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What is the function of AC in a car?

1 Answers

BrodyDella

07/30/25 9:52am

The function of AC in a car is air conditioning cooling. AC is the abbreviation of aircondition (cooling), and the AC button represents the switch of the car air conditioning cooling. When the AC button is pressed, the compressor clutch will engage, causing the engine to drive the compressor to operate, and the air conditioning will start cooling. When the AC light is on, it means the car air conditioning cooling is currently running. If the AC light is off, it means the compressor is not working. Car air conditioning usage methods and precautions: 1. Do not rush to turn on the air conditioning: This mainly applies to cars that have been parked overnight or for a long time, as the air inside the closed car can be very stale. The best practice is to first open the windows, then turn on the external circulation to expel the stale air, and then close the windows and turn on the air conditioning. Similarly, for cars that have been exposed to the sun for a long time, first open the windows and turn on the external circulation to expel the hot air, then close the windows and turn on the external circulation. 2. Switching between internal and external circulation: Some cars have separate buttons for internal and external circulation, while others only have an internal circulation button. When the light is on, it indicates internal circulation; otherwise, it is external circulation. It can be imagined that long-term use of internal circulation is equivalent to repeatedly breathing in this second-hand air, especially during long trips, which can cause a feeling of stuffiness for this reason.

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