But before that we will learn the mechanism of operation of the air conditioning. We should know that the major components of the system cooling (Refrigeration Cycle) what are the cooling process, which is the main element (main) section 4: the compressor (Compressor) serves to drive the cooling liquid or substance (Refrigerant) in the system by making the cooling has compounds.High temperature and pressure. Hot coil (Condenser) cooling functional cooling coil of the cold (Evaporator) serves to absorb the heat in the room into the cooling substance. Pressure equipment (Throttling Device) serves to reduce pressure and the temperature of the cooling. Generally used as a gastrointestinal phin thio (Capillary tube) La luxury or executive pension snap valve (Expansion Valve).