baltur BTL 3 Manual De Instrucciones página 30

IGNITION AND ADJUSTMENT
By turning adjuster screw (see 0002933100), set air register and
flame disc to the position that would appear correct on the basis of
the amount of fuel to be burnt (see table).
Set main circuit breaker to OFF in order to connect and switch
on the burner. If necessary, correct the flow of combustion air by
adjusting the register and the position of the flame disc (adjuster
screw D). The burner is fitted with adjuster screw for flame disc
position; such device allows combustion to be optimised by reducing
and increasing the flow of air between disc and head. It is usually
necessary to reduce (unscrew D) the flow of air between disc and
head when running with lower fuel delivery, whilst such passage
should be proportionally greater (screw D) when the burner operates
with higher fuel delivery. Having altered the position of the flame disc,
it is normally necessary to adjust the position of the air register, and
subsequently check that ignition takes place correctly. The BTL 3H
E
burner is fitted with a light-oil heater at the nozzle. This device means
that better atomisation is obtained and thus improved combustion.
N
G
L
I
AIR REGULATION PRINCIPLE DIAGRAM AND DISK-ELECTRODES SETTING
S
After having installed the nozzle, check the
H
correct position of the electrodes and disk
according to the following levels. It's adviseable
to check levels after every intervention on
head.
N.B. To prevent damage to the support or
the pre-heater effect nozzle assembly/disas-
sembly tasks with the aid of a wrench and
counter-wrench.
N.B. Under certain working conditions it may
be better to reduce the distance between the
nozzle and the deflector disk
- Position the disc-electrodes unit on the
nozzle-carrying element as illustrated in
the diagram.
- Tighten the unit via the screw "A".
- "B" position any pre-heater.
- Head adjustment is made by the screw
(D), as for indication of index (C).
- Screw to open the airway between disc
and head, unscrew down to close.
PREPARATIONS FOR START UP
It should be remembered that 1 kg of light oil is equivalent to
approximately 10.200 kcal). Make sure that the return pipe in the
tank has no obstructions, e.g. gate valves, closed plugs etc.
etc. Any eventual obstruction would cause a breakage in the
sealing surface situated on the pump shaft. Close the main switch
and the boiler thermostats in order to start up the motor and the
ignition transformer. Upon completion of the pre-ventilation time, the
solenoid valve is activated. the electrovalve will cut in and expose
the photoresistant cell to a source of light until the burner stops (shut
down). When the pipelines have been filled up (and when fuel has
come out of the nozzle), stop the burner and put the photoresistant
cell back in its seat.
NOTE: Should it be necessary to purge air, this can be
done by loosening the special fitting which the pump
is provided with (see 0002900910). Do not illuminate
the photoresistant cell before the electric valve has cut
in because, in this case, the control box will go to "shut
down".
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