Sime 8099000, Installation, Use And Maintenance Instructions, Page: 9 / 12

2683
7 GB
4.3 ELECTRODES SETTING
4.4 AIR DAMPER ADJUSTMENT,
(see fig. 12)
The mobile air damper (1) operated by the jack (2) assures the com-
plete opening of the air intake.
The regulation of the air-rate is made by adjusting the fixed air
damper
(3) , after loosing the screws (4) . When the optimal regula-
tion is reached, screw tight the screws (4) to assure a free move-
ment of the mobile air damper (1) .
The settings, indicated in the table (page 6), refer to the burner with
its cover fitted and combustion chamber with depression zero.
These regulations are purely indicative.
Each installation however, has its own unpredictable working condi-
tions: actual nozzle output; positive or negative pressure in the com-
bustion-chamber, the need of excess air, etc.
All these conditions may require a different air-damper setting.
It is important to take account of the fact that the air output
of the fan differs according to whether the burner has its
cover fitted or not.
Therefore we recommended to proceed as
follows:
➤
Adjust the air damper as indicated in the table.
➤
Mount the cover.
➤
Check smoke number and CO
2
.
➤
Should it become necessary to modify the air output, remove the cover by loosening the screw, adjust
the air damper, remount the cover and finally recheck the smoke number.
4.5 PUMP PRESSURE:
The pump is set in factory according to the value indicated in the table B at page 6.
4.6 FUEL HEATING
In order to assure regular ignition and working also at low temperatures the burner has an oil pre-heater fit-
ted in combustion head. The pre-heater starts when thermostats close and it is indicated by the ignition of
an orange led placed on the control box.
When the required temperature for ignition is reached the thermostat fitted on the nozzle holder starts the
burner the orange led switches off, the green led switches on and the motor starts. The pre-heater remains
energised during working and cuts out when burner shuts-down.
Before removing or assembling the
nozzle, loosen the screw (
B , fig. 11)
and move the electrodes ahead.
ATTENTION
Fig. 11
2
–
2.5
mm
4 ±
0.3 mm
IMPORTANT:
THESE DIMENSIONS
MUST BE OBSERVED
D5230
B
Fig. 12
4
3
D6286
4
1
2