| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hot-water storage type hot-water supply device capable of effectively utilizing a medium temperature water in a hot-water storage tank in supply of hot water. <P>SOLUTION: This hot-water supply device is provided with a hot-water temperature sensor 48 detecting temperature of hot water in the hot-water storage tank 2, upper and lower medium temperature water going-out ports 34, 35 provided up and down of an intermediate position in the hot-water storage tank 2, a change-over means 33 for selecting either of the upper and lower medium temperature water going-out ports 34, 35, a medium temperature water mixing valve 30 mixing high temperature water from a hot-water going-out pipe 8 and hot water from the selected medium temperature water going-out port 34 or 35 to reach arbitray temperature, a hot-water supply mixing valve 37 mixing hot water mixed in the medium temperature water mixing valve 30 and low temperature water from a bypass pipe 38 to reach arbitrary set temperature for supply of hot water, and a control means 55 in which temperature detected by a stored hot-water temperature sensor 48 in the vicinity of height of each medium temperature water going-out port 34, 35 is inputted and which outputs a change-over signal to the change-over means 33 to select either of the upper and lower medium temperature water going-out ports 34, 35 corresponding to the temperature in the vicinity of the height of each of medium temperature water going-out parts 34 and 35. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
