Enertech Global, LLC
10
WS Rev. E Models
Installation and Operations Manual
Unit Electrical Data
Note: Proper Power Supply Evaluation
When any compressor bearing unit is connected to a weak power supply, starting current will generate a significant “sag” in the
voltage which reduces the starting torque of the compressor motor and increases the start time. This will influence the rest of
the electrical system in the building by lowering the voltage to the lights. This momentary low voltage causes “light dimming”.
The total electrical system should be evaluated with an electrician and HVAC technician. The evaluation should include all
connections, sizes of wires, and size of the distribution panel between the unit and the utility’s connection. The transformer
connection and sizing should be evaluated by the electric utility provider.
20D237‐30NN: WS Rev. E Electrical Data
Volts
Phase
LRA
RLA
00
208/230
1
109.0
16.7
0.0
0.0
16.7
20.9
35
01
208/230
1
109.0
16.7
0.5
0.0
17.2
21.4
35
10
208/230
1
109.0
16.7
0.0
4.0
20.7
24.9
40
11
208/230
1
109.0
16.7
0.5
4.0
21.2
25.4
40
20
208/230
3
84.0
11.2
0.0
0.0
11.2
14.0
25
21
208/230
3
84.0
11.2
0.5
0.0
11.7
14.5
25
30/35
460
3
44.0
5.6
0.0
0.0
5.6
7.0
15
00
208/230
1
144.2
24.4
0.0
0.0
24.4
30.5
50
01
208/230
1
144.2
24.4
0.5
0.0
24.9
31.0
50
10
208/230
1
144.2
24.4
0.0
5.5
29.9
36.0
60
11
208/230
1
144.2
24.4
0.5
5.5
30.4
36.5
60
20
208/230
3
110.0
16.0
0.0
0.0
16.0
20.0
35
21
208/230
3
110.0
16.0
0.5
0.0
16.5
20.5
35
30/35
460
3
52.0
7.8
0.0
0.0
7.8
9.8
15
00
208/230
1
178.0
30.8
0.0
0.0
30.8
38.5
60
01
208/230
1
178.0
30.8
0.5
0.0
31.3
39.0
70
10
208/230
1
178.0
30.8
0.0
5.5
36.3
44.0
70
11
208/230
1
178.0
30.8
0.5
5.5
36.8
44.5
70
20
208/230
3
136.0
19.6
0.0
0.0
19.6
24.5
40
21
208/230
3
136.0
19.6
0.5
0.0
20.1
25.0
45
30/35
460
3
66.1
8.2
0.0
0.0
8.2
10.3
15
00
208/230
1
148.0
32.1
0.0
0.0
32.1
40.1
70
01
208/230
1
148.0
32.1
0.5
0.0
32.6
40.6
70
10
208/230
1
148.0
32.1
0.0
5.5
37.6
45.6
70
11
208/230
1
148.0
32.1
0.5
5.5
38.1
46.1
70
20
208/230
3
164.0
23.2
0.0
0.0
23.2
29.0
50
21
208/230
3
164.0
23.2
0.5
0.0
23.2
29.5
50
30/35
460
3
75.0
11.2
0.0
0.0
11.2
14.0
25
00
208/230
1
185.0
32.1
0.0
0.0
32.1
40.1
70
01
208/230
1
185.0
32.1
0.5
0.0
32.6
40.6
70
10
208/230
1
185.0
32.1
0.0
5.5
37.6
45.6
70
11
208/230
1
185.0
32.1
0.5
5.5
38.1
46.1
70
20
208/230
3
164.0
25.0
0.0
0.0
25.0
31.3
50
21
208/230
3
164.0
25.0
0.5
0.0
25.5
31.8
50
30/35
460
3
100.0
12.2
0.0
0.0
12.2
15.3
25
Ext.
Loop
Pump
FLA
Model
Voltage
Code/ HWG
Option
60 Hz Power
Compressor
HWG
Pump
FLA
WS072
WS084
Notes:
1. All line and low voltage wiring must adhere to the National Electrical Code and local codes, whichever is the
most stringent.
2. In determining the correct supply wire size and maximum length, reference NFPA 70, Section 310. If the
calculation is close to the maximum allowable ampacity of a particular wire size, use the next size up. This will
ensure that no adverse effects occur, such as light dimming and/or shortened compressor life.
3. Min/Max Voltage: 208/230/60 = 187-252, 460/60 = 432-502
4. See Wiring Diagrams for proper 460V power.
*The external loop pump FLA is based on a maximum of three UP26-116F-230V pumps (1/2hp) for 048-084 and
two pumps for 036.
Total
Unit FLA
Min
Circuit
AMPS
Max
Brkr
HACR
WS036
WS048
WS060
Section 4: Unit Data Information