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Bentone B40 MF/B45-2 MF
For installers
4.7 Nozzle assembly control, brake
plate
The nozzle assembly control is used to achieve the most favourable pressure
drop across the brake plate as possible in the various power stages.
1 nozzle (B40 MF)
The nozzle assembly control is manually adjusted (B) in order to achieve
optimal pressure loss for good combustion.
2 nozzles (B45-2 MF)
The nozzle assembly control is manually adjusted in order to achieve optimal
pressure loss for good combustion. Brake plate position is controlled
primarily by the second stage effect.
Set the desired position on the scale (C) using the set screw (D) (left turn
reduces pressure loss, the brake plate is moved outward).
If pulsation occurs, the changed pressure drop over the brake plate may
result in the pulsation stopping
4.8 Air setting B40 MF
Set the operations switch (S1) on the on position (I). Loosen the screw (E)
that locks the air adjustment knob. Adjust the position of the air damper
using the wheel until the desired air fl ow is achieved. Clockwise adjustment
reduces the amount of air, whilst an anticlockwise adjustment increases
the air fl ow. After adjustment, lock the damper position using the screw (E).
Damper position can be read on the damper scale (F). Check the air settings
by conducting a fl ue gas analysis.
B
C
F
E
C
D
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