7
8 Set fan operation switch
Move the switch to the proper setting:
Gas or Oil: For gas or oil heating systems, leave
the fan operation switch in this factory-set
position (for systems that control the fan in a
call for heat).
Electric or Heat Pump: Change the switch
to this setting for heat pump or electric heat
systems. (This setting is for systems that allow
the thermostat to control the fan in a call
for heat, if a fan wire is connected to the G
terminal.)
9 Install Thermostat
onto Wallplate
Install thermostat onto the wallplate
on the wall.
RTHXXXX
GAS OR OIL
ELECTRIC OR HEAT PUMP
GAS OR OIL
ELECTRIC OR HEAT PUMP
10 Turn Power Back On
Turn the power back on to the
heating/cooling system.
W/
Aux
Not
Used
Heat Off Cool Auto On
Fan
or
Circuit breaker
box
Heating/cooling
system power switch
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