| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem that there is a need for heat exchangers for a refrigerant circuit and a hot water supply circuit, and a heat exchanger for the refrigerant circuit and a bath tub circuit, a refrigerant on-off valve is needed, and consequently, a hot water supply apparatus is increased in a price, in a heat pump bath hot water supply to heat a hot water storage tank and heats a bath tub. SOLUTION: By integrally manufacturing a refrigerant water heat exchanger capable of executing heat exchange by the refrigerant circuit and the hot water supply circuit and the refrigerant circuit and the bath tub circuit to solve a problem described above, a compact and a low cost heat exchanger can be provided to obtain a hot water supply apparatus. The structure where pipes for a hot water supply circuit and a bath tub circuit on both sides of the refrigerant circuit make contact with each other, as the structure of the refrigerant water heat exchanger, is formed in a further small and compact manner. |
