| 摘要 |
PURPOSE:To secure the set temperature of hot-water and the set amount of water even when the hot-water or the water remains in a bathtub by a method wherein a gas proportional valve and a water amount proportional valve are controlled by the signals of the water level sensor of the bathtub and a hot-water temperature detecting bath thermistor. CONSTITUTION:Hot-water pouring temperature is set by the hot-water pouring temperature setting knob 17 of a controller 14 and the level of water is set by a water level setting knob 23 while a bath automatic hot-water pouring switch 16 is turned ON. When a water level sensor 26 does not confirm that there is remaining hot-water in a bathtub at first, hot-water provided with a set temperature is poured and the pouring is stopped when a set water level is achieved. When there is remaining hot-water, the hot-water of 80 deg.C is poured at first and the temperature of hot-water in the bathtub is detected by a bath thermistor 25. When the temperature of hot-water in the bathtub has become the set temperature, the hot-water provided with the set temperature is poured and when the level of the hot-water has arrived at the set water level, the water level sensor 26 detects it and the pouring of the hot-water is stopped. A gas proportional valve 7 and a water amount proportional valve 12 are controlled by a controller 22 based on the signals of the water level sensor 26, attached to the bathtub, and the bath hot-water temperature thermistor 25, attached to the side surface of a connecting adaptor in the bathtub, in such a manner whereby the set temperature and the set hot-water amount may be obtained at all times.
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