Table 3—Electrical Data
UNIT 50GL
SIZE
V-PH-HZ
VOLTAGE
RANGE
COMPRESSOR
OFM
IFM
ELECTRIC HEAT
POWER SUPPLY
Min
Max
RLA
LRA
FLA
FLA
Nominal kW*
FLA
MCA
Max Fuse or CRCT Breaker
MOCP
030
208/230-3-60
187
253
9.6
63.0
0.8
2.1
-/-
3.8/5.0
7.5/10.0
-/-
10.4/12.0
20.8/24.1
14.9/14.9
15.7/17.7
28.7/32.7
20/20
20/20
30/35
-
-
-
036
208/230-3-60
187
253
12.2
77.0
0.8
3.6
-/-
3.8/5.0
7.5/10.0
11.3/15.0
-/-
10.4/12.0
20.8/24.1
31.3/36.1
19.7/19.7
19.7/19.7
30.6/34.6
43.6/49.6
25/25
25/25
35/35
45/50
-
-
-
-
460-3-60
414
506
5.1
35.0
0.8
1.9
-
5.0
10.0
15.0
-
6.0
12.0
18.0
9.1
9.9
17.4
24.9
15
15
20
25
-
-
-
-
042
208/230-3-60
187
253
13.8
88.0
1.6
4.1
-/-
3.8/5.0
7.5/10.0
11.3/15.0
15.0/20.0
-/-
10.4/12.0
20.8/24.1
31.3/36.1
41.6/48.0
22.2/22.2
22.2/22.2
31.2/35.2
44.2/50.2
57.1/65.1
30/30
30/30
35/40
45/60
-
-
-
-
-
60/70
460-3-60
414
506
6.3
39.0
0.9
2.0
-
5.0
10.0
15.0
20.0
-
6.0
12.0
18.0
24.1
10.7
10.7
17.5
25.1
32.6
15
15
20
30
35
-
-
-
-
-
048
208/230-3-60
187
253
14.7
91.0
1.6
4.1
-/-
3.8/5.0
7.5/10.0
11.3/15.0
15.0/20.0
-/-
10.4/12.0
20.8/24.1
31.3/36.1
41.7/48.1
24.1/24.1
24.1/24.1
31.2/35.2
44.2/50.2
57.1/65.1
30/30
30/30
35/40
45/60
-
-
-
-
-
60/70
460-3-60
414
506
6.5
46.0
0.9
2.0
-
5.0
10.0
15.0
20.0
-
6.0
12.0
18.0
24.1
11.0
11.0
17.5
25.1
32.6
15
15
20
30
35
-
-
-
-
-
060
208/230-3-60
187
253
18.1
137.0
1.6
6.2
-/-
3.8/5.0
7.5/10.0
11.3/15.0
15.0/20.0
-/-
10.4/12.0
20.8/24.1
31.3/36.1
41.6/48.0
30.4/30.4
30.4/30.4
33.8/37.8
46.8/52.9
59.7/67.7
35/35
35/35
35/40
50/60
-
-
-
-
-
60/70
460-3-60
414
506
9.0
62.0
0.9
3.2
-
5.0
10.0
15.0
20.0
-
6.0
12.0
18.0
24.1
15.4
15.4
19.0
26.6
34.1
20
20
20
30
35
-
-
-
-
-
* Heater capacity (KW) based on heater voltage of 208v, 240v, & 480v. If power distribution voltage to unit varies from rated heater voltage, heater KW will vary
accordingly.
452 = 5 v
457 = 7 v
455 = 2 v
LEGEND
FLA
— Full Load Amps
LRA
— Locked Rotor Amps
MCA
— Minimum Circuit Amps
MOCP — Maximum Overcurrent Protection
RLA
— Rated Load Amps
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 Power Supply fuse . Canadian 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 volt-
age is greater than 2%.
Use the following formula to determine
the percentage 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 + 464 + 455
Average Voltage =
3
1371
=
3
= 457
Determine maximum deviation from average voltage.
(AB) 457
(BC) 464
(AC) 457
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.
®
CKT BKR — Circuit Breaker
10
