Heater System: Description

System is a blend-air type in which outside air is heated and then mixed in varying amounts with cooler outside air to attain desired temperature. System consists basically of 3 parts: Blower and air inlet assembly, heater air distributor assembly and heater control assembly.

Heating components are attached to dash panel on right side of vehicle. Blower motor, air inlet assembly and coolant hoses are located on the engine side of dash panel while heater core and distributor duct are on passenger side. Since the system has no heater control valve, coolant circulation keeps heater core hot at all times. Air passing through core receives maximum heat.

Operation of blower motor is controlled by the fan switch. The motor is connected in series with the fan switch and blower resistor assembly. A 25 amp fuse is provided to protect blower circuit operation.

On all models except Nova, the heater control panel includes 2 sliding levers and a blower speed switch. Levers actuate cables that control heater mode and discharge air temperature.

The heater control panel on Nova consists of 3 sliding levers and a blower speed switch. Levers actuate cables that control airflow, fresh or recirculation air, and discharge air temperature.