HEAT SOURCE UNIT AND REFRIGERATION DEVICE

摘要

A refrigeration device has an outdoor unit (20) having a compressor (21) and an outdoor heat exchanger (22) and also has an indoor unit (30) having an indoor heat exchanger (31). A main circuit (43) of a refrigeration circuit (40) is constructed from the outdoor unit (20) and the indoor unit (30). The refrigeration device further has a sub-circuit (70) connected at one end to a liquid line (4a) of the main circuit (43) and the other end to a low-pressure gas line (4a) of the main circuit (43) and containing refrigerant of the main circuit (43). The sub-circuit (70) has a refrigerant adjuster (72) provided in a sub-path (71) and containing the refrigerant of the main circuit (43) and also has a switchover mechanism (73) for permitting and interrupting the connection between the liquid line (4a)/the low-pressure gas line (4a) and the refrigerant adjuster (72). When the amount of the refrigerant of the main circuit (43) becomes excessive, the excessive refrigerant is contained in the refrigerant adjuster (72).