7
INITIAL ACTIVATION AND MAINTENANCE
56
19. Restore the appliance by screwing the gas intake seal screw back in.
20. Close the appliance's internal panel (E).
21. Fit a combustion products probe in one of the points provided fro this purpose on the external fumes equipment.
22. Switch the appliance on and wait for it to stabilise (3 minutes).
23. With reference to Table 7.1
→
53 and the fumes analyser reading, check that the CO
2
content percentage of the combustion
products is within ±0,2 of the characteristic value for the gas being used.
24. If the value is in the correct range, go to step "27"; otherwise proceed as follows:
25. remove the access cap (L) on the flow regulator and use a flathead screwdriver through the hole (G) to adjust the flow regulator
so that the value falls in the correct CO
2
content range.
26. Reinstall the cap (L).
1 full turn of the flow regulator screw reduces (clockwise) or increases (counterclockwise) the percentage of CO
2
by approxi-
mately 0.1%.
27. Enter menu 2 of the electronic board and execute action "23": timed forcing of the appliance to minimum power (8.0 kW). The
procedure to run the actions of menu 2 is specified in the Paragraph 7�1
→
50, at the end of "Step 2".
28. With reference to Table 7.1
→
53 and the fumes analyser reading, check that the difference between the CO
2
percentage ob-
served in step “15” and the current reading corresponds to the
delta CO
2
characteristic 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%).
29. If the difference satisfies the
delta CO
2
requirement, go to step "34", otherwise proceed as follows:
30. Open the access (F) to the OFFSET regulator, which is part of the gas valve, by removing the access cap (M) on the internal
panel (E).
31. Open the internal panel (E) and, using a Torx TX40 wrench (B) remove the cap (A) on the OFFSET regulator (C). Close the internal
panel (E).
32. Through hole (F) on panel (E), use a Torx TX40 wrench (B) on the OFFSET regulator 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
delta 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 approxi-
mately 0.1%.
33. Once the correct
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).
34. Enter menu 2 and execute action "24": timed forcing of the appliance to maximum power (34.9 kW).
35. Check that the CO
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.
36. Enter menu 2 and execute action "25": forced stop to cancel the preceding forced operation and return to the initial opera-
tional configuration.
After 30 minutes of operation the appliance automatically cancels the preceding forced power mode. To anticipate this tim-
ing, select and execute action "25" in menu 2.
37. Switch off and completely restore the appliance.
