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UNIT
NOMINAL
IFM
PA1R
V-PH-Hz
TYPE
Std
208/230-1-60
Alt
Std
060
208/230-3-60
(5 Ton)
Alt
Std
460-3-60
Alt
208/230-3-60
Std
072
(6 Ton)
460-3-60
Std
LEGEND
COMPR — Compressor
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
*Available with field-installed accessory heaters only. 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.
†Used to determine minimum disconnect per NEC.
**Fuse or HACR circuit breaker.
††Fusing on single-point box provides the required branch circuit
protection.
NOTES:
1. In compliance with NEC requirements for multimotor and combina-
tion load equipment (refer to NEC Articles 430 and 440), the over-
current protective device 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 percent
of voltage imbalance.
Table 2 — Electrical Data (cont)
VOLTAGE
COMPR
OFM
RANGE
(each)
Min
Max
RLA
LRA
FLA
187
254
30.5
141
1.4
187
254
17.7
110
1.4
414
508
8.6
55
0.8
187
254
23.6
146.0
1.4
414
508
10.6
73.0
0.8
IFM
ELECTRIC HEAT*
Nominal
FLA
FLA
kW
—
—
4.9/ 6.5
23.5/27.1
6.5/ 8.7
31.4/36.3
5.9
9.8/13.0
46.9/54.2
13.0/17.4
62.8/72.5
15.8/21.0
75.8/87.5
—
—
4.9/ 6.5
23.5/27.1
6.5/ 8.7
31.4/36.3
8.8
9.8/13.0
46.9/54.2
13.0/17.4
62.8/72.5
15.8/21.0
75.8/87.5
—
—
4.9/ 6.5
13.6/15.6
7.9/10.5
21.9/25.3
5.9
12.0/16.0
33.4/38.5
15.8/21.0
43.8/50.5
19.9/26.5
55.2/63.8
—
—
4.9/ 6.5
13.6/15.6
7.9/10.5
21.9/25.3
5.8
12.0/16.0
33.4/38.5
15.8/21.0
43.8/50.5
19.9/26.5
55.2/63.8
—
—
6.0
7.2
11.5
13.8
3.2
14.0
16.8
23.0
27.7
25.5
30.1
—
—
6.0
7.2
11.5
13.8
2.6
14.0
16.8
23.0
27.7
25.0
30.1
—
—
4.9/ 6.5
13.6/15.6
7.9/10.5
21.9/25.3
5.2
12.0/16.0
33.4/38.4
15.8/21.0
43.8/50.5
19.9/26.5
55.2/63.8
—
—
6.0
7.2
11.5
13.8
2.6
14.0
16.8
23.0
27.8
25.5
30.7
% Voltage Imbalance
max voltage deviation from average voltage
= 100 x
EXAMPLE: Supply voltage is 460-3-60.
AB = 452 v
BC = 464 v
AC = 455 v
Average Voltage =
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.
% Voltage Imbalance = 100 x
This amount of phase imbalance is satisfactory as it is below the maxi-
mum allowable 2%.
IMPORTANT:
If the supply voltage phase imbalance is more than 2%,
contact your local electric utility company immediately.
—11—
DISCONNECT
POWER SUPPLY
MCA
MOCP**
FLA
42.7/ 42.7
50/ 50
41/ 41
42.7/ 42.7
50/ 50
41/ 41
46.6/ 52.7
50/ 60
43/ 49
66.0/ 75.1
70/ 80††
61/ 69
85.9/ 98.0
90/100††
79/ 90
102.2/116.8
110/125††
94/107
45.3/ 45.3
60/ 60
44/ 44
45.3/ 45.3
60/ 60
44/ 44
49.9/ 55.9
60/ 60
46/ 52
69.3/ 78.3
70/ 80††
64/ 72
89.2/101.3
90/110††
82/ 93
105.5/120.0
110/125††
97/110
29.4/29.4
35/35
29/29
29.4/29.4
35/35
29/29
34.7/38.9
40/40
32/36
49.1/55.5
50/60
45/51
62.1/70.5
70/80††
57/65
76.4/87.1
80/90††
70/80
29.3/29.3
40/ 40
29/29
29.3/29.3
40/ 40
29/29
35.3/39.5
45/ 45
32/36
49.6/56.0
60/ 60
45/51
62.6/71.1
70/ 80††
57/65
77.0/87.6
80/100††
70/80
14.8
20
15
14.8
20
15
21.3
25
20
25.0
30
23
38.6
40
36
41.6
45
38
14.2
20
14
14.2
20
14
21.0
25
19
24.8
30
22
38.3
45
35
41.3
45
38
36.1/36.1
45/45
35/35
36.1/36.1
45/45
35/35
36.1/38.1
45/45
35/35
48.2/54.6
50/60
44/50
61.2/69.6
70/70††
56/64
75.6/86.2
80/90††
70/79
16.7
20
16
16.7
20
16
20.5
25
19
24.3
25
22
37.8
40
35
41.6
45
38
average voltage
452 + 464 + 455
3
1371
=
3
= 457
7
457
= 1.53%
SIZE†
LRA
155/155
155/155
155/155
155/155
155/155
155/155
178/178
178/178
178/178
178/178
178/178
178/178
124/124
124/124
124/124
124/124
124/124
124/124
145/145
145/145
145/145
145/145
145/145
145/145
63
63
63
63
63
63
73
73
73
73
73
73
191/191
191/191
191/191
191/191
191/191
191/191
90
90
90
90
90
90
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