baltur TBG 55PN-V Instructions Manual page 40

COMBUSTION HEAD AIR
ADJUSTMENT
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 may be necessary
to have high air pressure before the
disk to prevent flame fluctuations,
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
blast-pipe must be set at a position
such as to always obtain very
high air pressure behind the disk.
It is advisable to adjust 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
maximum desired supply.
X= Distance between combustion head and disk; adjust the distance X following the indications below:
a) slacken screw 1
b) turn screw 2 to position the combustion head 3, referring to index 4.
c) adjust the distance X between minimum and maximum according the indications in the table.
BURNER
TBG 55PN
TBG 85PN
TBG 120PN
TBG 150PN
TBG 210PN
N.B. The above adjustments are indicative only; position the combustion head according to
the characteristics of the combustion chamber
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
explained previously.
When the maximum desired supply
COMBUSTION HEAD ADJUSTMENT SCHEME
X
4 ÷ 28
5÷ 36
17÷ 54
17÷ 36
14÷ 51
38 / 71
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has been reached, the
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
as flowing to the supply, with the air
damper in significantly open.
Value indicated by index 4
1 ÷ 3,7
1 ÷ 4,5
1 ÷ 5
1 ÷ 3,2
1 ÷ 5
position