| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hot water supply system capable of improving heat efficiency by judging the use of supplied hot water without comprising a flow rate sensor and operating one heat source machine of high heat efficiency with priority at a maximum. <P>SOLUTION: The water of low temperature supplied from a water supply source 5 is branched to a hot water storage tank 1 and a heat pump water heater 2 through a three-way joint 41. A temperature sensor 43 capable of measuring a temperature of hot water passing in a flow channel between the three-way joint 41 and the water supply source 5, and a temperature sensor 44 capable of measuring a temperature of the hot water passing in a flow channel between the three-way joint 41 and the hot water storage tank 1 are disposed. Under the constitution, the hot water storage tank 1 is controlled to be stopped when the detection temperatures of the temperature sensor 43 and the temperature sensor 44 are different from each other over a prescribed error range when the heat pump water heater 2 is in operation. <P>COPYRIGHT: (C)2010,JPO&INPIT |
