Do you need to turn on the AC when using the car air conditioner in summer?

[DiJaxon]

When using the car air conditioner to blow cold air, it is essential to turn on the A/C switch. Otherwise, only the blower in the car air conditioner will be working, and the air coming out of the vents will be at normal temperature. The A/C switch in the car is the air conditioning switch, which essentially controls the compressor. By turning the A/C switch on or off, you can control the operation of the car air conditioning refrigeration system. Here are some relevant details: 1. Definition of car AC: The car air conditioning AC is the compressor switch, simply put, it is what delivers cold air. The car air conditioning system includes not just the compressor but also components like the condenser, evaporator, and expansion valve. However, the compressor is one of the most critical components of the refrigeration system, responsible for compressing and transporting refrigerant vapor. 2. How to turn on cold air in a car: First, press the A/C switch; when the A/C light turns on, it indicates that the air conditioning refrigeration has started working. Next, press the recirculation button to cut off the exchange of air between the cabin and the outside. Then, rotate the temperature control knob to adjust the desired interior temperature. 3. Whether to turn off the A/C switch in winter: Actually, it doesn't matter whether you turn it off or not. In extremely cold northern regions where temperatures are near or below freezing, even if the A/C switch is turned on, the car air conditioning refrigeration system will not operate. However, one advantage of turning on the A/C switch in winter is that it helps dehumidify the air, preventing the car windshield from fogging up and obstructing the driver's view.