Unical PELLEXIA 80, Инструкция по установке, использованию и техническому обслуживанию

Страница: 47 / 52

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Maintenance instructions
Routine maintenance is essential in the inter-
est of the safety, efficiency and durability of
the appliance.
All maintenance must be carried out by quali-
fied personnel.
Yearly maintenance of the appliance is manda-
tory in compliance with Laws in force.
Failure to perform Inspections and Maintenance can
entail material and personal damage.
Always turn off the power supply and stop the
supply of fuel before cleaning and maintenance.
In order to make the most of the boiler, you
should properly clean the combustion chamber,
smoke pipes and smoke chamber.
4
INSPECTIONS AND
MAINTENANCE
We therefore recommend stipulating an inspection or mainte-
nance contract.
Inspections help to determine the actual status of the appliance
and to compare it with the nominal status. This is done through
measuring, controls and observation.
Maintenance is required to eliminate any differences between
the actual status and the nominal status. This is normally done
by cleaning, setting and replacing individual components subject
to wear.
Maintenance intervals and their extent are determined by a
specialist based on the status of the appliance ascertained
through inspection.
Inspection and maintenance jobs must be performed in the order
shown on page 51.
Inspection and maintenance instructions
To assure long-term functioning of your appliance and to avoid
altering its approved status, only original Unical spare parts
must be used.
Before proceeding with maintenance, always perform the fol-
lowing operations:
• Disconnect the electric mains switch.
• Isolate the appliance from the electric mains by means of
an isolated device with a contact opening of at least 3 mm
(e.g. safety devices or power switches) and make sure that
it cannot be re-connected accidentally.
• Close the shut-off valves on the heating flow and return pipes,
as well as the cold water inlet valve.
After having completed all maintenance work, always perform
the following operations:
• Open the heating flow and return pipes, as well as the cold
water inlet valve.
• If necessary, restore the heating system pressure.
• Reconnect the appliance to the electric mains and engage
the switch.
• Make sure that the appliance is watertight.
• Vent the heating system and restore pressure if necessary.