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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
).
Fig. 36
G
Fig. 37
• 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
).
H
Fig. 38
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.
Fig. 39
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.
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