What do ac-off and ac-on mean?

[DylanFitz]

ac-off means turning off the air conditioning, and ac-on means turning on the air conditioning. The introduction to AC usage and the function of the AC switch are as follows: Introduction to AC usage: After pressing the AC button, the compressor clutch will engage, and the engine will drive the compressor to operate. This allows the compressor to continuously compress the refrigerant and deliver it to the evaporator. The AC button is the switch for the cold air conditioning. When pressed, the compressor works while the temperature control knob is adjusted to the cold zone, and the blower (1, 2, 3, 4) is turned on. At this time, cold air will blow out. For hot air conditioning, there is no need to press the AC button. Function of the AC switch: The AC switch controls the compressor's operation. The compressor is one of the main components of the car's air conditioning refrigeration system, responsible for compressing and delivering refrigerant vapor.