Air Conditioning
Air Conditioning
The air conditioning is requested by a combination switch. The IHKS activates the A/C compressor magnetic clutch, and cool air flows from the evaporator. With the aid of a temperature mixing flap, this air is blended with warm air from the heater core.
To prevent the evaporator surface from icing up, the evaporator temperature sensor signals the IHKS to deactivate the compressor clutch. The switching threshold is set at approximately 1°C (34 degrees F).