| 摘要 |
PURPOSE:To enable intermittent hot-water supply by a method wherein the opening and closing of a hot-water on-off valve for a hot-water supply stopper is controlled by an opening control timer circuit and a closing control timer circuit. CONSTITUTION:At the OFF condition of a hot-water supply automatic stopping switch and ON condition of a intermittent hot-water supply switch 31, when the opening and closing time of a motor driving two-way valve 24 is set by each opening and closing time setting knob, an ON time timer circuit 38 and an OFF time timer circuit 39 are set up. Therefore, a relay 40 is set or reset by said both timer circuits 38, 39, a contact 41 is alternately changed-over and said motor driving two-way valve 24 is alternately opened or closed, accordingly, the hot-water supply for a hot-water supply channel is repeated intermittently. By such structure, the intermittence of hot-water supply can be contrived. |
