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WIRING
4
5
3
2
1
6
11
Typical 1H/1C system: 1 transformer
Typical 1H/1C system: 2 transformers
FAN RELAY
HEAT RELAY
COMPRESSOR
RELAY
(HOT)
REMOVE JUMPER
(HOT)
(HOT)
FAN RELAY
HEAT RELAY
COMPRESSOR
RELAY
Power supply.
Factory-installed jumper. Remove only when installing on 2-transformer systems.
Use either O or B terminals for reversing valve.
Use a small piece of wire (not supplied) to connect W and Y terminals.
Set fan operation switch to electric.
Optional 24 VAC common connection when thermostat is used in battery power mode.