Viessmann VEK, Service Instructions Manual

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2
General information
Safety instructions
¨
Please follow these safety instructions closely to prevent accidents and
material losses.
Safety instructions explained
¨
Danger
This symbol warns against the
risk of injury.
!
Please note
This symbol warns against the
risk of material losses and
environmental pollution.
Note
Details identified by the word "Note"
contain additional information.
Target group
These instructions are exclusively
designed for qualified personnel.
H
Work on gas equipment must only
be carried out by a registered gas
fitter.
H
Electrical work must only be
carried out by a qualified
electrician.
H
The system must be commissioned
by the system installer or a
qualified person authorised by the
installer.
Regulations
Observe the following when working
on this system
H
all legal instructions regarding the
prevention of accidents,
H
all legal instructions regarding
environmental protection,
H
regulations issued by professional
bodies,
H
all current safety regulations as
defined by DIN, EN, DVGW, TRGI,
TRF, VDE and all locally applicable
standards.
If you notice a smell of gas
¨
Danger
Escaping gas can lead to
explosions which may lead to
serious injury.
H
Do not smoke! Prevent
naked flames and sparks.
Never switch electrical lights
or equipment.
H
Open windows and doors.
H
Close the gas shut−off valve.
H
Shut down the heating
system.
H
Remove all people from the
danger zone.
H
Observe the safety regulations
of your local gas supplier
found on the gas meter.
5692589GB