Bryant Single Package Rooftop Electric Cooling/Gas Heating Units 580G User Manual
Page 13
Table 3— Electrical Data — 580G,H240-360 (cont)
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*
324
208/230
187
254
57.1
266
39.1
228
2
1
5.3
10
30.8/
28.0
—
—
0.96
151.9/149.1 200/200
23.6
41.6
0.96
175.5/172.7 225/225
15
46.2/
42.0
—
—
0.96
167.3/163.1 200/200
23.6
41.6
0.96
190.9/186.7 225/225
20
59.4/
54.0
—
—
0.96
180.5/175.1 225/225
23.6
41.6
0.96
204.1/198.7 250/250
460
414
508
25.6
120
19.9
114
2
1
2.7
10
14.0
—
—
0.50
71.3
90
12.6
23.6
0.50
83.9
100
15
21.0
—
—
0.50
78.3
100
12.6
23.6
0.50
90.9
110
20
27.0
—
—
0.50
84.3
100
12.6
23.6
0.50
96.9
110
575
518
632
20.5
96
16.0
91
2
1
2.4
10
11.0
—
—
0.50
57.4
70
12.6
23.6
0.50
70.0
90
15
17.0
—
—
0.50
63.4
80
12.6
23.6
0.50
76.0
90
20
22.0
—
—
0.50
68.4
80
12.6
23.6
0.50
81.0
100
360
208/230
187
254
57.1
266
57.1
266
2
1
5.3
10
30.8/
28.0
—
—
0.96
169.9/167.1 225/200
23.6
41.6
0.96
193.5/190.7 250/225
15
46.2/
42.0
—
—
0.96
185.3/181.1 225/225
23.6
41.6
0.96
208.9/204.7 250/250
20
59.4/
54.0
—
—
0.96
198.5/193.1 250/250
23.6
41.6
0.96
222.1/216.7 275/250
460
414
508
25.6
120
25.6
120
2
1
2.7
10
14.0
—
—
0.50
77.0
100
12.6
23.6
0.50
89.6
110
15
21.0
—
—
0.50
84.0
100
12.6
23.6
0.50
96.6
110
20
27.0
—
—
0.50
90.0
110
12.6
23.6
0.50
102.6
125
575
518
632
20.5
96
20.5
96
2
1
2.4
10
11.0
—
—
0.50
61.9
80
12.6
23.6
0.50
74.5
90
15
17.0
—
—
0.50
67.9
80
12.6
23.6
0.50
80.5
100
20
22.0
—
—
0.50
72.9
90
12.6
23.6
0.50
85.5
100
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.
—13—