Refrigeration cycle apparatus, air conditioner, and circulating composition calculation method in refrigeration cycle apparatus

摘要

When the refrigeration cycle apparatus determines that there is no surplus refrigerant in the surplus refrigerant presence / absence determining means for determining whether or not there is surplus refrigerant in the accumulator 14, and the surplus refrigerant presence / absence determination means, A different calculation method is used for the circulation composition, which is the composition of at least one refrigerant component among the plurality of refrigerant components in the state of circulating through the circulation circuit 1, when the surplus refrigerant presence / absence judging means does not determine that there is no surplus refrigerant. And a control device 50 having a circulation composition calculating means for calculating.