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I-48
Z-038791_EN • Rev A
m
aIntenance
Safety Instructions for Maintenance
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The maintenance of the ap-
pliance and its components
must be carried out by a
qualifi ed professional.
î
Defective parts and components may
only be replaced by genuine factory
parts or parts approved by the manu-
facturer.
î
Replace any gaskets or seals present
on the removed components before
reinstallation, unless otherwise speci-
fi ed in the procedures.
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To ensure the performance, durability
and reliability of the appliance, it is rec-
ommended that the end-user perform
the periodic checks mentioned in the
Safety section for the user, at the be-
ginning of this manual.
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The minimum pressure of the heating
circuit is 1.2 bar when cold, the normal
pressure is 1.2 to 6 bar in operation.
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If the water circuit needs to be topped
up, allow the appliance to cool down
and only add small quantities of water
at a time. Adding a large quantity of
cold water in a hot appliance can dam-
age the appliance permanently.
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Inspection and maintenance tasks
must be carried out by a qualifi ed and
certifi ed professional, at least once a
year.
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Water fl owing out of the drain valve
can be extremely hot. Use extreme
caution when draining a hot appliance.
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Once the inspection and maintenance
tasks are complete, ensure that all re-
moved components are reinstalled
and all connections are tight and se-
cured.
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Before performing any
maintenance operation,
shut down the appliance
using the appliance on/off
switch and isolate the elec-
trical supply of the appli-
ance through the external
power-cutting device (fuse,
circuit-breaker, etc.), unless
power is required for the
procedure (it will then be in-
dicated in the procedure).
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Do not touch the appliance with any
wet body parts when it is supplied
with electrical power.
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Be careful ! Even when the appliance
on/off switch is set to OFF, the high
voltage terminals are still supplied with
electrical power.
The inspection and maintenance
tasks are detailed in a table in this
section. Make sure to perform all
the recommended tasks and to
fi ll in the log sheets available at
the end of the manual with all the
required information.
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