Combustion Adjustment; Ionisation Current - Riello 40 Serie Instrucciones Para La Instalación, Uso Y Mantenimiento

COMBUSTION ADJUSTMENT

In conformity with Efficiency Directive 92/42/EC, the application of the burner on the boiler, adjust-
ment and testing must be carried out by observing the instruction manual of the boiler, including
verification of the CO and CO
age 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 of the table:
EN 676
Theoretical max. CO
GAS
0 % O
G 20 11.7
G 25 11.5
G 30 14.0
G 31 13.7
PROBE - ELECTRODE POSITIONING
IMPORTANT
Do not turn the starting electrode but leave it as shown in the drawing; if the starting electrode is put
near the ionisation probe, the control box amplifier might be damaged .
Put the ceramic
near the diffuser disc
Probe
D5157
Transformation for
Families of GAS 3 (LPG)

IONISATION CURRENT

The minimum current necessary for the con-
trol box operation is 5 µA.
The burner normally supplies a higher cur-
rent value, so that no check is needed.
Should you want to measure the ionisation
current anyway, you must open the connec-
tor (CN1) (see wiring diagram page 5) inserted in the red wire and insert a microammeter.
3302
concentration in the flue gases, their temperatures and the aver-
2
AIR EXCESS: max. power   1.2 – min. power.   1.3
Setting CO
2
 = 1.2
2
9.7
9.5
11.6
11.4
Probe
Diffuser
introduce
the reduction
%
2
 = 1.3
9.0
8.8
10.7
10.5
Ignition electrode
1.7
1.3
WARNING 2.5 –3.5mm
insert the stamped
+
diffuser 1.3
D4625
Socket
of control-box
7
GB
CO
mg/kWh
mg/kWh
 100
 100
 100
 100
Electrode
apply the adhesive
+
label supplied
Connector
_
+
NO
x
 170
 170
 230
 230
Probe