| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a solar energy assisted hot water supply system capable of preventing the damage and failure of an appliance constituting a solar heat collecting portion and its associated parts by solar heat in stopping a driving source such as a pump. <P>SOLUTION: A water pipe 14 is connected with a water feed-in pipe portion 1a, and the water from the water pipe 14 can be made to pass through a water passing portion 2c of the solar heat collecting portion 2 when the pump P is stopped. This hot water supply system preferably comprises a temperature sensor 18 for detecting a temperature of the solar heat collecting portion 2, valves 16, 17 for opening and closing the water pipe 14, valve opening/closing driving portions E1, E2, and a control portion 19 outputting a command signal to open the valves 16, 17, to the valve opening/closing driving portions E1, E2 when a temperature reaches a prescribed critical temperature on the basis of a signal from the temperature sensor 18. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
