General Safety Information - Vaillant HOME SYSTEM 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 from
escaping gas
What to do if you smell gas in
the building:
▶ Avoid rooms that smell of
gas.
▶ If possible, open doors and
windows fully and ensure
adequate ventilation.
▶ Do not use naked flames (e.g.
lighters, matches).
▶ Do not smoke.
▶ Do not use any electrical
switches, mains plugs, door-
bells, telephones or other
4
communication systems in
the building.
▶ If it is safe to do so, close the
emergency control valve or
the main isolator.
▶ If possible, close the gas isol-
ator cock on the product.
▶ Warn other occupants in the
building by yelling or banging
on doors or walls.
▶ Leave the building immedi-
ately and ensure that others
do not enter the building.
▶ Notify the gas supply com-
pany or National Grid Transco
+44 (0) 800 111999 by tele-
phone from outside of the
building.
1.3.4 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.
1.3.5 Risk of death from
escaping flue gas
If you operate the product with
an empty condensate siphon,
flue gas may escape into the
room air.
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