Vaillant VED E 18/7 E HK, Инструкция по использованию и установке

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Operating instructions for the electronicVED exclusive electric instantaneous water heater 0020176440_00
Maintenance
Recycling and disposal 7
8
7 Maintenance
The permanent operational readiness, operational safety,
reliability and long service life of your electronicVED exclu-
sive electric instantaneous water heater require inspections
and maintenance work to be carried out by a competent
person.
a
Danger!
Risk of injury and material damage due
to incorrect maintenance and repairs.
If you fail to carry out maintenance, or if
you carry this out incorrectly, this may
adversely affect the operating reliability of
the unit.
>
Never attempt to perform maintenance
work or repairs on your electronicVED
exclusive yourself.
>
You must employ an approved heating
specialist company to complete such
work. We recommend making a mainte-
nance agreement.
b
Caution.
Possible material damage to the unit.
A lack of maintenance can affect the func-
tional safety of the VED. E.g. unit defects
caused by limescale formation. In areas of
hard water (more than 2.5 CaCO
3
mmol/l)
or very hard water (more than 3.6 CaCO
3
mmol/l), a significantly more frequent
maintenance interval may be required.
>
Have your electronicVED exclusive
inspected at least every 2 years by a
competent person.
>
If you live in an area with very hard
water, Vaillant recommends that you
have the maintenance service carried out
once a year by a competent person.
8 Recycling and disposal
If your Vaillant unit is labelled with this symbol
(identification plate), it should not be disposed of
with your household waste at the end of its useful
life.
>
In this case, ensure that your Vaillant unit and any acces-
sories are properly disposed of at the end of its/their
useful life.