| 摘要 |
PURPOSE:To provide the combustion control device capable of giving a warning when the quantity of residual oil is less than a predetermined value and also capable of extinguishing fire automatically after a lapse of a desired time. CONSTITUTION:In case where the quantity of residual oil in an oil basin 1 is above an oil level 8, an oil fan heater is in its normal combustion condition and when afterward, the quantity of the residual oil reduces below the oil level 8, terminals 4 of a float switch 2 are opened to give an oil supply warning. The oil fan heater operates in the normal condition while the oil supply warning is kept generated but in this case, an oil supply lamp 17 is turned ON and OFF by a residual oil quantity detecting circuit 15 and a buzzer 16 is rung intermittently to thereby inform the user of a shortage of the oil. Further, after a lapse of a predetermined time T from the time of generation of the oil supply warning, a relay 11 is turned OFF by a timer circuit 18 irrespective of the qantity of the residual oil to thereby stop the operation of the oil fan heater automatically. Further, the oil supply lamp 17 is kept ON by te circuit 15, and by stopping the buzzer 16 the user is informed that the oil fan heater has automatically stopped due to the shortage of the fuel. |
