Viessmann VITOCROSSAL Installation Instructions Manual page 2

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.
Target group
These instructions are exclusively intended for quali-
fied 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
■ Codes of practice of the relevant trade associations
All current safety regulations as defined by DIN, EN,
■
DVGW, TRGI, TRF, VDE and all locally applicable
standards
ÖNORM, EN, ÖVGW G K directives,
a
ÖVGW-TRF and ÖVE
SEV, SUVA, SVGW, SVTI, SWKI, VKF and
c
EKAS guideline 1942: LPG, part 2
Working on the system
Isolate the system from the power supply (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 reconnection.
■ Where gas is used as the fuel, close the main gas
shut-off valve and safeguard it against unintentional
reopening.
2
Note
Details identified by the word "Note" contain additional
information.