Safety Instructions - Viessmann VITODENS 300 Service Instructions Manual

Safety instructions

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.
!
Important information
This symbol warns against the
risk of material losses and
environmental pollution.
Note
Details identified by the words "Note"
contain additional information.
Target group
These service instructions are exclu-
sively designed for qualified person-
nel.
&
Work on gas equipment must only
be carried out by a registered gas
fitter.
&
Electrical work must only be carried
out by a qualified electrician.
&
The system must be commissioned
by the system installer or a qualified
person authorised by the installer.
Regulations
Observe the following during service
work:
&
all legal instructions regarding the
prevention of accidents,
&
all legal instructions regarding
environmental protection,
2
&
the Code of Practice by relevant
trade associations and all local reg-
ulations.
&
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 cause explo-
sions which may lead to ser-
ious injury.
&
Do not smoke. Prevent
naked flames and sparks.
Never switch electrical lights
or equipment.
&
Open windows and doors.
&
Close the gas shut-off valve.
&
Shut down the system.
&
Remove all personnel from
the danger zone.
&
Observe the safety regula-
tions of your local gas sup-
plier which can be found on
the gas meter.
If you smell flue gas
Danger
Flue gas may lead to life-threa-
tening poisoning.
&
Shut down the heating sys-
tem.
&
Ventilate the boiler room.
&
Close all doors leading to the
living space.