Emergency Heat - Johnson Controls T9100 Owner's Manual

Main Menu Buttons -

Emergency Heat

To initiate the Emergency Heat feature, press the Emergency Heat button.
During Emergency Heat operation, the thermostat will turn on the fan and
substitute auxiliary stages of heat for the first/second stages of heat. The
heatpump will not be available for heating but can be used for cooling.
To exit Emergency Heat, press the Emergency Heat button.
Emergency Heat
The Emergency Heat function
is only available if your thermostat
is set to control a Heat Pump.
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