Viessmann Vitocell 100-B Service Instructions Manual page 2

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
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.
■
!
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.
■ Work on electrical equipment may only be carried
out by a qualified electrician.
■ The system must be commissioned by the system
installer or a qualified person authorised by the
installer.
Codes of practice of the relevant trade associations
■
■ Relevant country-specific safety regulations
Danger
Floors that are wet, damp or wetted with glycol
based liquids can cause injury due to slipping
and falling.
Keep the floor clean and dry during installation
■
and maintenance work.
■ Wear non-slip shoes.
Danger
Broken-off fragments of insulation material can
cause death by suffocation if inhaled or swal-
lowed.
■ Do not let children play in the installation
room.
Keep the installation room clean after installa-
■
tion and maintenance work.