Start-Up, Calibration And Operation Of The Burner; Notes On Safety For The First Start-Up; Combustion Adjustment; Recommended Nozzles - Riello RDB2.2R BG Instrucciones De Instalación, Montaje Y Funcionamiento

6

Start-up, calibration and operation of the burner

6.1

Notes on safety for the first start-up

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.
WARNING
6.2

Combustion adjustment

In conformity with Efficiency Directive 92/42/EEC, the application
of the burner on the boiler, adjustment and testing must be car-
ried 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.
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 . It is advisable to adjust the CO
WARNING
2
ing to the diagram.
For example: with an external air temperature of
10°C, adjust the CO
BURNER
Code Type
20091750 L002BG1
20091751 L003BG2
20091752 L004BG3
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.
It is advisable to replace nozzles every year dur-
ing regular maintenance operations.
WARNING
6.4

Pump pressure

14 bar:
The pump is calibrated in the factory as shown in Tab. D.
Start-up, calibration and operation of the burner
accord-
2
to 12.5% (± 0.2%).
2
Nozzle
GHP Angle
0.4 80°
0.6 80°
0.75 80°
Check the correct working of the adjustment, com-
mand and safety devices.
WARNING
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 refer to 11.6% of CO
oil and ambient temperature at 10°C.
The values in Tab. D are obtained on a THERMITAL boiler (ac-
cording to EN267). They refer to 12.5 % CO
with an ambient and light oil temperature of 20 °C.
Pump
pressure
Type bar
Fluidics
9
HF
Fluidics
12
HF
Fluidics
12
HF
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.
CAUTION
The manufacturing company shall not be liable for
any such damage arising from non-observance of
the requirements contained in this manual.
To set the delivery range within which the nozzle must work, noz-
zle return line fuel pressure must be adjusted.
13 GB
at sea level, and with the light
2
, at sea level and
2
Burner Burner
output output
kg/h ± 4% kW
1.26 15
2 24
2.7 32
Damper
adjustment
Set-point
2.9-B
2
5.75
Tab. D
20094184