Heater and Air Conditioning

The heater and air conditioning system consists of a dual pressure switch, A/C switch, electronic thermostat, blower motor, fan switch, magnetic clutch for A/C compressor, blower resistor and relays. Although start and stop of the air conditioner is done with ON/OFF of A/C switch, the electronic thermostat, A/C Compressor relay, thermo switch relay, dual pressure switch and ECM, (V6:PCM) release the magnetic clutch to temporarily stop A/C operation under the preset conditions in order to control the room temperature, prevent the temperature rise of engine coolant, and reduce the engine load.