2. Emergency Heat switcht control center is used with a heat pump and the Emer- gency Heat switch is turned ON, the unit will satisfy all heating demands with electric backup heat. When the Emergency Heat switch is OFF, the heat pump is used to satisfy heating demands. (This switch has no effect on operation in a
NOTE − Usually, Emergency Heat is more expensive to operate than Heat Pump heating. If so equipped, use Emergency Heat only when necessary.
To turn off the system, either: A − Turn each thermostat to OFF, or B − Turn the master thermostat OFF and turn the control center to central (Vacation ON) mode.
Vacation OFF for individual zone control.
Vacation ON for all zones to be conditioned 
at the same time.
Emergency Heat OFF to allow Heat Pump to provide heat. 
Emergency Heat ON to force auxiliary (backup) heat to provide all heating (disallows heat pump from providing any heat).
Damper LEDs come on to indicate the damper to zone # is CLOSED (No air being permitted to LIT zone)
Comes on when Emergency Heat switch set to ON
ON indicates only Zone 1 thermostat is functional and controlling air to ALL zones.
LEDs come on to indicate the current operating mode
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