| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide the method of removement of data for a hot-water supplier control substrate, which is capable of effecting the removement of data from an old control substrate to a new control substrate simply and surely. SOLUTION: An old control substrate 1, replaced by a new control substrate 1', and the new control substrate 1' are provided with wireless communication means 4, 4' respectively to transmit data, stored in the data memory means 3 of the old control substrate 1, to the new control substrate 1' through the wireless communication means 4, 4'. The new and old control substrates 1, 1' receive the supply of electric power from the power supply substrate 9 of a hot-water supplier simultaneously and respectively. An elapsed time from the starting of the power supply is counted mutually by counting means 8, 8' and, when both of the counting values coincide, the data are transmitted.</p> |
