Trane XT500C manual Emergency Heat, Auxiliary Heat

Emergency Heat

The Emergency Heat feature allows you to Òturn onÓ the electric heat section of the system by moving the system switch to the Em. Ht. position. The LED lights and the thermostat displays ÒEm. Ht.Ó when the system calls for emergency heating. The thermostat may also display ÒAux. Ht.Ó if the system calls for additional back-up heating (see figure to right).

When the heat pump requires servicing, the LED lights and the system automatically activates emer- gency heat. After contacting your service technician, clear the LED signal by moving the system switch to Em. Ht. then back to Heat or Auto.

EM HT DISPLAYS WHEN SYSTEM CALLS FOR

HEAT IN EMERGENCY HEAT MODE.

AUX HT DISPLAYS WHEN SYSTEM CALLS FOR

Em Ht ADDITIONAL BACK-UP HEATING DURING NORMAL CONDITIONS OR IN EMERGENCY HEAT MODE.

Aux Ht

System

Em Heat FLAME DISPLAYS DURING CALL FOR HEAT.

EM HT DISPLAYS WHEN SYSTEM SWITCH
IS IN EMERGENCY HEAT POSITION.	M13302

Auxiliary Heat

The auxiliary heaters assist the heat pump under normal conditions when low outdoor temperature occurs. The auxiliary heaters may also operate while in the recovery mode to maintain comfort level. The thermostat displays ÒAux. Ht. Ó (see figure above) when the auxiliary heating equipment operates.

	Pub. No. 22-5128-02
9	69-1216