Can the car air conditioning AC provide heating?

[JosephineRose]

Car air conditioning AC cannot provide heating. The function of AC is to activate the compressor, whose role is solely for cooling and dehumidifying. When the temperature knob is turned up, the AC's compressor does not function for cooling but only for dehumidification, as cars have their own heat source, making the compressor unidirectional. The functions of car air conditioning are: 1. Utilizing the continuous phase change cycle of refrigerant to achieve cooling effects; 2. Removing dust, odors, smoke, and toxic gases from the car's interior air, making the air fresher, and humidifying the air to increase the relative humidity inside the car. The maintenance methods for car air conditioning are: 1. Do not set the temperature too low; 2. Control the direction of the air outlet; 3. Avoid prolonged use; 4. Appropriately turn on high fan speed; 5. Turn off the air conditioning when driving at low speeds.