| 摘要 |
PROBLEM TO BE SOLVED: To provide a hot water supply system that can control the temperature of an object to be temperature-controlled by using a cooling source derived from an evaporator and a heating source derived from hot water of a hot water storage tank.SOLUTION: A hot water supply system 100 comprises a heat pump 2, a hot water storage tank 35, and a storage battery 71 serving as an object to be temperature-controlled. In the hot water storage tank 35, unheated water is supplied to a lower part, and hot water heated by the heat pump 2 is stored in an upper part. A temperature control part 8 controls the temperature of the storage battery 71 serving as the object to be temperature-controlled, by using cold obtained when a refrigerant evaporates in a cold storage refrigerant heat exchanger 24 of a refrigerant circuit 20, as a cooling source and using heat of the hot water stored in the upper part of the hot water storage tank 35, as a heating source. |
