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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 must only be carried out by
a registered gas fitter.
Work on electrical equipment may only be carried
■
out by a qualified electrician.
■
The commissioning must only be carried out by
trained specialist personnel in accordance with the
Viessmann operating and service instructions.
Regulations to be observed
■
Pressure Equipment Directive
Health and Safety at Work Act (BetrSichV) [Ger-
■
many] and extended technical rules for operational
safety (TRBS)
■
Country-specific safety regulations for the installation
site
Working on the system
■
Close the fuel shut-off valve and secure against
unintentional reopening.
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.
2
Note
Details identified by the word "Note" contain additional
information.
■
National installation regulations
Statutory regulations for the prevention of accidents
■
Statutory regulations for environmental protection
■
■
Codes of practice of the relevant trade associations
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