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8
GAS CONVERSION
8.1
Warnings
The commissioning of this boiler and
system must only be undertaken by a
professionally qualified person in ac-
cordance with the requirements of the
Gas Safe Installation and Use Regula-
tions and be approved by Gas Safe.
Components used to adapt it to the type
of gas available must be genuine parts
only.
8.2
Procedures
Check that the gas cock fitted
under the boiler is turned off
and the appliance is switched
off at the mains isolating spur.
12
Fig. 8.1
• Remove the front panel of the case (see
the section General access and emptying
hydraulic circuits in the service manual).
• Take off the lid of the sealed chamber.
• Take the front panel of the combustion
chamber off and remove the burner (30on
page 17). See section Ignition and detec-
tion electrodes in the service manual for
detailed instructions.
• Carry out the conversion for the type of gas,
replacing the burner injectors correctly.
- 48 -
GAS CONVERSION
Closed position
• Re-assemble the burner, the front panel of
the combustion chamber.
• Switch on the appliance at the mains iso-
lating spur.
• Turn the boiler OFF positioning the func-
tion selector 7 as indicated in Fig. 8.2.
9
Fig. 8.2
• Disconnect the electrical connectors of the
C.h. temperature probe NTC 20 in Fig. 8.3
20
Fig. 8.3
• Keep pressed the reset button 6 for about
10 seconds until the lock-out signal lamp
5 blinks.
• Connect the electrical connectors of the
C.h. temperature probe NTC 20 in Fig. 8.3.
• Press the reset button 6 repeatedly (4
times) until the lamps 9 give the indication
as in Fig. 8.4 (gas type mode).
Where:
Fig. 8.4
7
Lamp OFF
Lamp ON
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