| 摘要 |
PURPOSE: A method for controlling an electric boiler is provided to stably and properly utilize electricity at midnight with preventing the malfunction of the electric boiler by uniformly consuming the midnight electricity. CONSTITUTION: Firstly, it is determined whether the present time counted in a control device is a midnight electricity time. If the present time is not the midnight electricity time, the power supplied to electric heaters is shut off to finish the heat accumulating step. Then, a next heat accumulating step is prepared by returning to an initial step. If the present time is the midnight electricity time, the power is selectively supplied to the electric heater based on the temperature of heating water detected from a temperature detecting sensor. If the present time is the midnight electricity time, at least two electric heaters are gradually controlled so as to uniformly consume the midnight electricity over the whole midnight electricity time.
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