| 摘要 |
PROBLEM TO BE SOLVED: To provide, in a hot water mixing device, one unit in which a high hot water pressure and a water supply pressure can be detected at a low cost and easily; and the other unit enabling it to be easily judged whether or not a pressure difference between the high hot water pressure and the water supply pressure is kept in a set range.SOLUTION: A hot water mixing device 1 in which hot temperature water got from a hot water passage 12 and low temperature water got from a water supply passage 11 are mixed to each other through a mixing valve 13 to cause hot water of set temperature to be fed is constituted in such a way that the device 1 has a pressure sensor 21 for use in detecting a water pressure installed at a hot water discharging passage 14 at a downstream side of the mixing valve 13, a water supplying pressure of low temperature water flowing at the hot water discharging passage 14 is detected under a state in which the hot water passage 12 at the mixing valve 13 is closed and at the same time a high hot water pressure of high hot water flowing at the hot water discharging passage 14 is detected under a state in which the water supply passage 11 of the mixing valve 13 is closed, and the device 1 has a control unit 16 for judging it, on the basis of these detected signals, whether or not a pressure difference between the water supply pressure and the high hot water pressure is kept in a set range and at the same time for informing this result of judgement through informing means. |
