306
High Heat
Stage
Finish
Yes, No
This ISU is only displayed when the thermostat is
set to 2 or more heat stages. When set to YES,
this feature keeps the higher stage of the heating
equipment running until the desired setpoint is
reached.
340
Aux Heat
Droop
0 = Comfort; 2 °F to 15 °F
from setpoint (in 1 °F incre-
ments) or 1.0 °C to 7.5 °C
from setpoint (in 0.5 °C
increments)
Aux heat droop can be set on heat pump systems
with an auxiliary heat stage. The Comfort setting is
NOT available for Dual Fuel systems. Default
setting is 0 °F (0 ° C) (Comfort) for Electric while 2
°F (1.0 °C) for Gas/ Oil. The indoor temperature
must drop to the selected droop setting before the
thermostat will turn Aux Heat on. For example, if
Aux Heat is set to 2 °F (1.0 °C), the indoor
temperature must be 2 ° F (1.0 ° C) away from the
setpoint before Aux Heat turns on. When set to
Comfort, the thermostat will use Aux Heat as
needed to keep the indoor temperature within 1 °F
(0.5 ° C) degree of the setpoint.
350
Up Stage
Timer Aux
Heat
Off, 30, 45, 60, 75, 90
minutes
2, 3, 4, 5, 6, 8, 10, 12, 14, 16
hours
The Auxiliary Heat Upstage Timer starts when the
highest stage of the previous heating equipment
type turns on. Auxiliary heat will be used (if
needed) when the timer expires. This ISU is only
displayed when ISU 340 (AUX Heat Droop) is set
to 2 °F (1.0 °C) or higher.
Table 3.
#
ISU
ISU Name
ISU Options (defaults in
bold)
Notes
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