| 摘要 |
PROBLEM TO BE SOLVED: To prevent vapor condensation and shortens additional burning time. SOLUTION: A possibility of vapor condensation is judged by a discharge hot water temperature of circulation water of a bath heat exchanger detected by a bath discharge hot water thermistor (S1). When the judgement shows the possibility of vapor condensation, a bath solenoid valve is closed at one time to halt the combustion of a bath burner to prevent vapor condensation (S2) and the combustion of the bath burner is restarted (S5) after the combustion is delayed for a specified time (S3). |
