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6) In the event that the domestic system is
equipped with a manual or automatic top-up
system, the appliance can be loaded through
the flow and return pipes. To achieve this:
• Open the relief valve (C) (Fig. 34) and open the
bypass tap in the anti-condensation valve (F), to
allow the water to flow until the boiler is com-
pletely full (Fig. 35). Close the relief valve and
wait for the minimum operating pressure to be
reached (1 bar), which can be checked on the
pressure gauge (G) (Fig. 37).
• Close the bypass tap present in the anti con-
densation valve (Fig. 36).
G
• Close the filling tap (E).
• Check that all the fittings are perfectly sealed.
7.5.2 System emptying:
1) Connect a rubber hose to the system drain (H)
and open it, then open the relief valve to allow
the water to flow until the appliance is com-
pletely empty. Close the relief valve and the
tap (Fig. 38).
004779216 - 18/09/2024
ITALIANO
ENGLISH
Fig. 36
Fig. 37
FRANÇAIS
7.6 Electrical connection
Simply connect the appliance to the electrical
system using the supplied plug (Fig. 39).
The electrical connection (plug) must be easily
accessible after appliance installation as well.
If the power supply cable is damaged
it must be replaced by the technical
assistance service or a qualified techni-
cian in order to prevent any risk.
The system must be equipped with
an earth connection and a differential
switch in compliance with the laws in
force.
The flue gas evacuation duct must
be equipped with its own earth
connection.
DEUTSCH
ESPAÑOL
H
Fig. 38
Fig. 39
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