Carrier R080-528 Installation Instructions Manual page 59

Air-cooled chillers, 60 hz
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Table 7B — Electrical Data High Ambient 125 F Data, Standard Condenser Fan (cont)
UNIT VOLTAGE
UNIT
Supplied
V-Hz
30GXN,R
(3 Ph)
Min
Max
208/230-60
187
253
230-60
207
253
460-60
414
506
225
575-60
518
633
380-60
342
418
208/230-60
187
253
230-60
207
253
228
460-60
414
506
575-60
518
633
380-60
342
418
208/230-60
187
253
230-60
207
253
249
460-60
414
506
575-60
518
633
380-60
342
418
208/230-60
187
253
230-60
207
253
253
460-60
414
506
575-60
518
633
380-60
342
418
208/230-60
187
253
230-60
207
253
460-60
414
506
264
575-60
518
633
380-60
342
418
208/230-60
187
253
230-60
207
253
268
460-60
414
506
575-60
518
633
380-60
342
418
460-60
414
506
281
575-60
518
633
380-60
342
418
460-60
414
506
301
575-60
518
633
380-60
342
418
460-60
414
506
325
575-60
518
633
380-60
342
418
460-60
414
506
350
575-60
518
633
380-60
342
418
LEGEND
ICF
— Maximum Instantaneous Current Flow
MCA
— Minimum Circuit Ampacity (for wire sizing)
MOCP
— Maximum Overcurrent Protection
Rec Fuse Size — Recommended Dual-Element Fuse Amps (150% of largest
compressor rated load amps [RLA] plus 100% of remaining
compressor RLAs and sum of condenser fan full load amps
[FLAs]. Choose next largest standard fuse size.)
— Wye-Delta Start
WD
XL
— Across-the-Line Start
*Amperages in ( ) are for units with cooler heaters installed.
†Wye-delta start is standard. Across-the-line start is not available.
**Circuit A/Circuit B.
NOTES:
1. Main power must be supplied from a field-supplied fused electrical service with a
(factory or field-installed) disconnect located in sight from the unit.
2. Cooler heater, oil heater, and control circuit power must be supplied from a separate
source through a field-supplied disconnect. The control circuit power transformer acces-
sory may be applied to power from the main unit power supply.
3. Maximum incoming wire size for each terminal block is 500 kcmil.
4. Maximum allowable supply voltage phase imbalance is voltage 2%.
5. Never operate a motor where a phase imbalance in supply voltage is greater than 2%.
Use the following formula to determine the percent voltage imbalance.
Percent Voltage Imbalance
max voltage deviation from average voltage
= 100 x
average voltage
Example: Supply voltage is 240-3-60.
AB = 243 v
BC = 236 v
AC = 238 v
Average voltage =
=
POWER
SUPPLY
# Power Supply
MCA
QTY. REQ'D
Conductors
2
12
609/483**
2
12
550/443**
1
6
458
1
3
366
1
6
559
2
12
693/374**
2
12
627/296**
1
6
461
1
3
368
1
6
561
2
12
753/421**
2
12
681/389**
1
6
503
1
6
400
1
6
612
2
12
752/448**
2
12
681/389**
1
6
516
1
6
412
1
6
628
2
12
753/496**
2
12
681/456**
1
6
530
1
6
422
1
6
645
2
12
752/522**
2
12
681/482**
1
6
543
1
6
433
1
6
661
1
6
563
1
6
450
1
6
689
1
6
597
1
6
476
2
9
354/420**
1
6
640
1
6
509
2
9
379/445**
1
6
694
1
6
553
2
12
413/479**
243 + 236 + 238
3
239 v
STANDARD CONDENSER FAN
ICF
MOCP
XL
WD
800/800**
934.1/808.0**
800/700**
914.8/808.0**
600
1444.2
640.2
450
1154.9
511.9
700
1628.8
739.8
1000/600**
1017.9/609.0**
800/500**
991.8/557.0**
600
1446.8
642.8
450
1156.6
513.6
700
1631.3
742.3
1000/600**
1077.7/659.0**
800/600**
1045.6/659.0**
600
1489.1
685.1
500
1189.4
546.4
700
1681.8
792.8
1000/700**
1077.4/685.0**
800/600**
1045.6/659.0**
600
1501.9
697.9
500
1200.6
557.6
800
1698.4
809.4
1000/800**
1077.7/821.0**
800/700**
1045.6/821.0**
600
1516.0
712.0
500
1211.2
568.2
800
1715.2
826.2
1000/800**
1077.4/847.0**
800/700**
1045.6/847.0**
600
1528.8
724.8
500
1222.1
579.1
800
1731.0
842.0
700
1549.3
745.3
500
1239.2
596.2
800
1758.7
869.7
700
1582.7
778.7
500
1264.8
621.8
500/600** 1423.4/1489.3**
534.4/600.3**
700
1626.3
822.3
600
1298.2
655.2
500/600** 1449.0/1514.9**
560.0/625.9**
800
1680.1
876.1
600
1341.8
698.8
500/600** 1482.4/1548.3**
593.4/659.3**
Determine maximum deviation from average voltage:
(AB) 243 – 239 = 4 v
(BC) 239 – 236 = 3 v
(AC) 239 – 238 = 1 v
Maximum deviation is 4 v. Determine percent voltage imbalance:
% Voltage Imbalance
= 100 x
= 1.7%
This amount of phase imbalance is satisfactory as it is below the maximum allow-
able 2%.
IMPORTANT: Contact your local electric utility company immediately if the supply
voltage phase imbalance is more than 2%.
59
CONTROL CIRCUIT
Rec Fuse Size
V-Hz
(Single Ph)
XL
WD
700/600**
115-60
700/600**
115-60
500
500
115-60
400
400
115-60
700
700
230-60
800/450**
115-60
800/350**
115-60
500
500
115-60
400
400
115-60
700
700
230-60
1000/500**
115-60
800/500**
115-60
600
600
115-60
450
450
115-60
700
700
230-60
1000/600**
115-60
800/500**
115-60
600
600
115-60
450
450
115-60
700
700
230-60
1000/600**
115-60
800/600**
115-60
600
600
115-60
500
500
115-60
700
700
230-60
1000/700**
115-60
800/600**
115-60
600
600
115-60
500
500
115-60
800
800
230-60
700
700
115-60
500
500
115-60
800
800
230-60
700
700
115-60
600
600
115-60
400/500**
400/500**
230-60
700
700
115-60
600
600
115-60
450/500**
450/500**
230-60
800
800
115-60
600
600
115-60
500/600**
500/600**
230-60
4
239
MCA and
MOCP*
30 (50)
30 (50)
30 (50)
30 (50)
15 (25)
30 (50)
30 (50)
30 (50)
30 (50)
15 (25)
30 (50)
30 (50)
30 (50)
30 (50)
15 (25)
30 (50)
30 (50)
30 (50)
30 (50)
15 (25)
30 (50)
30 (50)
30 (50)
30 (50)
15 (25)
30 (50)
30 (50)
30 (50)
30 (50)
15 (25)
30 (50)
30 (50)
15 (25)
30 (50)
30 (50)
15 (25)
30 (50)
30 (50)
15 (25)
30 (50)
30 (50)
15 (25)

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