baltur TBG 35 Notice D'instructions page 16

ELECTRODES/IONISATION PROBE ADJUSTMENT DIAGRAM
Mod.
TBG 35 - 35P
ADJUSTING AIR ON THE COMBUSTION
HEAD
The combustion head has an adjustment device that allows
the air passage between the disk and the combustion head to
be 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 allows greater penetration
into the fuel and therefore excellent mixture and flame stability.
High air pressure upstream of the disk may be necessary to
prevent flame fluctuations, this is particularly essential when the
burner works on the combustion chamber that is pressurized and/
or at a high thermal 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 you have to start the adjustment with the device that
closes the air at the combustion head in an intermediate position,
switching on the burner for approximate adjustment as explained
previously.
When the maximum desired supply has been reached, the
position of the device that closes the air at the combustion head is
corrected, moving it forward and backwards, until the right amount
of air is flowing to the supply with the air shutter opened
slightly.
A B C
4 5 4
14 / 20
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Legend:
1- Ionisation electrode
2- Ignition electrode
3- Deflector disk
4- Mixer
5- Gas outlet pipe
BURNER X
TBG 35 / 35P 3 ÷31
X= Distance combustion head-disk; adjust the distance X following
the indications below:
a) loosen screw 1
b) turn screw 2 to position the combustion head 3, referring to
index 4.
c) adjust the distance X between the minimum and maximum
according to the indications in the table.
The above adjustments are indicative only; position the
!
combustion head according to the characteristics of the
combustion chamber
COMBUSTION HEAD ADJUSTMENT SCHEME
Value indicated by
index 4
0 ÷ 6