| 摘要 |
PURPOSE:To promote the rise-up of hot-water temperature by a method wherein a valve, limiting the amount of feed water upon beginning the operation of the tap-controlled hot-water heater for few seconds, is provided in a feed water pipeline or a hot-water supplying pipeline. CONSTITUTION:A piping 4 for the gas supplied to a burner 3 is provided with a main solenoid valve 5, a governor 6 and a gas proportional valve 7 while the feed water pipe 10, connected to a heat exchanger 8, is provided with a valve 11, a feed water temperature sensor 12 and a water volume sensor 13. All the equipments, except the governor 6, are connected to a control box 14 to control the gas proportional valve 7 by a set temperature, a feed water temperature and the amount of supplying water. When the operation is initiated by opening a water cock 9, the water volume sensor 13 detects the stream of the water and sends a signal D to the valve 11 to close the valve 11 for few seconds. |
