| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a hot water supply device capable of preventing shortage of supplied hot water and capacity shortage of heat exchange in peak shift time in a specific time zone. <P>SOLUTION: A predetermined amount of hot water is reheated to an upper part of a hot water storage tank at start of the specific time zone, and then, peak shift control is performed. When reheating operation is started before the specific time zone and the specific time zone comes during reheating operation, reheating operation is continued until the reheating operation is completed, the predetermined amount of hot water is reheated to the upper part of the hot water storage tank, and then, peak shift control is carried out. When the remaining hot water amount in the hot water storage tank is reduced in the peak shift time and the temperature of the hot water in the upper part of the hot water storage tank is lower than the heat exchange allowable temperature for allowing heat exchange by a bathtub heat exchanger, the predetermined amount of hot water is reheated to the upper part of the hot water storage tank, and then peak shift control is carried out. In the peak shift time of the specific time zone, shortage of supplied hot water and capacity shortage of the heat exchange can be prevented. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
