17Bentone
165 105 24-2
C
B
F E
4.7 Air setting
Set the control switch (S1) to the On position (I), loosen the screw (E) that
locks the knob for air damper adjustment. Adjust the position of the air
damper to the desired amount of air and lock the position of the damper with
screw (E). The position of the damper can be read on the damper scale (F).
Check air settings with fl ue gas analysis.
Excess air fl ue gases Max. % CO
2
% O
2
% CO
2
Lambda 1.2
3–5 ≈12.5 15.4
Recommended excess air
4.8 Brake plate adjustment
The position of the brake plate must be adjusted to achieve as favorable
pressure drop across the brake plate as possible. Loosen screw (C) and
adjust the position of the brake plate with screw (B) for good combustion.
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