AIR-CONDITIONING DEVICE

摘要

To provide an air-conditioning apparatus capable of improving the heat exchange efficiency while miniaturizing heat exchangers related to heat medium. In an air-conditioning apparatus 100, an expansion device 16a, a second refrigerant flow switching device 18a, and heat exchangers related to heat medium 15a, connected between the expansion device 16a and the second refrigerant flow switching device 18a such that a heat source side refrigerant flows in parallel, are connected in a part of refrigerant passages, and an expansion device 16b, a second refrigerant flow switching device 18b, and heat exchangers related to heat medium 15b, connected between the expansion device 16b and the second refrigerant flow switching device 18b such that the heat source side refrigerant flows in series, are connected in the rest of the refrigerant passages.