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WIRING DIAGRAMS(cont.)
Thermostat Fan Coil Heat Pump
OO
RVS/Heat Stage 2 O/B W2 W3 W2**
Heat Stage 1 W/W1 W2
Compressor Y/Y2 Y Y
Not Used Y1
Fan G G
24VAC Hot Heating Rh R R
24VAC Hot Cooling Rc
Dry Contact 1 D1
Dry Contact 2 D2
24VAC Common C COM COM
Outdoor Air Temp OAT
Remote Room Sensor RRS
OAT/RRS Com OAT/RRS
Outdoor Sensor *
Remote Room
Sensor *
* Indicates connection may not be required/available.
** Some heat pumps may designate W1.
A09154
Fig. 18 − Fan Coil with Heat Pump (HP Thermostat)