| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To properly distribute hot water heated by utilizing solar heat to a plurality of hot water supply objects at a set temperature. <P>SOLUTION: The hot water heated by a solar collector 10 is adjusted to the set temperature through a temperature adjusting device 12 including a heating device 60 and a water mixing device 62, and supplied to the plurality of hot water supply objects through a passage 100. A plurality of gauging devices 16 respectively detect the amount of hot water supplied to each of the plurality of hot water supply objects. The heating device 60 is disposed at an upstream side of the water mixing device 62. When temperature difference obtained by subtracting the set temperature from a temperature of the hot water in a hot water storage tank 30 is less than first set temperature difference, only the heating device 60 is operated. When it is more than second set temperature difference larger than the first set temperature difference, only the water mixing device 62 is operated. When the temperature difference is more than the first set temperature difference and less than the second set temperature difference, both of the heating device 60 and the water mixing device 62 are operated. The heating device 60 is controlled to a second set temperature higher than the set temperature, and the hot water heated to the second set temperature by controlling the water mixing device 62 is mixed with the water to be cooled to the set temperature. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
