| 摘要 |
PURPOSE:To prevent inadequate temperature of hot water after the fluctuation in the amount of water is stopped, by making the amount of water passing equal to the amount before a change signal is transmitted, when the change signal of a signal generator, which transmits a signal that changes the amount of water passing of a water-amount adjusting valve with a time, is stopped. CONSTITUTION:The amount of water is adjusted to the desired amount by a user. The temperature of hot water is set at an aequate temperature by a gas- quantity adjusting device 2. The amount of water at this time is an initial preset water amount. When a switch 19 is closed, the amount of water changes by the signal transmitted from a signal generator 17 continuously. At this time, the initial preset water amount is stored in a preset signal memory part 18. Therefore, when the switch 19 is opened, the amount is returned to the same amount of water as the initial preset water amount. |
