baltur BGN 300 DSPGN ME, Installation, Use And Maintenance Instruction Manual

Page: 52 / 64

ENGLISH
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AIR REGULATION ON THE COMBUSTION HEAD
The combustion head has a regulation device that allows the air
passage between the disc and the combustion head to be ope-
ned or closed. Closing the passage, you can obtain high pressure
upstream of the disc even at low flow rate. The high speed and
turbulence of the air provides for its greater penetration into the
fuel and therefore an excellent mixture and flame stability. High
air pressure upstream of the disc may be necessary to prevent
flame fluctuations, this is particularly essential when the burner
works on the combustion chamber that is pressurised and/or at a
high thermal load.
CAUTION / WARNING
Check that ignition takes place regularly, moving the diffu-
ser control and fastening knob gradually until you reach a
position in which ignition occurs regularly. For the first sta-
ge, limit the quantity of air to that which is strictly necessary
for safe ignition, even in the most difficult circumstances.
CAUTION / WARNING
Check that the combustion head is centred with respect to
the disk. An imperfect centring could cause a poor combu-
stion and overheating of the head with its subsequent rapid
deterioration.
DIAGRAM FOR REGULATION OF COMBUSTION HEAD AND
ELECTRODE DISK DISTANCE
1 - Ionisation electrode
2 - Ignition electrode
A
BGN 300 DSPGN ME 180
BGN 350 DSPGN ME 180
A - WRONG REGULATION
B - CORRECT REGULATION
1 - Combustion air damper inlet extremely closed
2 - Combustion head
3 - Disk
4 - Combustion head fastening and control knob
5 - Combustion head fastening and control knob
6 - Air passageway wide open
7 - Combustion air damper inlet wide open.
8 - Air passageway fairly closed.CAUTION: Do not close
completely.