| 摘要 |
PROBLEM TO BE SOLVED: To skirt a problem in a refrigerating cycle device posed by the unbalance in optimum refrigerant amount among operation modes. SOLUTION: A refrigerating cycle circuit is formed by circularly connecting a compressor, a plurality of heat exchangers, a decompressor and the like by a connection pipe, a switching means is mounted to switch the pressure of the refrigerant flowing in at least one heat exchanger A of the plurality of heat exchangers, between low pressure and high pressure, and carbon dioxide is used as the refrigerant. COPYRIGHT: (C)2003,JPO
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