72
Fit a combustion products probe in one of the points provided fro this purpose
21.
on the external fumes equipment.
Switch the appliance on and wait for it to stabilise (3 minutes).
22.
With reference to Table 6.1 Gas type identification values
23.
→
67 and the fumes
analyser reading, check that the CO
2
content percentage of the combustion pro-
ducts is within ±0,2 of the characteristic value for the gas being used.
If the value is in the correct range, go to step "27"; otherwise proceed as
24.
follows:
remove the access cap (L) on the flow regulator and use a flathead screwdriver
25.
through the hole (G) to adjust the flow regulator so that the value falls in the
correct CO
2
content range.
Reinstall the cap (L).
26.
1 full turn of the flow regulator screw reduces (clockwise) or increases (counterclockwi-
se) the percentage of CO
2
by approximately 0.1%.
Enter menu 2 and execute action "23": timed forcing of the appliance to mini-
27.
mum power (8.0 kW). The procedure to run the actions of menu 2 is specified
in Paragraph 6�1 PROCEDURE FOR INITIAL ACTIVATION
→
63, at the end of
"Step 2".
With reference to Table 6.1 Gas type identification values
28.
→
67 and the fumes
analyser reading, check that the difference between the CO
2
percentage obser-
ved in step “15” and the current reading corresponds to the
delta CO
2
characteri-
stic of the gas being used.
Example: having set, in step "23", a CO
2
content of 9.5% for G20 gas, at step "28" the
reading should be 9.0% (=9.5%-0.5%).
If the difference satisfies the
29.
delta CO
2
requirement, go to step "34", otherwise
proceed as follows:
Open the access (F) to the OFFSET regulator, which is part of the gas valve, by
30.
removing the access cap (M) on the internal panel (E).
Open the internal panel (E) and, using a Torx TX40 wrench (B) remove the cap (A)
31.
on the OFFSET regulator (C). Close the internal panel (E).
Through hole (F) on panel (E), use a Torx TX40 wrench (B) on the OFFSET regu-
32.
lator to achieve a value of
CO
2
content whose value relative to the value red at
step "23" satisfies the requirement of the Table regarding the characteristic
del-
ta CO
2
for the gas being used (see example above and observe the following
instructions):
1/8 turn of the OFFSET regulator screw reduces (counterclockwise) or increases
(clockwise) the CO
2
content by approximately 0.1%.
Once the correct
33.
CO
2
content has been achieved, open the internal panel (E) and
restore the cap (A), close the panel (E) and reinstall the cap (M).
Enter menu 2 and execute action "24": timed forcing of the appliance to maxi-
34.
mum power (34.9 kW).
Check that the CO
35.
2
content percentage of the combustion products is within
±0.2 of the characteristic value for the gas being used. If this condition is not met,
repeat the procedure from step "25", otherwise proceed with the next step.
Enter menu 2 and execute action "25": forced stop to cancel the preceding for-
36.
ced operation and return to the initial operational configuration.
After 30 minutes of operation the appliance automatically cancels the preceding for-
ced power mode. To anticipate this timing, select and execute action "25" in menu 2.
