| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve portability and installability of a heat pump water heater. <P>SOLUTION: This heat pump water heater is divided into three units: a first unit 31 accommodating a first refrigeration cycle comprising a first compressor 1, a first water-refrigerant heat exchanger 2, a first pressure reducing valve 3, and a first air-refrigerant heat exchanger 4; a second unit 32 accommodating a second refrigeration cycle comprising a second compressor 6, a second water-refrigerant heat exchanger 7, a second pressure reducing valve 8, and a second air-refrigerant heat exchanger 9; and a third unit 33 accommodating a tank circuit comprising a hot water storage tank 11, a mixing valve 12, a solenoid valve 13, a hot water circulation pump 14, and circulation pump 15 for reheating bath. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
