| 摘要 |
PURPOSE:To simplify the constitution of a switching circuit for hot water supply by connecting a hot water feeding pipe to the hot water supply pipe from a furnace device which feeds hot water to the inner top of the hot water reservoir tank via a water flow control valve which opens and closes at preset temperatures, and connecting a bypass pipe for the circulated hot water ahead of the valve. CONSTITUTION:When the hot water temperature heated by a furnace device 1 is lower than the preset temperature, the water flow control valve 9 is closed, and low-temperature hot water returns to the lower part of the hot water reservoir tank 2 via a bypass pipe 9. When the hot water temperature reaches the set temperature by being heated continuously thereafter by the furnace device 1, the water flow control valve 5 automatically opens to allow high-temperature hot water to be supplied to the inner top of the hot water reservoir 2 via a hot water feed pipe 10. |
