COMBUSTION CONTROL METHOD OF HOT WATER SUPPLYING DEVICE

摘要

A selection and a setting of the kind of fuel gas and a reference temp. are stored in a CPU. The CPU controls preferentially a set temp. than the reference temp. after a set temp. is inputted and control a hot water feeder. A water rate proportionally regulating valve is set to a desired degree of opening of a set temp. When a previous hit water feeder is used irrespective of ON or OFF of a sub-controller. A geared motor for use in varying a degree of opening of the water rate proportionally regulating valve adjusts a degree of opening after inputting a set temp. resulting in delaying a combustion control. In order to prevent this operation, prior to a starting of combustion, the water rate proportionally regulating valve is moved. So an adjusting time of the water rate proportionally regulating valve from a degree of opening of the initial setting to a degree or opening corresponding to the set temp. is shortened and so the fed-out hot water temp. can be rapidly set to the set temp..