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0006081437_201005
E
N
G
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S
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Mod.
A
B
C
TBG 35 PN
4
5
4
ELECTRODES/IONISATION PROBE ADJUSTMENT DIAGRAM
Legend:
1- Ionisation electrode
2- Ignition electrode
3- Deflector disk
4- Mixer
5- Gas outlet pipe
00
02
93
56
80
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 damper 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 damper opened slightly.
BURNER
X
Value indicated by
index 4
TBG 35 PN
3 ÷31
0 ÷ 6
!
The above adjustments are indicative only; position the
combustion head according to the characteristics of the
combustion chamber
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.
COMBUSTION HEAD ADJUSTMENT SCHEME
