| 摘要 |
In this refrigeration-cycle device, a compressor, a heat-source-side heat exchanger, a pressure-reducing means, and a load-side heat exchanger are connected in that order, forming a refrigerant circulation circuit. The compressor and the heat-source-side heat exchanger are provided in a heat-source-side unit, the load-side heat exchanger is provided in a load-side unit, and the pressure-reducing means comprises a first pressure-reducing device provided in the heat-source-side unit and a second pressure-reducing device provided in the load-side unit. The first and second pressure-reducing devices are connected in series via first connecting tubing interposed between the heat-source-side unit and the load-side unit. Refrigerant flowing through the channel between the first and second pressure-reducing devices is in a gas-liquid two-phase state, and the amounts by which the first and second pressure-reducing devices reduce pressure are controlled so as to make the amount of refrigerant in some of the channels of the refrigerant circulation circuit, including at least the first connecting tubing, equal to a target refrigerant amount. |
