| 摘要 |
PURPOSE:To contrive to make small in size of valves and a driver, by a method wherein a water controller comprised of a regulating valve provided with a driver and a throttle valve is provided in a communicating passage which communicates pressure chambers partitioned by a diaphragm. CONSTITUTION:In a water controller 1, a primary chamber 6 and a secondary chamber 8 are partitioned by a diaphragm 7, and a controlling valve 4 interlocked with the diaphragm 7 is provided. A pressure difference generating body 13 and a heat exchanger 14 are communicated to the primary chamber 6, and a heater 25 for the heat exchanger 14 is provided. The primary chabmer 6 and the secondary cahmber 8 are communicated to each other by the first communicating passage 16, while the secondary chamber 8 and the body 13 are communicated to each other by the second communicating passage 17. The regulating valve 18A provided in the passage 16 is provided with the driver 21, and the throttle valve 18B is provided in the passage 17. The water controller provided with the regulating valve 18A and the throttle valve 18B is controlled by a controller 26 which calculates the temperature of hot water supplied and a temperature set point. Accordingly, it is contrived to make small in size the valves and the driver. |
