Should the AC be turned on when using car air conditioning in summer?

[OPhoebe]

In summer, the AC should be turned on when using the car air conditioning. The AC button is the cooling switch for the car air conditioning system. If the AC button is not pressed, the car air conditioning will not provide cooling. Car air conditioning refers to the air conditioning device installed in vehicles, which can cool, heat, ventilate, and purify the air inside the cabin, providing a comfortable environment for passengers, reducing driver fatigue, and improving driving safety. The cooling principle of air conditioning is as follows: 1. After pressing the AC button, the clutch of the air conditioning compressor engages, allowing the engine to drive the compressor. During operation, the compressor continuously compresses the refrigerant and delivers it to the evaporator. Inside the evaporator, the refrigerant expands and absorbs heat. 2. The refrigerant cools the evaporator, which in turn cools the air blown by the blower, allowing the car air conditioning vents to blow cold air.