| 摘要 |
PURPOSE:To perform an efficient recovery of refrigerant without any trouble and promote an energy saving by a method wherein a bypassing device is arranged at a refrigeration cycle at a reminal end position where the refrigerant is easily accumulated, and then the refrigerant is passed between a liquid side pipe and a gas side pipe of the refrigeration cycle. CONSTITUTION:A capability variable compressor 1, an outdoor heat exchanger 8, a pressure reducing device 42 and a parallel circuit of a plurality of indoor heat exchangers 33 are connected in sequence by pipes to form a refrigeration cycle. The capability variable compressor 1 and the outdoor heat exchanger 8 are stored within the outdoor device A. In addition, each of the indoor heat exchangers 33 is stored in a plurality of indoor devices B1 to Bn. In this case, a bypassing device C is connected by a pipe in a parallel relation with each of the indoor devices B1 to Bn and at a position which is the most remote from the outdoor device A. Then, the bypassing device C is provided with an opening or closing valve 41 for bypassing the liquid side pipe and the gas side pipe of the refrigeration cycle. That is, the bypassing device C is arranged at the refrigeration cycle at the terminal position where the refrigerant may easily be accumulated. |
