31
Table 6B — Unit Electrical Data, 30HXA Units (cont)
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 (except for 380/415-50 units). An
accessory control transformer may be used to provide control circuit
power from the main unit power supply.
3. Maximum incoming wire size for each terminal block is 500 kcmil.
4. Maximum allowable phase imbalance is: voltage, 2%; amps, 5%.
5. Use copper conductors only.
6. 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 name-
plate.
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.
UNIT
30HXA
UNIT VOLTAGE
POWER
SUPPLY
QTY. REQD.
NO. POWER
SUPPLY
CONDUCTORS
UNIT VOLTAGE
CONTROL CIRCUIT
V-Hz
(3 Ph)
Supplied
MCA
MOCP
ICF
Rec Fuse Size
V-Hz
(Single
Ph)
Supplied
MCA
and
MOCP
Min Max
XL
WD
XL
WD
Min Max
186
230-60
207
253
1
6
707.9
1000
—
1057.6
—
800
115-60
104
127
15
208/230-60
115-60
104
127
15
Ckt A
187
253
1
6
437.0
700
—
743.0
—
600
Ckt B
187
253
1
6
437.0
700
—
743.0
—
600
460-60
414
506
1
3
355.3
500
1332.9
528.9
400
400
115-60
104
127
15
575-60
518
633
1
3
284.0
400
1066.2
423.2
350
350
115-60
104
127
15
380-60
342
418
1
6
430.2
600
1490.2
601.2
500
500
230-60
207
254
15
380/415-50
342
440
1
6
452.7
600
1466.2
601.2
600
600
230-50
198
254
15
230-50
207
253
1
6
747.7
1000
—
970.3
—
1000
230-50
207
254
15
206
230-60
115-60
104
127
15
Ckt A
207
253
1
6
468.6
700.0
—
726.8
—
600
Ckt B
207
253
1
3
379.8
600.0
—
743.0
—
500
208/230-60
115-60
104
127
15
Ckt A
187
253
1
6
520.6
800.0
—
743.0
—
600
Ckt B
187
253
1
6
422.0
700.0
—
743.0
—
600
460-60
414
506
1
6
400.1
500.0
1377.7
573.7
450
450
115-60
104
127
15
575-60
518
633
1
3
319.9
400.0
1102.1
459.1
400
400
115-60
104
127
15
380-60
342
418
1
6
484.4
600.0
1544.4
655.4
600
600
230-60
207
254
15
380/415-50
342
440
1
6
505.2
700.0
1518.7
653.7
600
600
230-50
198
254
15
230-50
230-50
207
254
15
Ckt A
207
253
1
6
486.0
700.0
—
771.0
—
600
Ckt B
207
253
1
6
415.4
700.0
—
638.0
—
500
246
230-60
115-60
104
127
15
Ckt A
207
253
1
6
592.1
800.0
—
955.3
—
700
Ckt B
207
253
1
3
379.8
600.0
—
743.0
—
500
208/230-60
115-60
104
127
15
Ckt A
187
253
1
6
657.9
800.0
—
978.9
—
800
Ckt B
187
253
1
6
422.0
700.0
—
743.0
—
600
460-60
414
506
1
6
461.9
600.0
1439.5
635.5
600
600
115-60
104
127
15
575-60
518
633
1
3
369.1
450.0
1151.3
508.3
450
450
115-60
104
127
15
380-60
342
418
1
6
559.2
700.0
1619.2
730.2
700
700
230-60
207
254
15
380/415-50
342
440
1
6
586.1
700.0
1599.6
734.6
700
700
230-50
198
254
15
230-50
230-50
207
254
15
Ckt A
207
253
1
6
635.7
800.0
—
858.3
—
800
Ckt B
207
253
1
6
415.4
700.0
—
638.0
—
500
261
230-60
115-60
104
127
15
Ckt A
207
253
1
6
638.0
800.0
—
1001.2
—
800
Ckt B
207
253
1
3
379.8
600.0
—
743.0
—
500
208/230-60
Ckt A
187
253
1
6
708.9
1000.0
—
1029.9
—
800
115-60
104
127
15
Ckt B
187
253
1
6
422.0
700.0
—
743.0
—
600
460-60
414
506
1
6
484.9
600.0
1462.5
658.5
600
600
115-60
104
127
15
575-60
518
633
1
6
387.6
500.0
1169.8
526.8
450
450
115-60
104
127
15
380-60
342
418
1
6
587.1
700.0
1647.1
758.1
700
700
230-60
207
254
15
380/415-50
342
440
1
6
614.4
800.0
1627.9
762.9
700
700
230-50
198
254
15
230-50
230-50
207
254
15
Ckt A
207
253
1
6
682.6
1000.0
—
905.2
—
800
Ckt B
207
253
1
6
415.4
700.0
—
638.0
—
500
271
230-60
115-60
104
127
15
Ckt A
207
253
1
6
683.6
800.0
—
1046.8
—
800
Ckt B
207
253
1
3
379.8
600.0
—
743.0
—
500
208/230-60
Ckt A
187
253
1
6
759.6
1000.0
—
1080.6
—
1000
115-60
104
127
15
Ckt B
187
253
1
6
422.0
700.0
—
743.0
—
600
460-60
414
506
1
6
513.2
600.0
1490.8
686.8
600
600
115-60
104
127
15
575-60
518
633
1
6
410.2
500.0
1192.4
549.4
450
450
115-60
104
127
15
380-60
342
418
1
6
621.4
800.0
1681.4
792.4
700
700
230-60
207
254
15
380/415-50
342
440
1
6
653.9
800.0
1667.4
802.4
800
800
230-50
198
254
15
230-50
230-50
207
254
15
Ckt A
207
253
1
6
747.7
1000.0
—
970.3
—
1000
Ckt B
207
253
1
6
415.4
700.0
—
638.0
—
500
ICF
—
Maximum Instantaneous Current Flow during start-up (the
point in the starting sequence where the sum of the LRA for
the start-up compressor, plus the total RLA for all running
compressors is at a maximum)
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