– tighten the counter-nut (10) and the swivel joint (9) and po-
sition the gasket
– refit the electrode (8) putting its end
IN THE MIDDLE
of the
burner element (*)
– check that the gasket and the insulation of the front panel
(6) of the combustion chamber and the gasket (13) of the
front panel (4)of the sealed chamber are all integral. If they
are not, replace them
– refit the panels (6) and (4) securing them with fastening
screws
m
CAUTION (*)
The position of the electrode is essential for the correct
detection of current ionization.
13
Fig. 41
– apply the label indicating the new gas configuration on the
technical plate (14) on the inside of the front panel
– carry out the "Automatic calibration procedure" and then
refit the front panel (2) securing it with the two screws (1).
2
14
Fig. 42
3.9 Automatic calibration procedure
This procedure MUST BE CARRIED OUT after replacing:
– the nozzles for gas conversion
– the gas valve following a fault
– the electronic board following a fault
and is necessary so that the new components can be identified
and can communicate with those already fitted on the boiler.
m
CAUTION
Considering that:
– the front panel has been removed, the control
panel has been brought forward and down and
that the points (6) and (7) of the gas valve have
been connected to the pressure gauges
– the main system switch must be set to "ON"
– the gas supply must be open
– there must be no current requests for heat ("Sum-
mer" mode
l
with hot water valve closed or
"Winter"
n
with air thermostats open)
–
the adjustments described below must be carried out
in sequence.
6
7
Fig. 43
Procedure valid for GAS CONVERSION
– go into the parameter section by pressing the buttons
r
and
t
(for approximately 5 seconds) at the same time until
“PAR 01”
(parameter number) and the value set (0-4) ap-
pears on the display
NB:
holding the buttons
r
or
t
increases the speed of the
scrolling movement. Pressing the button
r
allows the user
to scroll through the previous parameters.
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