Installation
Mains Power Supply Connection
Before power is supplied, the following procedure must be used if the transformer
voltage taps must be changed.
PREVENT EQUIPMENT DAMAGE. If the compressor boost transformer tap
settings do not match the mains supply voltage, it can result in damage to the
compressor.
AVOID ELECTRIC SHOCK. Permit only qualified electrical technicians to open
electrical enclosures, to perform electrical checks or to perform tests with the
power supply connected and wiring exposed. Failure to observe this warning
can result in serious injury or death.
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.
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