Emerson 80 Series - Conventional Models - 1 H;1 C Wiring

80 Series Thermostats
39
Conventional Models - 1H/1C Wiring
• Power
– For single transformer application, 1Heat / 1Cool
• Remember RC and RH are internally have a jumper installed
– For two Transformer applications, 1Heat/ 1Cool
• Simply clip the RC/RH jumper on the back of the thermostat
• Heat Pump, 1Heat/1Cool-No Auxiliary
– Put a field jumper between “Y” and “W”
– Select the appropriate O/B switch setting on the back of
the thermostat
• “O”, energizes reversing valve in cooling
• “B”, energizes reversing valve in heating
Conventional 1 Heat / 1Cool
Furnace 1 Heat
A/C 1 Cool
RC RH O/B G Y W C
Power for
Cooling
Power for
Heating
Reversing
Valve
Fan
Relay
Cooling
Relay
Heating
Relay
Common wire
for 24C
Heat Pump 1
Heat and 1 Cool
RC RH O/B G Y W C