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8.4
Pump pressure
Kerosene
The pump leaves the factory set for kerosene working.
10 bar: maximum pressure for kerosene.
8.5
Air damper adjustment
The air damper is set in factory. This regulation is purely indica-
tive.
Each installation however, has its own unpredictable working
conditions: actual nozzle output; positive or negative pressure in
the combustion-chamber, the need of excess air, etc.
All these conditions may require a different air damper setting.
Only for code 3514503 - 3514104 - 20108353
The air setting is performed by mean of two independent damp-
ers (see fig. 10 and 11).
Main air damper
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.
Retighten the screw (2) and put back the secondary air
damper (B).
Secondary air damper
The purpose of this damper is to perform a fine-tuning of the inlet
air.
Tuning of this device is possible acting of the screw (3).
Start-up, calibration and operation of the burner
Gas oil increase pressure
12 bar: pressure suitable for light oil in most cases.
14 bar: maximum pressure light oil.
E9281
A
E9172
21
GB
2
B
3
B
1
Fig. 18
Fig. 19
2902843
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