| 摘要 |
PROBLEM TO BE SOLVED: To prevent water having temperature unexpected by a user from being delivered and supplementary water supply from being interrupted by disabling hot water supply function during operation of supplementary water supply function and switching hot water supply temperature indication from numeric to symbolic. SOLUTION: When a supplementary water supply function is operated, water supplied to a water supply pipe 35 is injected, as it is, into a bathtub 29 through a water stop valve 11 and a supply pipe 37. A hot water supply heat exchanger 25 is disabled temporarily with a command from a controller 3 and a burner 9 is not ignited. A remote controller 2 has a hot water supply temperature setting switch and a bath temperature setting switch and a user regulates the temperature while looking at a hot water supply temperature indicating part or a bath temperature indicating part. Each temperature indicating part comprises a seven segment indicating element which can indicate numbers from 0-9 by lighting or unlighting seven segments. When a supplementary water supply function is operated, a supplementary water supply lamp is lighted and a number indicated at the hot water supply temperature indicating part is changed into a symbol. |
