Air conditioning compressor is driven by compressed refrigerant in the air conditioning refrigerant circuit. In evaporative air conditioning compressor circuit (low pressure) and condensation (high pressure). Air conditioner indoor unit and outdoor unit belonging to the low pressure or high pressure area, respectively (operational status). In General attached to the outdoor unit for air conditioner compressor. Area of low pressure refrigerant from the air conditioning compressor pump to after they have been compressed to a high pressure area cooling to condense, gives off heat to the air through the heatsink, change from gaseous to liquid refrigerant and pressure rise. Refrigerant flow from a high pressure area area of low pressure through capillary injection to the evaporator, pressure drop, immediately into the liquid refrigerant gas, through a heat sink to absorb a lot of heat in the air. In this way, air conditioning compressors keep working, keep low pressure area at one end of the heat to the refrigerant and then sent to spray high pressure area to the air, played the role of regulating temperature. In this complete workflow,  Air conditioning  terminal has a significant value.