AC mining is where every vehicle mines that have a heavy and light vehicles always need the AC, as the cooling air in the cabin. in AC systems is to move hot air from the room out of the room, with temperature regulated. In another sense, this term can refer to any form of cooling, heating, ventilation, or the changing conditions of air disinfection. An air conditioner (often referred to as conditioned or air con.) Is a tool, system,. or machines that are designed to stabilize the air temperature and humidity in a room (which is used for cooling or heating depending on the nature of the air at any given time), usually using a refrigeration cycle but sometimes using evaporation, usually for comfort cooling in buildings and motor vehicle.