| 摘要 |
<p>PURPOSE:To judge any failure of a current water detector and a flowrate detector only when the current water detector is used to provide an automatic switch with an input. CONSTITUTION:A water filling device comprises a current water detector 7 for detecting the use of a hot water tap 6 provided in a hot-water supply circuit 8, a flowrate detector 12 for detecting flow rates of the hot-water supply circuit 8 and a water filling circuit 9, and an automatic switch 14 for starting and stopping hot-water supplying to a bathtub 1. The water filling device further comprises failure judging means 16 for judging any failure by means of the current water detector 7 and the flowrate detector 12, and control means 20 for starting failure judgement upon depressing of the automatic switch 14. In this manner, it is possible to use the control means common to kinds of machines, in which a current water detector is used and is not used.</p> |
