Carrier R080-528 Installation Instructions Manual page 56

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
080 460-60 414
575-60 518
380-60 342
208/230-60 187
230-60 207
083
460-60 414
575-60 518
380-60 342
208/230-60 187
230-60 207
460-60 414
090
575-60 518
380-60 342
208/230-60 187
230-60 207
093
460-60 414
575-60 518
380-60 342
208/230-60 187
230-60 207
106 460-60 414
575-60 518
380-60 342
208/230-60 518
230-60 342
108
460-60 207
575-60 342
380-60 187
208/230-60 187
230-60 207
460-60 414
114
575-60 518
380-60 342
208/230-60 187
230-60 207
118
460-60 414
575-60 518
380-60 342
208/230-60 187
230-60 207
125 460-60 414
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 3
506 1 3
633 1 3
418 1 3
253 1 6
253 1 3
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 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
633 1 6
418 1 6
253 1 3
440 1 3
253 1 3
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 1 6
253 1 6
506 1 3
633 1 3
418 1 3
243 + 236 + 238
3
239 v
HIGH-STATIC CONDENSER FAN
ICF
MCA MOCP
XL WD
384.8 500 * 556.2
352.8 450 * 543.4
172.5 225 664.2 267.2
138.9 175 552.3 215.3
208.8 250 742.4 304.4
396.2 500 * 577.0
366.9 500 * 565.4
177.5 225 673.2 276.2
142.9 175 559.5 222.5
213.4 250 752.4 314.4
434.5 600 * 622.2
397.7 500 * 609.4
194.8 250 769.2 300.2
158.1 225 616.3 241.3
236.0 300 858.4 340.4
431.6 600 * 643.0
398.9 500 * 631.4
193.5 250 778.2 309.2
155.7 200 623.5 248.5
232.7 300 868.4 350.4
524.5 700 * 736.4
481.4 700 * 723.6
234.7 300 916.8 355.8
189.3 250 734.7 285.7
284.6 400 1022.2 402.2
488.3 600 * 747.7
450.2 600 * 734.2
219.1 300 922.1 361.1
176.2 250 738.6 289.6
263.8 350 1028.2 408.2
550.2 700 * 762.1
504.5 700 * 746.7
246.3 350 928.4 367.4
198.3 250 743.7 294.7
298.7 400 1036.3 416.3
542.7 700 * 802.1
502.2 600 * 786.2
243.1 300 946.1 385.1
195.8 250 758.2 309.2
292.4 400 1056.8 436.8
619.1 800 * 857.1
567.9 800 * 837.9
278.0 400 1042.5 413.5
222.7 300 835.2 332.2
335.8 450 1165.3 469.3
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%.
56
CONTROL CIRCUIT
Rec Fuse Size
V-Hz MCA and
(Single Ph)
XL WD
* 450 115-60
* 400 115-60
200 200 115-60
175 175 115-60
250 250 230-60
* 450 115-60
* 450 115-60
200 200 115-60
175 175 115-60
250 250 230-60
* 500 115-60
* 450 115-60
225 225 115-60
200 200 115-60
300 300 230-60
* 500 115-60
* 450 115-60
225 225 115-60
175 175 115-60
300 300 230-60
* 600 115-60
* 600 115-60
300 300 115-60
225 250 115-60
350 350 230-60
* 600 115-60
* 500 115-60
250 250 115-60
200 200 115-60
300 300 230-60
* 700 115-60
* 600 115-60
300 300 115-60
225 225 115-60
350 350 230-60
* 600 115-60
* 600 115-60
300 300 115-60
225 225 115-60
350 350 230-60
* 700 115-60
* 700 115-60
350 350 115-60
250 250 115-60
400 400 230-60
4
239
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
30
30
30
15
30
30
30
30
15
30
30
30
30
15
30
30
30
30
15