| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a hot water storage type hot water supply apparatus capable of preventing water of a low temperature from being supplied during hot water supply operation.SOLUTION: A hot water control part 60, when the heat quality of hot water in a hot water storage tank 10 is higher than a heat quantity required for preheating, turns a bypass valve 21 to an open state and turns a water quantity servo valve 48 to a closed state to perform mixed temperature control, and when the heat quantity of hot water in the hot water storage tank 10 is reduced to the heat quantity required for preheating or less, turns both of the bypass valve 21 and the water quantity servo valve to open states to continue the mixed temperature control. When the heat quantity of hot water in the hot water storage tank 10 is reduced not more than heating start set quantity less than the heat quantity required for preheating, the hot water control part 60 turns the bypass valve 21 to a closed state and turns the water quantity servo valve 48 to an open state to switch control to heating temperature control.</p> |
