Safety instructions
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.
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
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.
2
Note
Details identified by the word "Note" contain additional
information.
■
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.
National installation regulations
■
Statutory regulations for the prevention of accidents
■
■
Statutory regulations for environmental protection
■
Codes of practice of the relevant trade associations
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.