Carrier R080-528 Installation Instructions Manual page 55

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
— Minimum Circuit Ampacity (for wire sizing)
MCA
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.)
WD — Wye-Delta Start
— Across-the-Line Start
XL
*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
SUPPLY
# Power Supply
QTY. REQD
Conductors
Max
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 3
253 2 9
253 2 9
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 9
253 2 9
506 1 6
633 1 3
418 1 6
253 2 12
253 2 9
506 1 6
633 1 3
418 1 6
253 2 12
253 2 12
506 1 6
633 1 6
418 1 6
243 + 236 + 238
3
239 v
STANDARD CONDENSER FAN
ICF
MCA MOCP
XL
527.7 700 *
483.3 700 *
238.8 300 1022.9
191.0 250 818.3
288.9 400 1141.5
567.3 800 *
519.1 700 *
256.7 350 1040.8
205.3 250 832.6
310.6 400 1163.2
453.7/259 700/450 * 818.2/518.0
604.9 800 * 1005.4
298.9 400 1302.6
239.1 300 1042.1
361.6 500 1453.4
468.7/300 700/500 * 833.2/581.0
432.7/272 700/450 * 833.2/581.0
320.8 450 1324.5
256.6 350 1059.6
388.1 500 1479.9
468.7/378 700/600 * 833.2/743.0
432.7/343 700/600 * 833.2/743.0
349.1 450 1352.8
279.2 350 1082.2
422.4 500 1514.2
541/350 700/500 * 821.2/609.0
489/325 700/500 * 798.4/609.0
383 450 1167.1
306 350 932.8
467 500 1319.4
619/350 800/500 * 983.2/609.0
560/325 800/500 * 960.4/609.0
418 500 1422.1
334 400 1136.8
510 600 1601.4
681/404 800/600 * 1045.8/685.0
617/350 800/500 * 1017.0/659.0
468 600 1471.9
374 450 1176.6
570 700 1662.1
681/482 800/700 * 1045.8/847.0
617/447 800/700 * 1017.0/847.0
496 600 1500.2
396 500 1199.2
605 700 1696.4
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%.
55
CONTROL CIRCUIT
Rec Fuse Size
V-Hz
(Single Ph)
WD XL WD
808.5 * 600 115-60
792.6 * 600 115-60
393.9 300 300 115-60
315.3 225 225 115-60
445.5 350 350 230-60
848.0 * 700 115-60
828.4 * 600 115-60
411.8 300 300 115-60
329.6 250 250 115-60
467.2 350 350 230-60
* 600/350 115-60
* 700 115-60
498.6 350 350 115-60
399.1 300 300 115-60
564.4 450 450 230-60
* 600/400 115-60
* 600/350 115-60
520.5 400 400 115-60
416.6 300 300 115-60
590.9 450 450 230-60
* 600/500 115-60
* 600/450 115-60
548.8 400 400 115-60
439.2 350 350 115-60
625.2 500 500 230-60
* 700/450 115-60
* 600/400 115-60
538.1 450 450 115-60
429.8 350 350 115-60
623.4 500 500 230-60
* 700/450 115-60
* 700/400 115-60
618.1 500 500 115-60
493.8 400 400 115-60
712.4 600 600 230-60
* 800/500 115-60
* 700/450 115-60
667.9 600 600 115-60
533.6 450 450 115-60
773.1 700 700 230-60
* 800/600 115-60
* 700/600 115-60
696.2 600 600 115-60
556.2 450 450 115-60
807.4 700 700 230-60
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)