22
Bentone BFG1
Ι
Π
4.4.1 Nozzle assembly adjustment
The burner is equipped with a control which changes the position of the brake
plate in the blast tube. This is used to set the correct pressure differential across
the combustion device and thereby get a good combustion without pulsations.
The setting to be used depends on the set effect and the overpressure in the
boiler. (For basic setting, see Technical data).
Setting brake plate
H1 och H2
• Smaller gap: turn the screw to the left
• Larger gap: turn the screw to the right
H3
• Smaller gap: turn the screw to the right
• Larger gap: turn the screw to the left
The setting of the brake plate position affects the air flow. Therefore, the air
must always be readjusted with the air regulation device of the burner.
4.4.2 Air intake adjustment
The air setting is very important to get good combustion with neither too
much nor too little air. The air flow for combustion is adjusted by turning the
air adjusting screw with an Allen key. How open the air control should be is
determined by the fired-in effect and overpressure in the boiler, as well as
other settings on the burner such as the position of the brake plate.
(For basic setting, see Technical data).
4.4.3 Air quantity setting procedure
The setting of the air control depends on how the screw, with which the
air adjustment is done, is installed. If the air intake is pointing downwards
as in Fig.
Ι
, a clockwise turn gives a decrease in the air flow and a counter-
clockwise turn an increase in the air flow.
If the air intake is pointing upwards as in Fig.
Π,
a clockwise adjustment
increases the air flow and a counter-clockwise adjustment decreases it.
Summary of Contents for BFG 1 H1
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Page 47: ...47 Bentone BFG1 Alt 1 Acc to DIN 4791 Alt 2 Alt 3 8 2 Wiring diagram ...
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