| 摘要 |
PURPOSE:To efficiently utilize the solar heat in response to the condition of isolation and conditions of temperature of the water in a hot water storage tank by a system wherein a heating coil to heat the water in a hot water storage tank is connected through a selector valve in parallel to a radiator in a heat collecting circuit and, in addition, the water side of a condenser in a refrigerating circuit is connected to the inlet and outlet of the heating coil. CONSTITUTION:One end of a heating coil is connected to a connecting passage connecting a radiator 2 and a heat collecting pump 3, both of which are contained in a heating circuit, while the other end is connected through a three-way valve 17 to a passage connecting a solar heat collector 1 and the radiator 2. The suction side of the hot water passage 14 of a hot water circuit containing a hot water pump 15 and the secondary side of a condenser 6, which is contained in a refrigerating circuit, is connected to one end of the heating coil, while the discharge side of the hot water passage 14 is connected through a check valve 18 to the other end of the heating coil. Consequently, the water in a hot water storage tank 11 can be heated only by a solar heat without driving a compressor 5, resulting in enabling to realize the efficient solar heat utilization. |
