| 摘要 |
PURPOSE:To enable a massage effect to be applied with a desired hot water temperature during use of shower by a method wherein a driving device for making variable amount of water in a water amount control unit for controlling volume of water passing through a heat exchanger is driven by a signal from a signal producing unit and the amount of water is made variable. CONSTITUTION:In a hot water supplying device provided with a driving device 16 for making a variable amount of water in a water volume control unit 1, a calory amount of heater unit 21 is proportionally controlled with a gas proportional control unit 20 in such a way as a hot water temperature sensed by a thermo-sensitive element 22 becomes a hot water temperature set by a temperature control device 23. When the switch is manually or automatically closed, a signal is sent from a memory part 17a, amplified, transmitted from the signal producing unit 17 to the driving motor 15 to cause the water volume adjusting valve 10 to be turned in its normal or reverse direction. A throat of valve hole 10a is varied under a rotation of the water volume adjusting valve 10, a differential pressure in the valve hole 10a is acted upon the diaphragm 7 to drive the control valve 4 and then the water volume is varied. The water volume is gradually varied in response to the signal produced from the signal producing unit 17. |
