Should the AC be turned on for car air conditioning cooling?
1 Answers
When the car is set to cold air mode, the AC button needs to be turned on, whereas it is not required when using the heating mode. This is because the AC button represents the air conditioning compressor, which is only used in the cold air mode. Below are the relevant details: 1. Composition of car air conditioning: The car air conditioning system includes not only the compressor but also components like the condenser, evaporator, and expansion valve. During the cooling process, the compressor is one of the crucial parts of the refrigeration system. Therefore, it is essential to turn on the AC button when using cold air; otherwise, the system will only operate the blower, delivering air at normal temperature. 2. Method for using cold air: When using cold air, turn on the air conditioning switch, set the fan to high speed, and adjust the temperature control knob to the cold air zone. After a while, once the interior temperature drops, you can lower the fan speed. 3. No need for AC in heating mode: During winter when using heating, the AC button does not need to be activated. It's worth noting that in winter, due to the low external temperature and higher interior temperature, the windows are prone to fogging. This fogging is often caused by the significant temperature difference between the inside and outside of the vehicle. In such cases, turning on the AC button can speed up defogging, but it will consume some of the car's fuel.
