| 摘要 |
PROBLEM TO BE SOLVED: To improve the efficiency of an air conditioner as a whole. SOLUTION: In this air conditioner comprising a first refrigerant circuit 9 having a first compressor 2, a first four-way valve 3, an intermediate heat exchanger 5, a first expansion valve 6, an indoor heat exchanger 7 and a first outdoor heat exchanger 4, and a second refrigerant circuit 15 having a second compressor 10, a second four-way valve 11, the intermediate heat exchanger 5, a second expansion valve 13 and a second outdoor heat exchanger 12, and exchanging the heat between a refrigerant circulated in the first refrigerant circuit 9 and a refrigerant circulated in the second refrigerant circuit 15 by the intermediate heat exchanger 5, a first bypass pipe 16 is mounted in a state of bypassing the intermediate heat exchanger 5. COPYRIGHT: (C)2006,JPO&NCIPI
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