| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hot water storage type water heater capable of high efficiency operation at low cost. <P>SOLUTION: The hot water storage type water heater includes a reheating heat source circuit connected to a hot water tank 1 with a first connection opening (high-temperature water supply opening 2 upward of the tank) arranged upward of the hot water tank 1 and a second connection opening (reheating heat source hot water return opening 7) arranged lower than the first connection opening, a reheating heat exchanger 5 and a normal and reverse circulating pump 6 provided on the reheating heat source circuit, hot water supply piping (hot water supply high temperature water piping 8) for connecting the reheating heat source circuit and a hot water destination, a first temperature detecting means 104 for detecting the temperature of hot water in the hot water supply piping, and a control part (control device 110). The control part controls the normal and reverse circulating pump 6 in a normal direction when supplying the hot water taken out from the first connection opening to the reheating heat exchanger 5 and controls the normal and reverse circulating pump 6 in a reverse direction on the basis of detection result of the first temperature detecting means 104 when supplying the hot water taken out from the second connection opening to the hot water supply piping. <P>COPYRIGHT: (C)2012,JPO&INPIT |
