Enertech Bentone BFG1, Installation And Maintenance Instruction

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32 Bentone BFG1
3 Brown
1 Black
2 Blue
- Low pressure side
+ High pressure side
5.1.4 Setting of air pressure switch
The air pressure switch should block the burner if the air quantity is insufficient.
The air monitoring device should be set so that, if there is missing air supply at
the burner’s max. or min. capacity, it reacts before the monitored pressure is
less that 80% of the pressure on the controlled stage and before the CO-level
in the flue gases exceeds 1 per cent by volume.
To set, turn the scale on the air pressure switch clockwise. When the break
point is reached and the burner stops, read the value on the scale. Then turn
the scale counter-clockwise to the determined pressure, at which point the
air pressure switch should open according to valid norms. If nothing else
is indicated, decrease 20%. Perform repeated starts to ensure that the air
pressure switch is not set too narrow.
Setting area approx.: Type Max. pressure
1-10 mbar LGW 10 A2 500 mbar
2,5-50 mbar LGW 50 A2 500 mbar