Bentone BG 550i M, Installation And Maintenance Instruction

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Bentone
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172 515 91 2018-08-10
12.1.6.2 Adjusting the gas valve on the multi-block
1. Undo locking screw X.
2. Turn the knob for gas valve Y
Turning to right = smaller amount of gas
Turning to left = larger amount of gas
3. Do not forget to re-tighten locking screw X.
The amount should be adjusted by means of alternate
adjustment of the gas valve and pressure regulator. The
adjustment should be performed at maximum load when the fl ow
and pressure drop are at their greatest.
If this procedure is followed, the preferred reduction of pressure
in stages can be achieved. To maintain a good, robust supply
of gas and robust subsequent combustion, the pressure should
be lowered in stages between the adjustments to the pressure
regulator and then the gas valve. In other words, the regulator
pressure must be lower than the input pressure and the pressure
after the valve must be lower than the regulator pressure.
!
NB This adjustment can be used as a complement on burners with the LMV
control system with a butterfl y gas valve. The main adjustment of the amount of
gas takes place here with the gas butterfl y damper.
!
NB This adjustment is not suitable on burners with the LMV control system with a
butterfl y gas valve. The adjustment of the amount of ignition gas is made here with
the butterfl y valve.