| 摘要 |
PURPOSE:To automatically supply hot-water in a short time by transferring the hot-water utilizing water supply pressure, supplying the hot-water reheating the hot-water by the use of a bath heat exchanger and of the hot-water supply during the transfer of the hot-water, and further conducting stirring inside a bath tub by switching a three-way valve upon additional boiling. CONSTITUTION:For supplying hot-water to a bath tub 20, a valve A.17 and a valve C.18 of a three-way valve 15 are opened and a valve B.19 is closed. The hot-water is allowed to pass through a pipe-to-bath 24 via a flow switch 27 and a bath heat exchanger 28, and led to the bath tub 20 via a bath adapter 22. Once the level of bath water 23 in the bath tub 21 increases to a level of the bath return pipe 21 of the bath adapter 22, a water level sensor 25 starts to detect pressure rise. When the water level increases from 23a to 23b, the three-way valve 15 is turned to close the valve A.17 and open the valves B.19 and C.18. Thereafter, once a pump 26 is actuated, the flow switch 27 is turned on to fill the pipe-to-bath 24 and the bath return pipe 21 with the hot-water through the bath heat exchanger 28. A bath thermistor 29 provided on the bath return pipe 21 detects bath water temperature, and if it is lower than set hot-water temperature set by bath remote control, the bath heat exchanger 28 is additionally boiled. Hot-water is automatically supplied to the bath tub utilizing the water pressure from the water supply and the pump can be used only for conducting stirring in the bath tub. |
