How to Turn on Car Air Conditioning and Heater?

[Chad]

To turn on the car air conditioning and heater, follow these steps: 1. Start the car; 2. Press the AC button to activate the air conditioning; 3. Wait until the water temperature rises to the normal level; 4. Turn the knob to the red zone to switch to the heater mode. The car air conditioning system consists of a refrigeration system, heating system, ventilation and air purification devices, and a control system. The functions of the car air conditioning system include: 1. Achieving a cooling effect through the continuous circulation of refrigerant; 2. Utilizing engine coolant, waste heat, or heat generated by a burner as a heating source, which is then distributed by the blower to warm the air inside or outside the car, raising the temperature at the air outlets for heating purposes; 3. Drawing in fresh external air for ventilation and air exchange, which also helps prevent windshield fogging; 4. Removing dust, odors, smoke, and toxic gases from the car's interior to freshen the air, as well as humidifying the air to increase its relative humidity.