| 摘要 |
PROBLEM TO BE SOLVED: To keep the water level in a bathtub constant by solving the problem caused by the difference between detection values of the level of bathwater in the bathtub at the first filling of hot water using water temperature and at the second and succeeding filling of the hot water using a set temperature due to the temperature characteristic of a water level sensor. SOLUTION: An automatic bath unit is provided with an operating part 21 receiving the input of the set temperature of a bathtub 40 and the set amount of filling the hot water, a hot water feeding circuit 10 feeding the hot water into the bathtub 40, a temperature sensor 27 detecting the temperature of the feeding hot water to the bathtub 40, a flow rate sensor 12 detecting the feeding rate of the hot water into the bathtub 40, a water level sensor 25 detecting the water level in the bathtub 40 and a control part 30 feeding the hot water into the bathtub 40 to the set amount of filling the hot water. The control part 30 detects the water level by the water level sensor 25 after the completion of feeding the hot water into the bathtub 40 at the first filling of the hot water in the case of feeding the hot water by using the set temperature of the operating part 32 and redetects the water level of the hot water in the bathtub 40 by the water level sensor 25 after the completion of filling the hot water into the bathtub 40 at the second and succeeding filling of the hot water when the operating part 32 receives at least either the reset in put of the set temperature or the set amount of the filling the hot water.
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