Heater System

The air conditioning system operates on the reheat principle. All air passing through the system is cooled and then reheated to a more comfortable temperature before it is discharged into the passenger compartment.

The dehumidified air is reheated as it passes through the heater core in the heater module. The heater is warmed by engine coolant passing through the tubes of the heater core. This heat is transferred to the heater core fins and given off to the air flowing past the fins. The position of the air temperature air valve in the air conditioning module determines how much of the total airflow is allowed to pass through the heater. In turn, this determines the warmth of the total airflow discharged into the passenger compartment.