Riello BS1F Instrucciones De Instalación, Uso Y Mantenimiento página 37

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.
ATTENTION
6.2 Adjustments prior to ignition
 Check the adjustment of the head as shown in page 18.
 Check the adjustment of the air damper.
 Slowly open the manual valves situated upstream from the
gas train.
 Adjust the air pressure switch to start of the scale.
 Purge the air from the gas line.
We recommend using a plastic tube routed outside the build-
ing and to purge air until gas is smelt.
Before starting up the burner, it is good practice to
adjust the gas train so that ignition takes place in
conditions of maximum safety, i.e. with gas deliv-
ery at the minimum.
CAUTION
6.2.1 Air damper setting
Do not carry out the first ignition with the air damp-
er lower than set point 1.
ATTENTION
The air damper 10)(Fig. 25) leaves the factory set to 1.
To vary the setting proceed as follows:
 loosen the nut 9) and act on the screw 8);
 when the operation is completed, tighten nut 9).
6.3 Combustion adjustment
In conformity with Efficiency Directive EN 676, the application of
the burner on the boiler, the adjustment and testing must be car-
ried out in compliance with the instruction manual of the boiler, in-
cluding control of the CO and CO
gases, their temperature and the average temperature of the wa-
ter in the boiler.
EN 676
Theoretical max CO2
GAS
G 20
G 25
G 30
G 31
Start-up, calibration and operation of the burner
concentration in the flue
2
0 % O2
 = 1.2
11.7 9.7
11.5 9.5
14.0 11.6
13.7 11.4
Check the correct working of the adjustment, com-
mand and safety devices.
ATTENTION
S9485
It is advisable to set the burner according to the type of gas used
and following the indications in Tab. T.
Excess air: max. output   1.2 – min. output   1.3
Setting CO2 %
 = 1.3
9.0
8.8
10.7
10.5
35
GB
-
+
CO NOx
mg/kWh mg/kWh
 100  170
 100  170
 100  230
 100  230
8
9
10
Fig. 25
Tab. T
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