| 摘要 |
<p>PURPOSE:To prevent the discharge of cool water at the early time of hot water supply by allowing remaining water of the inside of hot water feed piping to flow from the suction part of a jet pump at the time of the stop of the jet pump of a hot water supply outlet part and providing the hot water supplying device with a sub-tank for sucking water from the suction part of the pump at the time of actuation. CONSTITUTION:When a source stop valve 3 is opened, remaining water allowed to flow in a sub-tank 9 is sucked by use of a jet pump 7 to be mixed with hot water from a hot water supplying device 1 therewith to be discharged from a water discharge opening 5, and a lower valve means 10 is closed when there is no water in the sub-tank 9. Next, when the source stop valve 3 is closed to stop the actuation of the jet pump 7, the lower valve means 10 is opened to allow the remaining water in the inside of hot water feed piping 6 to flow in the sub-tank 9 to remove the remaing water of the inside of the hot water feed piping 6 and, when the remaining water allowed to flow in the sub-tank 9 reaches a specified water level in the sub-tank 9, an upper valve means 12 of an outside air communicating part 11 is closed. Thereby the discharge of cool water can be prevented at the stage of the early time of hot water supply.</p> |
