Whether in winter or in hot weather, vehicle air conditioners are often used, especially in cold winter, the interior of the car can be adjusted to a comfortable temperature by turning on the warm air. Today, let's talk about cars without heating. What's the problem? Let me briefly talk about the principle of air-conditioning warm air, which is different from air-conditioning refrigeration. Warm air is completed by the heat of the engine antifreeze, that is, the antifreeze circulated by the engine enters the small water tank in the evaporation box of the air conditioner through the pipeline, flow valve and circulation valve. After the blower is running, the air flows to the small water tank. Because of the heat, the air becomes hot, so it can be blown out through the air conditioner outlet.