| 摘要 |
PURPOSE: A hot water supplying device of a heat pump and a control method thereof are provided to reduce the wiring length of the second heat pump circuit and restrict the rise of the manufacturing cost by adding the second heat pump circuit to the first pump circuit. CONSTITUTION: A hot water supplying device of a heat pump(700) comprises first and second heat pump circuits(100, 200) and a hot water supplying pipe(300). The first and second heat pump circuits comprise first and second compressors(110, 210), first and second heat exchangers(120, 235), first and second electric expansion valves(130, 240), first and second connecting pipes(150, 250). The first and second compressors compress first and second refrigerants respectively. The first connecting pipe successively connects a first compressor, a first heat exchanger, a first electric expansion evaporator, and an evaporator. The second connecting pipe successively connects a second compressor, a second heat exchanger, and a second electric evaporator. The hot water supplying pipe passes through first and second heat exchangers in series. |
