Electrical Data - Bryant 579F User Manual

ELECTRICAL DATA — 581A210-300 WITH OPTIONAL CONVENIENCE OUTLET
VOLTAGE
NOMINAL
RANGE
UNIT VOLTAGE No. 1
581A (3 Ph,
Min Max RLA
60 Hz)
208/230 187 253 16.7
210 460 414 506 9
575 518 633 7
208/230 187 253 22.4
240
460 414 506 10.7
575 518 633 9.3
208/230 187 253 47.1
300 460 414 506 19.6
575 518 633 15.8
FLA — Full Load Amps
HACR — Heating, Air Conditioning and
Refrigeration
IFM — Indoor (Evaporator) Fan Motor
LRA — Locked Rotor Amps
MCA — Minimum Circuit Amps
*Fuse or HACR circuit breaker.
NOTES:
1. In compliance with NEC requirements for multimotor and combination load equipment
(refer to NEC Articles 430 and 440), the overcurrent 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 of voltage imbalance.
% Voltage Imbalance
max voltage deviation from average voltage
= 100 x
ELECTRICAL DATA — 581A (cont)
COMPRESSOR
No. 2 No. 3
LRA RLA LRA RLA LRA Qty
130 16.7 130 22.4 184 4
70 9 70 10.7 90 4
55 7 55 9.3 73 4
184 22.4 184 22.4 184 4
90 10.7 90 10.7 90 4
73 9.3 73 9.3 73 4
245 47.1 245 — — 6
125 19.6 125 — — 6
100 15.8 100 - - 6
LEGEND
MCA — Minimum Circuit Amps
MOCP— Maximum Overcurrent Protection
NEC — National Electrical Code
OFM — Outdoor (Condenser) Fan Motor
RLA — Rated Load Amps
average voltage
POWER
OFM IFM
EXHAUST
FLA
Hp Hp FLA Qty Hp
(ea)
—
3.7 10.6/ 9.6
2
—
0.25 1.5 5 16.7/15.2
2
—
7.5 24.2/22
2
—
3.7 4.8
2
—
0.25 0.7 5 7.6
2
—
7.5 11
2
—
3 3.9
2
—
0.25 0.7 5 6.1
2
—
7.5 9
2
—
3.7 10.6/ 9.6
2
—
5 16.7/15.2
2
0.25 1.5
—
7.5 24.2/22
2
—
10 30.8/28
2
—
3.7 4.8
2
—
5 7.6
2
0.25 0.7
—
7.5 11
2
—
10 14
2
—
5 6.1
2
—
0.25 0.7 7.5 9
2
—
10 11
2
—
5 16.7/15.2
2
—
0.25 1.5 7.5 24.2/22
2
—
10 30.8/28
2
—
5 7.6
2
—
0.25 0.7 7.5 11
2
—
10 14
2
—
5 6.1
2
—
0.25 0.7 7.5 9
2
—
10 11
2
Example: Supply voltage is 460-3-60.
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 of voltage imbalance.
% Voltage Imbalance = 100 x
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.
277
COMBUSTION
POWER SUPPLY
FAN MOTOR
FLA
FLA MCA
(ea)
— — 83/ 82
1 5.9 95/ 94
— — 89/ 88
0.5
1 5.9 101/ 99
— — 97/ 94
1 5.9 109/106
— — 42
1 3.1 48
— — 45
0.3
1 3.1 51
— — 48
1 3.1 54
— — 35
1 2.4 40
— — 38
0.24
1 2.4 42
— — 40
1 2.4 45
— — 94/ 93
1 5.9 106/105
— — 101/ 99
1 5.9 112/111
0.5
— — 108/106
1 5.9 120/118
— — 117/113
1 5.9 129/125
— — 45
1 3.1 52
— — 48
1 3.1 54
0.3
— — 52
1 3.1 58
— — 55
1 3.1 62
— — 42
1 2.4 47
— — 45
0.24
1 2.4 50
— — 47
1 2.4 52
— — 137/135
1 5.9 148/147
— — 144/142
0.5
1 5.9 156/154
— — 151/148
1 5.9 163/160
— — 59
1 3.1 65
— — 62
0.3
1 3.1 69
— — 65
1 3.1 72
— — 49
1 2.4 54
— — 52
0.24
1 2.4 57
— — 54
1 2.4 59
AB = 452 v
BC = 464 v
AC = 455 v
452 + 464 + 455
Average Voltage =
3
1371
=
3
=
457
7
457
= 1.53%
DISCONNECT
SIZE
MOCP* FLA
100/100 89/ 88
100/100 103/101
100/100 96/ 94
110/100 110/108
100/100 105/102
125/125 118/116
50 45
50 52
50 48
60 56
50 52
60 59
40 38
45 43
45 40
50 46
45 44
50 49
100/100 102/101
125/125 116/115
110/100 109/107
125/125 123/121
125/125 118/115
125/125 131/129
125/125 125/122
150/150 139/136
50 49
60 56
50 52
60 59
60 56
60 63
60 60
70 67
50 46
50 51
50 49
50 55
50 51
60 57
175/175 144/142
175/175 157/155
175/175 152/150
200/200 166/163
175/175 160/157
200/200 173/170
60 62
80 69
80 66
80 73
80 69
90 77
60 52
60 57
60 55
60 60
60 57
60 63