APPLIANCE FOR AUTOMATIC HOT WATER FILLING AND CONTROLLING METHOD OF THE AUTOMATIC HOT WATER FILLING

摘要

PROBLEM TO BE SOLVED: To accurately detect and determine a reference water level a little above a connecting port of a reheating circulation passage through which hot water from a hot water supply source is poured into a bathtub and thereby to conduct an accurate hot water filling operation. ;SOLUTION: At the time of an operation in a memory mode wherein conditions of hot water filling are set, a bathtub hot water checkup operation wherein detection of signals of a reheating water flow switch 16 according to pouring of hot water in a prescribed quantity and starting of a circulating pump 18 after this pouring is executed repeatedly under the control of an operation control part 27, and after the reheating water flow switch 16 detects flowing water first, purge pouring of hot water for removing air in a reheating circulation passage stretching from a hot water supply source is executed by a purge hot water pouring drive part 23. A bathtub water level is detected by a pressure sensor 13 after this purge pouring of hot water and the detected water level is determined as a reference water level by a reference water level determining part 25. The quantity of water to be filled from this determined reference water level to a set water level is determined by a poured hot water quantity computing part 26 and the hot water filling is conducted in conformity with procedures set beforehand.;COPYRIGHT: (C)1997,JPO