HOT WATER AND WATER MIXING DEVICE

摘要

PURPOSE:To prevent occurrence of the water hammer by opening fast a flow rate control valve for quick supply of the hot water mixed with water when the start of supply of the mixed hot water is set by a hot water supply setter and then closing slowly the control valve when the supply setter sets the stop of supply of the mixed hot water. CONSTITUTION:A flow rate control valve 21 is closed with push of a switch 33 of a setter 30 and supply of the mixed hot water is stopped. At the time of this stop, the time during which a controller 37 closes the valve 21 via a flow rate control valve motor 25 is set more slowly than the opening time of the valve 21. Thus the valve 21 is closed at such a speed that causes no water hammer. For instance, the valve 21 is opened in 1-2sec so that the mixed hot water is supplied as early as possible after push of a switch 31 when supply of the mixed hot water is started. While the flow path is closed in 4-5sec after push of the switch 33 at the time of stop of supply of the mixed hot water.