Vaillant ecoMAX 665 Installation And Maintenance Manual - page 26
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Installation and maintenance manual ecoMAX 665
7 Inspection and maintenance
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.
Danger!
Inspections/Maintenance work not carried out
can result in material damage and injury to per-
sons.
We therefore recommend the conclusion of an inspec-
tion or maintenance contract.
The inspection is intended to determine the actual con-
dition of the respective device 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.
Caution!
The appliance may only be used
• for initial operation
• for testing
• for continuous operation
with the chamber cover closed and with the flue
system fully mounted and sealed.
7.2 Inspection and maintenance instructions
Only original Vaillant spare parts may be used for
inspections, maintenance and repair work to ensure the
perfect long-term working order of all functions of the
Vaillant appliance and to prevent the allowed serial con-
dition from being changed.
Please contact Vaillant Service Solutions (0870 6060 777)
for further details.
Note!
If inspection and maintenance work is neces-
sary with the mains switch on, this is indicated
in the description of the maintenance work.
Danger!
The supply terminals of the appliance are under
voltage even if the mains switch is off.
Always perform the following steps prior to maintenance
work:
• Switch off the mains 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 supply 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 supply 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 gas shut-off cock.
• 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 re-bleed the heating system.
• Put on the appliance‘s front casing.