AIR-CONDITIONING SYSTEM AND CONTROLLING METHOD FOR THE SAME

摘要

An air conditioning system is provided to effectively operate the air conditioning system by installing a first compression unit and a second compression unit having variable capacity in one compressor, and to improve efficiency of the air conditioning system by supplying gas phase refrigerant separated from a phase separator together with refrigerant passed through the first compression unit to the second compression unit. An air conditioning system comprises a phase separator(500) separating gas phase refrigerant from liquid phase refrigerant of flowing refrigerants, an evaporator(600) and a compressor(100). The evaporator evaporates the liquid phase refrigerant separated from the phase separator. The compressor includes a first compression device(110) where the refrigerant passed through the evaporator flows into, and a second compression device(120) where gas phase refrigerant separated in the phase separator flows into together with refrigerant passed through the first compression device.