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R1K 24 /B - RAD - ING - Manuale - 1507.1 - R2 G
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2. MAINTENANCE
SUPPOR
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2.2.18. GAS TYPE TRANSFORMATION
ATTENTION
Make sure that the gas adduction tube is
suitable for the new type of fuel with which the boiler
is supplied.
FOR TRANSFORMATION INTO METHANE GAS
PROCEED AS FOLLOWS:
› loosen the two screws ‘1’ (fig.1) from the
fastening bush, and remove the air suction tube;
› unscrew the tube coupling that connects the
gas valve to venturi;
› unscrew the three fastening screws ‘2’ (fig.1) of
the venturi ‘V’ (fig.1) using a 10 key, as shown in
figure 2;
› replace the venturi with the one suitable for the
type of supply gas (cod. 30-00124 for methane),
and remount the components following the
demounting operations in reverse making sure
that gasket ‘G’ is re-assembled as shown in fig.1;
› set the boiler to operate with the new type of
gas, changing the value of the parameter P02
‘GAS TYPE SELECTION’ from the control panel
(see chapters ‘DIGITECH CS PARAMETERS
TABLE’ and ‘PARAMETERS ACCESSING AND
PROGRAMMING’);
› adjust the CO2 combustion value as indicated in
chapter ‘CO2 VALUE CHECK AND CALIBRATION’.
1
2
2
V
2
G
fig. 1
fig. 2
