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1F86U-42WF
SENSI
WIRING
Terminal Connections
Sensi
Thermostat
Conventional
Heat Pump
RC*
Power for Cooling
Power for Cooling
RH*
Power for Heating
Power for Heating
C
Common Wire
Common Wire
W/E
1st Stage Indoor Heat
1st stage Aux/Emergency Heat
W2
2nd Stage Indoor Heat
2nd stage Aux/Emergency Heat
Y
1st Stage Outdoor Cool
1st Stage Compressor
Y2
2nd Stage Outdoor Cool
2nd Stage Compressor
G
Fan
Fan
O/B
Heat pump changeover valve
Heat Pump Changeover Valve
L
Heat pump diagnostic
Heat Pump Diagnostic
* If you have separate RC and RH wires, clip the RC/RH jumper on the back of the thermostat.
RC/RH
Jumper
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