| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a low cost and simple hot-water supply system by keeping accuracy of a time displayed on each remote control and by simplifying a time change process and a time synchronization process in each remote control. <P>SOLUTION: A microcomputer 92 of a kitchen remote control 3 displays a time indicated by first time data based on an output pulse of a timekeeping oscillation circuit 75 transmitted from a bathroom remote control 2 when a time change operation is not being executed, transmits the first time data to the bathroom remote control 2 as second time data, displays a counted time based on an output pulse of a microcomputer driving oscillation circuit 93 until a predetermined time elapses when a time change operation is executed, and transmits data indicating the counted time to the bathroom remote control. A microcomputer 73 of the bathroom remote control 2 changes a counted time of a timekeeping means 80 to a time indicated by the second time data when the time indicated by the first time data transmitted at the nearest timing is different from the time indicated by the second time data. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
