20
Bentone
165 105 24-2
5.3
Air setting
Adjust the air setting by starting the burner and loosening the screw (E) that
locks the air damper adjustment knob. Adjust the air damper position to the
desired amount of air and lock the damper position with screw (E). The damper
position can be read on the damper scale (F). Check air settings with fl ue gas
analysis.
5.4
Brake plate adjustment
The position of the brake plate must be adjusted to achieve the most favorable
pressure drop across the brake plate. Loosen screw (C) and adjust the position
of the brake plate with screw (B) for good combustion.
C
B
F
E
Excess air fl ue gases
Max. % CO
2
% O
2
% CO
2
Lambda 1.2
3–5
≈
12.5
15.4
Recommended excess air
