| 摘要 |
PROBLEM TO BE SOLVED: To provide a bathtub automatic washing system which can provide hot-water supply use and bathtub washing operation at the same time when a necessary flow volume of hot-water or water is ensured in a bathtub washing operation. SOLUTION: If a flow volume Qs in a washing pipe 13 becomes less than washing flow volume Q1 (S105) when a faucet 33a and so on is opened and hot-water is supplied, a water volume control valve 18 provided on the washing pipe 13 is opened widely and hot-water supply use and bathtub washing operation are carried on at the same time (S110 to S113). When the washing flow volume Q1 can not be kept even if the water volume control valve 18 is opened at a maximum (S112), an on-off valve 16 of the washing pipe 13 is closed to keep bathtub washing operation waiting (S115). During the wait of the bathtub washing operation, a measurement flow volume Qn is monitored (S116) with a heat source water volume sensor 71 of a hot-water supply device 3. Further, when the measurement flow volume Qn of the heat source water volume sensor 71 becomes less than a predetermined flow volume Qt, the on-off valve 16 of the washing pipe 13 is opened to restart the bathtub washing operation (S103). COPYRIGHT: (C)2009,JPO&INPIT
|
