STEP 11. SETTING THE FAN AND SYSTEM SWITCHES
First set the fan switch.
Then set the system switch. The
display will show which
system is on: flame = heat
and snowflake = cool.
Fan On: The fan runs continuously. Use for
improved air circulation or for more efficient
central air cleaning. (In a heat-only system,
fan runs continuously only if fan relay is
connected to the G thermostat terminal.)
Fan Auto: Normal setting for most homes.
A single-speed fan turns on automatically
with the air conditioner or furnace. A two-
speed fan usually runs on high with the air
conditioner and on low with the furnace.
Heat: The thermostat controls
your heating system.
Off: Both the heating and air
conditioning systems are off.
Cool: The thermostat controls
your air conditioning system.