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NOMINAL
UNIT
VOLTAGE
564A/764A
(V-Ph-Hz)
024
208/230-1-60
030
208/230-1-60
208/230-1-60
036
208/230-3-60
208/230-1-60
042
208/230-3-60
208/230-1-60
048
208/230-3-60
230-1-60
060
208/230-3-60
460-3-60
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 208 v, 240 v, or
480 v. If power distribution 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 and
equipment (refer to NEC Articles 430 and 440), the overcurrent protective de-
vice for the unit shall be fuse or HACR 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
max voltage deviation from average voltage
= 100 x
average voltage
Table 2 — Electrical Data
VOLTAGE
COMPRESSOR
RANGE
Min
Max
RLA
LRA
187
254
10.9
61.0
187
254
15.2
69.4
187
254
15.9
86.0
187
254
8.9
64.5
187
254
18.5
97.6
187
254
10.9
73.0
187
254
21.3
107.0
187
254
12.3
73.0
207
254
26.9
128.0
187
254
17.7
128.0
414
508
9.0
63.0
OFM
IFM
ELECTRIC HEAT
Nominal
FLA
FLA
FLA
kW*
—/—
—/—
0.9
2.4
3.8/ 5.0
18.1/20.8
7.5/10.0
36.1/41.7
—/—
—/—
3.8/ 5.0
18.1/20.8
1.5
2.4
7.5/10.0
36.1/41.7
11.3/15.0
54.2/62.5
—/—
—/—
3.8/ 5.0
18.1/20.8
1.5
2.8
7.5/10.0
36.1/41.7
11.3/15.0
54.2/62.5
15.0/20.0
72.2/83.3
—/—
—/—
3.8/ 5.0
10.4/12.0
1.5
2.8
7.5/10.0
20.8/24.1
11.3/15.0
31.3/36.1
15.0/20.0
41.7/48.1
—/—
—/—
3.8/ 5.0
18.1/20.8
1.5
2.8
7.5/10.0
36.1/41.7
11.3/15.0
54.2/62.5
15.0/20.0
72.2/83.3
—/—
—/—
3.8/ 5.0
10.4/12.0
1.5
2.8
7.5/10.0
20.8/24.1
11.3/15.0
31.3/36.1
15.0/20.0
41.7/48.1
—/—
—/—
3.8/ 5.0
18.1/20.8
1.5
4.2
7.5/10.0
36.1/41.7
11.3/15.0
54.2/62.5
15.0/20.0
72.2/83.3
—/—
—/—
3.8/ 5.0
10.4/12.0
1.5
4.2
7.5/10.0
20.8/24.1
11.3/15.0
31.3/36.1
15.0/20.0
41.7/48.1
—
5.0
20.8
1.4
6.2
10.0
41.7
15.0
62.5
20.0
83.3
—/—
—/—
3.8/ 5.0
10.4/12.0
1.4
6.2
7.5/10.0
20.8/24.1
11.3/15.0
31.3/36.1
15.0/20.0
41.7/48.1
—
5.0
0.7
3.2
10.0
12.0
15.0
18.0
20.0
24.1
EXAMPLE: Supply voltage is 460-3-60
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 percentage of voltage imbalance:
% Voltage imbalance = 100 x
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.
—10—
POWER SUPPLY
MCA
MOCP
16.9/ 16.9
20/ 20
25.6/ 29.0
30/ 30
48.1/ 55.1
50/ 60
22.9/ 22.9
30/ 30
25.6/ 29.0
30/ 30
48.1/ 55.1
50/ 60
70.7/ 81.1
80/ 90†
24.2/ 24.2
30/ 30
26.1/ 29.5
30/ 30
48.6/ 55.6
50/ 60
71.2/ 81.6
80/ 90†
93.6/107.7
100/110†
15.4/ 15.4
20/ 20
16.5/ 18.5
20/ 20
29.6/ 33.6
30/ 35
42.6/ 48.6
45/ 50
55.6/ 63.6
60/ 70†
27.4/ 27.4
35/ 35
27.4/ 29.5
35/ 35
48.6/ 55.6
50/ 60
71.2/ 81.6
80/ 90†
93.8/107.7
100/110†
17.9/ 17.9
25/ 25
17.9/ 18.5
25/ 25
29.6/ 33.6
30/ 35
42.6/ 48.6
45/ 50
55.6/ 63.6
60/ 70†
32.3/ 32.3
40/ 40
32.3/ 32.3
40/ 40
50.4/ 57.3
60/ 60
72.9/ 83.4
80/ 90†
95.5/109.4
100/110†
21.1/ 21.1
25/ 25
21.1/ 21.1
25/ 25
31.3/ 35.3
35/ 40
44.3/ 50.4
45/ 60
57.4/ 65.4
60/ 70†
—
41.2
50
41.2
50
59.8
60
85.9
90†
111.9
125†
29.7/ 29.7
35/ 35
29.7/ 29.7
35/ 35
33.8/ 37.8
35/ 40
46.8/ 52.9
50/ 60
59.9/ 67.9
60/ 70†
—
15.2
20
6.0
15.2
20
19.0
20
26.6
30
34.1
35
AB = 452 v
BC = 464 v
AC = 455 v
452 + 464 + 455
Average voltage =
3
= 457
7
457
= 1.53%
DISCONNECT
SIZE
FLA
LRA
16/ 16
24/ 27
68
44/ 51
22/ 22
24/ 27
79
44/ 51
65/ 75
23/ 23
24/ 27
45/ 51
96
66/ 75
86/ 99
15/ 15
15/ 17
27/ 31
74
39/ 45
51/ 59
26/ 26
26/ 27
45/ 51
107
66/ 75
86/ 99
17/ 17
17/ 17
27/ 31
83
39/ 45
51/ 59
31/ 31
31/ 31
46/ 53
121
67/ 77
88/101
21/ 21
21/ 21
29/ 32
87
41/ 46
53/ 60
40
40
55
141
79
103
29/ 29
29/ 29
31/ 35
146
43/ 49
55/ 62
15
15
18
71
24
31
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