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Table 3 — Electrical Data — Units With Optional Powered Convenience Outlet (cont)
VOLTAGE
NOMINAL
RANGE
UNIT
POWER SUPPLY
50PG
Min
Max
Volts-Ph-Hz
208/230-3-60
187
12
460-3-60
414
575-3-60
518
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)
RLA
LRA
Qty
FLA
253
17.6
123
2
1.9
506
7.7
50
2
1.0
633
6.1
40
2
0.8
max voltage deviation from average voltage
average voltage
ELECTRIC HEAT
POWER
IFM
IFM
EXHAUST
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.
17
DISCONNECT
POWER SUPPLY
Nominal
MCA
MOCP†
FLA
kW*
—
55.7/ 55.7
60/ 60
59/ 59 315/315
7.5/10.0
55.7/ 55.7
60/ 60
59/ 59 315/315
11.3/15.0
55.7/ 58.6
60/ 60
59/ 59 315/315
18.8/25.0
77.9/ 87.5
80/ 90
72/ 81 315/315
26.3/35.0
102.9/116.4 110/125
95/107 315/315
30.0/40.0
115.4/130.9 125/150 106/120 315/315
37.6/50.0
140.5/130.9 150/150 129/147 315/315
—
58.4/ 58.4
60/ 60
62/ 62 332/332
7.5/10.0
58.4/ 58.4
60/ 60
62/ 62 332/332
11.3/15.0
58.4/ 62.0
60/ 70
62/ 62 332/332
18.8/25.0
81.3/ 90.9
90/100
75/ 84 332/332
26.3/35.0
106.3/119.8 110/125
98/110 332/332
30.0/40.0
118.8/134.3 125/150 109/124 332/332
37.6/50.0
143.9/134.3 150/150 132/150 332/332
—
58.7/ 58.7
60/ 60
62/ 62 319/319
7.5/10.0
58.7/ 58.7
60/ 60
62/ 62 319/319
11.3/15.0
58.7/ 62.4
60/ 70
62/ 62 319/319
18.8/25.0
81.6/ 91.3
90/100
75/ 84 319/319
26.3/35.0
106.6/120.1 110/125
98/111 319/319
30.0/40.0
119.1/134.6 125/150 110/124 319/319
37.6/50.0
144.3/134.6 150/150 133/150 319/319
—
61.4/ 61.4
70/ 70
66/ 66 336/336
7.5/10.0
61.4/ 61.4
70/ 70
66/ 66 336/336
11.3/15.0
61.4/ 65.8
70/ 70
66/ 66 336/336
18.8/25.0
85.0/ 94.6
90/100
78/ 87 336/336
26.3/35.0
110.0/123.5 125/125 101/114 336/336
30.0/40.0
122.5/138.0 125/150 113/127 336/336
37.6/50.0
147.6/138.0 150/150 136/154 336/336
—
24.9
25
26
10.0
24.9
25
26
15.0
28.6
30
26
25.0
43.1
45
40
35.0
57.5
60
53
40.0
64.8
70
60
50.0
64.7
70
73
—
26.3
30
28
10.0
26.3
30
28
15.0
30.4
35
28
25.0
44.9
45
41
35.0
59.3
60
55
40.0
66.5
70
61
50.0
66.5
70
74
—
26.1
30
28
10.0
26.1
30
28
15.0
30.1
35
28
25.0
44.6
45
41
35.0
59.0
60
54
40.0
66.3
70
61
50.0
66.2
70
74
—
27.5
30
29
10.0
27.5
30
29
15.0
31.9
35
29
25.0
46.4
50
43
35.0
60.8
70
56
40.0
68.0
70
63
50.0
68.0
70
76
—
19.8
20
21
15.0
23.0
25
21
25.0
34.5
35
32
35.0
46.0
50
42
40.0
51.9
60
48
50.0
51.8
60
58
—
19.8
20
21
15.0
23.0
25
21
25.0
34.5
35
32
35.0
46.0
50
42
40.0
51.9
60
48
50.0
51.8
60
58
224 + 231 + 226
3
681
=
3
=
227
4
227
SIZE
LRA
134
134
134
134
134
134
134
143
143
143
143
143
143
143
137
137
137
137
137
137
137
146
146
146
146
146
146
146
108
108
108
108
108
108
108
108
108
108
108
108
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