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 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
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.
Wear protective clothing.
■
!
Please note
Electronic assemblies can be damaged by elec-
trostatic discharge.
Prior to commencing any work, touch earthed
objects such as heating or water pipes to dis-
charge static loads.
Danger
Hot surfaces can cause burns.
Before maintenance and service work, switch
■
OFF the appliance and let it cool down.
■
Never touch the hot surfaces of uninsulated
pipes and fittings.
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.
2
Note
Details identified by the word "Note" contain additional
information.
Codes of practice of the relevant trade associations
■
Relevant country-specific safety regulations
■
Danger
Floors which are wet, damp or covered in fluids
containing glycol present a risk of injury through
slipping and falling.
When carrying out installation and mainte-
■
nance work, ensure that the floor is kept clean
and dry.
■
Wear non-slip shoes.
Danger
Breathing in or swallowing broken-off fragments
of insulating material may result in death by
asphyxiation.
■
Do not allow children to play in the installation
room.
Clean the installation room after installation
■
and maintenance work.