| 摘要 |
This air-conditioning device is equipped with a control device 30. Upon detecting the leakage of a refrigerant, the control device 30 performs a pump-down operation wherein the control device 30 switches a flow path switching device 11 to a cooling operation and controls a refrigerant interrupting device 13, a bypass opening/closing device 15, and the operation of a compressor 10 so that the refrigerant in a main refrigerant pipe 3 is recovered by a heat-source-side heat exchanger 12 and an accumulator 14. Then the control device 30 performs a refrigerant leakage reduction operation wherein the control device 30 switches the flow path switching device 11 to a heating operation and controls the refrigerant interrupting device 13, the bypass opening/closing device 15, and the operation of the compressor 10 so that the recovered refrigerant is sealed in the heat-source-side heat exchanger 12 and the accumulator 14. |
