Viessmann Vitocrossal Installation Instructions Manual page 2

Safety instructions
Please follow these safety instruc-
tions 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 environmen-
tal pollution.
Target group
These instructions are exclusively inten-
ded for qualified contractors.
Work on gas installations may only be
■
carried out by a registered gas fitter.
Work on electrical equipment may only
■
be carried out by a qualified electrician.
Regulations to be observed
National installation regulations
■
Statutory regulations for the prevention
■
of accidents
Statutory regulations for environmental
■
protection
Working on the system
Where gas is used as the fuel, close
■
the main gas shut-off valve and safe-
guard it against unintentional reopen-
ing.
Isolate the system from the power sup-
■
ply, e.g. by removing the separate fuse
or by means of a mains isolator, and
check that it is no longer live.
Safeguard the system against recon-
■
nection.
Wear suitable personal protective
■
equipment when carrying out any work.
2
Note
Details identified by the word "Note"
contain additional information.
Codes of practice of the relevant trade
■
associations
Relevant country-specific safety regu-
■
lations
Danger
Hot surfaces and fluids can lead to
burns or scalding.
Before maintenance and service
■
work, switch off the appliance and
let it cool down.
Never touch hot surfaces on the
■
boiler, burner, flue system or pipe-
work.