| 摘要 |
PURPOSE:To provide the titled device in which during the combustion of the burner the supply water temperature is maintained at a predetermined value without being switched over, even when the predetermined temperature is changed during the combustion of the burner, by providing a memory circuit which stores and holds a predetermined voltage obtained when the burner is in combustion. CONSTITUTION:When the burner commences to burn, a combustion signal from a combustion control circuit 7 is inputted in a hot water temperature adjusting signal storing and holding circuit 8, and stored and held, and is inputted as it is in the plus input terminal of a comparator 6. Accordingly, even when a hot water adjusting volume 2 is varied during the combustion of the burner, only the divided voltage stored and held is inputted in the plus input terminal of the comparator 6, so that the predetermined hot water temperature does not change, and hence there is no possibility of getting burns. |
