What does the AC switch on the air conditioner mean?

[VonHailey]

The car AC switch is the cooling switch, commonly referred to as turning on the cold air. The AC switch controls the compressor, which is one of the main components of the car's air conditioning refrigeration system, responsible for compressing and transporting refrigerant vapor. Proper use of the AC switch: 1. Cold seasons: In cold seasons, it is necessary to quickly raise the temperature inside the car. When the car starts, the engine begins to warm up. Wait until the engine temperature gauge needle points to the middle position, then turn on the warm air conditioning, and at the same time set the air circulation to external circulation to allow the cold air inside the car to be expelled or wait for 2 to 3 minutes before setting the air circulation to internal circulation. 2. Rainy or snowy weather: In rainy or snowy weather, when there is a large temperature difference between the inside and outside of the car, the front windshield is very prone to fogging. At this time, simply adjust the warm air outlet direction to the position that blows on the front windshield, and the fog can be removed in a few minutes.