| 摘要 |
PROBLEM TO BE SOLVED: To provide a hot water supply apparatus system equipped with a remote operation unit which can deliver a variety of voices at a low cost. SOLUTION: In remote operation units 1a, 1b, connected to communicate data through communication mans 12a, 12b, data conventionally held individually in the remote operation units 1a, 1b as vice data to be delivered is stored, while being distributed, in fixed storage units 111a, 111b incorporated in the voice ICs 11a, 11b of respective remote operation units 1a, 1b. The data held conventionally, while being duplicated in respective remote operation units 1a, 1b, are stored in one remote operation unit 1a (or 1b) and are shared with the other operation unit. |
