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Sample Wiring Diagrams
6 Wire, 2 Stage Cooling, 1 Stage Heat - Heat Pump*
Residential Heat Pumps*, split systems & package units.
No auxiliary heat.
W2
Y2
DEHUM
RS+5
RS1
RSGND
Optional wiring for
dehumidification
Pages 8, 19-20, and 24 of Owner's Manual
W1/O/B
Y1
G
HUM
R
C
6 conductor, 18 gauge
unshielded cable from the
thermostat to the equipment.
24 vac common
24 vac return
Fan relay
Compressor relay
Reversing valve
2nd stage
compressor relay
DEHUM terminal
on HVAC unit
(if available)
* If using a Residential heat pump,
this option must be set to on
during Advanced Setup.
Page 10
(Fail to Heat)
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