| 摘要 |
PURPOSE:To realize the reduction in the consumption of a built-in battery of a remote controller controlling remotely the hot water supply equipment. CONSTITUTION:A remote controller 30 is provided with a secondary battery 36 supplying power to the remote controller itself, a voltage detection means 37 detecting a voltage of the battery 36, and a remote controller side radio communication means 31 sending voltage information of the battery 36 detected by the voltage detection means 37 to a hot water supply equipment 1, and the hot water supply equipment 1 is provided with a hot water supply equipment radio communication means 6 receiving information sent from the remote controller side radio communication equipment 31, a timer means 13 counting the lapse of a prescribed time after the control command signal from the remote controller 30 is not received, and a communication enable means 12 leaving a remote controller having a largest residual voltage and commanding OFF of other remote controllers after lapse of a prescribed time by the timer means 13. |
