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Start-up, calibration and operation of the burner
6.1 Notes on safety for the first start-up
6.2 Combustion adjustment
In conformity with EN 267, the application of the burner on the
boiler, adjustment and testing must be carried out observing the
instruction manual of the boiler, including verification of the CO
and CO2 concentration in the flue gases, their temperatures and
the average temperature of the water in the boiler.
To suit the required appliance output, choose the proper nozzle
and adjust the pump pressure and the air damper opening in ac-
cordance with the following data.
The values in Tab. F are refer to 12.5% CO
2
, at sea level and with
ambient temperature and light oil at 20 ° C.
The values in Tab. F refer to 12.50 of CO
2
, at sea level and with
a temperature of the surroundings and the light oil of 20 °C.
Tab. F
6.3 Recommended nozzles
The burner complies with the emission requirements of the EN
267 standard.
In order to guarantee that emissions do not vary, recommended
and/or alternative nozzles specified by manufacturer in the In-
struction and warning booklet should be used.
To set the delivery range within which the nozzle must work, noz-
zle return line fuel pressure must be adjusted.
6.4 Pump pressure
The pump is calibrated in the factory as shown in Tab. F.
6 Start-up, calibration and operation of the burner
The first start-up of the burner must be carried out
by qualified personnel, as indicated in this manual
and in compliance with the standards and regula-
tions of the laws in force.
Check the correct working of the adjustment, com-
mand and safety devices.
The combustion air is sucked from outside, there-
fore, there can be sensitive temperature varia-
tions that can influence the percentage value of
the CO
2
. It is advisable to adjust the CO
2
accord-
ing to the diagram.
For example: with an external air temperature of
10°C, adjust the CO
2
to 12.5% (± 0.2%).
Model
Ugello
Pump
pressure
Burner output Burner output
Damper
adjustment
GHP Angle Type bar kg/h ± 4% kW Set-point
RDB2.2R BG1 BLU 21 0.50 60° DANFOSS H 11.5 1.8 21 3.75 - D
RDB2.2R BG1 BLU 26 0.55 60° DANFOSS H 13 2.2 26 5.5 - D
RDB2.2R BG3 BLU 36 0.75 60° DANFOSS H 14 3.0 36 4
It is advisable to replace nozzles every year dur-
ing regular maintenance operations.
The use of nozzles other than those specified by
manufacturer and inadequate regular mainte-
nance may result into emission limits non-con-
forming to the values set forth by the regulations
in force, and in extremely serious cases, into po-
tential hazards to people and objects.
The manufacturing company shall not be liable for
any such damage arising from non-observance of
the requirements contained in this manual.
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