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Table 2 — Electrical Data — Units Without Optional Powered Convenience Outlet (cont)
VOLTAGE
NOMINAL
RANGE
UNIT
POWER SUPPLY
50PG
Min
Max
Volts-Ph-Hz
208/230-3-60
187
253
12
460-3-60
414
506
575-3-60
518
633
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
*Heater capacity (kW) is based on heater voltage of 208v, 240v, 480v, or 600v. If power distribu-
tion voltage to unit varies from rated heater voltage, heater kW will vary accordingly.
{ 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 percentage of voltage imbalance.
% Voltage Imbalance
= 100 x
COMPRESSOR
OFM
(Each)
EXHAUST
RLA
LRA
Qty
FLA
17.6
123
2
1.9
7.7
50
2
1.0
6.1
40
2
0.8
max voltage deviation from average voltage
average voltage
ELECTRIC HEAT
POWER
IFM
IFM
FLA
FLA
TYPE
FLA
—
20.0/ 23.1
30.0/ 34.6
Low
7.5
50.0/ 57.7
70.0/ 80.8
80.0/ 92.4
100.1/115.5
—
—
20.0/ 23.1
30.0/ 34.6
50.0/ 57.7
High
10.2
70.0/ 80.8
80.0/ 92.4
100.1/115.5
—
20.0/ 23.1
30.0/ 34.6
Low
7.5
50.0/ 57.7
70.0/ 80.8
80.0/ 92.4
100.1/115.5
3.0
—
20.0/ 23.1
30.0/ 34.6
50.0/ 57.7
High
10.2
70.0/ 80.8
80.0/ 92.4
100.1/115.5
—
11.5
17.3
Low
3.4
28.9
40.4
46.2
57.7
—
—
11.5
17.3
28.9
High
4.8
40.4
46.2
57.7
—
11.5
17.3
Low
3.4
28.9
40.4
46.2
57.7
1.2
—
11.5
17.3
28.9
High
4.8
40.4
46.2
57.7
—
13.9
23.1
Low
32.3
37.0
46.2
—
2.8
—
13.9
23.1
High
32.3
37.0
46.2
Example: Supply voltage is 230 ---3 ---60
AB = 224 v
BC = 231 v
AC = 226 v
Average Voltage =
Determine maximum deviation from average voltage.
(AB) 227 – 224 = 3 v
(BC) 231 – 227 = 4 v
(AC) 227 – 226 = 1 v
Maximum deviation is 4 v.
Determine percent of voltage imbalance.
% Voltage Imbalance
= 100 x
= 1.76%
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.
3. Single point kits CRSINGLE028A00 and CRSINGLE031A00 are not required if field ---supplied
pressure connectors are used. Factory ---installed heaters contain terminal blocks when
combined MOCP is greater than 60 amps.
13
DISCONNECT
POWER SUPPLY
Nominal
MCA
MOCP†
FLA
kW*
—
50.9/ 50.9
60/ 60
53/ 53 310/310
7.5/10.0
50.9/ 50.9
60/ 60
53/ 53 310/310
11.3/15.0
50.9/ 52.6
60/ 60
53/ 53 310/310
18.8/25.0
71.9/ 81.5
80/ 90
66/ 75 310/310
26.3/35.0
96.9/110.4 100/125
89/102 310/310
30.0/40.0
109.4/124.9 110/125 101/115 310/310
37.6/50.0
134.5/124.9 150/150 124/141 310/310
—
53.6/ 53.6
60/ 60
57/ 57 327/327
7.5/10.0
53.6/ 53.6
60/ 60
57/ 57 327/327
11.3/15.0
53.6/ 56.0
60/ 60
57/ 57 327/327
18.8/25.0
75.3/ 84.9
80/ 90
69/ 78 327/327
26.3/35.0
100.3/113.8 110/125
92/105 327/327
30.0/40.0
112.8/128.3 125/150 104/118 327/327
37.6/50.0
137.9/128.3 150/150 127/145 327/327
—
53.9/ 53.9
60/ 60
57/ 57 314/314
7.5/10.0
53.9/ 53.9
60/ 60
57/ 57 314/314
11.3/15.0
53.9/ 56.4
60/ 60
57/ 57 314/314
18.8/25.0
75.6/ 85.3
80/ 90
70/ 78 314/314
26.3/35.0
100.6/114.1 110/125
93/105 314/314
30.0/40.0
113.1/128.6 125/150 104/118 314/314
37.6/50.0
138.3/128.6 150/150 127/145 314/314
—
56.6/ 56.6
60/ 60
60/ 60 331/331
7.5/10.0
56.6/ 56.6
60/ 60
60/ 60 331/331
11.3/15.0
56.6/ 59.8
60/ 60
60/ 60 331/331
18.8/25.0
79.0/ 88.6
80/ 90
73/ 82 331/331
26.3/35.0
104.0/117.5 110/125
96/108 331/331
30.0/40.0
116.5/132.0 125/150 107/121 331/331
37.6/50.0
141.6/132.0 150/150 130/148 331/331
—
22.7
25
24
10.0
22.7
25
24
15.0
25.9
30
24
25.0
40.4
45
37
35.0
54.8
60
50
40.0
62.0
70
57
50.0
62.0
70
70
—
24.1
25
26
10.0
24.1
25
26
15.0
27.6
30
26
25.0
42.1
45
39
35.0
56.5
60
52
40.0
63.8
70
59
50.0
63.7
70
72
—
23.9
25
25
10.0
23.9
25
25
15.0
27.4
30
25
25.0
41.9
45
39
35.0
56.3
60
52
40.0
63.5
70
58
50.0
63.5
70
72
—
25.3
30
27
10.0
25.3
30
27
15.0
29.1
30
27
25.0
43.6
45
40
35.0
58.0
60
53
40.0
65.3
70
60
50.0
65.2
70
73
—
18.1
20
19
15.0
20.9
25
19
25.0
32.4
35
30
35.0
43.9
45
40
40.0
49.8
50
46
50.0
49.7
60
56
—
18.1
20
19
15.0
20.9
25
19
25.0
32.4
35
30
35.0
43.9
45
40
40.0
49.8
50
46
50.0
49.7
60
56
224 + 231 + 226
3
681
=
3
=
227
4
227
SIZE
LRA
132
132
132
132
132
132
132
141
141
141
141
141
141
141
135
135
135
135
135
135
135
144
144
144
144
144
144
144
106
106
106
106
106
106
106
106
106
106
106
106
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