17 69-1081—3
Usage Key
q Press once to display the hours and minutes that the heating or cooling system has been operating for the
current day.
q Press a second time to display the system operating time for the previous day (midnight to midnight).
q Press a third time to display the system operating time since the last time the usage function was cleared.
NOTE: Press for three seconds to clear the usage function.
STEP 10. SET THE FAN AND SYSTEM SWITCHES
First set the fan
switch.
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. The equipment
controls the fan operation.
Then set the
system switch.
Heat: The thermostat controls your heating system.
Off: Both the heating and cooling systems are off.
Cool: The thermostat controls your cooling system.
Em Heat: Emergency heat or Auxiliary heat control to
setpoint. The heat pump compressor is off.
Usage
Usage
Usage
Usage
an
On Au
an
On Aut
ystem
Em Heat Heat Off Coo
ystem
Em Heat Heat Off Coo
ystem
Em Heat Heat Off Coo
ystem
Em Heat Heat Off Coo
69-1081.fm Page 17 Wednesday, May 18, 2005 9:03 AM
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