| 摘要 |
There is provided a heating and hot water supply system capable of simultaneously achieving a hot water supply request and a heating request. The heating and hot water supply system includes: a heat pump unit 1 that heats a heat medium; a hot water supply heat exchanger 19 that performs heat exchange between the heat medium and water in a hot water storage tank 11; heating heat exchangers 31, 32 that heat an inside of a room using the heat medium; a heat medium pump 18; heat medium pipes 12 to 15 that connect a discharge side of the pump 18, the heat pump unit 1, the hot water supply heat exchanger 19, the heating heat exchangers 31, 32, and a suction side of the pump 18 in order; a bypass pipe 22 that bypasses the hot water supply heat exchanger 19 from the heat medium pipe; a bypass pipe 23 that bypasses the heating heat exchangers 31, 32 from the heat medium pipe; a four-way valve 20 that regulates flow distribution of the heat medium between the hot water supply heat exchanger 19 and the pipe 22, and between the heating heat exchangers 31, 32 and the pipe 23; and a control unit 29 for controlling the four-way valve 20 in accordance with a hot water supply request and a heating request. |
