| 摘要 |
PURPOSE:To automate additional combustion, hot water supply and water supply by providing a controller which circulates and heats water in a bathtub at the set temperature, a priority circuit which supplies hot water by inhibiting the circulating and heating and an automatic water stopping unit which closes hot air passage by detecting the set water level. CONSTITUTION:In case that a bath is circulated and heated, when the additional combustion switch 28 of an additional combustion operating unit 27 is closed, a control circuit 44 is energized, a gas burner 7 is burned, and water is circulated and heated until a switch 42 is opened by a temperature detector 23. In case that the hot water is then supplied, when a hot water plug 21 is opened, a water switch 13 is closed, burning air is supplied by a blower 36 to a combustion chamber 6, a signal is transmitted to a priority circuit 43, the circuit 44 is energized to heat the water, and the circulating and heating are inhibited. In order to then perform an automatic combustion of the bath, the additional combustion switch 28 is closed and the plug 21 is opened. Then, hot water is supplied to a bathtub 20. When the water level becomes the set level, an automatic water stopping unit A is operated to release the hot water preferential supply means, a pump 25 is operated, and the water in the bathtub is circulated. |
