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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 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.
7.6
Electrodes setting
The position of the electrodes cannot be regulat-
ed. In case of failure, check that the measure-
ments as shown on the figure are respected.
WARNING
Before removing or assembling the nozzle, loosen the screw (A,
Fig. 17) and move the electrodes ahead.
7.7
Burner start-up cycle
Normal
Thermostat
Motor
Ignition transformer
Valve
Flame
Lock-out lamp
Lock out is indicated by a lamp on the control box (3, Fig. 1 to
page 7).
2903382
Start-up, calibration and operation of the burner
~ 12s
4 ±
0.3 mm
D5230
Lock-out due to failure to light
~ 12s
20
GB
A
2 - 2.5
~ 5s
mm
Fig. 17
D5229
Fig. 18
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