Combustion Adjustment - baltur BTG 15P Manual De Mantenimiento, Uso E Instalación

AIR REGULATION ON COMBUSTION HEAD
The combustion head is equipped with a regulation device, so as to
open or close the air passage between disk and head. By closing
the passage, it is thus possible to obtain a high pressure upstream
of the disk also for low flow rates. The high air speed and turbulence
allows a better penetration of the same into the fuel and therefore, an
excellent mixture and flame stability. It may be necessary to have a
high air pressure upstream of the disk, so as to prevent flame pulses.
This condition is indispensable when the burner operates on pres-
surised combustion chamber and/or with high heating load. From
what said above it is evident that the device closing the air on the
combustion head must be set to such position as to always obtain,
behind the disk, a very high air pressure value. It is advisable to
regulate so as to have such air closure on the head as to require the
opening of the air damper regulating the flow of the burner ventilator
suction. Of course, this condition must only occur when the burner
is operating at the maximum desired output.
In practice, the regulation must start with the device that closes the
air on the combustion head in an intermediate position, igniting the
burner for an indicative regulation as explained above.
When the maximum desired output is reached, correct the position of
the device closing the air on the combustion head by moving it forwards or
backwards (0002934190) so as to have a suitable air flow for the output,
with suction air regulation damper sensibly open.
N.B. To facilitate the combustion head regulation, see tables
(n° 0002935000 for BTG 15P, 0002934171 for BTG 20P and
0002935180 for BTG 28P).
REGULATION SERVOMOTOR "STA13B0.36/8" WITH PREVENTILATION IN 1
1 - ELECTRIC DIAGRAM
2 - ADJUSTING SCREWS
3 - 2 FLAME AIR ADJUSTING CAM
ND
4 - 1 FLAME AIR ADJUSTING CAM
ST
5 - 2 FLAME VALVE ACTUATING CAM. IT MUST BE ADJUSTED
ND
BETWEEN THE 1 FLAME CAM AND THE 2
ST
6 - ELECTRICAL CONNECTIONS
7 - FIDUCIAL MARK
TO MODIFY THE ADJUSTMENT OF THE CAMS USE THEIR SCREWS.
THE MARK OF THE RED RING INDICATES THE ROTATION AN-
GLE. ON THE REFERENCE SCALE, SET FOR EACH CAM
N.B.: Air flow rate in the 1st flame position must correspond to
at least 50% of the total air flow.
N.B.
FLAME ONE
ND
9 / 20
0006080895_200903
Check that ignition is regular because if the controller has
been moved forward, the output air speed could be so high
as to make ignition difficult.
In such a case, it is necessary to move backwards, degree
by degree, the regulator until reaching the position in
which the ignition is regular and accept this new position
as definitive.

COMBUSTION ADJUSTMENT

D DEFLECTOR DISK ADJUSTER SCREW
E DEFLECTOR DISK POSITION INDEX
(0 = MIN 4 = MAX for BTG 15P)
(0 = MIN 3 = MAX for BTG 20P)
(0 = MIN 4 = MAX for BTG 28P)
FLAME
ST
E
N
G
L
I
S
H
N° 0002934230
REV. 21/07/2004