Vaillant ecoMAX 665, Руководство по установке и обслуживанию

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Installation and maintenance manual ecoMAX 665 / 0020020159_03
7 Inspection and maintenance
7.1 Inspection and maintenance intervals
Appropriate, regular inspections and maintenance and
the exclusive use of original spare parts are the decisive
factors in determining whether your Vaillant ecoMAX
665 will run problem-free and have a long service life.
d Danger!
Inspections/Maintenance work not carried out can
result in material damage and injury to persons.
We therefore recommend the conclusion of an inspec-
tion or maintenance contract. The inspection is intended
to determine the actual condition of the respective de-
vice and compare it with the nominal condition. This is
done by measuring, checking, observing.
Maintenance is required in order to eliminate any devia-
tions of the actual condition from the specified condi-
tion. This is usually done by cleaning, setting and, if ne-
cessary, replacing individual components subject to wear.
With regard to the Vaillant ecoMAX 665, this means it is
usually sufficient to conduct an inspection once a year.
Inspections can be performed quickly and economically
without dismounting any components thanks to the data
query in the DIA system, easy optical inspection and an
air ratio measurement.
Experience indicates that under normal circumstances it
is not necessary to clean the burner and heat exchang-
ers yearly. These maintenance intervals and their extent
are determined by a specialist, depending on the ascer-
tained condition of the appliance during the inspection.
All inspection and maintenance work should be per-
formed in the order specified in table 7.1.
a Caution!
The front cover should only be removed
• for initial installation access
• for servicing
• for testing
For continuous and safe operation the front
cover must be fitted together with a correctly
fitted and sealed flue system.
7.2 Inspection and maintenance instructions
Only original Vaillant spare parts may be used for in-
spections, maintenance and repair work to ensure the
perfect long-term working order of all functions of the
Vaillant appliance.
Please contact Vaillant Service Solutions 0870 850 3072
for further details.
h Note!
If inspection and maintenance work is neces-
sary with the mains switch on, this is indicated
in the description of the maintenance work.
d Danger!
The supply terminals of the appliance are under
voltage even if the appliance on/off switch is off.
Always perform the following steps prior to mainte-
nance work:
• Switch off the appliance on/off switch.
• Disconnect the appliance from the mains supply by
de-energising the appliance by means of a separator
with a contact opening of at least 3mm (e.g. fuses or
circuit breakers).
• Close the gas shut-off valve.
• Close the heating flow and return and the cold water
inlet valve.
• Take the front casing off the appliance.
Always perform the following steps after performing
any maintenance work:
• Open the heating flow and return and the cold water
inlet valve.
• Refill the appliance, if necessary, on the hot water
side up to a pressure of between 1.0 and 2.0 bar and
bleed the heating system (see chapter 5.1).
• Open the appliance gas isolation valve.
• Reconnect the device to the mains supply and switch
on the mains switch.
• Check the appliance for gas and water leaks.
• If necessary, refill and vent the heating system.
• Put on the appliance‘s front casing.
h Note!
The boiler is fitted with a combustion analysis
test point. A suitable combustion analyser can
be connected to this point to establish the
combustion performance of the boiler. Check-
ing/adjustment of this value is required in the
following instances; replacement of gas valve,
or if incorrect combustion is suspected (see
section 5.2.3)
Inspection and maintenance 7