What does AC mean in air conditioning?

[LaMargaret]

The AC button is commonly used in cars. The AC button stands for the air conditioning system, which is the abbreviation of Air-conditioning. When the light of this button is on, it means the compressor is working, which will increase fuel consumption, and its main function is to cool and blow cold air. Additional information: 1. Car air conditioning is divided into cold air conditioning and hot air conditioning. Hot air conditioning actually does not require turning on the air conditioning; you only need to turn on the blower to use the heat from the engine for heating. On the other hand, cold air conditioning requires turning on the AC switch to make the air conditioning compressor work to produce cold air. Therefore, the AC switch is the start switch for cold air conditioning. 2. Additionally, mid-to-high-end car models will have an extra AUTO button, which means automatic air conditioning. When the AUTO button is turned on, the car's computer will automatically recognize whether warm or cold air is needed through temperature sensors. For those who prefer convenience, automatic air conditioning can save a lot of setup trouble and is easy and quick to use.