Safety Instructions - Viessmann Vitodens 300 Installation Instructions Manual

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.
&
Work on gas appliances must only
be carried out by a qualified gas fit-
ter.
&
Work on electrical equipment must
only be carried out by a qualified
electrician.
2
Regulations
Observe the following when working
on this system
&
all legal instructions regarding the
prevention of accidents,
&
all legal instructions regarding
environmental protection,
&
the Code of Practice of relevant
trade associations,
&
all current safety regulations as
defined by DIN, EN, DVGW, TRGI,
TRF, VDE and all locally applicable
standards.
Working on the system
&
Isolate the system from the power
supply and check that it is no longer
'live', e.g. by removing a separate
fuse or by means of a mains isola-
tor.
&
Safeguard the system against
unauthorised reconnection.
&
When using gas as fuel, also close
the main gas shut‐off valve and
safeguard against unauthorised
reopening.