baltur TBML 50 ME Bedienungsanleitung Seite 21

air regULaTiOn On THe COmBUsTiOn HeaD
The combustion head has an adjustment device so that the air
passage between the disk and the combustion head is opened
or closed. You are thus able to obtain, closing the passage, high
pressure upstream of the disk even at low capacity. The high speed
and turbulence of the air provides for its greater penetration into the
fuel and therefore an excellent mixture and flame stability. It can
be indispensable to have high air pressure upstream of the disc to
prevent flame pulsations. This condition is practically indispensable
when the burner works with a furnace that is pressurized and/or has
a high heat load.
It is clear from the above that the device that closes the air to the
combustion head must be set at a position such as to always obtain
very high air pressure behind the disk. It is advisable to adjust it in
such a way as to obtain a closure of the air at the combustion head
that will require a significant opening of the air shutter that regulates
the aspiration flow from the burner fan.This must of course be the
case when the burner is working at the maximum desired supply.
In practice, start by adjusting the device that closes the air on the
combustion head to an intermediate position, turning on the burner
for a preliminary adjustment as described above.
When the required maximum supply has been reached, the
position of the device that closes the air at the combustion head
has to be corrected, moving it forward and backwards, in order
to obtain an air flow suitable for the supply with the air shutter
considerably open.
HeaD aDJUsTmenT Diagram
X= Distance combustion head-disk; adjust the distance X following
the indications below:
a) loosen screw 1
b) adjust the distance X of the air adjustment ring 2 as shown in
the table.
c) tighten the screw 1.
BUrner
TBML 50 ME
The above adjustments are indicative only; position the
air adjustment ring according to the characteristics of the
combustion chamber.
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X Power kW
65 ÷ 66 260 ÷ 350
70 ÷ 71 350 ÷ 430
78 ÷ 79 430 ÷ 500