| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a hot water storage type hot water supply system capable of making the most of an amount of heat of hot water stored in a hot water storage tank accumulated by heat recovery from an external heat source, and consequently, suppressing a fuel consumption amount of an auxiliary heat source machine to the minimum. <P>SOLUTION: Even when the temperature of the hot water stored in the hot water storage tank 3 is lower than a set hot water temperature, the stored hot water taken out from an auxiliary heating passage 51 is heated by the auxiliary heat source machine 6. Meanwhile, the stored water taken out from a stored hot water direct supply passage 52 is merged at a junction 50 and mixed. Both flow rates are adjusted by a first flow rate adjusting valve 56 and a second flow rate adjusting valve 57, thereby adjusting the temperature to the set hot water supply temperature. The hot water can be supplied to a hot water tap 7 without mixing supplied water by a mixing valve 55. When the used flow rate of the hot water is low and a combustion operation is difficult, the water supplied from a branch water supply passage 45 can be mixed by a first mixing valve 53 in order to continue the combustion. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
