®
AQUASNAP
30RAP010-060
Liquid Chillers
with COMFORTLINK Controls
TM
Installation Instructions
.
CONTENTS
WARNING
Page
SAFETY CONSIDERATIONS. . . . . . . . . . . . . . . . . . . . . . 1
Electrical shock can cause personal injury and death. Shut
off all power to this equipment during installation. There
may be more than one disconnect switch. Tag all discon-
nect locations to alert others not to restore power until work
is completed.
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31
Step 1 — Rig and Place the Unit. . . . . . . . . . . . . . . . . . 1
• RIGGING
• PLACING UNIT
• MOUNTING UNIT
Step 2 — Check Compressor Mounting . . . . . . . . . . 6
Step 3 — Cooler Fluid and Drain Piping
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
• ALL UNITS
• UNITS WITH FACTORY-INSTALLED
HYDRONIC PACKAGES
• AIR SEPARATION
Step 4 — Fill the Chilled Water Loop . . . . . . . . . . . . 15
• WATER SYSTEM CLEANING
• FILLING THE SYSTEM
• PREPARATION FOR YEAR-ROUND OPERATION
• FREEZE PROTECTION
INSTALLATION
Step 1 — Rig and Place the Unit
RIGGING — Preferred method for rigging is with spreader
bars from above the unit. Use hooks in lifting holes. Rig at a
single point with 4 cables or use spreader bars. All panels must
be in place when rigging. See rigging label on unit for details
concerning shipping weights, distance between lifting holes,
center of gravity, and lifting ring dimensions. See Tables 1A
and 1B for physical data. Refer to Fig. 3 for unit weights.
See Fig. 4 for rigging label.
If overhead rigging is not possible, place chiller on skid or
pad for rolling or dragging. When rolling, use a minimum of
3 rollers. When dragging, pull the pad. Do not apply force to
the unit. When in final position, raise from above to lift unit
off pad.
• PREPARATION FOR WINTER SHUTDOWN
Step 5 — Make Electrical Connections . . . . . . . . . . 20
• POWER SUPPLY
• POWER WIRING
• FIELD CONNECTIONS
Step 6 — Install Accessories . . . . . . . . . . . . . . . . . . . . 29
• ELECTRICAL
Step 7 — Check Refrigerant Circuit . . . . . . . . . . . . . 29
• LEAK TESTING
• DEHYDRATION
• REFRIGERANT CHARGE
CAUTION
All panels must be in place when rigging. Damage to unit
could result.
PLACING UNIT — There must be at least 3 ft (0.9 m) for
service and for unrestricted airflow on all non-coil sides of unit,
and a minimum of 3.5 ft (1.1 m) clear air space on coil sides.
For multiple units, allow 8 ft (2.48 m) separation between units
for airflow and service.
APPENDIX A (Pressure Drop Curves) . . . . . . . . 32-38
SAFETY CONSIDERATIONS
Installing, starting up, and servicing air-conditioning equip-
ment can be hazardous due to system pressures, electrical
components, and equipment location (roofs, elevated struc-
tures, etc.).
Only trained, qualified installers and service mechanics
should install, start up, and service this equipment (Fig. 1).
Untrained personnel can perform basic maintenance func-
tions such as cleaning coils. All other operations should be
performed by trained service personnel.
When working on the equipment, observe precautions in the
literature and on tags, stickers, and labels attached to the
equipment.
•
•
•
Follow all safety codes.
Wear safety glasses and work gloves.
Keep quenching cloth and fire extinguisher nearby when
brazing.
•
Use care in handling, rigging, and setting bulky
equipment.
These instructions cover installation of 30RAP010-060 air-cooled
liquid chillers. Refer to Fig. 2 for model number to determine factory-
installed options.
Fig. 1 — Typical 30RAP Unit (018-030 Shown)
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53300036-01 Printed in U.S.A. Form 30RAP-1SI Pg 1 11-09 Replaces: New
STANDARD UNITS
POUNDS
C
KILOGRAMS
30RAP
SIZE
30RAP
SIZE
Total
Weight
Total
Weight
A
B
D
A
B
C
D
010
015
018
020
025
030
035
040
045
050
055
060
188
193
363
365
393
405
652
704
675
732
744
746
209
213
264
266
290
301
730
697
758
724
762
762
161
163
209
211
237
246
413
390
425
401
437
438
146
149
288
290
321
331
369
394
379
405
427
429
704
718
010
015
018
020
025
030
035
040
045
050
055
060
85.5
87.7
94.6
96.4
73.1
74.1
94.9
95.8
66.1
67.4
319.3
325.5
510.3
513.9
563.5
582.0
981.1
991.1
1015.1
1026.3
1074.6
1077.3
1125
1133
1242
1283
2163
2185
2238
2263
2369
2375
164.9
165.8
178.3
183.7
295.7
319.4
306.3
332.2
337.4
338.4
119.9
120.8
130.6
131.5
145.7
150.4
167.2
178.5
171.9
183.9
193.5
194.5
131.8 107.7
136.3 111.6
331.0 187.2
316.3 176.9
344.0 193.0
328.4 181.8
345.5 198.2
345.8 198.6
SINGLE PUMP UNITS
POUNDS
C
KILOGRAMS
30RAP
SIZE
30RAP
SIZE
Total
Weight
Total
Weight
A
B
D
A
B
C
D
010
015
018
020
025
030
035
040
045
050
055
060
215
220
404
406
434
446
740
791
763
819
831
833
264
268
306
308
332
342
814
783
843
810
847
848
213
215
249
251
277
286
499
475
512
486
522
523
174
177
329
331
362
372
453
480
463
491
512
514
866
880
010
015
018
020
025
030
035
040
045
050
055
060
97.6
99.8
119.8
96.7
97.7
78.9
80.2
393.0
399.3
121.6
1288
1296
1405
1446
2507
2529
2582
2606
2713
2719
183.4
184.3
196.9
202.2
335.6
358.8
346.3
371.6
376.9
378.0
138.7 112.8
139.6 113.7
150.5 125.6
155.1 129.5
369.4 226.3
355.3 215.4
382.3 232.1
367.4 220.4
384.3 236.9
384.6 237.3
149.2
150.1
164.2
168.9
205.6
217.5
210.2
222.9
232.3
233.3
584.0
587.6
637.2
655.7
1137.0
1147.0
1171.0
1182.2
1230.5
1233.2
DUAL PUMP UNITS
POUNDS
C
KILOGRAMS
30RAP
SIZE
30RAP
SIZE
Total
Weight
Total
Weight
A
B
D
A
B
C
D
010
015
018
020
025
030
035
040
045
050
055
060
242
247
445
447
475
487
828
878
851
906
918
920
319
323
347
349
373
383
899
869
928
896
933
933
266
268
288
290
316
325
585
560
598
571
607
608
202
205
370
372
403
413
538
565
548
577
598
600
1029
1043
1450
1458
1567
1608
2850
2872
2925
2950
3056
3062
010
015
018
020
025
030
035
040
045
050
055
060
109.9
112.1
202.0
202.9
215.5
220.8
375.5
398.2
386.2
411.0
416.4
417.5
144.8 120.5
146.6 121.4
157.4 130.7
158.3 131.6
169.2 143.5
173.8 147.4
407.9 265.3
394.2 254.0
420.8 271.1
406.4 258.9
423.2 275.6
423.4 276.0
91.5
92.8
466.7
473.0
167.7
168.6
182.7
187.3
244.2
256.5
248.8
261.8
271.2
272.1
657.7
661.3
710.9
729.4
1292.9
1302.9
1326.9
1338.1
1386.3
1389.1
30RAP035-060 UNITS
30RAP010-030 UNITS
B
C
B
C
CONTROL
CONTROL
BOX
BOX
SIDE
SIDE
a30-4861
D
A
D
A
Fig. 3 — Unit Operating Weights
3
Table 1A — Physical Data, 30RAP — English
UNIT 30RAP
010
015
018
020
025
030
035
040
045
050
055
060
OPERATING WEIGHT (lb)
MCHX Condenser Coil, No Pump
MCHX Condenser Coil, Single Pump
MCHX Condenser Coil, Dual Pump
704
866
1029
718
880
1043
1125
1288
1450
1133
1296
1458
1242
1405
1567
1283
1446
1608
2163
2507
2850
2185
2529
2872
2238
2582
2925
2263
2606
2950
2369
2713
3056
2375
2719
3062
REFRIGERANT TYPE
Total Refrigerant Charge (lb)
Refrigerant Charge (lb) Ckt A/Ckt B
R-410A, EXV Controlled System
8.6
8.6/—
9.6
9.6/—
14.6
14.6/—
15.2
15.2/—
16.7
17.6
29.2
29.9
33.5
33.7
34.3
34.5
16.7/—
17.6/—
14.3/14.9 14.9/15.0 16.5/17.0 16.7/17.0 16.9/17.4 17.1/17.4
COMPRESSORS
Quantity
Scroll, Hermetic
1
1
2
2
2
2
4
4
4
4
4
4
Speed (Rpm)
(Qty, Tons) Ckt A
3500
(1) 11
—
6.9/—
(1) 15
—
6.9/—
(2) 9
—
13.8/—
(2) 10
—
13.8/—
(2) 13
—
13.8/—
(2) 15
—
13.8/—
(2) 10
(2) 9
(2) 10
(2) 11
(2) 11
(2) 13
(2) 13
(2) 13
(2) 13
(2) 15
(2) 15
(2) 15
(Qty, Tons) Ckt B
13.8/13.8 13.8/13.8 13.8/13.8 13.8/13.8 13.8/13.8 13.8/13.8
Oil Charge (Pt) Ckt A/Ckt B
No. Capacity Steps
Standard
With Hot Gas Bypass
Digital Compressor Option
Minimum Capacity Step (%)
Standard
With Hot Gas Bypass
Digital Compressor Option
Capacity (%)
Circuit A
Circuit B
1
—
13
1
—
13
2
3
—
2
3
22
2
3
22
2
3
22
4
5
44
4
5
44
4
5
44
4
5
44
4
5
44
4
5
44
100
—
20
100
—
20
50
20
—
50
24
15
50
29
15
50
32
15
23
10
8
23
12
8
24
14
8
25
14
8
23
15
8
25
16
8
100
—
100
—
100
—
100
—
100
—
100
—
54
46
47
53
47
53
50
50
46
54
50
50
COOLER
Brazed, Direct-Expansion Plate Heat Exchanger
Weight (lb) (empty)
22.4
4.9
27.5
6.4
31.8
7.6
40.3
10.1
505
46.3
11.7
505
80.6
16.5
565
99.4
21.8
565
117.9
27.5
565
125.3
29.3
565
137.5
34.3
565
160.4
41.8
565
160.4
41.8
565
Net Fluid Volume (gal)
Maximum Refrigerant Pressure (psig)
Maximum Water-Side Pressure
Without Pump(s) (psig)
Maximum Water-Side Pressure
With Pump(s) (psig)
505
505
505
300
300
300
300
300
300
300
300
300
300
300
300
150
150
150
150
150
150
150
150
150
150
150
150
CHILLER WATER CONNECTIONS (in.)
Inlet and Outlet, Victualic
Drain (NPT)
1
1
1
1
1
1
2
1
2
1
2
1
2
1
2
1
2
1
2 /
2 /
2 /
2 /
2 /
2 /
2
2
2
2
2
2
1
1
1
1
1
1
/
/
/
/
/
/
/
/
/
/
/
/
2
2
2
2
2
2
2
2
2
2
2
2
CONDENSER FANS
Standard Low-Sound AeroAcoustic™
Type
Plastic Type, Axial, Vertical Discharge
Fan Speed (Rpm)
850
9...30
1
850
9...30
1
850
9...30
2
850
9...30
2
850
9...30
2
850
9...30
2
850
9...30
3
850
9...30
3
850
9...30
3
850
9...30
3
850
9...30
4
850
9...30
4
No. Blades...Diameter (in.)
No. Fans
Total Airflow (Cfm)
Optional Value Sound Type
Fan Speed (Rpm)
9400
9400
17,500
17,500
19,400
19,400
29,600
29,500
29,300
30,500
38,800
38,800
Propeller Type, Axial, Vertical Discharge
1140
4...30
1
1140
4...30
1
1140
4...30
2
1140
4...30
2
1140
4...30
2
1140
4...30
2
1140
4...30
3
1140
4...30
3
1140
4...30
3
1140
4...30
3
1140
4...30
4
1140
4...30
4
No. Blades...Diameter (in.)
No. Fans
Total Airflow (Cfm)
12,600
12,600
23,400
23,400
26,000
26,000
39,800
39,600
39,300
41,000
52,100
52,100
CONDENSER COILS
Novation® MCHX Aluminum Tube, Aluminum Fin
Quantity (Ckt A/Ckt B)
1/—
17
656
1/—
17
656
1/—
26
656
1/—
26
656
1/—
33
1/—
33
1/1
53
1/1
53
1/1
66
656
1/1
66
656
1/1
66
656
1/1
66
656
Total Face Area (sq ft)
Maximum Refrigerant Pressure (psig)
656
656
656
656
HYDRONIC MODULE (Optional)*
Pump
Expansion Tank Volume (gal)
Total/Acceptance
Pump(s), Strainer with Blowdown Valve, Expansion Tank, Pressure Taps, Drain and Vent Plugs, Flow Switch, and Balance Valve
Single or Dual, Centrifugal Monocell Pump(s), 3500 Rpm. Dual pumps with check valves and isolation valves.
5.0/2.9
10.0/5.5
CHASSIS DIMENSIONS (ft - in.)
Length
Width
5-7
3-5
5-6
5-7
3-5
5-6
7-5
3-5
5-6
7-5
3-5
5-6
7-5
3-5
6-6
7-5
3-5
6-6
7-5
7-9
5-6
7-5
7-9
5-6
7-5
7-9
6-6
7-5
7-9
6-6
7-5
7-9
6-6
7-5
7-9
6-6
Height
LEGEND
*Flow switch and strainer are standard on all units, with or without hydronic package.
EXV
MCHX
—
—
Electronic Expansion Valve
Microchannel Heat Exchanger
4
Table 1B — Physical Data, 30RAP — SI
UNIT 30RAP
010
015
018
020
025
030
035
040
045
050
055
060
OPERATING WEIGHT (kg)
MCHX Condenser Coil, No Pump
MCHX Condenser Coil, Single Pump
MCHX Condenser Coil, Dual Pump
319
393
467
326
399
473
510
584
658
514
588
661
564
637
711
582
656
729
981
1137
1293
991
1147
1303
1015
1171
1327
1026
1182
1338
1075
1231
1386
1077
1233
1389
REFRIGERANT TYPE
Total Refrigerant Charge (kg)
Refrigerant Charge (kg) Ckt A/Ckt B
R-410A, EXV Controlled System
3.9
3.9/—
4.4
4.4/—
6.6
6.6/—
7.1
7.1/—
7.6
8.0
13.4
13.6
15.6
7.8/7.8
15.7
7.8/7.8
16.0
7.9/8.1
16.1
8.1/8.1
7.6/—
8.0/—
6.8/6.7
6.8/6.8
COMPRESSORS
Quantity
Scroll, Hermetic
1
1
2
2
2
2
4
4
4
4
4
4
Speed (R/s)
58.3
(Qty, kW) Ckt A
(Qty, kW) Ckt B
Oil Charge (L) Ckt A/Ckt B
No. Capacity Steps
Standard
With Hot Gas Bypass
Digital Compressor Option
Minimum Capacity Step (%)
Standard
With Hot Gas Bypass
Digital Compressor Option
Capacity (%)
Circuit A
Circuit B
(1) 38
—
3.3/—
(1) 53
—
3.3/—
(2) 32
—
6.5/—
(2) 35
—
6.5/—
(2) 46
—
6.5/—
(2) 53
—
6.5/—
(2) 35
(2) 32
6.5/6.5
(2) 35
(2) 38
6.5/6.5
(2) 38
(2) 46
6.5/6.5
(2) 46
(2) 46
6.5/6.5
(2) 46
(2) 53
6.5/6.5
(2) 53
(2) 53
6.5/6.5
1
—
13
1
—
13
2
3
—
2
3
22
2
3
22
2
3
22
4
5
44
4
5
44
4
5
44
4
5
44
4
5
44
4
5
44
100
—
20
100
—
20
50
20
—
50
24
15
50
29
15
50
32
15
23
10
8
23
12
8
24
14
8
25
14
8
23
15
8
25
16
8
100
—
100
—
100
—
100
—
100
—
100
—
54
46
47
53
47
53
50
50
46
54
50
50
COOLER
Brazed, Direct-Expansion Plate Heat Exchanger
Weight (kg) (empty)
10.1
18.4
3482
12.5
24.1
3482
14.4
28.8
3482
18.3
38.0
3482
21.0
44.4
3482
36.6
62.4
3896
45.1
82.7
3896
53.5
104.0
3896
56.8
111.1
3896
62.4
130.0
3896
72.8
158.3
3896
72.8
158.3
3896
Net Fluid Volume (L)
Maximum Refrigerant Pressure (kPa)
Maximum Water-Side Pressure
Without Pump(s) (kPa)
Maximum Water-Side Pressure
With Pump(s) (kPa)
2068
2068
2068
2068
2068
2068
2068
2068
2068
2068
2068
2068
1034
1034
1034
1034
1034
1034
1034
1034
1034
1034
1034
1034
CHILLER WATER CONNECTIONS (in.)
Inlet and Outlet, Victualic
Drain (NPT)
1
1
1
1
1
1
1
1
1
1
1
1
/
1
/
1
/
1
/
1
/
2
1
2 /
2 /
2 /
2 /
2 /
2 /
2
2
2
2
2
2
2
2
2
2
2
1
1
1
1
1
1
1
1
1
1
1
/
/
/
/
/
/
/
/
/
/
/
/
2
2
2
2
2
2
2
2
2
2
2
2
CONDENSER FANS
Standard Low-Sound AeroAcoustic™
Type
Plastic Type, Axial, Vertical Discharge
Fan Speed (R/s)
14.2
9...762
1
14.2
9...762
1
14.2
9...762
2
14.2
9...762
2
14.2
9...762
2
14.2
9...762
2
14.2
9...762
3
14.2
9...762
3
14.2
9...762
3
14.2
9...762
3
14.2
9...762
4
14.2
9...762
4
No. Blades...Diameter (mm)
No. Fans
Total Airflow (L/s)
Optional Value Sound Type
Fan Speed (R/s)
4400
4400
8300
8300
9200
9200
14,000
14,000
13,800
14,400
18,300
18,300
Propeller Type, Axial, Vertical Discharge
19.0
4...762
1
19.0
4...762
1
19.0
4...762
2
19.0
4...762
2
19.0
4...762
2
19.0
4...762
2
19.0
4...762
3
19.0
4...762
3
19.0
4...762
3
19.0
4...762
3
19.0
4...762
4
19.0
4...762
4
No. Blades...Diameter (mm)
No. Fans
Total Airflow (L/s)
5900
5900
11,000
11,000
12,300
12,300
18,800
18,700
18,500
19,400
24,600
24,600
CONDENSER COILS
Novation® MCHX Aluminum Tube, Aluminum Fin
Quantity (Ckt A/Ckt B)
1/—
1.6
4523
1/—
1.6
4523
1/—
2.4
4523
1/—
2.4
4523
1/—
3.1
1/—
3.1
1/1
4.9
1/1
4.9
1/1
6.1
4523
1/1
6.1
4523
1/1
6.1
4523
1/1
6.1
4523
Total Face Area (sq m)
Maximum Refrigerant Pressure (kPa)
4523
4523
4523
4523
HYDRONIC MODULE (Optional)*
Pump
Expansion Tank Volume (L)
Total/Acceptance
Pump(s), Strainer with Blowdown Valve, Expansion Tank, Pressure Taps, Drain and Vent Plugs, Flow Switch, and Balance Valve
Single or Dual, Centrifugal Monocell Pump(s), 3500 Rpm. Dual pumps with check valves and isolation valves.
18.9/11.0
37.9/20.8
CHASSIS DIMENSIONS (mm)
Length
Width
1689
1029
1689
1689
1029
1689
2242
2242
1025
1689
2242
1025
1994
2242
1025
1994
2248
2350
1689
2248
2350
1689
2248
2350
1994
2248
2350
1994
2248
2350
1994
2248
2350
1994
1025
Height
1689
LEGEND
*Flow switch and strainer are standard on all units, with or without hydronic package.
EXV
MCHX
—
—
Electronic Expansion Valve
Microchannel Heat Exchanger
5
MOUNTING UNIT — When unit is in proper location, use
of mounting holes in base rails is recommended for securing
unit to supporting structure, or for mounting unit on vibration
end opposite the control panel for sizes 035 to 060. See
Fig. 5-10, depending on model.
All sizes have victaulic connections as shown in the physi-
cal data tables. Provide a means of venting air from the high
point of the field-installed piping as required. Install field-sup-
plied drains in both the entering and leaving fluid connections.
isolators if required. See Fig. 4. Fasteners for mounting unit are
1
field supplied. Be sure unit is level to within / in. per foot for
8
proper oil return to compressor.
After field piping is complete, freeze-up protection is rec-
ommended using inhibited ethylene glycol or other suitable in-
hibited antifreeze solution and electric heat tapes in areas
where piping is exposed to low ambient temperatures (34 F
[1 °C] or below). Heat tapes should possess a rating for area
ambients and be covered with a suitable thickness of closed-
cell insulation. Route power for heating tapes from a separately
fused disconnect. Identify disconnect as heat tape power source
with a warning that power must not be turned off except when
unit is being serviced.
The water connections are copper victaulic. Any connecting
pipe to the 30RAP pump package must be of a material that
will not cause any galvanic corrosion. For this reason, galva-
nized steel pipe or other dissimilar metals must not be used un-
less joined by a dielectric coupling.
Step 2 — Check Compressor Mounting — As
shipped, units with single compressors are held down with 4
bolts through rubber grommets. All units with tandem com-
presors are held down with 6 bolts per pair through grommets.
After unit is installed, verify mounting bolt torque 7 to10 ft-lb.
Step 3 — Cooler Fluid and Drain Piping Con-
nections
ALL UNITS — These chillers are supplied with factory-
installed strainer (including blow-down valve) in the entering
fluid piping and flow switch in the leaving fluid piping. Flow
switch wiring is factory installed. .
CAUTION
Do not circulate water through unit without strainer in
place. Failure to use the strainer represents abuse and may
impair or otherwise negatively affect the Carrier product
warranty.
Installation of water systems should follow sound engineer-
ing practice as well as applicable local and industry standards.
Improperly designed or installed systems may cause unsatis-
factory operation and/or system failure. Consult a water treat-
ment specialist or appropriate literature for information regard-
ing filtration, water treatment, and control devices.
Piping connections are located on the front of the chiller
when facing the control panel for sizes 010 to 030 and at the
a30-4916
Fig. 4 — Unit Rigging Label Detail
6
a30-4948
7
a30-4949
8
a30-4950
9
a30-4879
10
a30-4880
11
a30-4881
12
UNITS WITH FACTORY-INSTALLED HYDRONIC
PACKAGES — The 30RAP chillers with factory-installed
hydronic packages are designed for use with closed systems,
meaning that there is no more than one water-air interface in
the water loop. Cooling tower loops, for example, have two
water-air interfaces (sump and nozzles) and would thus be clas-
sified as open, whereas a correctly designed chilled water loop
with the only water-air interface being in the expansion tank is
closed. Since closed and open water systems behave very dif-
ferently, these instructions assume that the chilled water loop is
closed. A system installed incorrectly such that air is not han-
dled properly — pipe leaks, vent leaks, air in pipes, etc. — may
behave as an open system and thus have unsatisfactory opera-
tion. Pump seal wear can also cause leaks that cause poor sys-
tem operation.
the piping between the unit and the valves, following all
applicable state and local codes.
System Pressurization — A proper initial cold fill pressure
must be established before the filling of the unit. The initial
cold fill pressure is the pressure applied at the filling point to
fill a system to its highest point, plus a minimum pressure at the
top of the system (4 psi minimum) to operate air vents and pos-
itively pressurize the system.
The compression tank (sometimes called expansion tank) is
very important to system pressurization. The compression tank
actually serves several purposes:
1. Provide net positive suction head required (NPSHR) for
the pump to operate satisfactorily.
2. Set system pressure.
Proper closed system design and installation procedures
should be followed closely. The system must be constructed
with pressure tight components and thoroughly tested for
installation leaks. Factory-supplied hydronic systems are avail-
able with single or dual (for back-up) pumps.
Figure 11 shows a typical installation with components that
might be installed with the hydronic package of the 30RAP
unit. The factory-installed system includes all of the compo-
nents within the dashed lines. Figure 12 illustrates a typical
dual pump package for the 010-030 size models.
NOTE: For units with single pumps, it is recommended that
isolation (shutoff) valves be placed exterior to the unit to
allow removal and service of the entire pump assembly, if
necessary. Units with dual pumps have pump isolation
valves provided. Also, if the unit is isolated with valves, a
properly sized pressure relief valve should be installed in
3. Accommodate expansion/contraction of water due to
temperature changes.
4. Acts as a pressure reference for the pump.
The compression tank pressure must be set BEFORE the
system is filled. The tanks are pre-charged at the factory to
40 psig (276 kPa). If the 30RAP unit with expansion tank is the
high point in the system, tank pre-charge pressure of 40 psig
(276 kPa) will be adequate. If the 30RAP unit with expansion
tank is NOT at the high point in the system, then the minimum
pre-charge pressure for the water system must be determined
using Table 2 and the method below:
Tank Pressure = 4 + (height from tank to top of
system in feet/“X”)
[27.6 + (height in m x 22.6/”X”)]
2
14
7
5
6
3
12
11
1
4
13
6
9
12
11
8
10
LEGEND
---
Factory Supplied
1 — Strainer/Blow-Down Valve
2 — Expansion Tank
3 — Pump
8 — Flow Switch
9 — Balance Valve/Drain Plug
10 — Pressure Relief
4 — Electric Heater
11 — Isolation Valves
5 — Air Vent Connection Port
6 — Pressure/Temperature Access Port
7 — Heat Exchanger
12 — Flex Connections
13 — Pressure Reducing/Fill Valve
14 — Air Separator and Vent
a30-4871
Fig. 11 — Typical Piping Diagram — 30RAP Units with Hydronic Package
13
unless the water loop volume changes (either due to addition/
subtraction of water or temperature expansion/contraction).
The pressure at this point remains the same regardless of
whether or not the pump is running.
Since the expansion tank acts as a reference point for the
pump, there cannot be two reference points (two expansion
tanks) in a system (unless manifolded together). If system
volume or other design considerations warrant the placement
of another expansion tank somewhere in the system, the expan-
sion tank in the 30RAP hydronic package MUST be discon-
nected from its hose and the end of the hose securely plugged.
7
(HIDDEN)
This is also true for applications where two or more 30RAP
chillers are placed in parallel. There should not be more than
one expansion tank in the system (unless manifolded together
as seen in Fig. 12). The expansion tanks must be disconnected
from the 30RAP hydronic package. It is permissible to install
the expansion tank(s) in a portion of the return water line that is
common to all pumps, providing that the tank is properly sized
for combined system volume.
6
2
3
4
1
If the application involves two or more chillers in a primary/
secondary system, a common place for mounting the
expansion tank is in the chilled water return line, just before the
decoupler. See Fig. 13 for placement of expansion tank in
primary/secondary systems.
a30-4635
The expansion tank included in the 30RAP hydronic pack-
age is a diaphragm tank, meaning that a flexible diaphragm
physically separates the water/air interface. With this type of
expansion tank, it is undesirable to have any air in the water
loop. See the section on air separation below for instructions on
providing air separation equipment.
AIR SEPARATION — For proper system operation, it is
essential that water loops be installed with proper means to
manage air in the system. Free air in the system can cause
noise, reduce terminal output, stop flow, or even cause pump
failure due to pump cavitation. For closed systems, equipment
should be provided to eliminate all air from the system.
The amount of air that water can hold in solution depends
on the pressure and temperature of the water/air mixture. Air is
less soluble at higher temperatures and at lower pressures.
Therefore, separation can best be done at the point of highest
water temperature and lowest pressure. Typically, this point
would be on the suction side of the pump as the water is return-
ing from the system or terminals. Generally speaking, this is
the best place to install an air separator, if possible.
1. Install automatic air vents at all high points in the system.
(If the 30RAP unit is located at the high point of the
system, a vent can be installed on the piping entering the
heat exchanger on the ¼-in. NPT female port.)
5
LEGEND
1
2
3
—
—
—
Strainer
4
—
Balancing Valve with
Blow-Down Valve
Drain Plug
Discharge Check Valve
(Dual Pumps Only)
5
6
7
—
—
—
Field Connections
Heater
Service Valves
Fig. 12 — Typical Dual Pump Package
For example, assuming a system containing a 20% concen-
tration of ethylene glycol and 50 feet (15.2 m) in height from
the top of the system to the expansion tank, the minimum tank
pre-charge pressure would be:
Tank Pressure = 4 + (50 / 2.38) = 25.0 psig
= 27.6 + (15.2 x 22.6 / 2.38) = 171.9 kPa
Table 2 — “X” Factor for Setting Tank Pressure
ETHYLENE
GLYCOL
PROPYLENE
GLYCOL
% GLYCOL
0 (pure water)
2.31
2.36
2.38
2.40
2.43
2.47
2.31
2.33
2.36
2.38
2.38
2.40
10
20
30
40
50
2. Install an air separator in the water loop, at the place
where the water is at higher temperatures and lower
pressures — usually in the chilled water return piping.
On a primary-secondary system, the highest temperature
water is normally in the secondary loop, close to the
decoupler. Preference should be given to that point on the
system (see Fig. 13). In-line or centrifugal air separators
are readily available in the field.
NOTE: If expansion tanks are placed elsewhere in the system this
method cannot be used since extra pressure drop between the tank
and the pump must be accounted for.
NOTE: If the system requires a pre-charge greater than
40 psig (276 kPa), increase pressure as described below.
Expansion Tank Pre-Charge — To pre-charge the expansion
tank, do the following steps:
1. Check the tank air pressure at the pre-charge connection
with an accurate pressure gage. Adjust as needed.
2. If additional pressure is required, charge the tank with oil-
free compressed air or nitrogen gas. Occasionally check
the pressure as when filling a tire.
It may not be possible to install air separators at the place of
lowest pressure and highest temperature. In such cases, prefer-
ence should be given to the points of highest temperature. It is
important that pipe be sized correctly so that free air can be
moved to the point of separation. Generally, a water velocity of
at least 2 feet per second will keep free air entrained and
prevent it from forming air pockets.
Automatic vents should be installed at all physically elevat-
ed points in the system so that air can be eliminated during
system operation. Provision should also be made for manual
venting during the water loop fill. It is important that the
automatic vents be located in accessible locations for
3. Check the air valve for leakage. If it leaks, relieve the
pressure and replace the core with a Schrader type tire
core. DO NOT depend on the valve cap to seal the leak.
Once the system is pressurized, the pressure at the connec-
tion point of the expansion tank to water piping will not change
14
maintenance purposes, and that they be located where they can
be prevented from freezing.
every 3 to 4 hours. Change filters as often as neces-
sary during the cleaning process.
d. Remove temporary bypass when cleaning is
Step 4 — Fill the Chilled Water Loop
complete.
WATER SYSTEM CLEANING — Proper water system
cleaning is of vital importance. Excessive particulates in the
water system can cause excessive pump seal wear, reduce or
stop flow, and cause damage of other components. Water
quality should be maintained within the limits indicated in
Table 3. Failure to maintain proper water quality may result in
heat exchanger failure.
Table 3 — Water Quality Characteristics
and Limitations
WATER CHARACTERISTIC
-
QUALITY LIMITATION
70 – 300 ppm
Alkalinity (HCO
2-
)
3
Sulfate (SO
)
Less than 70 ppm
Greater than 1.0
10 – 500S/cm
7.5 – 9.0
4
-
2-
HCO /SO
3
4
Electrical Conductivity
pH
CAUTION
Failure to properly clean all piping and components of the
chilled water system before unit start-up may result in
plugging of the heat exchanger, which can lead to poor per-
formance, nuisance alarms and damage from freezing.
Freezing damage caused by an improperly cleaned system
represents abuse and may impair or otherwise negatively
affect the Carrier product warranty.
Ammonium (NH )
3
Less than 2 ppm
Less than 300 ppm
Less than 1 ppm
-
Chorides (Cl )
Free chlorine (Cl )
2
Hydrogen Sulfide (H S)*
2
Less than 0.05 ppm
Less than 5 ppm
Free (aggressive) Carbon
Dioxide (CO )†
2
Total Hardness (dH)
4.0 – 8.5
Nitrate (NO )
3
Less than 100 ppm
Less than 0.2 ppm
Less than 0.2 ppm
Less than 0.1 ppm
1. Install a temporary bypass around the chiller to avoid cir-
culating dirty water and particulates into the pump pack-
age and chiller during the flush. Use a temporary circulat-
ing pump during the cleaning process. Also, be sure that
there is capability to fully drain the system after cleaning.
(See Fig 14.)
2. Be sure to use a cleaning agent that is compatible with all
system materials. Be especially careful if the system
contains any galvanized or aluminum components. Both
detergent-dispersant and alkaline-dispersant cleaning
agents are available.
3. It is a good idea to fill the system through a water meter.
This provides a reference point for the future for loop
volume readings, but it also establishes the correct
quantity of cleaner needed in order to get the required
concentration.
4. Use a feeder/transfer pump to mix the solution and fill the
system. Circulate the cleaning system for the length of
time recommended by the cleaning agent manufacturer.
Iron (Fe)
Aluminum (Al)
Manganese (Mn)
*Sulfides in the water quickly oxidize when exposed to air, requiring that
no agitation occur as the sample is taken. Unless tested immediately
at the site, the sample will require stabilization with a few drops of one
Molar zinc acetate solution, allowing accurate sulfide determination up
to 24 hours after sampling. A low pH and high alkalinity cause system
problems, even when both values are within the ranges shown. The
term pH refers to the acidity, basicity, or neutrality of the water supply.
Below 7.0, the water is considered to be acidic. Above 7.0, water is
considered to be basic. Neutral water contains a pH of 7.0.
†Dissolved carbon dioxide can either be calculated from the pH and
total alkalinity values, shown below, or measured on the site using a
[(6.3-pH)/0.3]
test kit. Dissolved Carbon Dioxide, PPM = TA x 2
where TA
= Total Alkalinity, PPM as CaCO .
3
A 40-mesh strainer with a blow-down valve is standard on
all 30RAP units, both with and without hydronic packages.
The blow-down valve allows removal of particulates caught in
the strainer without complete removal of the screen. A female
NPT connection is provided on the valve, allowing hose con-
nection for drainage outside the unit.
The Carrier ComfortLink™ controls provided have a built-
in feature to remind building owners or operators to clean the
strainer by discharging the blow-down valve at a pre-set time
interval. Properly installed and cleaned systems will rarely
need the strainer cleaned after the initial fill. This time interval
is user-configurable.
a. After cleaning, drain the cleaning fluid and flush the
system with fresh water.
b. A slight amount of cleaning residue in the system can
help keep the desired, slightly alkaline, water pH of 8
to 9. Avoid a pH greater than 10, since this will
adversely affect pump seal components.
c. A side stream filter is recommended (see Fig. 15)
during the cleaning process. Filter side flow rate
should be enough to filter the entire water volume
Distribution Pump
Decoupler
Expansion
Tank(s)
Air Separator
with Vent
NOTE: Expansion tanks in the 30RAP hydronic kits must be disconnected for chillers placed parallel in the primary water loop.
Fig. 13 — Typical Air Separator and Expansion Tank Location on Primary-Secondary Systems
15
FILLING THE SYSTEM — The initial fill of the chilled
water system must accomplish three purposes:
that often occurs when subtracting pressures made by different
gages.
On primary/secondary systems, it is advisable to set the
30RAP balancing valve to maintain design flow plus 10%
through the chiller.
1. The entire piping system must be filled with water.
2. The pressure at the top of the system must be high enough
to vent air from the system (usually 4 psig is adequate for
most vents).
3. The pressure at all points in the system must be high
enough to prevent flashing in the piping or cavitation in
the pump.
The pressure created by an operating pump affects system
pressure at all points except one — the connection of the
compression tank to the system. This is the only location in the
system where pump operation will not give erroneous pressure
indications during the fill. Therefore, the best location to install
the fill connection is close to the expansion tank. An air vent
should be installed close by to help eliminate air that enters
during the fill procedure.
A rough estimate of water flow can also be obtained from
the pressure gages across the 30RAP heat exchanger.
Figures 16A-17B show the relationship between gpm and heat
exchanger pressure drop. It should be noted that these curves
are for “clean” heat exchangers; they do not apply to heat ex-
changers with fouling. To read the chart, subtract the readings
of the two pressure gages on the hydronic kit. This number is
the pressure drop across the heat exchanger. Adjust the factory-
installed balancing valve or external balancing valve (units
without hydronic package) until the correct pressure drop is ob-
tained for the required gpm. Total unit pressure drop is found in
Appendix A.
Minimum Loop Volume — The minimum volume of fluid re-
quired to be in circulation is a function of the number of com-
pressors in the chiller as well as the type of application. The
minimum fluid in circulation must equal or exceed the values
in the following table. See Table 6.
To achieve this fluid volume, it is often necessary to install a
tank in the loop. The tank should be baffled to ensure there is
no stratification and that water (or brine) entering the tank is
adequately mixed with liquid in the tank. See Fig. 18.
A properly baffled storage tank is available from the factory
as an accessory. These tanks are designed to physically fit
beneath the corresponding 30RAP unit, taking up the same
footprint.
Ensure the following when filling the system:
1. Remove temporary bypass piping and cleaning/flushing
equipment.
2. Check to make sure all drain plugs are installed.
3. Open the blow-down valve to flush the strainer.
Normally, a closed system needs to be filled only once. The
actual filling process is generally a fairly simple procedure. All
air should be purged or vented from the system. Thorough
venting at the high points and circulation at room temperature
for several hours is recommended.
NOTE: Local codes concerning backflow devices and other
protection of the city water system should be consulted and
followed to prevent contamination of the public water
supply. This is especially important when antifreeze is used
in the system.
Set Water Flow Rate — Once the system is cleaned, pressur-
ized, and filled, the flow rate through the chiller needs to be
established. On units with the hydronic package, this can best
be done using the balancing valve.
In order to adjust the balancing valve, put a differential
pressure gage across the pressure taps on the valve. Make sure
that all system isolation and control valves are open. Use
Tables 4A-5B or a Bell & Gossett balancing valve calculator to
determine gpm. To read Tables 4 and 5:
1. Measure the pressure drop across the balancing valve. If
the pressure reading is in psig, multiply psig by 2.31 to
convert to feet of water before using Tables 4A and 5A.
2. Go to the row in the chart corresponding to the setting on
the valve, interpolating if necessary.
•
•
•
30RAP010-018
30RAP022-030
30RAP035-060
83 gallons (314 liters)
119 gallons (450 liters)
241 gallons (912 liters)
Storage tank weight (water weight included) is as follows:
•
•
•
30RAP010-018
30RAP022-030
30RAP035-060
1673 lb (759 kg)
2193 lb (995 kg)
4361 lb (1978 kg)
Maximum Loop Volume (Units with Hydronic Package) —
Since the minimum size of the expansion tank is dependent
upon loop volume, units with the integrated hydronic kit must
not exceed the maximum loop volume limits below (see
Table 7). The limits are dependent on the maximum and mini-
mum temperatures of the water, the maximum and minimum
pressures seen by the expansion tank, and the heat transfer flu-
id. Expansion tank and maximum loop volume data is as
follows.
30RAP010-030
5.0 (18.9)
30RAP035-060
10.0 (37.9)
3. The gpm corresponding to the pressure drop measured is
the flow through the balancing valve.
Volume gal (L)
NOTE: Carrier recommends a differential pressure gage when
measuring pressures across the pumps or balancing valves.
This provides for greater accuracy and reduces error build-up
Acceptance Volume gal (L) 2.9 (11.0)
5.5 (20.8)
SYSTEM
SYSTEM
POT FEEDER AND
TRANSFER PUMP
POT FEEDER AND
TRANSFER PUMP
DILUTED
CLEANING
AGENT
DILUTED
CLEANING
AGENT
SIDE
STREAM
FILTER
x
x
TEMPORARY
PUMP
TEMPORARY
PUMP
30RA UNIT
30RA UNIT
x
x
TEMPORARY
BYPASS
TEMPORARY
BYPASS
TO DRAIN
TO DRAIN
Fig. 15 — Cleaning Using a Side Stream Filter
Fig. 14 — Typical Set Up for Cleaning Process
16
Table 4A — Head (Ft Water) as Read on Balancing Valve for 30RAP010-030
GPM
50
3.6
7.4
SETTING
0
0
0
0
0
0
0
5
10
0.1
0.3
0.7
2
15
0.3
0.7
1.6
4.6
14
20
0.6
1.2
2.9
8.1
—
25
30
35
1.8
3.6
8.9
—
40
2.3
4.7
45
2.9
6
55
4.4
8.9
—
—
—
60
5.2
65
6.1
70
7.1
75
8.1
80
85
90
95
13
—
—
—
—
—
100
14.4
—
—
—
0
10
20
30
40
50
0
0.9
1.8
4.6
12.7 18.3
—
—
1.3
2.7
6.6
9.2 10.4 11.7
0.1
0.2
0.5
1.6
4.1
10.6 12.4 14.4 16.6 18.9
—
—
—
—
—
—
—
—
—
—
11.7 14.8 18.2
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
6.2
16.2
—
—
—
—
—
—
—
—
—
Table 4B — Head (kPa) as Read on Balancing Valve for 30RAP010-030
GPM
50
SETTING
0
5
0.0
0.3
0.6
1.5
10
0.3
0.9
1.1
15
20
1.8
3.6
25
2.7
5.4
30
3.9
35
5.4
40
6.9
45
55
60
65
70
75
80
85
90
95
100
0
10
20
30
40
50
0.0
0.0
0.0
0.0
0.0
0.0
0.9
2.1
4.8
8.7 10.8 13.2 15.5 18.2 21.2 24.2 27.5 31.1 35.0 38.9 43.0
8.1 10.8 14.0 17.9 22.1 26.6 31.7 37.1 43.0 49.6 56.5
8.7 13.8 19.7 26.6 35.0 44.2 54.4
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
6.0 13.7 24.2 38.0 54.7
—
—
—
—
—
—
—
—
—
—
—
—
4.8 18.5 41.8
12.3 48.4
—
—
—
—
—
—
—
Table 5A — Head (Ft Water) as Read on Balancing Valve for 30RAP035-060
GPM
100
5.5
10.1
21.2
53.4
SETTING
40
0.9
1.6
3.4
8.5
50
1.4
2.5
5.3
13.3
37
60
2
3.6
7.6
19.2
53.2
70
2.7
5
10.4
26.2
72.4
80
3.5
6.5
13.6
34.2
85
4
7.3
15.3
90
4.4
8.2
17.2
43.2
95
4.9
9.1
19.1
48.2
105
6
11.2
23.4
58.9
163
110
6.6
12.3
25.7
64.6
115
7.2
13.4
28.1
70.6
120
7.9
14.6
30.5
76.9
125
8.5
130
9.2
17.1
35.8
90.2
135
10
18.5
38.7
97.3 104.7
140
0
10
20
30
40
50
10.7
19.9
41.6
15.8
33.1
83.4
231
533
38.6
23.7
54.6
94.6 106.8 119.8 133.4 147.8
122.8 167.2 218.3 246.5 276.3 307.9 341.1 376.1 412.8 451.1 491.2
178.9 195.5 212.9
249.8 269.4 289.8
576.5 621.7 668.6
85.3
Table 5B — Head (kPa) as Read on Balancing Valve for 30RAP035-060
GPM
SETTING
40
2.7
4.8
10.1
25.3
50
4.2
7.5
15.8
39.6
60
6.0
10.7
22.6
57.2
70
8.0
14.9
31.0
80
85
90
95
100
16.4
30.1
63.2
105
17.9
33.4
69.7
175.5
485.7
110
19.7
36.7
76.6
192.5
533.1
115
21.5
39.9
83.7
210.4
582.6
120
23.5
43.5
90.9
229.2
634.4
125
25.3
47.1
98.6
248.5
688.4
130
27.4
51.0
106.7
268.8
744.4
135
29.8
55.1
115.3
290.0
802.8
140
31.9
59.3
124.0
312.0
863.6
0
10
20
30
40
50
10.4
19.4
40.5
11.9
21.8
45.6
13.1
24.4
51.3
14.6
27.1
56.9
78.1 101.9 115.0 128.7 143.6 159.1
70.6 110.3 158.5 215.8 281.9 318.3 357.0 397.5 440.4
162.7 254.2 365.9 498.3 650.5 734.6 823.4 917.5 1016.5 1120.8 1230.1 1344.3 1463.8 1588.3 1718.0 1852.7 1992.4
50
45
3
4
1
5
2
6
40
35
30
25
20
15
10
5
0
0
25
50
75
100
125
LEGEND
GPM
1 — 30RAP010
2 — 30RAP015
3 — 30RAP018
4 — 30RAP020
5 — 30RAP025
6 — 30RAP030
Fig. 16A — Heat Exchanger Pressure Drop — 30RAP010-030 (English)
17
50
45
40
35
30
25
20
15
5
7
9
8
10
12
&
11
0
0
50
100
150
200
250
LEGEND
GPM
7 — 30RAP035
8 — 30RAP040
9 — 30RAP045
10 — 30RAP050
11 — 30RAP055
12 — 30RAP060
Fig. 16B — Heat Exchanger Pressure Drop — 30RAP035-060 (English)
325
300
275
250
225
200
175
150
125
100
75
6
4
5
2
3
1
50
25
0
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Liters/second
LEGEND
1 — 30RAP010
2 — 30RAP015
3 — 30RAP018
4 — 30RAP020
5 — 30RAP025
6 — 30RAP030
Fig. 17A — Heat Exchanger Pressure Drop — 30RAP010-030 (SI)
18
325
300
275
250
225
200
175
150
125
100
75
9
8
7
10
11& 12
50
25
0
0
5
10
15
20
25
LEGEND
Liters/second
7 — 30RAP035
8 — 30RAP040
9 — 30RAP045
10 — 30RAP050
11 — 30RAP055
12 — 30RAP060
Fig. 17B — Heat Exchanger Pressure Drop — 30RAP035-060 (SI)
Table 7 — Maximum Loop Volume Limits
30RAP010-030
30RAP035-060
CONCENTRATION
GAL
310
180
175
155
150
175
150
128
118
L
GAL
725
425
410
370
350
410
350
300
275
L
PURE WATER
10% EG
20% EG
30% EG
40% EG
10% PG
20% PG
30% PG
40% PG
1173
681
662
587
568
662
568
485
447
2744
1609
1552
1401
1325
1552
1325
1136
1041
BAD
GOOD
LEGEND
EG — Ethlyene Glycol
PG — Propylene Glycol
BAD
GOOD
NOTE: Max loop volume is based on typical system of 12 psig and
30 psig of min/max pressures, and 100 F mean temperature. If the
volume in the system is greater than the limits listed, then extra
expansion tank volume must be added to the system.
Fig. 18 — Tank Baffling
Pump Modification/Trimming (Units with Factory-Installed
Hydronic Package) — Since the pumps are constant speed,
the only way to obtain greater flow with a given pump/impeller
is to decrease system head. This will allow the pump to “ride”
its curve to the right, resulting in increased flow. If greater flow
is necessary, look at opening the balance valve. Also, verify
that the strainer is clean, and that no unnecessary system resis-
tance is present, such as partially closed isolation valves.
Increasing system resistance by closing the balancing valve
will force the pump to “ride” its curve to the left, resulting in
less flow. Although this does reduce power consumption
slightly, it may not be the desirable method of reducing the
flow, especially if a rather large reduction is needed.
Table 6 — Minimum Fluid Volume In Circulation
PROCESS COOLING OR
NORMAL AIR
LOW AMBIENT
CONDITIONING
30RAP
OPERATION
APPLICATION
UNIT
SIZE
APPLICATION gal/ton
(L per kW)
gal/ton (L per kW)
Std Unit HGBP Digital Std Unit HGBP Digital
010,015 12 (13.0) N/A 3 (3.3) 12 (13.0) N/A 3 (3.3)
4 (4.3) 3 (3.3) 10 (10.8) 7 (7.6) 3 (3.3)
3 (3.3) 3 (3.3) 6 (6.5) 5 (5.4) 3 (3.3)
018-030
035-060
6 (6.5)
3 (3.3)
LEGEND
HGBP — Hot Gas Bypass
19
The other method for reducing flow on a constant speed
pump is impeller trimming. The impellers in the pumps provid-
ed in the 30RAP hydronic kit are easily removable for this pur-
pose. Refer to the ITT literature packet supplied with the
hydronic package information on Seal Replacement in the
Service Section, and follow its instructions for impeller remov-
al. Trimming should only be done by a qualified machine shop
that has experience in this operation. Contact your local Carrier
representative for a recommended machine shop. After trim-
ming, the impeller MUST be balanced. Failure to balance
trimmed impellers can result in excessive vibration, noise, and
premature bearing failure.
Impeller trimming has the added benefit of maximum bhp
savings. It is very possible for power savings to pay for the
trimming cost very quickly. The 30RAP pump option may be
applied with a field-supplied VFD. When applied with a VFD,
the maximum length of wiring between the drive and the pump
motor is 50 ft (15.2 m). The maximum allowable carrier fre-
quency of the inverter is 12 kHz, with 3 kHz recommended.
CAUTION
Do not circulate water through unit without strainer in
place. Failure to use the strainer represents abuse and may
impair or otherwise negatively affect the Carrier product
warranty.
1. If the pump will be subjected to freezing temperatures,
steps must be taken to prevent freeze damage. If the
pump will not be used during this time, it is recommend-
ed to drain the pump and hydronic package and these
components back-flushed with inhibited glycol. Other-
wise, a glycol-water solution should be considered as the
heat transfer fluid. Units have a drain mounted on the pip-
ing leaving the heat exchanger. Drains are located on the
sheet metal base of all units.
NOTE: Do not use automobile antifreeze, or any other fluid
that is not approved for heat exchanger duty. Only use appro-
priately inhibited glycols, concentrated to provide adequate
protection for the temperature considered.
2. Use an electric tape heater for the internal piping (exclud-
ing those within the pump box) if unit will be exposed to
freezing temperature.
3. Ensure that power is available to the chiller at all times,
even during the off-season, so that the pump and cooler
heaters have power. Also make sure that the piping tape
heaters have power.
PREPARATION FOR YEAR-ROUND OPERATION — If
the unit is in operation year-round, add sufficient suitable
inhibited antifreeze solution such as propylene or ethylene gly-
col to chilled water to prevent freezing under low-ambient
temperature operating conditions. Consult a local water treat-
ment specialist on characteristics of water and recommended
inhibitor.
IMPORTANT: Glycol antifreeze solutions are highly
recommended since heater tapes provide no protection
in the event of a power failure.
4. On units with pump packages, a heater is supplied in the
pump box that will protect this section from freezing in
outdoor-air temperatures down to –20 F (–29 C), except
in case of a power failure.
®
Motormaster low ambient temperature head pressure control
is required if ambient temperatures are below 45 F (7 C) on
size 018-030 units, and 32 F (0° C) on size 035-060 units.
Motormaster is standard on size 010 and 015 units,
Accessory wind baffles are required with Motormaster head
pressure control if the wind velocity is anticipated to be greater
than 5 mph (8 km/h). Unit sizes 010-030 require one baffle and
unit sizes 035-060 require two baffles. See Table 8.
5. Cooler heaters that will protect down to –20 F (–29 C)
can be installed as a factory option. It should be noted that
these heaters will not protect the cooler from freezing in
the event of a power failure.
PREPARATION FOR WINTER SHUTDOWN — Do not
shut off power disconnect during off-season shutdown. At the
end of the cooling season:
Table 8 — Wind Baffle Accessory Quantities
1. Drain water from system.
ACCESSORY
UNIT SIZE 30RAP
2. Replace drain plug(s) and add sufficient inhibited ethyl-
ene glycol (or other suitable inhibited antifreeze) to
cooler, pump and piping to prevent freezing of residual
water.
3. At the beginning of the next cooling season, refill cooler
and add recommended inhibitor.
PART NO.
010,015 018,020 025,030 035,040 045-060
30RA-900---
054
055
056
1
—
—
—
1
—
—
—
1
—
2
—
—
—
2
Step 5 — Make Electrical Connections
WARNING
CAUTION
To avoid damage to refrigerant coils and electronic compo-
nents, use extreme care when drilling screw holes and
attaching fasteners.
Electrical shock can cause personal injury and death. Shut
off all power to this equipment during installation. There
may be more than one disconnect switch. Tag all discon-
nect locations to alert others not to restore power until work
is completed.
FREEZE PROTECTION — The 30RAP units are provided
with a water strainer and a flow switch to protect against freez-
ing situations that occur from no water flow. While the flow
switch (thermal dispersion) is helpful in preventing freezing
during no-flow situations, it does not protect the chiller in case
of power failure, or in other cases where water temperature
falls below the freezing mark. Appropriate concentrations of
inhibited ethylene glycol or other suitable inhibited antifreeze
solution should be considered for chiller protection where am-
bient temperatures are expected to fall below 32 F (0.0° C).
Consult local water treatment specialist on characteristics of
the system water and add a recommended inhibitor to the
chilled water.
POWER SUPPLY — Electrical characteristics of available
power supply must agree with unit nameplate rating. Field
wiring size and supply voltage must be within limits shown in
Table 9. See Tables 10-17 for component electrical data.
IMPORTANT: Operating unit on improper supply voltage
or with excessive phase imbalance constitutes abuse and
may affect Carrier warranty.
20
Table 9 — Maximum Field Wiring Sizes
CONNECTION
TYPE
WIRE SIZE RANGE
TERMINAL BLOCK, MCA UP TO 175 AMPS
TERMINAL BLOCK, MCA 175 TO 420 AMPS
NON-FUSED DISCONNECT, UP TO 100 AMPS
NON-FUSED DISCONNECT, 100 TO 200 AMPS
NON-FUSED DISCONNECT, 200 TO 450 AMPS
14 AWG to 2/0 AWG
2 AWG to 600 kcmil
14 AWG to 1/0 AWG
6 AWG to 350 kcmil
3/0 AWG to 500 kcmil
AWG — American Wire Gage, kcmil
MCA — Minimum Circuit Amps
Table 10 — 30RAP Electrical Data — No Hydronic Package
NO HYDRONIC PACKAGE
NO HYDRONIC PACKAGE
UNIT VOLTAGE
UNIT
POWER
SUPPLY
QTY
STANDARD LOW-SOUND AEROACOUSTIC™ FAN
OPTIONAL VALUE SOUND FANS
Supplied
Rec
Rec
Fuse
Size
30RAP
V-Hz
MCA
MOCP
ICF
Fuse
Size
MCA
MOCP
ICF
REQD.
(3 Ph)
Min
Max
208/230-60
380-60
187
342
414
518
187
342
414
518
187
342
414
518
187
342
414
518
187
342
414
518
187
342
414
518
187
342
414
518
187
342
414
518
187
342
414
518
187
342
414
518
187
342
414
518
187
342
414
518
253
418
506
633
253
418
506
633
253
418
506
633
253
418
506
633
253
418
506
633
253
418
506
633
253
418
506
633
253
418
506
633
253
418
506
633
253
418
506
633
253
418
506
633
253
418
506
633
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
66.1
33.5
26.2
20.8
75.8
46.4
36.5
32.0
87.2
51.1
43.4
34.9
92.6
61.2
46.1
37.0
127.4
68.3
57.8
49.8
137.6
84.3
66.3
58.1
165.4
84.3
82.4
66.1
110
50
251.0
148.9
127.9
102.4
346.0
199.9
181.9
134.4
270.4
167.0
136.5
98.2
286.8
176.5
148.7
99.1
363.3
173.7
178.9
133.7
407.8
237.8
211.7
160.5
341.6
237.8
176.3
121.0
377.0
216.1
180.1
143.7
450.7
216.5
214.8
163.5
453.9
219.7
219.3
168.7
502.9
290.9
255.9
199.3
507.4
298.0
259.7
203.1
80
40
35
25
90
60
45
40
100
60
50
40
110
70
60
45
150
80
70
60
66.7
33.5
26.6
21.0
76.4
46.4
36.9
32.2
88.4
51.1
44.2
35.3
93.8
61.2
46.9
37.4
128.6
68.3
58.6
50.0
138.8
84.3
67.1
58.5
167.2
84.3
83.6
66.7
110
50
251.6
148.9
128.3
102.6
346.6
199.9
182.3
134.6
271.6
167.0
137.3
98.6
288.0
176.5
149.5
99.5
364.5
173.7
179.7
134.1
409.0
237.8
212.5
160.9
341.6
237.8
176.3
121.0
377.0
216.1
180.1
143.7
450.7
216.5
214.8
163.5
453.9
219.7
219.3
168.7
502.9
290.9
255.9
199.3
507.4
298.0
259.7
203.1
80
40
35
25
100
60
45
40
100
60
50
40
110
70
60
45
010
015
018
020
025
030
035
040
045
050
055
060
460-60
40
45
575-60
35
35
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
125
80
60
50
110
70
60
45
125
80
60
50
175
90
80
60
125
80
60
50
110
70
60
45
125
80
60
50
175
90
80
60
150
80
70
60
175
110
90
175
100
80
175
110
90
175
100
80
80
70
80
70
200
110
100
80
225
125
100
80
250
125
110
100
250
150
125
110
300
175
125
125
317
175
150
125
175
100
90
200
110
100
80
225
125
100
80
250
125
110
100
250
150
125
110
300
175
125
125
320
175
150
125
200
100
90
70
80
194.8
112.5
86.2
225
125
100
80
250
125
110
90
250
150
125
100
300
175
125
110
196.6
112.5
87.4
225
125
100
80
250
125
110
90
250
150
125
100
300
175
125
110
68.8
69.4
229.6
119.6
97.9
231.4
119.6
99.1
81.4
82.0
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
236.0
126.0
106.9
91.8
252.2
145.9
118.3
102.7
261.2
160.1
125.9
110.3
237.8
126.0
108.1
92.4
254.6
145.9
119.9
103.5
263.6
160.1
127.5
111.1
300
175
150
125
300
175
150
125
LEGEND
ICF
MCA
—
Instantaneous Current Flow
Minimum Circuit Amps
—
MOCP — Maximum Overcurrent Protection
NOTES:
1. Units are suitable for use on electrical systems where voltage supplied to the unit ter-
minals is not below or above the listed minimum and maximum limits. Maximum allow-
able phase imbalance is: voltage, 2%; amps 10%.
2. All units/modules have single point primary power connection. (Each unit/module
requires its own power supply.) Main power must be supplied from a field-supplied
disconnect.
3. Cooler heater is wired into the control circuit so it is always operable as long as the
power supply disconnect is on, even if any safety device is open.
21
Table 11 — 30RAP Electrical Data — Hydronic Package with Standard Low-Sound AeroAcoustic™ Fan
PUMP SIZE 1 hp
PUMP SIZE 1.5 hp
PUMP SIZE 2 hp
38RAP UNIT
SIZE
VOLTAGE
V-Hz (3 Ph)
PUMP OPTIONS "1" OR "8"
PUMP OPTIONS "2" OR "9"
PUMP OPTIONS "3" OR "B"
MCA
MOCP
ICF
REC FUSE
MCA
MOCP
ICF
REC FUSE
MCA
MOCP
ICF
REC FUSE
208/230-60
380-60
69.4
35.5
27.8
22.1
79.0
48.4
38.2
33.3
90.4
53.0
45.0
36.2
95.8
63.1
47.7
38.3
130.7
70.3
59.4
50.9
140.8
86.3
68.0
59.4
110
50
254.3
253.0
252.6
252.3
349.3
348.0
347.6
347.3
273.7
272.4
272.0
271.7
290.1
288.8
288.4
288.1
366.6
365.3
364.9
364.6
411.1
409.8
409.4
409.1
344.9
343.6
343.2
342.9
380.3
379.0
378.6
378.3
454.0
452.7
452.3
452.0
457.2
455.9
455.5
455.2
506.2
504.9
504.5
504.2
510.7
509.4
509.0
508.7
90
45
35
30
100
60
45
40
100
60
50
40
110
70
60
45
70.6
36.2
28.4
22.6
80.2
49.1
38.7
33.8
91.6
53.8
45.6
36.7
97.0
63.9
48.3
38.8
131.9
71.0
60.0
51.4
142.0
87.0
68.5
59.9
110
50
255.4
151.6
130.1
104.2
350.4
202.6
184.1
136.2
274.8
169.7
138.7
100.0
291.2
179.2
150.9
100.9
367.7
176.4
181.1
135.5
412.2
240.5
213.9
162.3
346.0
209.9
178.5
122.8
381.4
218.8
182.3
145.5
455.1
219.2
217.0
165.3
458.3
222.4
221.5
170.5
507.3
293.6
258.1
201.1
511.8
300.7
261.9
204.9
90
45
35
30
100
60
50
40
100
60
50
45
110
70
60
45
71.7
60.5
28.9
22.9
81.4
83.7
39.2
34.2
92.8
73.6
46.1
37.0
98.2
88.2
48.8
39.2
110
60
256.6
152.2
130.6
104.5
351.6
203.2
184.6
136.5
276.0
170.3
139.2
100.3
292.4
179.8
151.4
101.3
368.9
177.0
181.6
135.8
413.4
241.1
214.4
162.6
347.2
210.5
179.0
123.2
382.6
219.4
182.8
145.9
456.3
219.8
217.5
165.6
459.5
223.0
222.0
170.8
508.5
294.2
258.6
201.4
513.0
301.3
262.4
205.2
90
45
35
30
100
60
50
45
110
60
60
45
110
80
60
45
010
015
018
020
025
030
035
040
045
050
055
060
460-60
45
45
45
575-60
35
35
35
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
125
80
60
50
110
70
60
45
125
80
60
50
175
90
80
70
125
80
60
50
110
70
60
50
125
80
60
50
175
90
80
70
125
80
60
50
125
70
60
50
125
80
60
50
175
90
80
70
150
80
70
60
150
80
70
60
133.0
98.5
60.5
51.7
150
80
70
60
175
110
90
175
100
80
175
110
90
175
100
80
143.2
121.6
69.0
175
110
90
175
100
80
80
70
80
70
60.3
80
70
168.6
105.5
84.0
200
125
100
80
225
125
100
80
250
125
110
100
250
150
125
110
300
175
125
125
300
175
150
125
200
125
90
169.8
106.2
84.6
200
125
100
80
225
125
100
80
250
125
110
100
250
150
125
110
300
175
125
125
300
175
150
125
200
125
90
171.0
130.5
85.1
200
125
100
80
225
125
100
80
250
125
110
100
250
150
125
110
300
175
125
125
300
175
150
125
200
125
90
67.5
80
67.9
80
68.3
80
198.0
114.4
87.8
225
125
100
80
250
125
110
90
250
150
125
100
300
175
125
110
199.2
115.2
88.4
225
125
100
80
250
125
110
90
250
150
125
100
300
175
125
125
200.4
139.5
88.9
225
125
100
80
250
125
110
90
250
150
125
100
300
175
125
125
70.1
70.6
71.0
232.9
121.6
99.5
234.1
122.3
100.1
83.2
240.5
128.7
109.1
93.6
256.6
148.6
120.5
104.5
265.6
162.8
128.1
112.1
235.2
149.8
100.6
83.5
241.6
156.2
109.6
93.9
257.8
183.2
121.0
104.9
266.8
197.4
128.6
112.5
82.7
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
239.3
128.0
108.5
93.1
255.4
147.9
120.0
104.0
264.4
162.1
127.6
111.6
300
175
150
125
300
175
150
125
300
175
150
125
LEGEND
ICF
—
—
Instantaneous Current Flow
Minimum Circuit Amps
MCA
MOCP — Maximum Overcurrent Protection
NOTES:
1. Units are suitable for use on electrical systems where voltage supplied to the unit ter-
minals is not below or above the listed minimum and maximum limits. Maximum allow-
able phase imbalance is: voltage, 2%; amps 10%.
2. All units/modules have single point primary power connection. (Each unit/module
requires its own power supply.) Main power must be supplied from a field-supplied
disconnect.
3. Cooler heater is wired into the control circuit so it is always operable as long as the
power supply disconnect is on, even if any safety device is open.
22
Table 11 — 30RAP Electrical Data — Hydronic Package with Standard Low-Sound
AeroAcoustic™ Fan (cont)
PUMP SIZE 3 hp
PUMP SIZE 5 hp
PUMP SIZE 7.5 hp
38RAP UNIT
SIZE
VOLTAGE
V-Hz (3 Ph)
PUMP OPTIONS "4" OR "C"
PUMP OPTIONS "5" OR "6" OR "D" OR "F"
PUMP OPTIONS "7" OR "G"
MCA
MOCP
ICF
REC FUSE
MCA
MOCP
ICF
REC FUSE
MCA
MOCP
ICF
REC FUSE
208/230-60
380-60
74.7
61.9
30.1
23.9
84.4
85.1
40.4
35.1
95.8
75.0
47.3
38.0
101.2
89.6
50.0
40.1
110
60
259.6
153.6
131.8
105.5
354.6
204.6
185.8
137.5
279.0
171.7
140.4
101.3
295.4
181.2
152.6
102.2
371.9
178.4
182.8
136.8
416.4
242.5
215.6
163.6
350.2
211.9
180.2
124.1
385.6
220.8
184.0
146.8
459.3
221.2
218.7
166.6
462.5
224.4
223.2
171.8
511.5
295.6
259.8
202.4
516.0
302.7
263.6
206.2
90
45
35
30
100
60
50
45
110
70
60
45
125
80
60
45
79.5
64.7
32.4
25.8
89.2
87.9
42.7
37.0
100.6
77.8
49.6
39.9
106.0
92.4
52.3
42.0
125
60
264.4
156.4
134.1
107.4
359.4
207.4
188.1
139.4
283.8
174.5
142.7
103.2
300.2
184.0
154.9
104.1
376.7
181.2
185.1
138.7
421.2
245.3
217.9
165.5
355.0
214.7
182.5
126.0
390.4
223.6
186.3
148.7
464.1
224.0
221.0
168.5
467.3
227.2
225.5
173.7
516.3
298.4
262.1
204.3
520.8
305.5
265.9
208.1
100
50
86.1
68.6
35.5
28.3
95.8
91.7
45.9
39.5
107.2
81.6
52.7
42.3
112.6
96.2
55.4
44.5
125
60
271.0
160.2
137.3
109.9
366.0
211.2
191.3
141.9
290.4
178.4
145.9
105.6
306.8
187.9
158.1
106.6
383.3
185.0
188.3
141.2
427.8
249.1
221.1
168.0
361.6
218.5
185.7
128.5
397.0
227.5
189.5
151.2
470.7
227.8
224.2
171.0
473.9
231.0
228.7
176.2
522.9
302.2
265.3
206.8
527.4
309.3
269.1
210.6
100
60
010
015
018
020
025
030
035
040
045
050
055
060
460-60
45
50
40
50
45
575-60
35
40
30
40
35
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
125
80
60
50
125
70
60
50
125
80
60
50
175
90
80
70
125
80
60
60
125
70
60
50
125
90
70
50
110
70
50
45
110
70
60
45
125
80
60
50
175
90
70
60
150
90
70
60
125
80
60
50
125
90
70
50
110
70
60
50
125
70
60
50
125
80
60
50
175
90
80
70
136.0
99.9
61.7
52.7
150
80
70
60
140.8
102.7
64.0
175
100
80
147.4
106.6
67.1
175
100
90
54.6
70
57.1
70
146.2
123.0
70.2
200
110
90
175
100
80
151.0
125.8
72.5
200
125
90
175
110
80
157.6
129.6
75.7
200
125
100
80
200
125
100
80
250
125
110
90
300
150
125
100
300
150
125
110
300
175
150
125
300
200
150
125
175
110
90
61.2
80
70
63.1
80
70
65.6
80
174.0
131.9
86.3
200
125
100
80
250
125
100
80
250
150
110
100
250
150
125
110
300
175
125
125
300
175
150
125
200
125
100
80
225
125
100
80
250
150
110
90
250
150
125
100
300
175
125
125
300
175
150
125
178.8
134.7
88.6
200
125
100
80
250
125
110
80
250
150
125
100
300
150
125
110
300
175
150
125
300
200
150
125
200
125
100
80
225
125
100
80
250
150
110
100
300
150
125
110
300
175
150
125
300
200
150
125
185.4
138.6
91.7
200
125
100
80
250
125
110
80
300
150
125
100
300
150
125
110
300
175
150
125
300
200
150
125
69.2
71.1
73.6
203.4
140.9
90.1
208.2
143.7
92.4
214.8
147.5
95.5
71.9
73.8
76.3
238.2
151.2
101.8
84.5
244.6
157.6
110.8
94.9
260.8
184.6
122.2
105.8
269.8
198.8
129.8
113.4
243.0
154.0
104.1
86.4
249.4
160.4
113.1
96.8
265.6
187.4
124.5
107.7
274.6
201.6
132.1
115.3
249.6
157.9
107.2
88.9
256.0
164.3
116.2
99.3
272.2
191.2
127.7
110.2
281.2
205.4
135.3
117.8
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
LEGEND
ICF
—
—
Instantaneous Current Flow
Minimum Circuit Amps
MCA
MOCP — Maximum Overcurrent Protection
NOTES:
1. Units are suitable for use on electrical systems where voltage supplied to the unit ter-
minals is not below or above the listed minimum and maximum limits. Maximum allow-
able phase imbalance is: voltage, 2%; amps 10%.
2. All units/modules have single point primary power connection. (Each unit/module
requires its own power supply.) Main power must be supplied from a field-supplied
disconnect.
3. Cooler heater is wired into the control circuit so it is always operable as long as the
power supply disconnect is on, even if any safety device is open.
23
Table 12 — 30RAP Electrical Data — Hydronic Package with Optional Value Sound Fans
PUMP SIZE 1 hp
PUMP SIZE 1.5 hp
PUMP SIZE 2 hp
38RAP UNIT
SIZE
VOLTAGE
V-Hz (3 Ph)
PUMP OPTIONS "1" OR "8"
PUMP OPTIONS "2" OR "9"
PUMP OPTIONS "3" OR "B"
MCA
MOCP
ICF
REC FUSE
MCA
MOCP
ICF
REC FUSE
MCA
MOCP
ICF
REC FUSE
208/230-60
380-60
70.0
35.5
28.2
22.3
79.6
48.4
38.6
33.5
91.6
53.0
45.8
36.6
97.0
63.1
48.5
38.7
131.9
70.3
60.2
51.3
142.0
86.3
68.8
59.8
110
50
254.9
253.6
253.2
252.9
349.9
348.6
348.2
347.9
274.9
273.6
273.2
272.9
291.3
290.0
289.6
289.3
367.8
366.5
366.1
365.8
412.3
411.0
410.6
410.3
344.9
343.6
343.2
342.9
380.3
379.0
378.6
378.3
454.0
452.7
452.3
452.0
457.2
455.9
455.5
455.2
506.2
504.9
504.5
504.2
510.7
509.4
509.0
508.7
90
45
35
30
100
60
50
40
100
60
50
40
110
70
60
45
71.2
36.2
28.8
22.8
80.8
49.1
39.1
34.0
92.8
53.8
46.4
37.1
98.2
63.9
49.1
39.2
133.1
71.0
60.8
51.8
143.2
87.0
69.3
60.3
110
50
256.0
151.6
130.5
104.4
351.0
202.6
184.5
136.4
276.0
169.7
139.5
100.4
292.4
179.2
151.7
101.3
368.9
176.4
181.9
135.9
413.4
240.5
214.7
162.7
346.0
209.9
178.5
122.8
381.4
218.8
182.3
145.5
455.1
219.2
217.0
165.3
458.3
222.4
221.5
170.5
507.3
293.6
258.1
201.1
511.8
300.7
261.9
204.9
90
45
35
30
100
60
50
40
110
60
60
45
110
70
60
45
72.3
60.5
29.3
23.1
82.0
83.7
39.6
34.4
94.0
73.6
46.9
37.4
99.4
88.2
49.6
39.6
110
60
257.2
152.2
131.0
104.7
352.2
203.2
185.0
136.7
277.2
170.3
140.0
100.7
293.6
179.8
152.2
101.7
370.1
177.0
182.4
136.2
414.6
241.1
215.2
163.0
347.2
210.5
179.0
123.2
382.6
219.4
182.8
145.9
456.3
219.8
217.5
165.6
459.5
223.0
222.0
170.8
508.5
294.2
258.6
201.4
513.0
301.3
262.4
205.2
90
45
35
30
100
60
50
45
110
60
60
45
110
80
60
45
010
015
018
020
025
030
035
040
045
050
055
060
460-60
45
45
45
575-60
35
35
35
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
125
80
60
50
125
70
60
45
125
80
60
50
175
90
80
70
125
80
60
50
125
70
60
50
125
80
60
50
175
90
80
70
125
80
60
50
125
70
60
50
125
80
60
50
175
90
80
70
150
80
70
60
150
80
70
60
134.2
98.5
61.3
52.1
150
80
70
60
175
110
90
175
100
80
175
110
90
175
100
80
144.4
121.6
69.8
200
110
90
175
100
80
80
70
80
70
60.7
80
70
170.4
105.5
85.2
200
125
100
80
225
125
100
80
250
125
110
100
250
150
125
110
300
175
125
125
300
175
150
125
200
125
90
171.6
106.2
85.8
200
125
100
80
225
125
100
80
250
125
110
100
250
150
125
110
300
175
125
125
300
175
150
125
200
125
100
80
225
125
100
80
250
125
110
90
250
150
125
100
300
175
125
125
300
175
150
125
172.8
130.5
86.3
200
125
100
80
250
125
100
80
250
125
110
100
250
150
125
110
300
175
125
125
300
175
150
125
200
125
100
80
225
125
100
80
250
125
110
90
250
150
125
100
300
175
125
125
300
175
150
125
68.1
80
68.5
68.9
199.8
114.4
89.0
225
125
100
80
250
125
110
90
250
150
125
100
300
175
125
125
201.0
115.2
89.6
202.2
139.5
90.1
70.7
71.2
71.6
234.7
121.6
100.7
83.3
241.1
128.0
109.7
93.7
257.8
147.9
121.6
104.8
266.8
162.1
129.2
112.4
235.9
122.3
101.3
83.8
242.3
128.7
110.3
94.2
259.0
148.6
122.1
105.3
268.0
162.8
129.7
112.9
237.0
149.8
101.8
84.1
243.4
156.2
110.8
94.5
260.2
183.2
122.6
105.7
269.2
197.4
130.2
113.3
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
300
175
150
125
LEGEND
ICF
—
—
Instantaneous Current Flow
Minimum Circuit Amps
MCA
MOCP — Maximum Overcurrent Protection
NOTES:
1. Units are suitable for use on electrical systems where voltage supplied to the unit ter-
minals is not below or above the listed minimum and maximum limits. Maximum allow-
able phase imbalance is: voltage, 2%; amps 10%.
2. All units/modules have single point primary power connection. (Each unit/module
requires its own power supply.) Main power must be supplied from a field-supplied
disconnect.
3. Cooler heater is wired into the control circuit so it is always operable as long as the
power supply disconnect is on, even if any safety device is open.
24
Table 12 — 30RAP Electrical Data — Hydronic Package with Optional Value Sound Fans (cont)
PUMP SIZE 3 hp
PUMP SIZE 5 hp
PUMP SIZE 7.5 hp
38RAP UNIT
SIZE
VOLTAGE
V-Hz (3 Ph)
PUMP OPTIONS "4" OR "C"
PUMP OPTIONS "5" OR "6" OR "D" OR "F"
PUMP OPTIONS "7" OR "G"
MCA
MOCP
ICF
REC FUSE
MCA
MOCP
ICF
REC FUSE
MCA
MOCP
ICF
REC FUSE
208/230-60
380-60
75.3
61.9
30.5
24.1
85.0
85.1
40.8
35.3
97.0
75.0
48.1
38.4
102.4
89.6
50.8
40.5
110
60
260.2
153.6
132.2
105.7
355.2
204.6
186.2
137.7
280.2
171.7
141.2
101.7
296.6
181.2
153.4
102.6
373.1
178.4
183.6
137.2
417.6
242.5
216.4
164.0
350.2
211.9
180.2
124.1
385.6
220.8
184.0
146.8
459.3
221.2
218.7
166.6
462.5
224.4
223.2
171.8
511.5
295.6
259.8
202.4
516.0
302.7
263.6
206.2
90
45
40
30
100
60
50
45
110
70
60
45
125
80
60
45
80.1
64.7
32.8
26.0
89.8
87.9
43.1
37.2
101.8
77.8
50.4
40.3
107.2
92.4
53.1
42.4
125
60
265.0
156.4
134.5
107.6
360.0
207.4
188.5
139.6
285.0
174.5
143.5
103.6
301.4
184.0
155.7
104.5
377.9
181.2
185.9
139.1
422.4
245.3
218.7
165.9
355.0
214.7
182.5
126.0
390.4
223.6
186.3
148.7
464.1
224.0
221.0
168.5
467.3
227.2
225.5
173.7
516.3
298.4
262.1
204.3
520.8
305.5
265.9
208.1
100
50
86.7
68.6
35.9
28.5
96.4
91.7
46.3
39.7
108.4
81.6
53.5
42.7
113.8
96.2
56.2
44.9
125
60
271.6
160.2
137.7
110.1
366.6
211.2
191.7
142.1
291.6
178.4
146.7
106.0
308.0
187.9
158.9
107.0
384.5
185.0
189.1
141.6
429.0
249.1
221.9
168.4
361.6
218.5
185.7
128.5
397.0
227.5
189.5
151.2
470.7
227.8
224.2
171.0
473.9
231.0
228.7
176.2
522.9
302.2
265.3
206.8
527.4
309.3
269.1
210.6
100
60
010
015
018
020
025
030
035
040
045
050
055
060
460-60
45
50
40
50
45
575-60
35
40
30
40
35
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
125
80
60
50
125
70
60
50
125
80
60
50
175
90
80
70
125
80
70
60
125
70
60
50
125
90
70
50
110
70
50
45
125
70
60
45
125
80
60
50
175
90
80
60
150
90
70
60
125
80
70
50
125
90
70
50
125
70
60
50
125
70
60
50
125
80
70
50
175
90
80
70
137.2
99.9
62.5
53.1
175
80
70
60
142.0
102.7
64.8
175
100
80
148.6
106.6
67.9
175
100
90
55.0
70
57.5
70
147.4
123.0
71.0
200
110
90
175
100
80
152.2
125.8
73.3
200
125
100
80
200
125
100
80
250
125
110
80
250
150
125
100
300
150
125
110
300
175
150
125
300
200
150
125
175
110
90
158.8
129.6
76.5
200
125
100
80
200
125
110
80
250
125
110
90
300
150
125
100
300
150
125
110
300
175
150
125
300
200
150
125
175
110
90
61.6
80
70
63.5
70
66.0
80
175.8
131.9
87.5
200
125
100
80
250
125
100
80
250
150
125
100
250
150
125
110
300
175
150
125
300
175
150
125
200
125
100
80
225
125
100
80
250
150
110
100
250
150
125
110
300
175
150
125
300
175
150
125
180.6
134.7
89.8
200
125
100
80
225
125
100
80
250
150
125
100
300
150
125
110
300
175
150
125
300
200
150
125
187.2
138.6
92.9
200
125
100
80
250
125
110
90
300
150
125
100
300
150
125
110
300
175
150
125
300
200
150
125
69.8
71.7
74.2
205.2
140.9
91.3
210.0
143.7
93.6
216.6
147.5
96.7
72.5
74.4
76.9
240.0
151.2
103.0
85.1
246.4
157.6
112.0
95.5
263.2
184.6
123.8
106.6
272.2
198.8
131.4
114.2
244.8
154.0
105.3
87.0
251.2
160.4
114.3
97.4
268.0
187.4
126.1
108.5
277.0
201.6
133.7
116.1
251.4
157.9
108.4
89.5
257.8
164.3
117.4
99.9
274.6
191.2
129.3
111.0
283.6
205.4
136.9
118.6
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
LEGEND
ICF
—
—
Instantaneous Current Flow
Minimum Circuit Amps
MCA
MOCP — Maximum Overcurrent Protection
NOTES:
1. Units are suitable for use on electrical systems where voltage supplied to the unit ter-
minals is not below or above the listed minimum and maximum limits. Maximum allow-
able phase imbalance is: voltage, 2%; amps 10%.
2. All units/modules have single point primary power connection. (Each unit/module
requires its own power supply.) Main power must be supplied from a field-supplied
disconnect.
3. Cooler heater is wired into the control circuit so it is always operable as long as the
power supply disconnect is on, even if any safety device is open.
25
Table 13 — Fan Electrical Data —
Standard Low-Sound AeroAcoustic™ Fans
Table 14 — Fan Electrical Data —
Optional Value Sound Fans
STANDARD CONDENSER
OPTIONAL CONDENSER
FANS
FANS
UNIT
30RAP
UNIT VOLTAGE
V-Hz (3 Ph)
UNIT
30RAP
UNIT VOLTAGE
V-Hz (3 Ph)
FLA
FLA
Quantity
Quantity
(each)
(each)
208/230-60
380-60
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
4
4
4
4
4
4
4
4
6.0
3.9
2.9
2.4
6.0
3.9
2.9
2.4
6.0
3.9
2.9
2.4
6.0
3.9
2.9
2.4
6.0
3.9
2.9
2.4
6.0
3.9
2.9
2.4
6.0
3.9
2.9
2.4
6.0
3.9
2.9
2.4
6.0
3.9
2.9
2.4
6.0
3.9
2.9
2.4
6.0
3.9
2.9
2.4
6.0
3.9
2.9
2.4
208/230-60
380-60
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
4
4
4
4
4
4
4
4
6.6
3.9
3.3
2.6
6.6
3.9
3.3
2.6
6.6
3.9
3.3
2.6
6.6
3.9
3.3
2.6
6.6
3.9
3.3
2.6
6.6
3.9
3.3
2.6
6.6
3.9
3.3
2.6
6.6
3.9
3.3
2.6
6.6
3.9
3.3
2.6
6.6
3.9
3.3
2.6
6.6
3.9
3.3
2.6
6.6
3.9
3.3
2.6
010
015
018
020
025
030
035
040
045
050
055
060
010
015
018
020
025
030
035
040
045
050
055
060
460-60
460-60
575-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
LEGEND
FLA — Full Load Amps
LEGEND
FLA — Full Load Amps
26
Table 15 — Pump Electrical Data
UNIT VOLTAGE
V-Hz (3 Ph)
208/230-60
380-60
460-60
575-60
FLA
PUMP OPTION
1, 8
PUMP SIZE
PUMP RPM
(each)
3500
3500
3500
3500
3.3
2.0
1.6
1.3
1.0 HP
3500
3500
3500
3500
3500
3500
3500
3500
3500
3500
3500
3500
3500
3500
3500
3500
208/230-60
380-60
4.4
2.7
2.2
1.8
5.6
3.3
2.7
2.1
8.6
4.7
3.9
3.1
2, 9
3, B
1.5 HP
2.0 HP
3.0 HP
5.0 HP
7.5 HP
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
4, C
13.4
7.5
5, 6, D, F
6.2
5.0
3500
3500
3500
3500
20.0
11.3
9.4
7, G
7.5
LEGEND
Full Load Amps
2. All units/modules have single point primary power connection.
(Each unit/module requires its own power supply.) Main power must
be supplied from a field-supplied disconnect.
FLA
—
3. The unit control circuit power transformer (24 v, single-phase for all
voltages) is factory supplied.
NOTES:
1. Units are suitable for use on electrical systems where voltage sup-
plied to the unit terminals is not below or above the listed minimum
and maximum limits. Maximum allowable phase imbalance is: volt-
age, 2%; amps 10%.
4. Cooler heaters are wired into the main power circuit so they are
always operable as long as the disconnect is on, even if any safety
device is open, and the unit ON/OFF switch is in the OFF position.
Table 16 — Accessory Tank Electrical Data
UNIT VOLTAGE
(V-Hz)
ACCESSORY PART NO.
30RA-900---
FLA
050
051
052
050
051
052
050
051
052
050
051
052
11.3
11.3
22.6
5.7
208/230-60
460-60
5.7
11.3
4.5
575-60
4.5
9.1
6.8
380-60
6.8
13.7
LEGEND
FLA
— Full Load Amps
27
Table 17 — Compressor Electrical Data
CIRCUIT*
NUMBER OF
COMPRESSORS
PER CIRCUIT
UNIT
30RAP
UNIT VOLTAGE
V-Hz (3 Ph)
CIRCUIT A
RLA LRA
CIRCUIT B
RLA
LRA
208/230-60
380-60
48.1
23.7
18.6
14.7
55.8
34.0
26.9
23.7
33.4
19.2
16.7
13.4
35.8
23.7
17.9
14.3
51.3
26.9
23.1
19.9
55.8
34.0
26.9
23.7
35.8
23.7
17.9
14.3
35.8
23.7
17.9
14.3
48.1
23.7
18.6
14.7
51.3
26.9
23.1
19.9
51.3
26.9
23.1
19.9
55.8
34.0
26.9
23.7
245
145
125
100
340
196
179
132
225
140
114
80
239
145
125
80
300
139
150
109
340
196
179
132
239
145
125
80
239
145
125
80
245
145
125
100
300
139
150
109
300
139
150
109
340
196
179
132
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
33.4
19.2
16.7
13.4
48.1
23.7
18.6
14.7
51.3
23.7
23.1
19.9
51.3
26.9
23.1
19.9
55.8
34.0
26.9
23.7
55.8
34.0
26.9
23.7
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
225
140
114
80
245
145
125
100
300
145
150
109
300
139
150
109
340
196
179
132
340
196
179
132
010
015
018
1
1
2
2
2
2
2
2
2
2
2
2
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
020
025
030
035
040
045
050
055
060
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
208/230-60
380-60
460-60
575-60
LEGEND
* All data is per individual compressor.
LRA
RLA
—
—
Locked Rotor Amps
Rated Load Amps
28
POWER WIRING — All power wiring must comply with
applicable local and national codes. Install field-supplied
branch circuit fused disconnect per NEC (National Electric
Code, U.S.A.) of a type can be locked OFF or ON. Disconnect
must be within sight from and readily accessible from unit in
compliance with NEC Article 440-14.
• 4 to 20 mA cooling set point reset (requires field-
supplied 4 to 20 mA generator)
• Discrete inputs for 2-step demand limit (requires field-
supplied dry contacts)
• 4 to 20 mA demand limit (requires field-supplied 4 to
20 mA generator)
• Discrete input for Ice Done switch (requires field-
supplied dry contacts)
Navigator™ Display — The device provides hand-held,
mobile capability using an easy to read 4-line display. The key-
pad function is the same as the scrolling marquee module. A
magnet is provided for ‘hands free’ service of components.
General Wiring Notes
1. The control circuit does NOT require a separate power
source. Control circuit power is obtained by a step-down
transformer from the main three-phase power supply. The
LVT (low voltage terminal) strip is provided for field-
wired control devices.
Low Ambient Operation — If outdoor ambient operating
temperatures below 45 F (7 C) on size 018-030 units or 32 F
(0° C) on size 035-060 units are expected, refer to separate in-
stallation instructions for low-ambient operation using accesso-
2. Cooler and pump heaters (if factory installed) are wired
in the control circuit so they are operable as long as the
main power supply to the unit is ON. A factory-installed
and set overload device protects them.
NOTE: The field-supplied disconnect should never be off
except when unit is being serviced or is to be down for a pro-
longed period, in which case cooler should be drained.
3. Power entry is at the right-hand side of the unit when fac-
ing the control box.
4. Maximum field wire sizes allowed by lugs on terminal
block/non-fused disconnect are listed in Table 8.
®
ry Motormaster V control. Size 010 and 015 units have Mo-
tormaster V installed as standard.
Minimum Load Accessory — If minimum load accessory is
required, refer to unit Price Pages or contact your local Carrier
representative for more details. For installation details, refer to
separate installation instructions supplied with the accessory
package.
Miscellaneous Accessories — For applications requiring spe-
cial accessories, the following packages are available: external
vibration, remote enhanced display, temperature reset, con-
denser coil covers, storage tank, wind baffles, and remote cool-
er. For installation details, refer to separate installation instruc-
tions supplied with these accessory packages.
5. Terminals for field power supply are suitable for
copper conductors. Insulation must be rated 167 F (75 C)
minimum.
FIELD CONNECTIONS
Main Power — Bring wires from the fused disconnect switch
through hole in the middle of the right hand corner post to the
Step 7 — Check Refrigerant Circuit
bottom of the control box and connect to terminals on terminal
LEAK TESTING — Units are shipped with complete operat-
ing charge of R-410A (refer to physical data tables) and should
be under sufficient pressure to conduct a leak test. Perform a
leak test to ensure that leaks have not developed during unit
shipment. Dehydration of the system is not required unless the
entire refrigerant charge has been lost. Repair any leak found
using good refrigeration practice.
DEHYDRATION — Refer to Carrier Standard Service Tech-
niques Manual, Chapter 1, Refrigerants, Sections 6 and 7 for
details. Do not use compressor to evacuate system.
7
block or non-fused disconnect. A / -in. hole is provided in the
8
corner post to locate the center of the field power entry. To
comply with NEC Article 440-14, the disconnect must be lo-
cated within sight from and readily accessible from unit. Refer
to Fig. 19.
IMPORTANT: To ensure power to the heaters, make sure
auxiliary power to the unit and the compressor circuit
breakers is always on (except for servicing or prolonged
shutdown).
REFRIGERANT CHARGE (Refer to Tables 1A and
1B) — Immediately after the condenser coil in each circuit is a
4
CAUTION
1
/ -in. Schrader connection for charging liquid refrigerant.
Proper rotation of condenser fan(s) MUST be verified
before pumps or compressors are started. Consult the Con-
trols, Start-Up and Operation manual provided with this
chiller for correct procedure. Improper pump rotation can
cause permanent damage to pump impeller and housing. If
pump(s) have been removed for trimming, verify that wir-
ing is reconnected in the original manner.
Utilization of Novation condenser coil technology enables
the 30RAP chiller to have a very low refrigerant charge. There-
fore, if field charging is required, accurately charging to the
correct quantity is very important. It is necessary to ensure that
the system is completely evacuated before charging and that
the refrigerant charge is accurately weighed to within 1% of the
nameplate quantity or the unit may not operate correctly.
Control Power — Control power is obtained from the main
power supply and does NOT require a separate source. A
toggle switch (marked Emergency On-Off on the unit label
diagram and by the switch) allows the control circuit to be
manually disconnected when necessary. Cooler and pump
heaters (if installed) are in an operable state when this switch is
in the Off position.
CAUTION
When charging, circulate water through the cooler at all
times to prevent freezing. Freezing damage is considered
abuse and may impair or otherwise negatively affect the
Carrier warranty.
Step 6 — Install Accessories
CAUTION
ELECTRICAL — A number of electrical accessories are
available to provide the following optional features (for details,
refer to the Controls, Start-Up, Operation, Service, and
Troubleshooting book):
DO NOT OVERCHARGE system. Overcharging results
in higher discharge pressure, increased power consump-
tion, and possible compressor damage.
Energy Management Module (Used for any of the following
types of temperature reset, demand limit and ice features):
• 4 to 20 mA leaving fluid temperature reset (requires
field-supplied 4 to 20 mA generator)
1
The suction lines are provided with a / -in. Schrader fitting
4
for connecting to low-side system pressure. The location of the
suction access port is shown in Fig. 20.
29
30
SUCTION
ACCESS
PORT
Fig. 20 — Suction Access Port (Sizes 018-030 Shown)
31
APPENDIX A
Unit Pressure Drop Curves, 30RAP010-060
4
5
3
2
1
50
45
40
35
30
25
20
15
10
5
6
0
0
10
20
30
40
50
60
70
80
90
100
GPM
50
45
40
35
30
25
20
15
10
5
7
8
9
10
11
12
0
0
20
40
60
80
100
120
140
160
GPM
NOTES:
LEGEND
1. Use the following formula to convert feet of water to psig:
ft of water (.4335) = psig
1 — 30RAP010
2 — 30RAP015
3 — 30RAP018
4 — 30RAP020
5 — 30RAP025
6 — 30RAP030
7 — 30RAP035
8 — 30RAP040
9 — 30RAP045
10 — 30RAP050
11 — 30RAP055
12 — 30RAP060
2. Use the following formula to convert psig to feet of water:
psig (2.306) = ft of water
UNITS WITHOUT HYDRONIC PACKAGE (English)
32
APPENDIX A (cont)
Unit Pressure Drop Curves, 30RAP010-060
4
5
6
2
3
1
140
120
100
80
60
40
20
0
0
1
2
3
4
5
6
7
8
9
Liters/Second
7
140
120
100
80
60
40
20
0
8
9
10
11
12
0
1
2
3
4
5
6
7
8
9
10
Liters/Second
NOTES:
LEGEND
1. Use the following formula to convert feet of water to psig:
ft of water (.4335) = psig
1 — 30RAP010
2 — 30RAP015
3 — 30RAP018
4 — 30RAP020
5 — 30RAP025
6 — 30RAP030
7 — 30RAP035
8 — 30RAP040
9 — 30RAP045
10 — 30RAP050
11 — 30RAP055
12 — 30RAP060
2. Use the following formula to convert psig to feet of water:
psig (2.306) = ft of water
UNITS WITHOUT HYDRONIC PACKAGE (SI)
33
APPENDIX A (cont)
Unit Pressure Drop Curves, 30RAP010-060
120
100
80
60
40
20
0
1
2
3
4
5
6
0
10
20
30
40
50
60
70
80
GPM
20
18
16
14
12
10
8
7
8
10
9
11 & 12
6
4
2
0
0
10
20
30
40
50
60
70
80
GPM
NOTES:
LEGEND
1. Use the following formula to convert feet of water to psig:
ft of water (.4335) = psig
1 — 30RAP010
2 — 30RAP015
3 — 30RAP018
4 — 30RAP020
5 — 30RAP025
6 — 30RAP030
7 — 30RAP035
8 — 30RAP040
9 — 30RAP045
10 — 30RAP050
11 — 30RAP055
12 — 30RAP060
2. Use the following formula to convert psig to feet of water:
psig (2.306) = ft of water
UNITS WITH SINGLE PUMP HYDRONIC PACKAGE (English)
34
APPENDIX A (cont)
Unit Pressure Drop Curves, 30RAP010-060
350
300
250
200
150
100
50
1
2
3
4
5
6
0
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
Liters/second
60
50
40
30
20
10
0
7
8
10
9
11 & 12
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
Liters/Second
NOTES:
LEGEND
1. Use the following formula to convert feet of water to psig:
ft of water (.4335) = psig
1 — 30RAP010
2 — 30RAP015
3 — 30RAP018
4 — 30RAP020
5 — 30RAP025
6 — 30RAP030
7 — 30RAP035
8 — 30RAP040
9 — 30RAP045
10 — 30RAP050
11 — 30RAP055
12 — 30RAP060
2. Use the following formula to convert psig to feet of water:
psig (2.306) = ft of water
UNITS WITH SINGLE PUMP HYDRONIC PACKAGE (SI)
35
APPENDIX A (cont)
Unit Pressure Drop Curves, 30RAP010-060
120
100
80
60
40
20
0
1
2
3
4
5
6
0
10
20
30
40
50
60
70
80
GPM
25
20
15
10
5
7
8
10
9
11 & 12
0
0
10
20
30
40
50
60
70
80
GPM
NOTES:
LEGEND
1. Use the following formula to convert feet of water to psig:
ft of water (.4335) = psig
1 — 30RAP010
2 — 30RAP015
3 — 30RAP018
4 — 30RAP020
5 — 30RAP025
6 — 30RAP030
7 — 30RAP035
8 — 30RAP040
9 — 30RAP045
10 — 30RAP050
11 — 30RAP055
12 — 30RAP060
2. Use the following formula to convert psig to feet of water:
psig (2.306) = ft of water
UNITS WITH DUAL PUMP HYDRONIC PACKAGE (English)
36
APPENDIX A (cont)
Unit Pressure Drop Curves, 30RAP010-060
400
350
300
250
200
150
100
50
1
2
3
4
5
0
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
Liters/Second
70
60
50
40
30
20
10
0
7
8
10
9
11 & 12
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
Liters/Second
NOTES:
LEGEND
1. Use the following formula to convert feet of water to psig:
ft of water (.4335) = psig
1 — 30RAP010
2 — 30RAP015
3 — 30RAP018
4 — 30RAP020
5 — 30RAP025
6 — 30RAP030
7 — 30RAP035
8 — 30RAP040
9 — 30RAP045
10 — 30RAP050
11 — 30RAP055
12 — 30RAP060
2. Use the following formula to convert psig to feet of water:
psig (2.306) = ft of water
UNITS WITH DUAL PUMP HYDRONIC PACKAGE (SI)
37
APPENDIX A (cont)
Pressure Drop Curves, Accessory Storage Tanks
100.0
30RAP035-060
10.0
30RAP010-030
1.0
0.1
1
10
100
1000
ACCESSORY TANK FLOW RATE (gpm)
100.0
30RAP035-060
10.0
30RAP010-030
1.0
0.1
1.0
10.0
ACCESSORY TANK FLOW RATE (L/s)
38
Copyright 2009 Carrier Corporation
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53300036-01
Printed in U.S.A.
Form 30RAP-1SI
Pg 40
11-09
Replaces: New
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