| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a combustion control method capable of preventing incomplete combustion in a burning appliance for a long time. Ž<P>SOLUTION: To obtain air quantity of blowing air necessary for satisfying required heat quantity required moment to moment in a combustion part, when electric power drive is performed with a predetermined applied voltage and a predetermined drive current to achieve the predetermined rotational frequency of a fan motor in accordance with a predetermined relational expression or relational table, an actual drive current which is a value of the drive current actually applied to the fan motor is detected, and based on a predetermined relational expression or relational table during normal combustion in the combustion part, air quantity equivalent heat quantity to be primarily obtained at the actual drive current value detected at that time is calculated (Step 59). The difference between the calculated air quantity equivalent heat quantity and the required heat quantity is detected (Step 60). When the difference becomes a predetermined difference or more, a drive current to a flow control valve is lowered to reduce a fuel gas supply amount to the combustion part (Step 61) or supply of fuel gas is cut off (Step 63). Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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