| 摘要 |
<p>PROBLEM TO BE SOLVED: To remarkably elevate energy saving effect, and make the controller suitable for drinking, and replenish water into a bathtub without fail, and further, to cope enough with the circumstances of a user, by obviating the necessity of boiling the whole quantity fruitlessly at nonuse. SOLUTION: This controller is connected to the heating element 1 within a bathtub 2, an empty stoking preventive electrode 3, an upper water level electrode 4, a overflowing water detecting electrode 7, a temperature sensor 5, and a water supply valve 6 outside the bathtub 2, and this controls the water level while suppressing the temperature of hot water within the temperature change at the lower limit of the set temperature from the set temperature by adjusting the water level or the hot water temperature within the bathtub 2 properly. In this case, this is provided with a timer function which sets the time zone of water level control and the temperature control within the bathtub.</p> |
