| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a hot water supply system capable of preventing water temperature from abnormally rising even in the case that cold water can not be supplied, for example, when frequency of hot water supply is extremely little and capable of eliminating a risk of producing a burn on a user. <P>SOLUTION: A temperature detector 17 provided to the circulation hot water supply pipe 5 of a secondary side of the hot and cold water mixing valve 4, a control valve 14 provided to the heated hot water supply pipe 3 and a control device 20 for controlling open and close of the control valve 14 with the temperature detector 17 are provided in the hot water supply system consisting of a hot water supply machine 1, a circulation hot water supply pipe 5 for circulating and supplying hot water to a position of use, a circulation pump 9 provided to the circulation hot water supply pipe 5, a heated hot water supply pipe 3 for supplying hot water heated by the hot water supply machine 1 to the circulation hot water supply pipe 5, a hot and cold water mixing valve 4, provided to the circulation hot water supply pipe 5, for connecting the heated hot water supply pipe 3 and a water replenish pipe 2 for supplying replenish water to the hot water supply machine 1 and a hot water tank 13. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
