Use Of The Burner - baltur SPARKGAS 20 - 20W Mode D'emploi

a desciption of how to regulate
the valves).
6) Control that combustion occurs
correctly by using the appro-
priate instruments (CO
10% for methane gas - CO max.
= 0.1%).
7) After regulation, turn the burner
off and on again several times
to check that ignition occurs cor-
rectly.
8) When the has started up it is ne-
cessary to check as previously
shown, the gas delivery and the
combustion with the appropriate
instruments. When the results
are known, necessary, proceed
with varying the gas delivery and
relative combustion air in order
to adapt delivery to that required
for the specific case (boiler po-
tentiality). It's also necessary to
check if the CO
and CO values

are adequate (CO max. = about

10% for methane gas and CO =
0.1%).
9) Control the efficiency of the sa-
fety devices: the "shut down"
(by detaching the ionisation
electrode cable), the air pres-
sure switch, the gas pressure
switch, the gas pressure switch
and the thermostats).
AIR REGULATION ON THE
COMBUSTION HEAD (see
BT 8769/2 and 0002932161)
The combustion head is equip-
ped with a regulating device which
closes and opens the air passage
between the disk and the head. By
closing the passage it's possible to
achieve high pressure upstream
the disk for low inputs as well. High
velocity and turbulence ensure a
better penetration in the fuel, an op-
timum mixture and good flame sta-
bility. It might be necessary to have
high air pressure upstream the disk
in order to avoid flame pulsation and
it's considered practically indispen-
sable when the burner is operating
with a pressurised furnace and/or
thermal load. It's evident from the
above, that the device which clo-
ses the air on the combustion head
should be put in such a position as
to always obtain a decidedly high
air pressure value behind the disk.
It's advisable to regulate in such a
way as to achieve a closing of the
= about
air on the head; this will necessitate

a considerable opening of the air
shutter which regulates the flow to
the burner's fan suction. Obviously,
these adjustments should be car-
ried out when the burner is opera-
ting at maximum delivery desired.
In practice, start regulating by put-
ting the device which closes the
air on the combustion head in an
intermediate position, start up the
burner and make trial adjustments
as previously described.
When maximum delivery desired
has been reached, proceed with
correcting the position of the devi-
ce which closes the air on the com-
bustion head; move it backwards or
forwards in such a way as to obtain
an air flow suitable to the delivery,
with the air regulation shutter
in suction considerably open.
When reducing the air passage on
the combustion head, avoid closing
it completely.
N.B. Check that ignition occurs
regularly, because if the passage
between the disk and the head is
closed, it could occur that the air ve-
locity is so high as to render ignition
difficult. If this happens, gradually
open the regulator until it reaches
the correct position and ignition oc-
curs regularly. This position should
be definitive.
MAINTENANCE
The burner does not require special
maintenance, but it is good prac-
tice to check periodically that the
gas filter is clean and that the igni-
tion electrode is efficient. It is also
necessary to verify that the igni-
tion electrode's spark is produced
between the same electrode and
the disk. The combustion head may
need cleaning. During re-assem-
bly, special attention must be paid
to centring exactly the electrodes
(ignition and flame detection) in or-
der to avoid them going to earth or
short-circuiting which would result
in the "shut down" of the burner.
0006080479_00710

USE OF THE BURNER

The burner operates fully automati-
cally, therefore it is non necessary
to carry out any kind at adjustment
during its operating. The "block"
position is a safety position rea-
ched by the burner automatically
when some of the components of
the burners or the plant do not work
properly.
It is necessary to check then
whether the cause to the problem is
a dangerous one before unblocking
the burner.
The causes to the block may be
temporary, for example when air in
inside the pipes.
When it is unblocked, the burner
starts operating properly. If the
burner stops three or four times at
a stretch, it is necessary either to
loock for the problem and solve it or
ask for the intervention of the after
sales service.
The burner can remain in the "block"
position without any limit in time.
In emergency cases it is advisable
to close the fuel valve, and to di-
sconnect the burner electrically.
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