| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a storage type hot water supply system in which cost is reduced by decreasing the kinds of pumps. <P>SOLUTION: The storage type hot water supply system 1 has a hot water storage tank 2 for storing hot water, a heat source machine 3 for heating hot water, and a high temperature hot water discharging piping 5. The hot water storage tank 2 and the heat source machine 3 are connected via a sending piping 6 in which a pump 8 is arranged and a return piping 7 in which a three way valve 13 is arranged. An instant hot water branched piping 9 is branched from the high temperature hot water discharging piping 5 and is connected to the hot water storage tank 2. A connecting piping 14 is branched from the return piping 7 via the three way valve 13 and is connected to the high temperature hot water discharging piping 5. The three way valve 13 is switched and hot water passes through the return piping 7, the connecting piping 14, the high temperature hot water discharging piping 5, and the instant hot water branched piping 9 and returns to the hot water storage tank 2 during the time of instant hot water. Thereby, the instant hot water can be carried out without need to arrange two kinds of pumps for heating hot water and the instant hot water because hot water is circulated by the same pump when heating hot water and during instant hot water circulation. <P>COPYRIGHT: (C)2012,JPO&INPIT |
