Sumitomo HC-4A, Technical Manual, Page: 30 / 72

Installation
24
Tools required: #2 Phillips screwdriver
Flat-blade torque screwdriver
1. Disconnect the mains power supply to the compressor (if connected).
2.
Remove the field wiring access panel located on the compressor front panel.
3. Using Table 1, find the electrical supply voltage and frequency, then determine the proper
terminal positions for connecting the mains power supply cable.
4. If required, move the mains power supply wires to the correct terminal positions determined
from Table 1 and tighten to 1.3 N-m (11.5 in-lb) torque. See Figure 4.
Compressor
Electrical
Variation
Incoming Power Terminal
Position
Hz Volts
1
5
2
6
G
60 220 L1 L2
50 200 L1 L2
50 220 L3 L4
1
6
2
6
G
60 220 L1 L2
50 200 L1 L2
50 230-240 L3 L4
2
6
G
60 220 L1 L2
50 200 L1 L2
X X X
2
5
2
6
G
60 220 L1 L2
50 200 L1 L2
60 200 L3 L4
Table 1 Terminal Position for Mains Power Supply