2
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 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
■
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
■
National installation regulations
■
Statutory regulations for the prevention of accidents
■
Statutory regulations for environmental protection
■
Codes of practice of the relevant trade associations
Safety instructions for working on the system
Commissioning
Note
Unpleasant odours may develop during commission-
ing. Ensure the installation room is well ventilated.
Before 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.
Hot surfaces
Danger
Hot surfaces can lead to burns. Never touch hot
surfaces, e.g.
■
Steam pipes
■
Hot water pipes
■
Cleaning apertures and closures on the boiler
system
■
Boiler doors, as well as components behind
the doors
Observe occupational safety. Wear protective
clothing where necessary.
Electrostatic discharge
!
Please note
Electronic assemblies can be damaged by elec-
trostatic discharge.
Prior to commencing work, touch earthed
objects such as heating or water pipes to dis-
charge static loads.
Repair work
!
Please note
Repairing components that fulfil a safety func-
tion can compromise the safe operation of the
system.
Replace faulty components only with genuine
Viessmann spare parts.
Safety instructions
Safety instructions
5837984
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