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Step 6 — Wire Field Power Supply
WARNING
To avoid possible injury or death due to electrical shock, open
the power supply disconnect switch and secure it in an open
position during installation. Install lockout tag.
CAUTION
Use only copper conductors for field-installed electrical
wiring. Unit terminals are not designed to accept other types of
conductors. Failure to heed this warning could result in
equipment damage.
50PSW UNIT
SIZE
025
035
049
061
071
122
180
210
240
360
420
LEGEND
LEGEND
LRA
—
Locked Rotor Amps
MCA
—
Minimum Circuit Amps
Table 4 — 50PSW Electrical Data
VOLTAGE
(V-Ph-Hz)
QTY
208/230-1-60
1
265-1-60
1
208/230-3-60
1
460-3-60
1
208/230-1-60
1
265-1-60
1
208/230-3-60
1
460-3-60
1
208/230-1-60
1
208/230-3-60
1
460-3-60
1
208/230-1-60
1
208/230-3-60
1
460-3-60
1
208/230-1-60
1
208/230-3-60
1
460-3-60
1
208/230-1-60
2
208/230-3-60
2
460-3-60
2
575-3-60
2
208/230-3-60
1
460-3-60
1
575-3-60
1
208/230-3-60
1
460-3-60
1
575-3-60
1
208/230-3-60
2
460-3-60
2
575-3-60
2
208/230-3-60
2
460-3-60
2
575-3-60
2
208/230-3-60
2
460-3-60
2
575-3-60
2
All field wiring must comply with local and national fire, safety
and electrical codes. Power to the unit must be within the
operating voltage range indicated on the unit's nameplate. On
three phase units, phases must be balanced within 2%.
Properly sized fuse or HACR (heating, air-conditioning, and
refrigeration) circuit breakers must be installed for branch circuit
protection. See equipment rating plate for maximum size.
The unit is supplied with an opening for attaching conduit. Be
certain to connect the ground lead to the ground lug in the control
box. Connect the power leads as indicated on the unit wiring
diagram. See Table 4 and Fig. 7-15.
COMPRESSOR
RLA
LRA
11.7
58.3
9.1
54.0
6.5
55.4
3.5
28
15.6
83.0
13.0
72.0
11.6
73.0
5.7
38.0
21.2
104.0
14.0
83.1
6.4
41.0
26.9
152.9
16.5
110.0
7.2
52.0
29.7
179.2
17.6
136.0
8.5
66.1
28.3
178.0
19.2
136.0
8.7
66.1
6.9
55.3
48.1
245.0
18.6
125.0
14.7
100.0
55.8
340.0
26.9
173.0
23.7
132.0
33.3
239.0
17.9
125.0
12.8
80.0
48.1
245.0
18.6
125.0
14.7
100.0
55.8
340.0
26.9
173.0
23.7
132.0
LEGEND
RLA
—
Rated Load Amps
11
MCA
MAX FUSE
14.6
25
11.4
20
8.1
15
4.4
15
19.5
35
16.3
25
14.5
25
7.1
15
26.5
45
17.5
30
8.0
15
33.6
60
20.6
35
9.0
15
37.1
60
22.0
35
10.6
15
63.7
90
43.2
60
19.6
25
15.5
20
60.1
100
23.3
40
18.4
30
69.8
125
33.6
60
29.6
50
74.9
100
40.3
50
28.8
40
108.2
150
41.9
60
33.1
45
125.6
175
60.5
80
53.3
70
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