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8
GAS CONVERSION
8.1 Warnings
The operations to adapt the boiler
to the type of gas available must
be carried out by an authorised
service centre.
The components used for adapting to the type
of gas available must only be original spare
parts.
For instructions regarding calibrating the boil-
er gas valve, refer to section "CHECKING
THE GAS SETTING" on page 50.
8.2 Gas operations and setting
Check that the gas cock mounted
on the gas piping to the boiler is
closed and that the unit is not
powered.
• Remove the front and side panels as shown
in section "Maintenance" on page 57.
• Remove the movable wall from the sealed
chamber.
• Remove the front panel from the combus-
tion chamber and the burner in Figure 8.1.
A
Figure 8.1
• Convert the type of gas by correctly replac-
ing the burner nozzles and gaskets.
• Reassemble the burner Figure 8.1, the front
combustion chamber panel and the mov-
able wall of the sealed chamber.
GAS CONVERSION
A
• Restore electric power to the boiler.
The boiler is factory set to operate with
natural gas (G20).
To set boiler operation to LPG gas (G31), car-
ry out the following settings:
• Enter "programming mode" by carrying out
the procedures indicated in "Accessing the
"programming mode"" on page 37.
17
11
12
Figure 8.2
• The code A01 appears on the display, in-
dicating entry into "parameter A01" (Figure
8.3).
Figure 8.3
• By using buttons 14 or 15 (Figure 8.2) it is
possible to modify the value of parameter
A01 (Figure 8.4).
00 = Methane gas (G20)
01 = Propane gas - LPG (G31)
Figure 8.4
16
15
14
RESET
bar
RESET
bar
- 55 -
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