Bryant 583A User Manual
Page 20
ELECTRICAL DATA
UNIT
SIZE
583A
V-PH-Hz
VOLTAGE
RANGE
COMPRESSOR
OUTDOOR FAN
MOTOR
INDOOR FAN
MOTOR
POWER SUPPLY FUSE OR
HACR BRKR
Min
Max
RLA
LRA
FLA
FLA
MCA
MOCP*
024
208/230-1-60
187
253
10.3
56.0
0.8
2.0
15.7
25
030
208/230-1-60
187
253
13.5
73.0
0.8
2.1
19.8
30
208/230-3-60
187
253
9.0
63.0
0.8
2.1
14.2
20
036
208/230-1-60
187
253
16.7
97.0
0.8
3.6
25.3
40
208/230-3-60
187
253
11.2
75.0
0.8
3.6
18.4
25
460-3-60
414
506
5.4
37.5
0.9
1.9
9.6
15
042
208/230-1-60
187
253
17.9
104.0
1.6
4.1
28.1
45
208/230-3-60
187
253
12.4
88.0
1.6
4.1
21.2
30
460-3-60
414
506
6.1
44.0
0.9
2.0
10.5
15
048
208/230-1-60
187
253
19.5
104.0
1.6
4.1
30.1
45
208/230-3-60
187
253
12.4
88.0
1.6
4.1
21.2
30
460-3-60
414
506
5.8
44.0
0.9
2.0
10.2
15
060
208/230-1-60
187
253
28.8
169.0
1.6
6.2
43.8
60
208/230-3-60
187
253
17.3
123.0
1.6
6.2
29.4
45
460-3-60
414
506
9.0
62.0
0.9
3.2
15.4
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LEGEND
FLA
— Full Load Amps
HACR — Heating, Air Conditioning
and Refrigeration
LRA
— Locked Rotor Amps
MCA
— Minimum Circuit Amps
MOCP — Maximum Overcurrent Protection
RLA
— Rated Load Amps
*Fuse or HACR Breaker.
NOTES:
1. In compliance with NEC (National Electrical Code) 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. The CGA (Canadian Gas
Association) units may be fuse or circuit breaker.
2. Minimum wire size is based on 60 C copper wire. If other than
60 C wire is used, or if length exceeds wire length in table,
determine size from NEC.
3. 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-
age of 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
ϩ
464
ϩ
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 of 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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