Riello 3768000, Инструкции по установке, использованию и обслуживанию

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10
2902768
GB
O
SECONDARY AIR DAMPER (B)
The purpose of this damper is to perform a fine-tuning of the inlet air. Tuning of this device is possible acting
of the screw (3).
4.4 COMBUSTION CHECK
It is advisable to set the burner according to the type of gas used and following the indications of the table:
IONIZATION CURRENT, ( see fig. 7)
The minimum current necessary for the control
box operation is 5 µA.
The burner normally supplies a higher current
value, so that no check is needed.
To measure the ionization current, open the con-
nector
CN1 (see electrical scheme page 8) & in-
sert your microammeter.
EN 676
AIR EXCESS:
max. output
 
1.2 – min. output
 
1.3
GAS
Theoretical max. CO
2
0% O
2
Setting CO
2
%
CO
mg/kWh
NO
x
mg/kWh

= 1.2

= 1.3
G 20 11.7 9.7 9.0

100

170
G 25 11.5 9.5 8.8

100

170
G 30 14.0 11.6 10.7

100

230
G 31 13.7 11.4 10.5

100

230
Secondary air damper (B) Main air damper assembly (A)
Fig. 6
B
1
2
A
B
3
D4202
D4202
D5006
1
Fig. 7
Probe
Connector
Terminal block
of control box