CPC F25B 49/02 (2013.01) [F25B 5/02 (2013.01); F25B 40/02 (2013.01); F25B 40/06 (2013.01); F25B 2500/08 (2013.01); F25B 2500/222 (2013.01); F25B 2600/2501 (2013.01); F25B 2700/2103 (2013.01)] | 16 Claims |
1. A refrigeration cycle apparatus, comprising:
a refrigeration cycle circuit that has a compressor, a condenser, an expansion device, and an evaporator that are connected through a pipe, the refrigeration cycle circuit being configured to allow refrigerant to circulate in the refrigeration cycle circuit; and
a controller configured to determine whether the refrigerant leaks or whether the expansion device malfunctions on a basis of a degree of subcooling at an outlet of the condenser and a degree of superheat at an outlet of the evaporator or a degree of superheat at a suction port of the compressor,
in a case where the degree of subcooling at the outlet of the condenser is less than or equal to a preset first threshold, and the degree of superheat at the outlet of the evaporator is less than a preset second threshold, the controller being configured to determine that the expansion device malfunctions.
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