Air Damper Setting; Probe-Electrode Positioning; Combustion Adjustment - Riello BS2F Installation, Use And Maintenance Instructions

6.4

Air damper setting

Do not carry out the first ignition with the air damper lower than
set point 1.
The air damper leaves the factory set at set point 3.5.
6.5

Probe-electrode positioning

Ensure that the plate 3)(Fig. 14) is always inserted
in the flattening of the electrode 1).
Lean the probe insulator 4) against the cup 2).
WARNING
Keep to given distances!
WARNING
6.6

Combustion adjustment

In conformity with Efficiency Directive 92/42/EC the application of
the burner on the boiler, adjustment and testing must be carried
out observing the instruction manual of the boiler, including veri-
fication of the CO and CO2 concentration in the flue gases, their
EN 676
GAS
G 20
G 25
G 30
G 31
Start-up, calibration and operation of the burner
Theoretical
max CO2
λ = 1.2
0 % O2
11.7 9.7
11.5 9.5
14.0 11.6
13.7 11.4
To vary the setting proceed as follows::
➤ Loosen the nut 9)(Fig. 12 on page 15) and the screws 8).
➤ Once you have done, tighten the nut 9).
3,5 ± 0,3
temperatures and the average temperature of the water in the
boiler.
It is advisable to set the burner according to the type of gas used
and following the indications in Tab. C.
Air excess: max. output. λ ≤ 1.2 – min. output λ ≤ 1.3
Setting CO2 %
λ = 1.3
9.0
8.8
10.7
10.5
16 GB
30 ± 0,3
1
3 4
CO
mg/kWh
≤ 100
≤ 100
≤ 100
≤ 100
2
D6088
Fig. 14
NOx
mg/kWh
≤ 170
≤ 170
≤ 230
≤ 230
Tab. C
20071805