Venstar T1045 - Manual (Page 8)

Su
PM
I2:00 :
SET
HEAT
Page 8
Aux Heat
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.
Lockout - Aux Heat will never turn on
regardless of the heat demand.
When the Aux Heat switch is in the Emergency position the compressor
will also be locked out during cooling operation. *
OWNER'S MANUAL T1045
Emergency
Normal
Lockout
AUX HEAT
SWITCH