Viessmann Vitoligno 300-C Installation And Service Instructions For Contractors 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.
Note
Details identified by the word "Note" contain additional
information.
Target group
These instructions are exclusively intended for quali-
fied contractors.
Work on electrical equipment must 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.
Regulations to be observed
■ National installation regulations
Statutory regulations for the prevention of accidents
■
Statutory regulations for environmental protection
■
Codes of practice of the relevant trade associations
■
■ All relevant safety regulations as defined by DIN, EN,
DVGW, VDE and locally applicable standards
ÖNORM, EN and ÖVE
a
SEV, SUVA, SVTI and SWKI
c
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'.
Note
In addition to the control circuit there may be several
power circuits.
Danger
Contact with 'live' components can result in
severe injuries. Some components on PCBs
remain 'live' even after the power supply has
been switched off.
Wait at least 4 minutes before removing equip-
ment covers, to allow the voltage to dissipate.
Safeguard the system against reconnection.
■
2
!
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.
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.
Auxiliary components, spare and wearing parts
!
Please note
Spare and wearing parts that have not been tes-
ted together with the system can compromise its
function. Installing non-authorised components
and making non-approved modifications or con-
versions can compromise safety and may inva-
lidate our warranty.
For replacements, use only original spare parts
supplied or approved by Viessmann.
Installation room
Danger
Suffocation hazard due to carbon monoxide pro-
duced during incomplete combustion due to lack
of combustion air.
Ensure an adequate supply of fresh air. Never
cover or close vents.
Danger
Easily flammable liquids and materials can
cause deflagration and fires.
Do not store easily flammable substances in the
boiler installation room (e.g. petrol, solvents and
cleaning agents, paints, paper).