16
16
10
10
12
10
—
—
31 - 33
41 - 48
51 - 57
Marine
NIH
Marine
NIH
LEGEND
Nozzle-In-Head
*Distance required for tube removal may be either end.
WALL THICKNESS
NOMINAL PIPE SIZE (in.)
SCHEDULE¶
NIH
—
in.
mm
9.27
9.53
9.53
9.53
9.53
9.53
10
12
14
16
18
20
40
Std
30
.365
.375
.375
.375
.375
.375
†Based on 2-pass, nozzle-in-head (NIH) waterboxes with 150 psi (1038 kPa)
covers.
**Overall width of units with 17 Series compressors will vary greatly depend-
ing upon the application. See the appropriate certified drawings.
††For hermetic motors (19 Series) only.
30
The table at right provides additional information on nozzle sizes. Victaulic
grooves are standard for these nozzles. Optional 150 psi (1034 kPa) and
300 psi (2068 kPa) flanges are available.
Std
20
¶In conformance with ASA B36.10 (American Standards Association).
Fig. 9 — Typical Dimensions
9
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Table 1 — 17/19EX Heat Exchanger, Economizer/Storage Vessel, Piping, and Pumpout Unit Weights*
COOLER
TOTAL
WEIGHT
ECONOMIZER/
STORAGE
VESSEL**
COOLER
CHARGE
ECONOMIZER MISCELLANEOUS PUMPOUT
REFRIGERANT PIPING UNIT
COOLER
SIZE†
Dry
Operating††
lb kg
Refrigerant
lb kg
Water
lb
kg
lb
kg
lb
kg
lb
kg
lb
kg
lb
gal
kg
L
31
32
33
41
42
43
44
45
46
47
48
14,173
14,538
14,904
21,674
22,019
6 429 17,518
6 594 18,117
6 760 18,722
7 946 1,540
8 218 1,640
8 492 1,740
699 1,810 217
744 1,944 233
789 2,078 249
821
882
943
821
882 7,169
943
3252
610
277
820
372
9 831 26,120 11 848 1,900
9 988 26,736 12 127 2,000
862 2,441 293 1 107 1 107
907 2,575 309 1 168 1 168
953 2,709 325 1 229 1 229
993 3,285 394 1 490 1 490
7,169
7,900
3 252
3 583
610
840
277
381
1,095
497
521
22,364 10 144 27,322 12 393 2,100
23,841 10 814 29,836 13 533 2,190
210
95
25,032 11 354 30,790 13 966 2,260 1 025 3,006 361 1 363 1 363
25,529 11 580 31,658 14 360 2,360 1 070 3,192 383 1 448 1 448
26,025 11 805 32,496 14 740 2,460 1 116 3,378 405 1 532 1 532
28,153 12 770 36,053 16 353 2,540 1 152 4,173 500 1 893 1 893
1,149
CONDENSER TOTAL WEIGHT
CONDENSER
CONDENSER CHARGE
Refrigerant Water
Dry
Operating††
SIZE†
lb
kg
lb
kg
lb
kg
lb
gal
193
210
226
257
274
290
326
348
371
325
355
381
412
457
492
kg
L
31
32
33
41
42
43
45
46
47
51
52
53
55
56
57
10,454
10,809
11,164
13,768
14,118
14,468
16,676
17,172
17,669
17,188
17,848
18,400
20,725
21,663
22,446
4 742
4 903
5 064
6 245
6 404
6 563
7 564
7 789
8 015
7 796
8 096
8 346
9 401
9 826
10 181
13,022
13,514
14,000
16,999
17,498
17,978
20,800
21,489
22,178
20,993
21,923
22,682
25,598
26,896
27,980
5 907
6 130
6 350
7 711
7 937
8 155
9 435
9 747
10 060
9 522
9 944
10 288
11 611
12 199
12 691
950
431
431
431
494
494
494
635
635
635
499
499
499
644
644
644
1,613
1,750
1,886
2,146
2,282
2,419
2,720
2,908
3,096
2,707
2,964
3,178
3,453
3,808
4,105
732
732
794
950
794
950
855
855
1,090
1,090
1,090
1,400
1,400
1,400
1,100
1,100
1,100
1,420
1,420
1,420
973
973
1 035
1 097
1 234
1 319
1 404
1 228
1 344
1 442
1 566
1 727
1 862
1 035
1 097
1 234
1 319
1 404
1 228
1 344
1 442
1 566
1 727
1 862
*If a machine configuration other than 2-pass, 150 psig (1034 kPa), NIH waterbox configuration is used, refer to Tables 3
and 4 to obtain the additional dry and water weights that must be added to the values shown in this table.
†Cooler and condenser weights shown are based upon 2-pass, nozzle-in-head (NIH) waterboxes with 150 psig (1034 kPa)
covers. Includes components attached to cooler, but does not include suction/discharge, elbow, or other interconnecting
piping.
**Dry weight includes all components attached to economizer: Covers, float valves, brackets, control center (31 lb [14 kg]),
and power panel (20 lb [9 kg]). Dry weight does not include compressor weight, motor weight, or pumpout condensing unit
weight. The pumpout condensing unit weight is 210 lb (95 kg). For compressor and motor weights, refer to Tables 6, 7, 8,
10A, and 10B.
††Operating weight includes the sum of the dry weight, refrigerant weight, and water weight.
Table 2 — Refrigerant Charge
TOTAL REFRIGERANT
CHARGE*
HEAT EXCHANGER SIZE
COOLER CHARGE
CONDENSER CHARGE
ECONOMIZER CHARGE
Cooler
31
Condenser
lb
kg
699
lb
kg
lb
kg
lb
kg
31
32
33
41
42
43
51
52
53
45
46
47
55
56
57
1540
1640
1740
1900
2000
2100
2190
2190
2190
2260
2360
2460
2540
2540
2540
950
431
431
431
494
494
494
499
499
499
635
635
635
644
644
644
3100
3200
3300
3600
3700
3800
3900
3900
3900
4500
4600
4700
4800
4800
4800
1 406
1 452
1 497
1 633
1 678
1 724
1 769
1 769
1 769
2 041
2 087
2 132
2 177
2 177
2 177
32
744
950
33
789
950
41
862
1090
1090
1090
1100
1100
1100
1400
1400
1400
1420
1420
1420
42
907
610
277
43
953
44
993
44
993
44
993
45
1 025
1 070
1 116
1 152
1 152
1 152
46
47
844
381
48
48
48
*Total machine refrigerant charge includes the cooler, condenser, and economizer.
NOTE: Regulations mandate that machine shipping charge is limited to 7500 lb (3402 kg).
10
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Table 3 — Additional Cooler Weights*
DESIGN MAXIMUM
WATER PRESSURE
ADDITIONAL
DRY WEIGHT
ADDITIONAL
WATER WEIGHT
COOLER
FRAME
WATERBOX
TYPE
NUMBER
OF PASSES
psig
150
300
300
150
150
300
300
150
300
300
150
150
300
300
kPa
lb
kg
lb
—
gal
—
kg
—
L
NIH
NIH
1, 3
1, 3
2
1034
2068
2068
1034
1034
2068
2068
1034
2068
2068
1034
1034
2068
2068
655
2226
1406
780
297
1010
638
—
—
—
—
—
NIH
—
—
—
—
3
4
Marine
Marine
Marine
Marine
NIH
1, 3
2
354
3192
1596
3192
1596
—
383
191
383
191
—
1448
724
1448
724
—
1448
724
1448
724
—
390
177
1, 3
2
3412
1706
515
1548
774
1, 3
1, 3
2
234
NIH
2941
2085
2100
792
1334
946
—
—
—
—
NIH
—
—
—
—
Marine
Marine
Marine
Marine
1, 3
2
953
5102
2551
5102
2551
612
306
612
306
2314
1157
2314
1157
2314
1157
2314
1157
359
1, 3
2
3844
2536
1744
1150
NIH
—
Nozzle-In-Head
*When using a machine configuration other than 2-pass, NIH waterboxes with 150 psig (1038 kPa) covers, add the weights listed in this table to the appropriate weights
in Table 1 to obtain the correct cooler weight.
Table 4 — Additional Condenser Weights*
DESIGN MAXIMUM
WATER PRESSURE
ADDITIONAL
DRY WEIGHT
ADDITIONAL
HEAT EXCHANGER
SIZE
NUMBER OF
PASSES
WATER WEIGHT
COMPONENT
WATERBOX TYPE
psig
150
300
300
150
150
300
300
150
300
300
150
150
300
300
150
300
300
150
300
kPa
lb
kg
119
602
396
382
191
689
498
156
749
513
767
306
1202
739
†
lb
—
gal
—
kg
—
L
—
NIH
NIH
3
3
1034
2068
2068
1034
1034
2068
2068
1034
2068
2068
1034
1034
2068
2068
1034
2068
2068
1034
2068
262
1328
872
—
—
—
—
NIH
2
—
—
—
—
31 - 33
Marine
Marine
Marine
Marine
NIH
3
842
2276
1138
2276
1138
—
273
136
273
136
—
1032
516
1032
516
—
1032
516
1032
516
—
2
421
3
1520
1099
344
2
1, 3
1, 3
2
NIH
1652
1132
1692
674
—
—
—
—
CONDENSER
NIH
—
—
—
—
41 - 43
45 - 47
Marine
Marine
Marine
Marine
NIH
1, 3
2
3400
1700
3400
1700
—
408
204
408
204
—
1542
771
1542
771
—
1542
771
1542
771
—
1, 3
2
2651
1630
†
1
NIH
1
1588
1591
25
720
721
11
—
—
—
—
51 - 53
55 - 57
NIH
2
—
—
—
—
Marine
Marine
2
1734
1734
208
208
787
787
787
787
2
1225
555
NIH
—
Nozzle-In-Head
*When using a machine configuration other than 2-pass, NIH waterboxes with 150 psig (1034 kPa) covers, add the weights listed in this table to the appropriate weights
in Table 1 to obtain the correct condenser weight.
†Subtract 228 lb (103 kg) from the weight shown in Table 1.
Table 5 — Auxiliary Connection Sizes
SIZE AND STYLE
USAGE
Pumpout Condenser Refrigerant Vapor Connection
(Rupture Disc)
3
⁄8
in. Male Flare
Pumpout Water Inlet Connection
Pumpout Water Outlet Connection
Power Panel Oil Pump Power Connection
Waterbox Vent Connection
1
1
⁄
2
2
in. FPT
⁄
in. NPT Conduit
1 in. NPT
11⁄4 in. FPT
Waterbox Drain Connection
Cooler Relief Valve Connection
Economizer/Storage Vessel Connection
11
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Table 6 — Total 19EX Motor Weights (60 Hz)
Table 7 — Total 19EX Motor Weights (50 Hz)
LOW VOLTAGE MEDIUM VOLTAGE HIGH VOLTAGE
MOTOR SIZE
LOW VOLTAGE MEDIUM VOLTAGE HIGH VOLTAGE
MOTOR SIZE
lb
kg
673
lb
kg
lb
kg
lb
kg
lb
kg
lb
kg
DB
DC
DD
DE
DF
DG
DH
DJ
1484
1496
1514
1620
1657
1662
1749
1790
1823
2262
2337
2415
2456
NA
1420
1478
1503
1536
1635
1677
1715
1758
2267
2374
2501
2558
2688
2721
2031
2233
2358
2514
2989
644
NA
NA
DB
DC
DD
DE
DF
DG
DH
DJ
1662
1677
1696
1710
1792
1863
1921
2222
2331
2373
2481
2555
2597
NA
754
1568
1628
1662
1707
1807
2212
2283
2340
2472
2624
2692
2864
2924
3014
2392
2380
2747
2952
3161
711
NA
NA
678
670
NA
NA
760
740
NA
NA
687
682
2097
2152
2656
2741
2806
2876
3054
3162
3222
3277
3402
3467
2377
2427
2602
2827
3258
951
769
754
2312
2332
2386
2947
3022
3097
3187
3257
3317
3407
3502
3612
2682
2887
3257
3442
3533
1049
1058
1082
1337
1371
1405
1446
1477
1505
1545
1588
1638
1217
1310
1477
1561
1603
728
696
976
776
775
752
742
1205
1243
1273
1305
1385
1434
1461
1486
1543
1573
1078
1101
1180
1282
1478
813
820
754
761
845
1003
1036
1061
1121
1190
1221
1299
1326
1367
1085
1080
1246
1339
1434
793
778
871
812
797
1008
1057
1076
1125
1159
1178
NA
DK
DL
DM
DN
DP
DQ
EA
EB
EC
ED
EE
827
1028
1077
1134
1160
1219
1234
921
DK
DL
DM
DN
DP
DQ
EA
EB
EC
ED
EE
1026
1060
1095
1114
NA
1968
2128
2241
2366
2664
893
2232
2443
2646
2760
3009
1012
1108
1200
1252
1365
965
1013
1070
1140
1356
1017
1073
1208
NA
—
Not Available
NA
—
Not Available
NOTE: Low-voltage motors are rated below 600 v, medium-voltage motors range
from 600 v to 6,000 v, and high-voltage motors are rated above 6,000 v.
NOTE: Low-voltage motors are rated below 600 v, medium-voltage motors range
from 600 v to 6,000 v, and high-voltage motors are rated above 6,000 v.
Table 8 — Compressor Weights
19EX COMPRESSOR
17/19FA5 COMPRESSOR
19FA4
COMPONENT
lb
kg
lb
kg
lbs
kg
Compressor
Weight*
4886
2216
5150
2336
2625
1191
Suction
Elbow
500
227
500
227
325
147
*Weight does not include motor.
NOTES:
1. 19EX compressors include sizes −51 through −89.
2. 17/19FA5 compressors include sizes 531 through 599.
3. 19FA4 compressors include sizes 421 through 469.
Table 9 — Total 17EX Drive Component Weights
MOTOR
HORSEPOWER (kW)
CODE
BASE WEIGHT
COUPLING WEIGHT
GUARD WEIGHT
lb
kg
lb
kg
lb
kg
A
B
C
D
1200
1200
1200
1100
544
544
544
499
75
75
75
75
34
34
34
34
25
25
25
25
11
11
11
11
12
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Table 10A — 17EX Motors — Total Weight, Lbs (English)
ENCLOSURE
TYPE
HERTZ
VOLTAGE
SIZE (HP)
FA (1250)
FB (1500)
FC (1750)
FD (2000)
2400
3300
4160
6900
4836
4824
4836
5596
5721
5832
5721
6577
5900
5832
5900
8776
7160
7127
7160
8990
60 Hz
Open-Drip Proof
(ODP)
3000
3300
6300
5518
5518
5596
5878
5878
6577
7148
7148
8875
9048
9073
8976
50 Hz
60 Hz
50 Hz
60 Hz
50Hz
GA (1350)
GB (1500)
GC (1750)
GD (2000)
2400
3300
4160
6900
5046
5034
5046
5806
5871
5982
5871
6727
6050
5982
6050
8926
7270
7237
7270
9100
Weather Protected
Type I (WPI)
3000
3300
6300
5728
5728
5806
6028
6028
6727
7298
7298
9025
9158
9183
9086
HA (1250)
HB (1500)
HC (1750)
HD (2000)
2400
3300
4160
6900
5146
5134
5146
5906
6151
6262
6151
7007
6330
6262
6330
9206
7600
7567
7600
9430
Weater Protected
Type II (WPII)
3000
3300
6300
5828
5828
5906
6308
6308
7007
7578
7578
9305
9488
9513
9416
JA (1250)
JB (1500)
JC (1750)
JD (2000)
2400
3300
4160
6900
5707
5694
5707
6466
6746
6857
6746
7602
6925
6857
6925
9801
8290
8257
60 Hz
50 Hz
Totally Enclosed
Water-To-Air Cooled
(TEWAC)
8290
10,120
3000
3300
6300
6388
6388
6466
6903
6903
7602
8173
8173
9900
10,178
10,203
10,106
Table 10B — 17EX Motors — Total Weight, Kg (SI)
ENCLOSURE
TYPE
FREQ
VOLTAGE
SIZE (kW)
FA (932)
FB (1119)
FC (1305)
FD (1492)
2400
3300
4160
6900
2194
2188
2194
2538
2595
2645
2595
2983
2676
2645
2676
3981
3248
3233
3248
4033
60 Hz
50 Hz
60 Hz
50 Hz
60 Hz
50 Hz
60 Hz
50 Hz
Open-Drip Proof
(ODP)
3000
3300
6300
2503
2503
2538
2666
2666
2983
3242
3242
4026
4104
4116
4072
GA (932)
GB (1119)
GC (1305)
GD (1492)
2400
3300
4160
6900
2289
2283
2289
2634
2663
2713
2663
3051
2744
2713
2744
4049
3298
3283
3298
4128
Weather Protected
Type I (WPI)
3000
3300
6300
2598
2598
2634
2734
2734
3051
3310
3310
4094
4154
4165
4121
HA (932)
HB (1119)
HC (1305)
HD (1492)
2400
3300
4160
6900
2334
2329
2334
2679
2790
2840
2790
3178
2871
2840
2871
4126
3447
3432
3447
4277
Weather Protected
Type II (WPII)
3000
3300
6300
2644
2644
2679
2861
2861
3178
3437
3437
4221
4304
4315
4271
JA (932)
JB (1119)
JC (1305)
JD (1492)
2400
3300
4160
6900
2587
2583
2587
2933
3060
3110
3060
3448
3141
3110
3141
4446
3760
3745
3760
4590
Totally Enclosed
Water-To-Air Cooled
(TEWAC)
3000
3300
6300
2898
2898
2933
3131
3131
3448
3707
3707
4490
4617
4628
4584
13
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Table 11 — Marine Waterbox Cover Weights*
DESIGN MAXIMUM WATER PRESSURE
COOLER
CONDENSER
HEAT EXCHANGER
SIZE
psi
150
300
150
300
150
300
kPa
1034
2068
1034
2068
1034
2068
lb
kg
756
1034
1015
1389
—
lb
kg
495
651
579
754
746
1018
1667
2280
2236
3060
—
1092
1436
1275
1660
1643
2243
31 - 33
41 - 48
51 - 57
—
—
*Heat exchangers with marine waterboxes have heavier dry and operating weights than heat exchangers with nozzle-
in-head waterboxes.
Table 12 — NIH Waterbox Cover Weights*
DESIGN MAXIMUM WATER PRESSURE
COOLER
CONDENSER
HEAT EXCHANGER
SIZE
PASSES
psi
150
300
150
300
150
300
150
300
150
300
150
300
150
300
150
300
150
300
kPa
lb
kg
lb
kg
—
1034
2068
1034
2068
1034
2068
1034
2068
1034
2068
1034
2068
1034
2068
1034
2068
1034
2068
1880
853
—
1
2
2748 1247
2168 983
3107 1409
2105 955
—
—
1356
1959
1283
1828
1735
2510
1885
2590
1777
2539
2032
2940
2649
3640
—
615
889
582
829
788
1140
856
1176
807
1153
923
1335
1203
1653
—
31 - 33
41 - 48
51 - 57
3
2991 1357
2997 1361
4225 1918
2984 1355
4188 1901
3035 1378
4244 1927
1
2†
3
—
—
—
—
—
—
—
—
—
—
—
—
1
2†
3
—
—
NIH
—
Nozzle-in-Head
*The 150 psig (1034 kPa) 2-pass waterbox cover weights are included in the dry weight shown in Table 1.
†Two different waterbox covers are present on 2-pass machines. The weight shown in this table represents the weight
of the waterbox cover that contains the nozzles. A blank waterbox cover is also present on 2-pass units. The weight
of the blank waterbox cover is identical to the weight of the same size marine waterbox cover. Refer to Table 11.
3. Grout must extend above the base of the soleplate and
Install Machine Supports
there must be no voids in grout beneath the plates.
INSTALL STANDARD ISOLATION — Figures 10 and 11
show the position of support plates and shear flex pads, which
together form the standard machine support system.
4. Allow grout to set and harden, per manufacturer’s in-
structions, before starting machine.
5. Remove jacking screws from leveling pads after grout has
hardened.
INSTALL OPTIONAL ISOLATION (if required) — Un-
even floors or other considerations may dictate the use of
soleplates and leveling pads. Refer to Fig. 10 and 11.
Level machine by using jacking screws in isolation sole-
plates. Use a level at least 24 in. (600 mm) long.
For adequate and long lasting machine support, proper grout
selection and placement is essential. Carrier recommends that
only pre-mixed, epoxy-type, non-shrinking grout be used for
machine installation. Follow manufacturer’s instructions in
applying grout.
1. Check machine location prints for required grout
thickness.
INSTALL SPRING ISOLATION — Field-supplied spring
isolators may be placed directly under machine support plates
or be located under machine soleplates. Consult job data for
specific arrangement. Low profile spring isolation assem-
blies are recommended so that the machine is kept at a con-
venient working height inside of the tube sheet.
Obtain specific details on spring mounting and machine
weight distribution from job data. Also, check job data for
methods for supporting and isolating pipes that are attached
to the spring-isolated machines.
2. Carefully wax jacking screws for easy removal from grout.
14
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COOLER SIZES 31-33 AND 41-44
DIMENSIONS
COOLER SIZES
A
B
C
ft-in.
8-81⁄2
9-3
mm
2654
2819
ft-in.
8-10
9- 41⁄2
mm
2692
2858
ft-in.
4- 8
4-111⁄4
mm
1422
1505
31-33
41-44
COOLER SIZES 45-48
NOTES:
1. Dimensions in ( ) are in mm.
2. 1 inch = 25.4 mm.
3. All dimensions approximately ±
1
⁄
2
inch.
Fig. 10 — Machine Contact Surfaces
15
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SOLEPLATE ISOLATION
TYPICAL ISOLATION
ACCESSORY ISOLATION
SOLEPLATE DETAIL
SECTION A-A
NOTES:
1. Dimensions in ( ) are in millimeters.
2. Accessory soleplate package includes 4 soleplates, 16 jacking screws and leveling pads. Requires
isolation package.
3. Jacking screws to be removed after grout has set.
4. Thickness of grout will vary, depending on the amount necessary to level chiller. Use only pre-mixed
non-shrinking grout, Celcote HT-648 or Master Builders 636, 0Ј-11⁄2Љ (38.1) to 0Ј-21⁄4Љ (57) thick.
STANDARD ISOLATION
VIEW B-B
ISOLATION WITH ISOLATION PACKAGE ONLY
(STANDARD)
NOTE: Isolation package includes 4 shear flex pads.
Fig. 11 — Machine Vibration Isolation
16
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10 pipe diameters from the waterbox nozzle. For thor-
ough mixing and temperature stabilization, wells in the
leaving water pipe should extend inside pipe at least
2 in. (50 mm).
Connect Piping
INSTALL WATER PIPING TO HEAT EXCHANGERS —
Install piping using job data, piping drawings, and proce-
dure outlined below. A typical piping installation is shown
in Fig. 12.
3. Install air vents at all high points in piping to remove air
and prevent water hammer.
4. Install pipe hangers where needed. Make sure no weight
or stress is placed on waterbox nozzles or flanges.
5. Water flow direction must be as specified in Fig. 13.
Factory-supplied insulation is not flammable but can be
damaged by welding sparks and open flame. Protect in-
sulation with a wet canvas cover.
NOTE: Entering water is always the lower of the 2 nozzles.
Leaving water is always the upper nozzle for cooler or
condenser.
6. Water flow switches must be of vapor-tight construction
and must be installed on top of pipe in a horizontal run
and at least 5 pipe diameters from any bend.
Remove chilled and condenser water sensors before
welding connecting piping to water nozzles. Refer to
Fig. 2 and 3. Replace sensors after welding is complete.
Differential pressure type flow switches may be con-
nected at the nozzle of the waterbox.
1. If the machine is a nozzle-in-head (NIH) arrangement,
offset pipe flanges to permit removal of waterbox cover
for maintenance and to provide clearance for pipe clean-
ing. See Tables 11 and 12 for waterbox cover weights.
No flanges are necessary with marine waterboxes; how-
ever, water piping should not cross in front of the water-
box or access will be blocked off.
7. Install waterbox vent and drain piping in accordance with
3
individual job data. All connections are ⁄4-in. FPT.
8. Install waterbox drain plugs in the unused waterbox drains
and vent openings.
9. Install water piping to the optional pumpout system con-
denser storage tank as shown in Fig. 14.
2. Provide openings in water piping for required pressure
gages and thermometers. Openings should be at least 6 to
LEGEND
COM
N.O.
—
—
Common
Normally Open
*Do not locate pressure connections past the machine isolation valve.
Fig. 12 — Typical Nozzle Piping
17
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NOZZLE-IN-HEAD WATERBOXES
COOLER WATERBOX
Arr.
Pass
1
In
Out
Code
8
5
7
4
7
4
5
8
9
6
6
9
A
B
C
D
E
F
2
3
CONDENSER WATERBOX
Arr.
Pass
1
In
Out
Code
11
2
2
11
12
3
P
Q
R
S
T
10
1
2
10
1
3
3
12
U
NOTES:
1. Frame 5 condenser available in 1 and 2
pass only. Frame 3 in 2 and 3 pass only.
2. The vents for these waterboxes, located
in the covers are 1 in. FPT at the top of
each box, and the drains are 1 in. FPT, at
the bottom.
3. Victaulic connections are standard.
4. Flanged waterbox connections are
optional.
FRAME 3 AND 5 MARINE WATERBOXES
COOLER WATERBOX
Arr.
Pass
1
In
Out
Code
8
5
5
8
A
B
C
D
G
E
F
7
9
2
3
4
6
16
7
17
6
4
9
CONDENSER WATERBOX
Arr.
Pass
2
In
Out
Code
10
1
12
3
R
S
Y
T
13
10
1
15
3
3
12
U
NOTES:
1. Frame 3 condenser available in 2 and 3
pass only. Frame 5 condenser available in
2 pass only.
2. The vents for these waterboxes are
1 in. FPT at the top of each box, and the
drains are 1 in. FPT, at the bottom.
3. Victaulic connections are standard.
4. Flanged waterbox connections are
optional.
Fig. 13 — Nozzle Arrangements
18
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FRAME 4 MARINE WATERBOXES
COOLER WATERBOX
Arr.
Pass
1
In
Out
Code
8
5
5
8
A
B
C
D
G
E
F
7
9
2
3
4
6
16
7
17
6
4
9
CONDENSER WATERBOX
Arr.
Pass
1
In
Out
Code
11
2
2
11
12
3
P
Q
R
S
Y
T
10
1
2
3
13
10
1
15
3
12
U
NOTES:
1. The vents for these waterboxes are 1 in. FPT at the top of each box. The
drains are 1 in. FPT, at the bottom.
2. Victaulic connections are standard.
3. Flanged connections are optional.
Fig. 13 — Nozzle Arrangements (cont)
City water must be clean and noncorrosive. Water side
erosion or corrosion of the oil cooler coil may lead to
extensive machine damage not covered by the standard
warranty.
If water from the machine chilled water circuit is used for
oil cooling, it should enter the oil cooler from the entering
water line of the machine cooler. Water leaving the oil cooler
should connect to the leaving water line of the machine cooler
at a point downstream from the chilled water sensor, so that
oil cooler leaving water temperature does not affect the sen-
sor readings.
Locate the oil cooler leaving water connection at some
distance from any water temperature indicators. On single-
pass machines, water leaving the oil cooler should be con-
nected into the suction side of the chilled water pump so that
adequate pressure drop is assured for oil cooling.
The nominal conditions for oil cooler water flow are:
Flow rate . . . . . . . . . . . . . . . . . . . . . . . 30 gpm (1.9 L/s)
Leaving temperature . . . . . . . . 85 to 100 F (29 to 38 C)
Pressure drop at oil cooler . . . . . . . 7.25 psid (50 kPad)
Max differential pressure across closed
Fig. 14 — Pumpout Unit
solenoid valve . . . . . . . . . . . . . . 150 psid (1034 kPad)
The oil cooler connections are 11⁄4 in. FPT.
INSTALL WATER TO OIL COOLER ON FA COMPRE-
SORS — On FA compressors, water must be piped to the oil
cooler heat exchanger (located under the suction pipe to the
compressor). The water supply may be either city water or
chilled water. Pipe city water to an open sight drain. Chilled
water enters via the cooling entering water intake (Fig. 15).
19
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Fig. 16 — Typical 17/19EX Utility Vessel
Relief Valve Tee
Fig. 15 — Water Piping, Oil Cooler to
Chilled Water Circuit (Typical)
Do not run 120-v wiring into the control center. The
control center should only be used for additional extra
low-voltage wiring (50 v maximum).
INSTALL VENT PIPING TO RELIEF DEVICES — The
17/19EX chiller is factory equipped with relief devices on
the cooler and utility vessels. Refer to Fig. 2 and 3, and
Table 13 for size and location of relief devices, as well as
information that will help determine pipe size. Vent relief
devices to the outdoors in accordance with ASHRAE 15
(latest edition) Safety Code for Mechanical Refrigeration and
all other applicable codes. To ensure relief valve serviceabil-
ity, and as required in ASHRAE 15, latest edition, 3-way
dual shutoff valves and redundant relief valves are installed
on the economizer/storage vessel, refer to Fig. 16.
Wiring diagrams in this publication (Fig. 17-23) are for
reference only and are not intended for use during actual in-
stallation; follow job specific wiring diagrams.
Specific electrical ratings for individual components are
shown in Table 14.
Do not attempt to start compressor or oil pump — even
for a rotation check — or apply test voltage of any kind
while machine is under dehydration vacuum. Motor in-
sulation breakdown and serious damage may result.
NOTE: The 3-way dual shutoff valve should be either front
seated or back seated. Running the refrigeration system with
the valve stem in the center position can reduce total relief
capacity and cause valve chattering.
CONNECT CONTROL INPUTS — Connect the control in-
put wiring from the chilled and condenser water flow switches
to the starter terminal strip. Wiring may also be specified for
a spare safety switch, and a remote start/stop contact can be
wired to the starter terminal strip, as shown in Fig. 17 and
18. Additional spare sensors and Carrier Comfort Network
modules may be specified as well. These are wired to the
machine control center as indicated in Fig. 22 and 23.
Refrigerant discharged into confined spaces can dis-
place oxygen and cause asphyxiation.
1. If relief device piping is manifolded, the cross-sectional
area of the relief pipe must at least equal the sum of the
areas required for individual relief pipes.
2. Provide a pipe plug near outlet side of each relief device
for leak testing. Provide pipe fittings that allow vent pip-
ing to be disconnected periodically for inspection of valve
mechanism.
CONNECT CONTROL OUTPUTS — Connect auxiliary
equipment, chilled and condenser water pumps, and spare
alarms as required and indicated on job wiring drawings.
Connect Starter — Assemble and install compressor termi-
nal box in desired orientation, and cut necessary conduit open-
ings in conduit support plates. Attach power leads to com-
pressor terminals in accordance with job wiring drawings,
observing caution label in terminal box. Use only copper con-
ductors. The motor must be grounded in accordance with
NEC (National Electrical Code), applicable local codes, and
job wiring diagrams.
3. Piping to relief devices must not apply stress to the
device. Adequately support piping. A length of flexible
tubing or piping near the device is essential on spring-
isolated machines.
4. Cover the outdoor vent with a rain cap and place a con-
densation drain at the low point in the vent piping to pre-
vent water build-up on the atmospheric side of the relief
device.
IMPORTANT: Do not insulate terminals until wiring
arrangement has been checked and approved by
Carrier start-up personnel. Also, make sure correct phas-
ing is followed for proper motor rotation.
Make Electrical Connections — Field wiring must
be installed in accordance with job wiring diagrams and all
applicable electrical codes.
20
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Insulate Motor Terminals and Lead Wire Ends — Insulate
compressor motor terminals, lead wire ends, and electrical
wires to prevent moisture condensation and electrical arc-
ing. For low-voltage units (up to 600 v), insulate the elec-
trical terminals as follows:
Connect Power Wires to Oil Heater Contactor — Connect
control power wiring between the oil heater contactor ter-
minals (Fig. 17 and 18) and terminals LL1 and LL2 on the
field wiring strip in the compressor motor starter. Refer to
Fig. 21 and wiring label on the chiller power panel.
1. Insulate each terminal by wrapping with one layer of
insulation putty.
2. Overwrap putty with 4 layers of vinyl tape.
High-voltage units require special terminal preparation. The
vinyl tape is not acceptable; a high voltage tape must be used.
Installer is responsible for any damage caused by improper
wiring between starter and compressor motor.
Voltage to terminals LL1 and LL2 comes from a con-
trol transformer in a starter built to Carrier specifica-
tions. Do not connect an outside source of control power
to the compressor motor starter (terminals LL1 and LL2).
An outside power source will produce dangerous volt-
age at the line side of the starter, because supplying volt-
age at the transformer secondary terminals produces in-
put level voltage at the transformer primary terminals.
Connect Power Wires to Oil Pump Contactor — Connect power
wires to oil pump contactor mounted in machine power panel.
(See Fig. 19.) Use the electrical disconnect located in the
machine starter (if supplied), or a separate fused disconnect
as shown on job wiring diagrams. Check that power supply
voltage agrees with oil pump voltage. Follow correct phas-
ing for proper motor rotation.
Connect Communication and Control Wiring from Starter to
Power Panel — Connect control wiring from main motor starter
to the chiller power panel. All control wiring must use shielded
cable. Also connect the communications cable. Make sure
the control circuit is grounded in accordance with applicable
electrical codes and instructions on chiller control wiring
label.
Do not wire into the top surface of the power panel. Knock-
outs are provided on the underside of the panel.
Table 13 — Relief Valve Locations and Data
HEAT EXCHANGER
SIZE
RATED RELIEF
REQUIRED C FACTOR
RELIEF VALVE
LOCATION
NOMINAL OUTLET
PIPE SIZE (in.)
NUMBER OF
VALVES
PRESSURE
Cooler Condenser lb air/min. kg air/sec.
psig
kPa
1551
1551
1551
1551
1551
1551
1551
2655
31-33
41-43
44
31-33
41-43
51-53
45-47
55-57
ALL
139.7
158.8
164.6
216.3
228.5
64.2
1.06
1.20
1.24
1.64
1.73
0.49
0.64
0.01
11⁄4 FPT
11⁄4 FPT
11⁄4 FPT
11⁄4 FPT
11⁄4 NPT
11⁄4 NPT
11⁄4 FPT
2
225
225
225
225
225
225
225
385
2
Cooler
2
45-47
48
3
3
41-44
45-48
ALL
2*
2*
1
Economizer/Storage
Vessel
ALL
84.3
3
Pumpout Unit Condenser
ALL
1.5
⁄
8
in. Male Flare MPT
*To ensure relief valve serviceability, and as required in ASHRAE 15,
latest edition, three-way valves and redundant relief valves are in-
stalled on the storage vessel. Only one half of the ‘‘No. of Valves’’
listed are in service at any time.
2. Relief valve discharge pipe sizing is to be calculated per latest
version of ASHRAE 15, using the tabulated C-factors and nom-
inal pipe size listed above. Cooler and economizer/storage ves-
sel rated relief valve pressure is 225 psig (1551 kPa).
3. The pumpout unit condenser contains less than 110 lb (50 kg) of
HFC-134a, which is a GroupA1 refrigerant. TheASHRAE 15 stand-
ard exempts small-volume vessels from the requirement to vent
outside. However, Carrier recommends that the pumpout con-
denser be connected to the rest of the vent system.
NOTES:
1. The cooler relief C-factor is for both cooler and condenser vented
through the cooler in accordance with ASHRAE (American
Society of Heating, Refrigeration, and Air Conditioning Engi-
neers) 15, latest edition.
21
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Table 14 — Individual Component Ratings
DESIGN CENTER
AVERAGE kW
SUPPLY
V-PH-HZ
POWER SOURCE
ITEM
FLA
4.78
4.35
3.50
8.70
LRA
21.7
4.35
—
VOLTAGE
Seal Leakage
Pump
0.23
0.50
0.40
1.00
115
115
115
115
115-1-50/60
115-1-50/60
1*
(17EX Only)
Motor Space
Heater
Control Module
and Actuator
115-1-60
115-1-50
1†
115-1-60
115-1-50
Oil Sump Heater
—
1.35
1.30
1.37
220
430
563
200/240-3-60
380/480-3-60
507/619-3-60
4.32
2.15
2.13
24.5
12.2
25.0
2†
Oil Pump
1.49
1.49
230
393
220/240-3-50
346/440-3-50
4.83
2.59
28.0
12.2
Hot Gas
Bypass
1**
0.20
115
115-1-50/60
2.00
4.75
204
230
460
575
200/208-3-60
220/240-3-60
440/480-3-60
550/600-3-60
10.90
9.50
4.70
3.80
63.5
57.5
28.8
23.0
3**
(Optional)
Pumpout
Compressor
3.41
400
380/415-3-50
4.70
28.8
LEGEND
NOTE: The oil pump is powered through a field wiring terminal into
the power panel. Power to the controls and oil heater via the power
panel must be on circuits that can provide continuous service when
the compressor starter is disconnected.
FLA
LRA
—
—
Full Load Amps
Locked Rotor Amps
*Available for 17EX machines only.
†Available for 17/19EX machines.
**Available as an option on 17/19EX machines.
22
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LEGEND
Required Power Wiring
Required Control Wiring
Options Wiring
Starter Management Module
SMM
—
*Indicates chilled water pump control contacts or run status contacts.
†Indicates condenser water pump control contacts.
**Indicates tower fan relay contacts.
††Indicates circuit breaker shunt trip contacts.
Indicates remote alarm contacts.
NOTES:
3.4 Do not route control wiring carrying 30 v or less within a conduit which has wires
carrying 50 v or higher or along side wires carrying 50 v or higher.
3.5 Voltage selector switch in machine power panel is factory set for 115 v control power
source. Do not use the 230 v position. If this switch is set to 230 v position, the oil
heater will not operate.
3.6 Control wiring cables between starter and power panel must be shielded with mini-
mum rating of 600 v, 80 C ground shield at starter. Wires A,B, and C are commu-
nication wires and must be run in a separate cable.
3.7 If optional oil pump circuit breaker is not supplied within the starter enclosure as
shown, it must be located within sight of the machine with wiring routed to suit.
3.8 Voltage to terminals LL1 and LL2 comes from a control transformer in a starter built
to Carrier specifications. Do not connect an outside source of control power to the
compressor motor starter (terminals LL1 and LL2). An outside power source will
produce dangerous voltage at the line side of the starter, because supplying voltage
at the transformer secondary terminals produces input level voltage at the trans-
former primary terminals.
I. GENERAL
1.0 Starters shall be designed and manufactured in accordance with Carrier Engineer-
ing Requirement Z-375.
1.1 All field-supplied conductors, devices, field-installation wiring, and termination of con-
ductors and devices, must be in compliance with all applicable codes and job speci-
fications.
1.2 The routing of field-installed conduit and conductors and the location of field-
installed devices must not interfere with equipment access or the reading, adjusting,
or servicing of any component.
1.3 Equipment, installation, and all starting and control devices must comply with de-
tails in equipment submittal drawings and literature.
1.4 Contacts and switches are shown in the position they would assume with the circuit
deenergized and the chiller shut down.
1.5 WARNING — Do not use aluminum conductors.
1.6 Installer is responsible for any damage caused by improper wiring between starter
and machine.
IV. POWER WIRING BETWEEN STARTER AND COMPRESSOR MOTOR
4.0 Low voltage (600 v or less) compressor motors have (6), 5
in. terminal studs (lead
⁄8
II. POWER WIRING TO STARTER
connectors not supplied by Carrier). Either 3 or 6 leads must be run between com-
pressor motor and starter, depending on type of motor starter employed. If only 3
leads are required, jumper motor terminals as follows: 1 to 6, 2 to 4, 3 to 5. Center
to center distance between terminals is 215⁄16 inches. Compressor motor starter must
have nameplate stamped as to conforming with Carrier requirement Z-375. Medium
voltage (over 600 v) compressor motors have (3) terminals. Connections out of ter-
minals are 3 in. long stranded wire pigtails, #4 AWG, strand wire for all medium
voltage motor sizes. Distance between terminal is 79⁄16 inches. Use suitable splice
connectors and insulation for high voltage alternating current cable terminations (these
items are not supplied by Carrier). Compressor motor starter must have nameplate
stamped as to conforming with Carrier requirement Z-375.
2.0 Power conductor rating must meet minimum unit nameplate voltage and compres-
sor motor RLA.
When (3) conductors are used:
Minimum ampacity per conductor = 1.25 x compressor RLA
When (6) conductors are used for Wye-Delta starting:
Minimum ampacity per conductor = 0.721 x compressor RLA
2.1 Lug adapters may be required if installation conditions dictate that conductors be
sized beyond the minimum ampacity required. Contact starter supplier for lug
information.
2.2 Compressor motor and controls must be grounded by using equipment grounding
lugs provided inside starter enclosure.
4.1 When more than one conduit is used to run conductors from starter to compressor
motor terminal box, one conductor from each phase must be in each conduit to
prevent excessive heating. (e.g., conductors to motor terminals 1, 2 and 3 in one
conduit, and those to 4, 5 and 6 in another.)
4.2 Compressor motor power connections can be made through top, top rear or sides
of compressor motor terminal box using holes cut by contractor to suit conduit. Flex-
ible conduit should be used for the last few feet to the terminal box for unit vibration
isolation. Use of stress cones or 12 conductors larger than 500 MCM may require
an oversize (special) motor terminal box (not supplied by Carrier). Lead connec-
tions between 3-phase motors and their starters must not be insulated until Carrier
personnel have checked compressor and oil pump rotations.
4.3 Compressor motor frame to be grounded in accordance with the National Electrical
Code (NFPA-70) and applicable codes. Means for grounding compressor motor is
a pressure connector for #4 to 500 MCM wire, supplied and located in the back
lower left side corner of the compressor motor terminal box.
4.4 Do not allow motor terminals to support weight of wire cables. Use cable supports
and strain reliefs as required.
4.5 Use backup wrench when tightening lead connectors to motor terminal studs. Torque
to 45 lb-ft max.
III. CONTROL WIRING
3.0 Field supplied control conductors to be at least 18 AWG or larger.
3.1 Chilled water and condenser water flow switch contacts, optional remote start de-
vice contacts and optional spare safety device contacts must have 24 vdc rating.
Max current is 60 ma, nominal current is 10 ma. Switches with gold plated bifur-
cated contacts are recommended.
3.2 Remove jumper wire between 12A and 12B before connecting auxiliary safeties be-
tween these terminals.
3.3 Pilot relays can control cooler and condenser pump and tower fan motor contactor
coil loads rated 10 amps at 115 vac up to 3 amps at 600 vac. Control wiring required
for Carrier to start pumps and tower fan motors must be provided to assure
machine protection. If primary pump and tower fan motor are controlled by other
means, also provide a parallel means for control by Carrier. Do not use starter con-
trol transformer as the power source for pilot relay loads.
Fig. 17 — Typical Field Wiring (Low-Voltage Motors) with Free-Standing Starter
23
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24
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NOTES:
3.4 Do not route control wiring carrying 30 v or less within a conduit which
has wires carrying 50 v or higher or along side wires carrying 50 v or
higher.
I GENERAL
1.0 Starters shall be designed and manufactured in accordance with
3.5 Voltage selector switch in machine power panel is factory set for
115 v control and oil heater power source. The 230 v position is not
used. If switch is set to 230 v position, oil heater will not operate.
3.6 Control wiring cables between starter and power panel must be shielded
with minimum rating of 600 v, 80 C. Ground shield at starter. Wires A,
B, and C are communication wires and must be run in a separate cable.
3.7 If optional oil pump circuit breaker is not supplied within the starter en-
closure as shown, it must be located within sight of the machine with
wiring routed to suit.
3.8 Voltage to terminals LL1 and LL2 comes from a control transformer in
a starter built to Carrier specifications. Do not connect an outside source
of control power to the compressor motor starter (terminals LL1 and
LL2). An outside power source will produce dangerous voltage at the
line side of the starter, because supplying voltage at the transformer
secondary terminals produces input level voltage at the transformer pri-
mary terminals.
Carrier Engineering requirement Z-375.
1.1 All field-supplied conductors, devices and the field-installation wiring,
termination of conductors and devices, must be in compliance with all
applicable codes and job specifications.
1.2 The routing of field-installed conduit and conductors and the location of
field-installed devices, must not interfere with equipment access of the
reading, adjusting, or servicing of any component.
1.3 Equipment installation and all starting and control devices must comply
with details in equipment submittal drawings and literature.
1.4 Contacts and switches are shown in the position they would assume
with the circuit deenergized and the chiller shut down.
1.5 WARNING: Do not use aluminum conductors.
1.6 Installer is responsible for any damage caused by improper wiring be-
tween starter and machine.
II POWER WIRING TO STARTER
2.0 Power conductor rating must meet minimum unit nameplate voltage
and compressor motor RLA (rated load amps). When (3) conductors
are used:
IV POWER WIRING BETWEEN STARTER AND COMPRESSOR MOTOR
4.0 Medium voltage (over 600 volts) hermetic compressor motors have
3 terminals. Use no. 4 AWG strand wires for all medium and high volt-
age hermetic motors. Distance between terminal is 79⁄16 inches. Use
suitable splice connectors and insulation for high-voltage alternating
current cable terminations (these items are not supplied by Carrier).
Compressor motor starter must have nameplate stamped as to con-
forming with Carrier requirement Z-375. Medium voltage open motors
have lug terminations (see certified drawings for size).
Minimum ampacity per conductor =1.25 x compressor RLA
When (6) conductors are used:
Minimum ampacity per conductor =0.721 x compressor RLA.
2.1 Lug adapters may be required if installation conditions dictate that con-
ductors be sized beyond the minimum ampacity required. Contact starter
supplier for lug information.
2.2 Compressor motor and controls must be grounded by using equip-
ment grounding lugs provided inside starter enclosure.
4.1 When more than one conduit is used to run conductors from starter to
compressor motor terminal box, one conductor from each phase must
be in each conduit, to prevent excessive heating, (e.g., conductors to
motor terminals 1, 2, and 3 in one conduit, and those to 1, 2, and 3 in
another).
4.2 Compressor motor power connections can be made through top, top
rear, or sides of compressor motor terminal box by using holes cut by
contractor to suit conduit. Flexible conduit should be used for the last
few feet to the terminal box for unit vibration isolation. Use of stress
cones may require an oversize (special) motor terminal box (not sup-
plied by Carrier).
4.3 Compressor motor frame to be grounded in accordance with the Na-
tional Electrical Code (NFPA-70) and applicable codes. Means for ground-
ing compressor motor is a no. 4 AWG, 500 MCM pressure connector,
supplied and located in the lower left side corner of the compressor
motor terminal box.
4.4 Do not allow motor terminals to support weight of wire cables, use
cable supports and strain reliefs as required.
III CONTROL WIRING
3.0 Field supplied control conductors to be at least 18 AWG (American Wire
Gage), or larger.
3.1 Chilled water and condenser water flow switch contacts, optional re-
mote start device contacts, and optional spare safety device contacts
must have 24 vdc rating. Maximum current is 60 ma, nominal current
is 10 ma. Switches with gold plated bifurcated contacts are
recommended.
3.2 Remove jumper wire between 12A and 12B before connecting auxiliary
safeties between these terminals.
3.3 Maximum load on pilot relays is 10 amps. Pilot relays can control cooler
and condenser pump and tower fan motor contactor coil loads rated up
to 10 amps at 115 vac or up to 3 amps at 600 vac. Control wiring re-
quired for Carrier to start pumps and tower fan motors must be pro-
vided to assure machine protection. If primary pump and tower motor
control is by other means, also provide a parallel means for control by
Carrier. Do not use starter control transformer as the power source for
pilot relay loads.
Fig. 18 — Field Wiring (High Voltage Motors) with Optional Free-Standing Starter (cont)
25
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LEGEND
Factory Wiring
Field Wiring
Oil Pump Terminal
Power Panel Component Terminal
Fig. 19 — Oil Pump Wiring
19EX SHOWN
LEGEND
NOTES:
1. Wiring and piping shown are for general point-of-connection only
1
2
3
4
5
6
7
8
9
—
—
—
—
—
—
—
—
—
Chilled Water Pump Starter
Condenser Water Pump Starter
Cooling Tower Fan Starter
Condenser Water Pump
Chilled Water Pump
and are not intended to show details for a specific installation. Cer-
tified field wiring and dimensional diagrams are available on re-
quest.
2. All wiring must comply with applicable codes.
3. Refer to Carrier System Design Manual for details regarding pip-
ing techniques.
Disconnect
Oil Pump Disconnect (See Note 5)
Free-Standing Compressor Motor Starter
Chiller Auxiliary Power Panel
Piping
4. Wiring not shown for optional devices such as:
• Remote Start-Stop
• Remote Alarms
• Optional Safety Device
Control Wiring
Power Wiring
• 4 to 20 mA Resets
• Optional Remote Sensors
5. Oil pump disconnect may be located within the enclosure of Item
8 — Free-Standing Compressor Motor Starter.
6. Water piping to the oil cooler is required on FA compressors.
Fig. 20 — 17/19EX with Free-Standing Starter
26
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temperature range of −4 F to 140 F (−20 C to 60 C) is
required. See table below for cables that meet the
requirements.
MANUFACTURER
Alpha
CABLE NO.
2413 or 5463
A22503
American
Belden
8772
Columbia
02525
LEGEND
Field Wiring
When connecting the CCN communication bus to a sys-
tem element, a color code system for the entire network is
recommended to simplify installation and checkout. The fol-
lowing color code is recommended:
Power Panel Component Terminal
Fig. 21 — Oil Heater and Control Power Wiring
CCN BUS CONDUCTOR
INSULATION COLOR
COMM1 PLUG
PIN NO.
SIGNAL TYPE
+
Ground
−
Red
White
Black
1
2
3
If a cable with a different color scheme is selected, a
similar color code should be adopted for the entire network.
At each system element, the shields of its communication
bus cables must be tied together. If the communication bus
is entirely within one building, the resulting continuous shield
must be connected to ground at only one single point. See
Fig. 23. If the communication bus cable exits from one build-
ing and enters another, the shields must be connected to ground
at the lightning suppressor in each building where the cable
enters or exits the building (one point only).
To connect the 17/19EX chiller to the network, proceed
as follows (Fig. 23):
1. Cut power to the PIC (Product Integrated Control) panel.
2. Remove the COMM1 plug from the processor module.
3. Cut a CCN wire and strip the ends of the RED, WHITE,
and BLACK conductors.
Fig. 22 — Carrier Comfort Network
Communication Bus Wiring
4. Using a wirenut, connect the drain wires together.
CARRIER COMFORT NETWORK INTERFACE — The
Carrier Comfort Network (CCN) communication bus wiring
is supplied and installed by the electrical contractor (if re-
quired by jobsite prints). It consists of shielded, 3-conductor
cable with drain wire.
The system elements are connected to the communication
bus in a daisy chain arrangement. The positive pin of each
system element communication connector must be wired to
the positive pins of the system element on either side of it.
The negative pins must be wired to the negative pins. The
signal ground pins must be wired to the signal ground pins.
See Fig. 23 for location of the CCN network connector
(COMM1) on the processor module.
NOTE: Conductors and drain wire must be 20 AWG
(American Wire Gage) minimum stranded, tinned copper. In-
dividual conductors must be insulated with PVC, PVC/
nylon, vinyl, Teflon, or polyethylene. An aluminum/ poly-
ester 100% foil shield and an outer jacket of PVC, PVC/
nylon, chrome vinyl, or Teflon with a minimum operating
5. Insert and secure the RED wire to Terminal 1 of the
COMM1 plug.
6. Insert and secure the WHITE wire to Terminal 2 of the
COMM1 plug.
7. Insert and secure the BLACK wire to Terminal 3 of the
COMM1 plug.
8. Attach the COMM1 plug back onto the processor
module.
9. Mount a terminal strip in a convenient location.
10. Connect the opposite ends of each conductor to separate
terminals on the terminal strip.
11. Attach the CCN Network wiring:
a. Connect the RED wire to the matching location on
the terminal strip.
b. Connect the WHITE wire to the matching location
on the terminal strip.
c. Connect the BLACK wire to the matching location
on the terminal strip.
27
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Table 15 — Insulation Requirements
Install Field Insulation
Sheet Foam Insulation
2
ft
2
COMPONENT
Cooler Shell (Sizes 31-33)
m
Protect insulation from weld heat damage and weld splat-
ter. Cover with wet canvas cover during water piping
installation.
254
306
374
48
23.6
28.4
34.7
4.5
Cooler Shell (Sizes 41-44)
Cooler Shell (Sizes 45-48)
Economizer Low Side Float Chamber
Economizer Main Shell (with cooler sizes 31-44)
Economizer Main Shell (with cooler sizes 45-48)
Suction Line
When installing insulation at the job site, insulate the fol-
lowing components (see Fig. 24 and Table 15):
• compressor motor
• cooler shell
• cooler tube sheets
• suction piping
• motor cooling drain
• oil cooler refrigerant side tubing
• utility vessel (low side)
Additional insulation of condenser and compressor com-
ponents and lines may be necessary to prevent condensation
on these components.
NOTE: Carrier does not provide waterbox insulation. Insu-
lation of the waterbox covers must be field supplied at the
jobsite. When insulating the waterbox covers, allow enough
room for removal of the waterbox covers during servicing.
85
7.9
115
25
10.1
2.3
Cooler Marine Waterbox (1 or 3 pass, with
frame-3 coolers)
126
100
158
123
11.7
9.3
Cooler Marine Waterbox (2 pass, with
frame-3 coolers)
Cooler Marine Waterbox (1 or 3 pass, with
frame-4 coolers)
14.7
11.4
Cooler Marine Waterbox (2 pass, with
frame-4 coolers)
Cooler NIH Waterbox (with frame-3 coolers)
Cooler NIH Waterbox (with frame-4 coolers)
74
88
6.9
8.2
Main Motor Shell (with −51 through −89
compressors)
27
2.5
Main Motor Shell (with 421 through 469 compressors)
Main Motor Shell (with 531 through 599 compressors)
27
41
2.5
3.8
Foam Tubing Insulation
TYPE
Ft
9
m
11⁄8؆ Foam Tubing
15⁄8؆ Foam Tubing
2؆ Foam Tubing
5؆ Foam Tubing
2.7
0.6
2.7
4.3
FACTORY INSULATION (OPTIONAL) — Optional
factory insulation is available for the evaporator shell and
tube sheets, suction pipe, compressor motors, and refriger-
2
9
14
3
ant drain line(s). Insulation applied at the factory is ⁄4 in.
NOTES:
(19.0 mm) thick and has a thermal conductivity K value of
1. Cooler value includes marine waterbox on one end (even-pass
arrangement).
Btu ● in.
W
m
2. Values are approximate.
0.28
(0.0404
°C). Insulation conforms
hr ● ft2 ● °F
3. Thermal insulation is available as a factory-installed option. Waterbox in-
sulation must be field supplied.
with UL Standard 94, Classification 94 HBF.
28
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19EX CHILLERS
LEGEND
Factory Wiring
Field Wiring
*Field-supplied terminal strip must be located in the control center.
†Switches S1 and S2 are factory set on PSIO modules. Do not alter the switches.
Fig. 23 — COMM1 CCN Communication Wiring for Multiple 17/19EX Chillers (Typical)
29
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FRONT VIEW
PLAN VIEW
IMPORTANT: 17EX insulation is identical to the 19EX insulation shown
above. 17EX motors do not require insulation.
— Area must be factory or field insulated
— Area to be field insulated, if ambient conditions require.
NOTE: Waterbox covers are to be insulated by the contractor.
Fig. 24 — Typical Insulation Area (19EX Shown)
Copyright 1996 Carrier Corporation
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 2 PC 211 Catalog No. 531-749 Printed in U.S.A. Form 17/19EX-2SI Pg 30 3-96 Replaces: 17/19EX-1SI
Tab 5a 5d
2
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INSTALLATION START-UP REQUEST CHECKLIST
Machine Model Number: 17/19EX Serial Number:
To:
Date
Project Name
Carrier Job Number
Attn:
The following information provides the status of the chiller installation.
YES/NO
(N/A)
DATE TO BE
COMPLETED
1. The machine is level.
2. The machine components are installed and connected in
accordance with the installation instructions.
3. The isolation package and grouting (if necessary)
are installed.
4. The relief valves are piped to the atmosphere.
5. All piping is installed and supported. Direction of flow
is indicated in accordance with the installation instructions
and job prints.
a. Chilled water piping
b. Condenser water piping
c. Waterbox drain piping
d. Pumpout unit condenser piping (if installed)
e. Oil cooler water piping (FA compressors only)
f. Other
6. Gages are installed as called for on the job prints required
to establish design flow for the cooler and condenser.
a. Water pressure gages IN and OUT
b. Water temperature gages IN and OUT
7. The machine’s starter wiring is complete. The wiring is
installed per installation instructions and certified prints.
a. Power wiring to compressor motor. (Motor leads will
not be taped until the Carrier technician megger tests
the motor.)
b. Oil pump wiring
c. Oil heater/control wiring
d. Other
8. The motor starter has not been supplied by Carrier. It
has been installed according to the manufacturer’s
instructions.
9. The motor starter has not been supplied by Carrier and it
has been checked for proper operation.
COMMENTS:
CL-1
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DATE TO BE
COMPLETED
TESTING
YES/NO
1. The cooling tower fan has been checked for blade pitch and
proper operation.
2. The chilled water and condenser water lines have been:
a. Filled
b. Tested
c. Flushed
d. Vented
e. Strainers cleaned
3. The chilled water and condenser water pumps have been
checked for proper rotation and flow.
4. The following cooling load will be available for start-up:
a. 25%
b. 50%
c. 75%
d. 100%
5. The refrigerant charge is at the machine.
6. Services such as electrical power and control air will be avail-
able at start-up.
7. The electrical and mechanical representatives will be available
to assist in commissioning the machine.
8. The customer’s operators will be available to receive instruc-
tions for proper operation of the chiller after start-up.
Concerns about the installation/request for additional assistance:
I am aware that the start-up time for a Carrier chiller can take between 2 and 6 days depending on the model of the machine and
the options and accessories used with it.
Your contact at the job site will be
Phone number
Beeper number
Fax number
In accordance with our contract, we hereby request the services of your technician to render start-up services per contract terms
for this job on
(Date). I understand that the technician’s time will be charged as extra services due to correcting items
in this checklist that are incomplete.
Signature of Purchaser
Signature of Job Site Supervisor
Copyright 1996 Carrier Corporation
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 2
2
PC 211
Catalog No. 531-749
Printed in U.S.A.
Form 17/19EX-2SI
Pg CL-2
3-96
Replaces: 17/19EX-1SI
Tab 5a 5d
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