| 摘要 |
PROBLEM TO BE SOLVED: To prevent a backflow toward a water supply system side when supplying bathtub water to a washing machine or the like. SOLUTION: The washing hot water filling device comprises a water filling passage supplying tap water via a water filling valve 3, a hot water filling passage supplying hot water via a hot water filling valve 4, and a bathtub water supply circuit 7 supplying the bathtub water via a passage selector valve 9. The passage selector valve 9 changes the bathtub water supplied by a circulating pump 11 over to the bathtub water supply circuit or a bathtub circulation circuit 8. In an upstream side of the passage selector valve 9, by providing the water filling valve 3 supplying water to the washing machine 2, the hot water filling valve 4 supplying hot water to the washing machine 2, a check valve 5 preventing a backflow to a water/hot water circuit, and a valve 10 opening and closing a passage between the water filling valve 3 supplying water to the washing machine 2 and the check valve 5 preventing a backflow to the water/hot water circuit, a drain passage is provided for draining the bathtub water when the valve 10 is opened, and by opening the valve when hot water is supplied to the washing machine 2, a backflow of the bathtub water to the water supply system side can be prevented. COPYRIGHT: (C)2006,JPO&NCIPI
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