| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a heat pump type hot water supply system capable of suppressing cost increase by integrating a water heat exchanger of a refrigerating cycle circuit with a water heat exchanger of a water circuit, correctly detecting the temperature of condensation without thermal effect of water, improving the detection accuracy and performing correct high-pressure control. <P>SOLUTION: Water heat exchangers 5 and 13 of a refrigerating cycle circuit 1 and a water circuit 10 comprise a plurality of coil assemblies 40 comprising an inner coil body 50 and an outer coil body 60 in which a refrigerant pipe 5P and a water pipe 13P overlap alternately and are wound in a coil, and a refrigerant connection pipe PA and a water connection pipe PB to communicate one end of the refrigerant pipe with one end of the water pipe of the inner and outer coil bodies. The refrigerant connection pipe and the water connection pipe are separated from each other, a condensation temperature sensor 22 to detect the temperature of the refrigerant is fitted to the refrigerant connection pipe, and a control device 30 to perform the high-pressure control of the refrigerating cycle circuit when the detected temperature of the condensation temperature sensor exceeds a predetermined value is provided. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
