| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a heat pump water heater improved in work efficiency and having an air heat exchanger of high heat exchanging efficiency. <P>SOLUTION: This heat pump water heater comprises a refrigerant circulating circuit constituted by successively connecting a compressor, a water-refrigerant heat exchanger, a pressure reducing means and the air heat exchanger 2, and circulating a refrigerant, and the air heat exchanger 2 is composed of a plurality of heat exchanger units 13. The large air heat exchanger can be manufactured only by vertically stacking the plurality of heat exchanger units 13, and bending work is performed only on each of the heat exchanger units 13, which improves work efficiency. <P>COPYRIGHT: (C)2008,JPO&INPIT |
