PH22018001263U1 - Cooling-only air conditioning system - Google Patents

Abstract

To provide a cooling-only air conditioning system that realizes cost containment. An air conditioning system 100 is a cooling-only air conditioning system. The air conditioning system 100 has plural indoor units 30, which each includes an indoor heat exchanger ,33. The air conditioning system 100 has plural outdoor units 10 which are connected to the indoor units 30 and are arranged in parallel with each other. The outdoor unit 10 hasúan outdoor heat exchanger 12 and a check valve 13. A high-pressure liquid-side flow passage RP3, in which refrigerant that flows out from the outdoor heat exchanger 12 and flows to the indoor units 30 flows, is formed in the outdoor units 10. The outdoor unit 10 does not include, in the high-pressure liquid-side flow passage RP3, a control valve whose open/closed state is electrically controlled. The check valve 13 is disposed in the high-pressure liquid-side flow passage RP3 and is positioned on the downstream side of the outdoor heat exchanger 12 in terms of flow of the refrigerant. The check valve 13 allows a flow of refrigerant heading from one end of the check valve 13 (the end portion on the outdoor heat exchanger 12 side) toward the other end. The check valve 13 shuts off a flow of refrigerant heading from the other end of the check valve 13 toward the one end.