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Start-up, calibration and operation of the burner
6.5
Air damper adjustment
The air damper is factory set to the values indicated in Tab. F on
page 15.
These adjustments are indicative. 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.
1
The damper 1)(Fig. 18) is used to precisely adjust the input air
flow rate.
To modify the setting use the screw 2) as shown in Fig. 18.
In the 15 - 21 kW and 15 - 26 kW models there is another air
damper calibrated in the factory to notch C (Fig. 18).
2
20114007
Fig. 18
20139038
18
GB
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