| 摘要 |
PURPOSE:To permit the sharp rise of the temperature of supplied hot-water to a set value by outputting a signal for stopping the operation of a driving means into an urging-amount setting means when the amount of supplied hot-water reduces below a prescribed value. CONSTITUTION:An urging-amount setting means 22 urges a driving means 13 until the temperature difference detected by a difference detecting means 21 becomes zeor. When a user does not require the supply of hot water and a cock is closed, a flow-rate detecting means 17 detects the flow rate less than a prescribed value, and a signal to stop the operation of a driving means 13 is outputted from a flow-rate judging means 23 to the urging-amount setting means 22. Even if the user abruptly opens the cock, the user is protected from the danger of using hot-water, since a mixing valve is at the position close to that for the supply of the hot-water having the temperature set in the preceding time. |
