Viessmann VITODENS 300 Service Instructions Manual page 2

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.
!
Please note
This symbol warns against the
risk of material losses and
environmental pollution.
Note
Details identified by the word "Note"
contain additional information.
Warranty
Non-observation of our service
instructions will void all warranty
rights.
Target group
These service instructions are exclu-
sively designed for qualified person-
nel.
Work on gas appliances must only be
carried out by a qualified gas fitter.
Only recognised contractors may con-
vert this boiler for use in countries
other than those stated on the type
plate. That contractor must also
arrange the acceptance in accor-
dance with the statutes of that coun-
try.
Work on electrical equipment must
only be carried out by a qualified elec-
trician.
2
The system must be commissioned by
the system installer or a qualified per-
son authorised by the installer.
Regulations
Observe the following when servicing
the equipment:
all legal instructions regarding the
prevention of accidents,
the TRGI, TRF and any special
requirements, or local regulations
all legal instructions regarding
environmental protection,
the Code of Practice of relevant
trade associations.
If you smell gas
Danger
Escaping gas can lead to
explosions which may lead to
serious injury.
Never smoke. Prevent naked
flames and sparks.
Never switch lights or electri-
cal appliances ON or OFF.
Open windows and doors.
Close the gas shut-off valve.
Remove all people from the
danger zone.
Observe the safety regula-
tions of your local gas sup-
plier, found on the gas meter.
Notify your contractor from
outside the building.