Bryant 558G, Installation, Start-Up And Service Instructions Manual

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Table 3— Electrical Data — 580G,H240-360
UNIT
SIZE
580G,H
NOMINAL
VOLTAGE
(3 Ph 60 Hz)
VOLTAGE
RANGE
COMPRESSOR
OFM IFM
POWER
EXHAUST
COMBUSTION
FAN MOTOR
POWER SUPPLY
No. 1 No. 2
Min Max RLA LRA RLA LRA Qty Hp
FLA
(ea)
Hp FLA FLA LRA FLA MCA MOCP*
240
208/230 187 254 39.1 228 25.6 160 2 1 5.3
5
16.7/
15.2 — — 0.96 101.8/100.3 125/125
23.6 41.6 0.96 125.4/123.9 150/150
10
30.8/
28.0 — — 0.96 115.9/113.1 150/150
23.6 41.6 0.96 139.5/136.7 175/175
15
46.2/
42.0 — — 0.96 131.3/127.1 150/150
23.6 41.6 0.96 154.9/150.7 175/175
460 414 508 19.9 114 11.5 80 2 1 2.7
5 7.6
— — 0.50 49.4 60
12.6 23.6 0.50 62.0 80
10 14.0
— — 0.50 55.8 70
12.6 23.6 0.50 68.4 80
15 21.0
— — 0.50 62.8 80
12.6 23.6 0.50 75.4 90
575 518 632 16.0 91 9.6 64 2 1 2.4
5 6.1
— — 0.50 40.5 50
12.6 23.6 0.50 53.1 60
10 11.0
— — 0.50 45.4 60
12.6 23.6 0.50 58.0 70
15 17.0
— — 0.50 51.4 60
12.6 23.6 0.50 64.0 80
300
208/230 187 254 39.1 228 39.1 228 2 1 5.3
7.5
24.2/
22.0 — — 0.96 122.8/120.6 150/150
23.6 41.6 0.96 146.4/144.2 175/175
10
30.8/
28.0 — — 0.96 129.4/126.6 150/150
23.6 41.6 0.96 153.0/150.2 175/175
15
46.2/
42.0 — — 0.96 144.8/140.6 175/175
23.6 41.6 0.96 168.4/164.0 200/200
460 414 508 19.9 114 19.9 114 2 1 2.7
7.5 11.0
— — 0.50 61.2 80
12.6 23.6 0.50 73.8 90
10 14.0
— — 0.50 64.2 80
12.6 23.6 0.50 76.8 90
15 21.0
— — 0.50 71.2 90
12.6 23.6 0.50 83.8 100
575 518 632 16.0 91 16.0 91 2 1 2.4
7.5 9.0
— — 0.50 49.8 60
12.6 23.6 0.50 62.4 70
10 11.0
— — 0.50 51.8 60
12.6 23.6 0.50 64.4 80
15 17.0
— — 0.50 57.8 70
12.6 23.6 0.50 70.4 80
LEGEND
FLA — Full Load Amps
HACR — Heating, Air Conditioning and Refrigeration
IFM
— Indoor (Evaporator) Fan Motor
LRA — Locked Rotor Amps
MCA — Minimum Circuit Amps
MOCP — Maximum Overcurrent Protection
NEC
— National Electrical Code
OFM — Outdoor (Condenser) Fan Motor
RLA — Rated Load Amps
*Fuse or HACR circuit breaker.
or
NOTES:
1. In compliance with NEC requirements for multimotor and combina-
tion load equipment (refer to NEC Articles 430 and 440), the over-
current protective device for the unit shall be fuse or HACR breaker.
Canadian units may be fuse or circuit breaker.
2. Unbalanced 3-Phase Supply Voltage
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.
% Voltage Imbalance
max voltage deviation from average voltage
= 100 x
average voltage
EXAMPLE: Supply voltage is 460-3-60.
AB = 452 v
BC = 464 v
AC = 455 v
452 + 464 + 455
Average Voltage =
3
1371
=
3
= 457
Determine maximum deviation from average voltage.
(AB) 457 − 452 = 5 v
(BC) 464 − 457 = 7 v
(AC) 457 − 455 = 2 v
Maximum deviation is 7 v.
Determine percent voltage imbalance.
7
% Voltage Imbalance = 100 x
457
= 1.53%
This amount of phase imbalance is satisfactory as it is below the
maximum allowable 2%.
IMPORTANT: If the supply voltage phase imbalance is more than
2%, contact your local electric utility company immediately.
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