Refrigeration Cycle Apparatus

A refrigeration cycle apparatus comprising:

• a compressor;
• a first heat exchanger;
• a second heat exchanger;
• a first decompressing apparatus;
• an oil separator;
• a first circulation pathway in which a refrigerant circulates in an order of the compressor, the first heat exchanger, the oil separator, the first decompressing apparatus, and the second heat exchanger;
• an oil-returned pathway connecting between the oil separator and a suction side of the compressor;
• a second decompressing apparatus provided in the oil-returned pathway;
• and
• a controller configured to control the first decompressing apparatus and the second decompressing apparatus,
• the controller being configured to set an operation mode to an oil collection mode in which the oil-returned pathway is opened by adjusting a degree of decompression of the second decompressing apparatus when the refrigerant and a refrigerating machine oil flowing in the first circulation pathway are separated in the oil separator,
• the controller being configured to set the operation mode to a normal mode in which the oil-returned pathway is closed by adjusting the degree of decompression of the second decompressing apparatus when the refrigerant and the refrigerating machine oil flowing in the first circulation pathway are not separated in the oil separator.