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STEP 12. SET THE FAN AND SYSTEM SWITCHES
First set the fan switch. Fan On: The fan runs continuousl
y
. Use for improved air
circulation or for more efficient central air cleanin
g
. (In a
heat-onl
y
s
y
stem, fan runs continuousl
y
onl
y
if fan rela
y
is
connected to the G thermostat terminal).
Fan Auto: Normal settin
g
for most homes. The equipment
controls the fan operation.
Then set the s
y
stem
switch.
Heat: The thermostat controls
y
our heatin
g
s
y
stem.
Off: Both the heatin
g
and air conditionin
g
s
y
stems are off.
Cool: The thermostat controls
y
our air conditionin
g
s
y
stem.
Fan
On Auto
Fan
On Auto
System
Heat Off Cool
System
Heat Off Cool
System
Heat Off Cool