| 摘要 |
PURPOSE:To always secure a set temperature for hot water and to improve the efficiency of a hot water supply system by controlling both the supply of heat to an auxiliary heat source device and the heating capacity of said source device after detecting the hot water temperatures at a main heat source side and the hot water supply side. CONSTITUTION:A main heat source uses a heat collector A and a regenerative tank B of solar energy, and the hot water temperature of the main heat source and that of the hot water supply side are detected TS and TM, respectively. These detected temperatures are compared with a desired set hot water temperature 15 through a controller 16. Then changeover valves SV1 and SV2 are controlled together with the heating capacity H of an auxiliary heat source device 14 to feed the hot water of a desired temperature to a hot water supply path 12. If the hot water temperature of the main heat source is higher than the set level, the valves SV1 and SV2 are controlled for mixture with water F as shown solid-line arrows in the figure. While in case the hot water temperature of the main heat source is lower than the set level, the valve SV1 is controlled to heat up the hot water through the device 14 as shown by a dotted line arrow. Thus the hot water of a desired temperature is supplied to the path 12. In addition, the capacity H of the device 14 is also controlled by the controller 16 on the basis the detected TM hot water supplied. |
