Carrier R080-528 Installation Instructions Manual page 57

Table 7A — Electrical Data Reduced Ambient 115 F Data (cont)
UNIT VOLTAGE
UNIT
Supplied
V-Hz
30GXN,R
(3 Ph)
Min
208/230-60 187
230-60 207
128 460-60 414
575-60 518
380-60 342
208/230-60 187
138,
230-60 207
283B, 303B,
460-60 414
373B
575-60 518
380-60 342
208/230-60 187
153,
230-60 207
283A, 328B,
460-60 414
393B, 418B
575-60 518
380-60 342
208/230-60 187
230-60 207
163,
460-60 414
303A
575-60 518
380-60 342
208/230-60 187
230-60 207
178,
460-60 414
328A, 353A/B
575-60 518
380-60 342
208/230-60 187
230-60 207
208 460-60 414
575-60 518
380-60 342
208/230-60 187
230-60 207
228,
460-60 414
453A/B, 478B
575-60 518
380-60 342
208/230-60 187
253,
230-60 207
373A, 393A,
460-60 414
478A, 503A/B
575-60 518
380-60 342
208/230-60 187
230-60 207
268,
460-60 414
418A, 528A/B
575-60 518
380-60 342
LEGEND
ICF — Maximum Instantaneous Current Flow
MCA — Minimum Circuit Ampacity (for wire sizing)
— Maximum Overcurrent Protection
MOCP
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.)
WD — Wye-Delta Start
XL — Across-the-Line Start
*Wye-delta start is standard. Across-the-line start is not available.
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
# Power
SUPPLY
Supply
QTY. REQD
Max
Conductors
253 1 6
253 1 6
506 1 3
633 1 3
418 1 3
253 1 6
253 1 6
506 1 3
633 1 3
418 1 3
253 2 9
253 1 6
506 1 3
633 1 3
418 1 6
253 2 9
253 2 9
506 1 3
633 1 3
418 1 6
253 2 9
253 2 9
506 1 6
633 1 3
418 1 6
253 2 12
253 2 12
506 1 6
633 1 3
418 1 6
253 2 12
253 2 12
506 1 6
633 1 3
418 1 6
253 2 12
253 2 12
506 1 6
633 1 6
418 1 6
253 2 12
253 2 12
506 1 6
633 1 6
418 1 6
243 + 236 + 238
3
239 v
HIGH-STATIC CONDENSER FAN
ICF
MCA MOCP
XL
584.4 800 *
540.0 700 *
262.0 350 1046.1
210.9 250 838.2
315.2 400 1167.8
623.9 800 *
575.8 700 *
279.9 350 1064.0
225.2 300 852.5
336.9 450 1189.5
524.5/259 800/450 * 889.0/518.0
675.7 800 * 1076.2
327.9 450 1331.6
263.9 350 1066.9
394.5 500 1486.3
553.7/300 800/500 * 918.2/581.0
517.7/272 700/450 * 918.2/581.0
355.6 450 1359.3
286.4 350 1089.4
427.5 500 1519.3
553.7/378 800/600 * 918.2/743.0
517.7/343 700/600 * 918.2/743.0
383.9 500 1387.6
309.0 400 1112.0
461.8 600 1553.6
541/463 700/600 * 821.2/722.4
489/443 700/600 * 798.4/705.2
426 500 1210.5
343 400 970.6
513 600 1365.4
619/463 800/600 * 983.2/722.4
560/443 800/600 * 960.4/705.2
462 500 1465.5
372 450 1174.6
556 700 1647.4
681/534 800/700 * 1045.8/814.6
617/509 800/700 * 1017.0/798.4
518 600 1521.5
417 500 1219.8
623 700 1714.7
681/612 800/800 * 1045.8/976.6
617/576 800/800 * 1017.0/976.6
546 600 1549.8
439 500 1242.4
657 800 1748.9
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
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%.
57
CONTROL CIRCUIT
Rec Fuse Size
V-Hz
(Single Ph)
WD XL WD
865.1 * 700 115-60
849.2 * 600 115-60
417.1 300 300 115-60
335.2 250 250 115-60
471.8 350 350 230-60
904.7 * 700 115-60
885.0 * 700 115-60
435.0 350 350 115-60
349.5 250 250 115-60
493.5 400 400 230-60
* 700/350 115-60
* 800 115-60
527.6 400 400 115-60
423.9 300 300 115-60
597.3 450 450 230-60
* 700/400 115-60
* 600/350 115-60
555.3 400 400 115-60
446.4 350 350 115-60
630.3 500 500 230-60
* 700/500 115-60
* 600/450 115-60
583.6 450 450 115-60
469.0 350 350 115-60
664.6 600 600 230-60
* 700/600 115-60
* 600/500 115-60
581.5 500 500 115-60
467.6 400 400 115-60
669.4 600 600 230-60
* 700/600 115-60
* 700/500 115-60
661.5 500 500 115-60
531.6 400 400 115-60
758.4 600 600 230-60
* 800/600 115-60
* 700/600 115-60
717.5 600 600 115-60
576.8 450 450 115-60
825.7 700 700 230-60
* 800/700 115-60
* 700/700 115-60
745.8 600 600 115-60
599.4 500 500 115-60
859.9 700 700 230-60
4
= 100 x
239
= 1.7%
MCA and
MOCP
30
30
30
30
15
30
30
30
30
15
30
30
30
30
15
30
30
30
30
15
30
30
30
30
15
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)