| 摘要 |
PROBLEM TO BE SOLVED: To compensate the change of the temperature of a water level attaching part and perform the filling with hot water at an accurate water level, by supplying hot water by a forward pipe after detecting the reference water level at the initial stage of hot water, and further, detecting the set water level after circulating hot water. SOLUTION: This automatic hot water filler supplies a bathtub with hot water, with a solenoid valve 12 open, after decision of reference water level, and measures the water level of the bathtub by a water level sensor 8, and when this detects the water level of the bathtub having reached the set water level, this closes the solenoid valve 12, and opens a circulation two-way valve, and operates a circulation pump 6 for a certain time. Then, this measures the water level of the bathtub by the water level sensor 8 again, and checks whether it has come to the set water level or not. Hereby, the change of the temperature properties of the water level sensor 8 can be suppressed by setting the temperatures of the water level sensor 8 attaching part at the time of decision of the reference water level and at the time of verification of the set water level of the bathtub to approximately the same value, so the automatic filling of hot water to the bathtub at accurate water level can be performed. |
