*****INTERNAL*****30 R_D proof- 26.10.2022 / 09:15:46- VaillantGroup\DOC-agt\Brand\VIH_QW_190_6\ENG\OI-II_GB_0020291525
18 Installation and maintenance instructions 0020291525_04
▶ Make sure that the product is carried by at
least two people.
▶ Use suitable transport and lifting equip-
ment, in accordance with your job safety
analysis.
▶ Use suitable personal protective equip-
ment: Gloves, safety footwear, protective
goggles, protective helmet.
1.2.7 Material damage due to unsuitable
installation surface
The installation surface must be even and
have sufficient load-bearing capacity to sup-
port the operating weight of the product. An
uneven installation surface may cause leaks
in the product.
There is a risk of death if the connections are
subject to leaks.
▶ Make sure that the product is positioned
flush against the installation surface.
▶ Ensure that the installation surface has
sufficient load-bearing capacity to bear the
operating weight of the product.
1.2.8 Risk of material damage due to
malfunctioning
Not rectifying faults, changing the safety
devices and failing to carry out maintenance
can cause malfunctioning and pose safety
risks during operation.
▶ Ensure that the heating installation is in a
technically perfect condition.
▶ Ensure that no safety or monitoring
devices have been removed, bridged or
disabled.
▶ Immediately eliminate any faults and dam-
age that may affect safety.
1.2.9 Material damage due to additives in
the heating water
Unsuitable antifreeze and corrosion inhibitors
may damage seals and other components
of the heating circuit, and may therefore also
cause water leaks.
▶ Only add approved antifreeze and corro-
sion inhibitors to the heating water.
1.2.10 Risk of material damage caused by
frost
▶ Do not install the product in rooms prone
to frost.
1.2.11 Risk of material damage caused by
using an unsuitable tool
▶ Use the correct tool.
1.3 Regulations (directives, laws,
standards)
▶ Observe the national regulations, stand-
ards, directives, ordinances and laws.
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