| 摘要 |
PURPOSE:To prevent the generation of a water hammer phenomenon in a hot water supply device having a chuting hot water supply function. CONSTITUTION:In a three-way valve 24 for connecting a chuting hot water supply passage 25 to a bath circuit 18, a leak hole through which the chuting hot water supply passage communicates with the bath circuit at a totally closed position upon switching from a bath circulating side to a chuting hot water supply side is provided. A chuting hot water supply solenoid valve 27 is opened under a leaking state by the leak hole. Thus, a sealed-off pressure in a hot water supply pipeline is gradually lowered, so that the generation of a water hammer phenomenon is prevented by eliminating the sudden deterioration of pressure. |
