Start-Up, Calibration And Operation Of The Burner; Notes On Safety For The First Start-Up; Combustion Adjustment; Nozzles Installation - Riello RDB1 VCOM 26 Installation, Use And Maintenance Instructions

8

Start-up, calibration and operation of the burner

8.1

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
8.2

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.
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
2
WARNING
ing to the diagram.
For example: with an combustion air temperature
of 20°C, adjust the CO
8.3

Nozzles installation

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 the 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
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.
8.3.1

Nozzles recommended

 Delavan type W;
 Steinen type Q - S;
 Danfoss type H - S.
Angle 60°: in most cases.
Angle 80°: in case of flame detachment, during ignitions at low
temperatures.
2902843
Start-up, calibration and operation of the burner
accord-
2
to 12.5% (± 0.2%).
2
Check the correct working of the adjustment, com-
mand and safety devices.
WARNING
14.0
13.5
13.0
12.5
12.0
11.5
11.0
10.5
10.0
0
-10 -5
Combustion air temperature (°C)
20 GB
15 25 30
5 10 20
20159270
40
35 45
Fig. 17