Emergency Heat
Only available if you have a Heat Pump installed. To initiate the
Emergency Heat feature, press the OVERRIDE button. While holding the
OVERRIDE button press the UP button for 2 seconds. The display will
read ‘EM HEAT’ (Emergency Heat).
During Emergency Heat operation the thermostat will turn on the fan
and the Aux strip heat when there is a demand for heat. Also during
Emergency Heat, heatpump operation will be unavailable.
Exit Emergency Heat
Follow the same steps as entering Emergency Heat by pressing the
OVERRIDE and UP buttons for 2 seconds. During Emergency Heat, only
OFF and HEAT modes are available by pressing the MODE button.
About Advanced Features & Operation
35
OVERRIDE
Press for
Emergency Heat
The above figure assumes the minimum on time for the prior stage has been met
to allow the next stage to turn on, once the deadbands have been exceeded.
Heat
Setpoint
Cool
Setpoint
Deadband Deadband DeadbandDeadband
db 1 db 1db 2 db 2
(adj. 1-6˚ ) (adj. 1-6˚ )
1st Stage
turn on
2nd Stage
turn on
1st Stage
turn on
2nd Stage
turn on
Heating
Cooling
TEMPERATURE
DECREASE INCREASE
(adj. 0-10˚) (adj. 0-10˚ )
Deadband
db 3
(non-adj. 2˚)
3rd Stage
strip heat
turn on