Preparations For Start Up; Starting Upand Regulation; Use Ofthe Burner; Safety Checks - baltur SPARK 18 W Manuel D'instructions

PREPARATIONS FOR START UP

Control that the nozzle (45° spray angle) applied is suitable for the boiler potentiality. The table shows the delivery
rates in Kg/h of light oil with respect to the nozzle size and the pump pressure (normally 12 bar). 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. 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 and, after approximately 10 seconds, the
electric valve 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 0002900480; 0002900680). 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".

STARTING UPAND REGULATION

Loosen the "A" clamp screw (see 0002932101 ) and put the air shutter regulator in the position considered ne-
cessary in function with the quantity of fuel to be burned. Close the main swich in order to start up the burner.
Correct, if necessary, the combustion air delivery by adjusting the suction regulation.
The burner is equipped with screws which regulate the flame disk position and this device permits a perfection of
the combustion by reducing or increasing the air passage between the disk and the head. It is normally necessary
to reduce (turn in an antidockwise direction the relative screw) the air passage between the disk and the head
when operating with a reduced fuel delivery. This passage must be proportionately opened more (turn relative
screw in a clockwise direction) when the burner is working with a highter fuel delivery.
After having modified the flame disk position, it is normally necessary to correct the air shutter regulator positions
and, subsequently, verify if ignition occurs correctly.
The burner is provided with the pump set at 12 bar, to adjust this value rotate the relative screw.

USE OFTHE BURNER

The burner operates fully automatically, therefore it is non necessary to carry out any kind at adjustment during
its operating. The "block" position is a safety position reached by the burner automatically when some of the com-
ponents 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 soave 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 disconnect the burner electrically.
MAINTENANCE
At the end of the heating season, it is usually advisable to clean the filter, blast tube (disc, insulators, electrodes,
nozzles), combustion air passages and photo conductive cell. To clean nozzle passages, use soft material (e.g.
wood, plastic). Replacement of nozzles every 12 months of operation is recommended.

SAFETY CHECKS

Checks the following:
1 ) Burner stoppage by opening the thermostats;
2) "Blocking" by shading the photoconductive cell.
To unblock push the appropriate button.
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