Carrier 30XW325-400 User Manual
Page 27
27
OPTIONAL DUAL INPUT POWER CONFIGURATION
LEGEND
NOTES:
1. Each main power source must be supplied from a field-supplied fused
electrical service with a (factory-installed or field-installed) disconnect
located in sight from the unit.
2. Control circuit power must be supplied from a separate source through a
field-supplied disconnect. An optional control transformer may be used
to provide control circuit power from the main unit power supply.
3. Maximum instantaneous current flow (ICF) during start-up is the point in
the starting sequence where the sum of the LRA for the start-up com-
pressor, plus the total RLA for all running compressors is at a maximum.
4. Maximum incoming wire size for each terminal block is 500 kcmil.
5. Maximum allowable phase imbalance is: voltage, 2%; amps, 5%.
6. Use copper conductors only.
7. The MOCP is calculated as follows:
MOCP = (2.25) (largest RLA) + the sum of the other RLAs. Size the fuse
one size down from the result. The RLAs are listed on the nameplate.
The recommended fuse size in amps (RFA) is calculated as follows:
RFA = (1.50) (largest RLA) + the sum of the other RLAs. Size the fuse
one size up from the result. The RLAs are listed on the nameplate.
30XA
UNIT
SIZE
UNIT VOLTAGE
NO. POWER
SUPPLY
CONDUCTORS
MCA
MOCP
ICF
REC FUSE
SIZE
CONTROL CIRCUIT
V-Ph-Hz
Supplied
V-Ph-Hz
MCA and
MOCP
Min
Max
WD
XL
325
200-3-60
187
220
6/6
511.3/511.3
800/800
938/938
—
700
700
115-1-60
20
230-3-60
207
253
6/6
443.9/443.9
700/700
816/816
—
600
600
115-1-60
20
380-3-60
342
418
3/3
270.9/270.9
450/450
494/494
1537/1537
350
350
115-1-60
20
460-3-60
414
506
3/3
222.8/222.8
400/400
408/408
1270/1270
300
300
115-1-60
20
575-3-60
518
633
3/3
176.3/176.3
300/300
326/326
1016/1016
225
225
115-1-60
20
325
HM
200-3-60
187
220
6/6
649.0/649.0
1000/1000
1329/1329
—
800
800
115-1-60
20
230-3-60
207
253
6/6
565.8/565.8
1000/1000
1156/1156
—
700
700
115-1-60
20
380-3-60
342
418
3/3
341.4/341.4
600/600
700/700
2179/2179
450
450
115-1-60
20
460-3-60
414
506
3/3
283.8/283.8
500/500
578/578
1800/1800
350
350
115-1-60
20
575-3-60
518
633
3/3
226.0/226.0
400/400
462/462
1440/1440
300
300
115-1-60
20
350
200-3-60
187
220
6/6
511.3/511.3
800/800
938/938
—
700
700
115-1-60
20
230-3-60
207
253
6/6
443.9/443.9
700/700
816/816
—
600
600
115-1-60
20
380-3-60
342
418
3/3
270.9/270.9
450/450
494/494
1537/1537
350
350
115-1-60
20
460-3-60
414
506
3/3
222.8/222.8
400/400
408/408
1270/1270
300
300
115-1-60
20
575-3-60
518
633
3/3
176.3/176.3
300/300
326/326
1016/1016
225
225
115-1-60
20
350
HM
200-3-60
187
220
6/6
649.0/649.0
1000/1000
1329/1329
—
800
800
115-1-60
20
230-3-60
207
253
6/6
565.8/565.8
1000/1000
1156/1156
—
700
700
115-1-60
20
380-3-60
342
418
3/3
341.4/341.4
600/600
700/700
2179/2179
450
450
115-1-60
20
460-3-60
414
506
3/3
283.8/283.8
500/500
578/578
1800/1800
350
350
115-1-60
20
575-3-60
518
633
3/3
226.0/226.0
400/400
462/462
1440/1440
300
300
115-1-60
20
400
200-3-60
187
220
6/6
578.5/578.5
1000/1000
938/938
—
700
700
115-1-60
20
230-3-60
207
253
6/6
501.6/501.6
800/800
816/816
—
700
700
115-1-60
20
380-3-60
342
418
3/3
302.9/302.9
500/500
494/494
1537/1537
400
400
115-1-60
20
460-3-60
414
506
3/3
251.6/251.6
450/450
408/408
1270/1270
350
350
115-1-60
20
575-3-60
518
633
3/3
203.5/203.5
350/350
326/326
1016/1016
250
250
115-1-60
20
400
HM
200-3-60
187
220
6/6
738.8/738.8
1200/1200
1329/1329
—
1000 1000
115-1-60
20
230-3-60
207
253
6/6
642.6/642.6
1000/1000
1156/1156
—
800
800
115-1-60
20
380-3-60
342
418
6/6
389.4/389.4
600/600
700/700
2179/2179
500
500
115-1-60
20
460-3-60
414
506
3/3
322.1/322.1
500/500
578/578
1800/1800
400
400
115-1-60
20
575-3-60
518
633
3/3
258.0/258.0
450/450
462/462
1440/1440
350
350
115-1-60
20
ICF
— Maximum Instantaneous Current Flow
HM
— Heat Machine Units
LRA
— Locked Rotor Amps
MCA
— Minimum Circuit Ampacity (for wire sizing)
MOCP — Maximum Overcurrent Protection
RLA
— Rated Load Amps
WD
— Wye-Delta Start
XL
— Across-the-Line Start