| 摘要 |
PURPOSE:To quickly stabilize temperature of flowing hot water for a preset temperature by continuously controlling driving means for urging a mixing valve corresponding to a detected temperature deviation in such a manner that the driving means is driven by the first urging amount, and when a temperature deviation is below a deviation preset value, the driving means is driven with a gain of the urging amount changed. CONSTITUTION:When a temperature deviation detected by deviation detection means 17 is larger than a preset value Em of the first deviation setting means 18, urging amount setting means 22 outputs the first urging amount F0 to driving means 13. When the temperature deviation comes to the preset value of the first deviation setting means 18, the driving means 13 is driven by the second urging amount F1 smaller than the first urging amount F0. The driving means 13 is continuously controlled until the temperature deviation reaches a preset value Em of the second deviation setting means 19. Thus, the urging amount is continuously changed, so that a mixing valve is prevented from going beyond and returning from the optimum position, that is, hunting. |
