General Safety Information - Vaillant HOME REGULAR 12-A Operating Instructions Manual

1 Safety
1.3 General safety
information
1.3.1 Installation by skilled
tradesmen only
The installation, inspection,
maintenance and repair of the
product, as well as the gas ratio
settings, must only be carried
out by a competent person.
1.3.2 Danger caused by
improper operation
Improper operation may present
a danger to you and others, and
cause material damage.
▶ Carefully read the enclosed
instructions and all other ap-
plicable documents, particu-
larly the "Safety" section and
the warnings.
1.3.3 Risk of death due to a
blocked or leaking flue
gas pipe
What to do if you smell flue gas
in the property:
▶ Open all accessible doors
and windows fully to provide
ventilation.
▶ Switch off the product.
▶ Inform a competent person.
1.3.4 Risk of death from
escaping flue gas
If you operate the product with
an empty condensate siphon,
4
flue gas may escape into the
room air.
▶ In order to operate the
product, ensure that the con-
densate siphon is always full.
1.3.5 Risk of death due to
explosive and flammable
materials
▶ Do not use or store explosive
or flammable materials (e.g.
petrol, paper, paint) in the in-
stallation room of the product.
1.3.6 Risk of death due to lack
of safety devices
A lack of safety devices (e.g.
expansion relief valve, expan-
sion vessel) can lead to poten-
tially fatal scalding and other
injuries, e.g. due to explosions.
▶ Ask a competent person
to explain how the safety
devices work and where they
are located.
1.3.7 Risk of death due
to changes to the
product or the product
environment
▶ Never remove, bridge or
block the safety devices.
▶ Do not alter the safety
devices in any way.
▶ Do not damage or remove
any seals on components.
▶ Do not make any changes:
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