| 摘要 |
An air conditioning apparatus (1) is provided with a refrigerant circuit (10) further provided with a compressor (21), an outdoor heat exchanger (23), an indoor heat exchanger (42a, 42b), and a stored-heat heat exchanger (28) that exchanges heat between a refrigerant and a heat storage material, and is capable of performing a heat storage operation during a heating operation and a stored-heat usage operation during a defrosting operation. This air conditioning apparatus, in the heat storage operation during the heating operation, ends the heat storage operation if a heat storage cumulative time that is an integrated value for the time at which a condensation temperature of the refrigerant is greater than or equal to a heat storage completion condensation temperature, is greater than or equal to a heat storage completion cumulative time, and after the heat storage operation ends, while the heating operation is performed, a heat retention operation is performed for retaining heat of the heat storage material. |
