| 摘要 |
PURPOSE:To enable to supply immediately hot water even if any of a plurality of taps is opened, by a method wherein the titled device is so constituted that a hot water supply course and a hot water circulation course are formed by changing over a three-way valve, and at the time when the tap is not opened, supply hot water whose temperature is close to a predetermined value is circulated within piping extending over the whole of the inside of the same by operating the titled device on the hot water circulation course. CONSTITUTION:A hot water supply return pipe, which is so constituted that it is made into a connecting pipe from the topmost part 10 of a hot water supply feed pipe 9, becomes close to the hot water supply feed pipe 9 and heat is conducted easily, is returned to a hot water supply machine body 1 and connected with a three-way valve 14 through a circulating pump 13. The three way valve 14 is connected electrically by a cable wire 16 with a remote control part 15 and either a hot water supply course to be shown by an arrow (a) or a hot water supply circulation course to be shown by an arrow (b) is formed by changing over the three-way valve 14 through operation of a switch by the remote control part 15. When the circulating pump 13 is operated simultaneously with performing of changeover of the three-way valve 14 so that the course becomes the hot water supply circulating course as shown by the arrow (b) after the tap has been closed, water in the hot water supply feed pipe 9 and the hot water supply return pipe 12 is circulated, a water flow switch 5 becomes active and the burner 2 starts combustion. |
