| 摘要 |
In an air conditioning apparatus 1, when the amounts of refrigerant oils retained in a first compressor 21a1 and a second compressor 21a2 are increased and oil levels in the first compressor 21a1 and the second compressor 21a2 reach a first oil outflow part 21a3 and a second oil outflow part 21a4, the refrigerant oils subsequently sucked into the first compressor 21a1 and the second compressor 21a2 flow out of the first oil outflow part 21a3 and the second oil outflow part 21a4 to a first oil outflow pipe 48a1 and a second oil outflow pipe 48a2, and flow from the first oil outflow pipe 48a1 and the second oil outflow pipe 48a2 to a refrigerant outflow pipe 42a. The refrigerant oils flowing in the refrigerant outflow pipe 42a from the first compressor 21a1 and the second compressor 21a2 through the first oil outflow pipe 48a1 and the second oil outflow pipe 48a2 flow out of an outdoor unit 2a through a four-way valve 23a, and circulate through a refrigerant circuit 100 together with refrigerants. |
