| 摘要 |
Provided is a refrigeration apparatus that uses R32 for the refrigerant, and that is capable of injection in order to suppress the discharge temperature even in the case in which 5 operating efficiency deteriorates by intermediate injection. An air conditioning apparatus (10) that uses R32 refrigerant is provided with a compressor (20), an indoor heat exchanger (50), an outdoor expansion valve (41), an outdoor heat exchanger (30), an intermediate injection channel (65), a suction injection channel (67) and injection switching valves (66, 68). The intermediate injection channel (65) causes a part of the refrigerant flowing in a main 0 refrigerant channel (11a) to merge with intermediate-pressure refrigerant of the compressor (20). The suction injection channel (67) guides a part of the refrigerant in the main refrigerant channel (11a) to a suction passage (27). F ~ ~ -6 -- -_---- C-Oif)00 5-~~ ---- - -- - - j _ _I C co j 5-- |
