| 摘要 |
PROBLEM TO BE SOLVED: To provide an air conditioner which can vary the amount of a refrigerant circulating in a refrigerant circuit so as to increase operation efficiency and has high reliability even if a power failure suddenly occurs during the operation of the air conditioner to cause the air conditioner to stop operating.SOLUTION: There is provided an air conditioner which is provided with a refrigerant amount control part 10 controlling the amount of a refrigerant flowing in a refrigerant circuit, the refrigerant amount control part 10 including a receiver 13 reserving the refrigerant, connection pipes 14, 15 connecting the receiver 13 to pipes 11, 12 constituting the refrigerant circuit, and flow control devices 16, 17 controlling the flow rate of the refrigerant. The air conditioner is further provided with an electric power storage device which stores electric power during electric power supply and supplies the stored electric power to a control device 20 and the flow control devices 16, 17 when the external power supply is interrupted, and the control device 20 opens the flow control devices 16, 17 with the electric power supplied from the electric power storage device when it is determined that the external power supply is interrupted. |
