| 摘要 |
PROBLEM TO BE SOLVED: To provide a refrigerating cycle device, and a hot/cold water heating device using the refrigerating cycle device being operational with high efficiency in high load operations such as a heating operation under a low outside air temperature and a cooling operation under a high outside air temperature. SOLUTION: The refrigerating cycle device 1 includes: a refrigerant circuit 2 including a condenser 22 and a supercooling heat exchanger 23; and a bypass pathway 3 which goes through the supercooling heat exchanger 23. In the bypass pathway 3, a dryness of a refrigerant flowing out from the supercooling heat exchanger 23 is adjusted. A bypass flow rate in the bypass circuit can be properly controlled without excessively degrading a dryness condition even when a superheat degree SH of the refrigerant at an outlet of the bypass circuit 3 becomes 0 and the refrigerant dryness condition is unclear. As a result, effect of supercooling of the supercooling heat exchanger 23 and reliability of a compressor can be secured. COPYRIGHT: (C)2011,JPO&INPIT
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