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8
GAS CONVERSION
8.1
Warnings
The commissioning of this boiler and
system must only be undertaken by a
Gas Safety Registered Engineer, quali-
fied to work on Liquefied Petroleum Gas
(LPG) in accordance with the require-
ments of the Gas Safe Installation and
Use Regulations.
Components used to adapt it to the type
of gas available must be genuine parts
only.
Factory setting = Natural gas.
8.2
Operations and gas setting
Check that the gas cock mount-
ed on the gas piping to the boil-
er is closed and that the appli-
ance is not powered.
• Remove the body's front panel and turn
the control panel as shown in section
"MAINTENANCE" to page 74.
• Unscrew the connector C, remove the
fixing fork A and remove the pipe B (Fig.
8.1).
Fig. 8.1
- 72 -
GAS CONVERSION
• Carry out gas conversion by correctly re-
Fig. 8.2
A
The factory boiler is set for functioning
B
with Natural gas (G20).
C
To set the functioning of the boiler with LPG
(G31) gas, carry out the following settings:
• Enter in "programming mode" by pressing
placing the gas restrictor (Fig. 8.2), refer-
ring to the "Technical Data" section page
26 (Advance Plus 25C), page 29 (Ad-
vance Plus 30C) and page 32 (Advance
Plus 35C).
Attention, to reassemble repeat
the operations carried out in re-
verse order. Be careful not to
damage the OR gasket of the
gas pipe when inserting the pipe
in the air box (air/gas mixer). Af-
ter any service operation on the
components of the gas circuit
check all the connections for
gas tightness.
keys 14 - 15 - 16 (Fig. 8.3) for 10 seconds
at the same time until the letters Pr that al-
ternate with code 01 are displayed on the
LCD display, indicating that "parameter
Gas restrictor
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