TOTALINE
emergency
normal
energy save
aux.
heat
72
Heat
Off
Cool
Fan On
Fan Auto
AUX HEAT
SWITCH
Emergency
Normal
Energy Save
Operation
Switch
Emergency - Disables all compressor
functions** and energizes only Aux
Heat to satisfy the heat demand.
Normal - Aux Heat is allowed to run, if necessary,
along with the heat pump to satisfy the
heat demand.
Energy Save - Aux Heat will never turn on
regardless of the heat demand.
Aux Heat Indicator - This LED
will illuminate when the
thermostat has energized
Aux Heat.* (W2 terminal)
*The LED will only turn on when the
thermostat is powered from the HVAC
System. The cost of operating Electric
Strip Heat (Aux Heat) is normally signi-
ficantly more expensive than the cost of
operating Heat Pump.
OWNER'S MANUAL
MODEL P474-0140
Aux Heat
When the Aux Heat Switch is in the Emergency position the compressor will also
be locked out during cooling operation.
*
Page 7
*
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