Bryant Single Package Rooftop Electric Cooling/Gas Heating Units 580G User Manual
Page 12
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.
—12—