| 摘要 |
PURPOSE:To rapidly converge supplied hot water temp. to the set value by controlling a throttle at a gas supply pipe path in such a manner that a measured value of supplied hot water temp. is compared with the set value and then the pressure target value of gas supplied to a burner before a nozzle is calculated to make gas supply pressure to the target value. CONSTITUTION:When supplied hot water temp. is varied by change of flow amount etc. of hot water supplied from a hot water supply hole 4, its temp. is found out by a hot water temp. detector 7 and a detected value is put in a control device 8 of a gas hot water supplier and the gas target value before a nozzle is calculated from the detected value of temp. settled by a hot water temp. setting device 9. After the target value is compared with the pressure before the nozzle fond out by a pressure detector 34 of a gas supplied amount control device 11, a calculated control signal is put into a pulse motor 22 as a pulse signal. An output shaft 23 rotates by the angle in proportion to the pulse signal and thereby, a rotating plate 19 rotates on a fixed plate 17 and width of a groove 20 facing an opening 18 is changed and the gas pressure before the nozzle is controlled to coincide with the target value calculated by the gas hot water supplier control device 3. |
