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PART-SVN100A-EN
Installation
3 Connect new blue wire 3 to incoming compressor power and terminal 1
on the new relay
4 Connect new black wire 4 to the second incoming compressor power and
terminal 4 on the new relay.
5 Connect crankcase heater wires to terminals 2 and 5 on the new relay.
6 Connect the new relay coil (double tab terminals) to the terminals 4 and 6
on the customer terminal block. Use wires yellow 1 and orange 2.
Figure 1. Crankcase heater wiring diagram
Connect heater ground wire
to the unit chassis ground
Wire relay terminals 1 & 4
to the compressor
contactor incoming power
Crankcase Heater Wiring
Crankcase Heater
Connect heater leads
to relay terminals 2 & 5
Relay
Connect Relay coil leads to
terminal 4 & 6 on the
customer terminal block. The
relay coil terminals have
double tabs.
3
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