| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an energy saving-type combined hot water supply heat source system stable in its tapping temperature. <P>SOLUTION: Both of a cogeneration hot water supply heat source device for supplying the hot water stored in a hot water storage tank to a water supply destination by utilizing exhaust heat of a power generator, and an auxiliary hot water supply heat source device having a function for supplying the hot water prepared by heating the passing water to the water supply destination, are mounted, and the water supply operation of these devices is controlled by a control device 44. The threshold value data corresponding to the heat storage quantity of the hot water storage tank, based on an upper threshold value and a lower threshold value smaller than the upper threshold value, is stored in a threshold value data memory part 39, a value corresponding to the heat storage quantity in the hot water storage tank is determined on the basis of the monitor information relating to the detection of the heat storage quantity of an operating state of the cogeneration hot water supply heat source device by the cogeneration hot waster supply heat source device, the hot water is supplied by switching the hot water heat source from the hot water storage tank to the auxiliary hot water heat source device when the determined value is lower than the lower threshold value, and the hot water supply heat source is switched to the hot water storage tank to supply the hot water when the determined value is raised to be more than the upper threshold value. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
