| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve a problem wherein a user experiences lateness of operation time, deterioration in heating efficiency and a shortage of hot water in a hot water storage tank after using the hot water supply device for a while in a case where a worker such as an electrician or a constructor for installing the water heater forgets various settings, exhausting of air, or a test operation necessary to be performed before operation. <P>SOLUTION: The water heater is equipped with a thermo-motive valve 17 connected in correspondence to a heat radiating means 12, a heating auxiliary tank 16, a supply water solenoid valve 22 for automatically supplying liquid to the auxiliary tank 16, and a water fill-up electrode 20 for detecting the liquid amount inside the heating auxiliary tank 16 is full. When the period of time for detecting an electric current from the water fill-up electrode 20 reaches a certain time T3, an operation for pouring liquid and bleeding of air is completed. <P>COPYRIGHT: (C)2007,JPO&INPIT |
