Electrical Data - Carrier 30HR Product Data

Reciprocating liquid chillers
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Electrical data

NOMINAL
VOLT-
AGE
Supply
Range*
UNIT 30
MkW
MCA
070
73.4
218
080
82.3
244
090
91.2
270
100
103.8
161
HR
187
110
112.7
161
120
121.6
187
140
155.8
241
160
190.0
284
070
84.7
271
080
95.3
298
090
105.9
325
100
120.0
198
HS
225
110
130.6
198
120
141.2
225
140
176.8
279
160
212.4
322
COMPRESSOR
UNIT 30
06E
150
HR
175
299
250
HS
275
299
Two electrical power circuits are required. A separate
entrance and a terminal block are provided for each cir-
cuit. Run 6 wires to unit from disconnect switch, 3 to
each circuit.
For size 110 units, the upper value is circuit A and lower
value is circuit B. For other size units, the value given is
per electrical circuit.
For all unshaded areas: Only 1 power circuit is required,
with a single entrance. Run 3 wires to unit, to a single
terminal block.
ICF
— Maximum Instantaneous Current Flow during starting (the
point in the compressor starting sequence where the
sum of the LRA for the starting compressor plus the RLA
for all running compressors is maximum). Not for wire
sizing.
kW
— Maximum allowable power input (each compressor).
LRA
— Locked Rotor Amps.
MCA
— Minimum Circuit Amps (for wire sizing); complies with
NEC, Section 430-24 (U.S.A. Standard).
MFA
— Maximum Fuse Amps; 225% of largest compressor RLA
plus 100% of remaining compressor RLA. Size down to
the next standard fuse size.
MkW
— Maximum unit power input.
MTA
— Must Trip Amps (compressor circuit breaker).
NEC
— National Electrical Code (U.S.A.).
Rec Fuse
— Recommended dual element fuse amps; 150% of larg-
Amps
est compressor RLA plus 100% of remaining compres-
sor RLA. Size up to next standard fuse size.
RLA
— Rated Load Amps.
COMPLETE UNIT
208/230-3-60
187-253
Rec
ICF
Fuse
MFA
MCA
ICF
Amps
503
250
300
101
249
529
300
300
114
262
612
300
350
127
301
529
200
225
140
262
225
250
669
153
327
200
225
695
225
250
166
340
816
300
350
112
403
1068
350
400
131
519
579
300
350
113
282
606
350
350
128
297
706
350
400
143
341
618
225
250
157
297
250
300
779
172
370
225
250
806
250
300
187
385
892
350
400
121
419
1119
400
450
138
528
INDIVIDUAL COMPRESSORS
208/230-3-60
kW
RLA
LRA
21.5
57
283
30.4
83
446
47.5
126
690
24.7
73
345
35.3
100
506
53.1
143
690
LEGEND AND NOTES
460-3-60
575-3-60
414-508
518-632
Rec
Fuse
MFA
MCA
ICF
Amps
125
125
93
188
125
150
105
200
150
150
117
236
150
175
129
200
175
175
141
260
200
200
153
272
150
150
95
323
150
175
106
417
125
150
102
203
150
150
113
214
175
175
124
252
175
200
140
223
200
200
151
279
200
225
162
290
150
175
105
329
175
175
120
435
460-3-60
MTA
RLA
LRA
88
26
142
128
39
223
196
58
345
112
29
173
156
44
253
222
61
345
*Units are suitable for use on electrical systems where voltage supplied
to the unit terminals is not below or above the listed range limits.
†Circuits and compressors are numbered from left to right when viewed
from the front of the unit.
NOTES:
1. Maximum incoming wire size for 208/230 v is as follows:
Units 070-090 have one terminal block, 3 wires, 500 kcmil.
Units 100-160 have 2 terminal blocks, 3 wires per block, 500 kcmil.
2. Maximum incoming wire size for 460 and 575 v is as follows:
Wire size maximum is 500 kcmil for units 070-160.
Units 070-120 have one terminal block, 3 wires; units 140 and 160
have 2 terminal blocks, 3 wires per block.
3. Across-the-start is standard at all voltages.
4. Control circuit requires a separate-fused (15 amp), 115-v, single-ph,
60 Hz power supply, or accessory control power transformer.
5. Control circuit MCA is 7.2 and control circuit MFA is 15.
6. Compressor motors on all units are thermally protected by overtem-
perature sensors in the discharge side of the compressor.
7. Maximum allowable phase imbalance is: volts 2%; amps 10%.
8. Use copper, copper-clad aluminum, or aluminum conductors for field
power wiring.
06E COMPRESSOR
USAGE†
Circuit A
Compressor Number
Rec
Fuse
MFA
A1
A2
Amps
110
125
2150
A150
6175
125
125
6175
A150
6175
150
150
6175
F175
6175
150
150
6175
A150
6175
150
175
6175
F175
6175
175
175
6175
F175
6175
110
125
6299
F175
6299
125
150
6299
F299
6299
125
125
2250
A250
6275
125
150
6275
A250
6275
150
150
6275
F275
6275
150
175
6275
A250
6275
175
175
6275
F275
6275
175
175
6275
F275
6275
125
150
6299
F275
6299
150
150
6299
F299
6299
575-3-60
MTA
RLA
LRA
40
24
98
56
36
164
90
47
276
45
27
120
68
38
176
95
53
276
Circuit B
B1
B2
A150
A150
F175
F175
F299
A250
A250
F275
F275
F299
MTA
33
50
73
40
57
82
29

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