AIR CONDITIONING/VENTILATING SYSTEM

摘要

An air conditioning/ventilating system is provided with an air supply fan; an exhaust fan; a compressor; a first heat exchanger for exchanging heat between the outdoor air sent by the air supply fan and a refrigerant; an expansion mechanism; a second heat exchanger for exchanging heat between the air sent into a sanitary space by the exhaust fan and the refrigerant; and a refrigerant circuit having piping to have the refrigerant circulate in the order of the compressor, the first heat exchanger, the expansion mechanism and the second heat exchanger or in the order of the compressor, the second heat exchanger, the expansion mechanism and the first heat exchanger. An indoor space is warmed or cooled by transferring heat between the first heat exchanger and the second heat exchanger by means of the refrigerant, while ventilating the sanitary space.