- 74 -
MAINTENANCE
GAS CONVERSION
9
GAS CONVERSION
9.1 Warnings
The commissioning of this boiler and
system must only be undertaken by a
Gas Safe 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.
9.2
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" on page 76.
•
Unscrew the connector
"C"
, remove the
fixing fork
"A"
and remove the pipe
"B"
(Fig. 9.1).
Fig. 9.1
A
B
C
• Carry out gas conversion
by correctly re
-
placing the
gas restrictor
(Fig. 9.2), refer
-
ring to the "Technical Data" section
(page
26
ADVANCE 25C
, page 30
AD-
VANCE 30C
and
page 34
ADVANCE
35C
)
.
Fig. 9.2
Gas restrictor
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/gas mixer. After any
service operation on the compo-
nents of the gas circuit check all
the connections for gas tight-
ness.
The factory boiler is set for functioning
with Natural gas (G20).
To set the functioning of the boiler with
LPG
(G31)
gas, carry out the following settings:
•
Enter in "programming mode" by sequen
-
tially pressing and holding in keys 16 - 17
- 18 (Fig. 9.3) for 10
seconds until the
letters
Pr
that alternate with code
01
are
displayed on the LCD display, indicating
that "parameter 01" (Fig. 9.4) has been
activated.
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