Installation manual

50
Remove the screw (25) and the
retaining plate (26) from the gas valve
connector.
Remove the gas valve connector (28).
Remove the fan retaining screws (34).
Remove the gas valve (35).
Fit the new gas valve and the new
gasket in the reverse order
.
When re-fitting the gas valve take care
as it can be fitted more than one way.
After re-fitting check the combustion
CO2 and adjust if necessary (see
chapter «Gas conversion»).
15.2.5
Fan
Remove the mixing arm (13).
Remove the fan retaining screws (34).
Relieve the fan connector (12).
Relieve the fan (33).
Fit the new fan and the new gasket in
the reverse order
.
15.2.6 Ignition module
Remove the ignition and control
electrode connector (8) from the ignition
module (22).
Remove the ignition module harness
connector (10).
Remove the 2 ignition module retaining
screws (1
1).
Fit the new ignition module in the
reverse order
.
15.2.7 Ignition and controle electrode
Remove the connector from the ignition
and control electrode connector (8).
Remove the 2 ignition and controle
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electrode retaining screws (1
1).
Fit the new ignition and controle
electrode and the new gasket in the
reverse order
.
15.2.8 Viewing window
Remove the circlip (4).
Remove the gaskets (3) (18), the
viewing window (19) and the spring leaf
(18).
Fit the new viewing window and the
new gaskets in the reverse order
.
15.3 DHW storage vessel / Expansion
vessel
12
4
2
1
3
5
6
7
8
9
10
11
14
13
Legend
1 Hanging bracket retaining screws
2 DHW storage vessel retaining screws
3 Heating expansion vessel retaining
screws
4 Tie-rod retaining screws
5 Heating expansion vessel
6 Heating expansion vessel coupling
7 DHW storage vessel retaining screws
8 DHW expansion vessel coupling
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