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7.4
Pump pressure
The pump leaves the factory set for kerosene working.
10 bar: maximum pressure for kerosene.
7.5
Air damper adjustment
The air damper is set in factory.
This regulation is purely indicative. Each installation however,
has its own unpredictable working conditions: actual nozzle out-
put; positive or negative pressure in the combustion-chamber,
the need of excess air, etc.
All these conditions may require a different air damper setting.
The air setting is performed by mean of two inde-
pendent dampers (Fig. 16 and Fig. 17).
WARNING
7.5.1
Main air damper
The main air damper A)(Fig. 16) can be set in two positions for
12/15 and 18 kW;
To set the positions of the damper, proceed as follows:
remove the secondary air damper B) loosing the screws 1);
loosen the screw 2) and rotate the main air damper A) to the
required position;
re-tighten the screw 2) and put back the secondary air
damper B).
7.5.2
Secondary air damper
The purpose of this damper B)(Fig. 17) is to perform a fine-tuning
of the inlet air.
Tuning of this device is possible acting of the screw 3)(Fig. 17).
7.6
Electrodes setting
The position of the electrodes cannot be regulat-
ed.
In case of failure, check that the measurements as
WARNING
shown on Fig. 18 are respected.
Before removing or assembling the nozzle, loosen the screw
A)(Fig. 18) and move the electrodes ahead.
Start-up, calibration and operation of the burner
E9172
4 ±
0.3 mm
D5230
19
GB
20075077
B
3
A
2 - 2.5
Fig. 16
Fig. 17
mm
Fig. 18
20074517
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