abstract |
A refrigeration cycle apparatus ( 10 ) includes a refrigerant circuit ( 11 ) including a compressor ( 12 ), a heat source-side heat exchanger ( 13 ), an expansion mechanism ( 14 ), and a usage-side heat exchanger ( 15 ). In the refrigerant circuit ( 11 ), a refrigerant containing at least 1,2-difluoroethylene (HFO-1132 (E)) is sealed. At least during a predetermined operation, in at least one of the heat source-side heat exchanger ( 13 ) and the usage-side heat exchanger ( 15 ), a flow of the refrigerant and a flow of a heating medium that exchanges heating with the refrigerant are counter flows. |