3
If you smell flue gas
Danger
Flue gas can lead to life-threat-
ening poisoning.
■ Shut down system.
■ Ventilate boiler room.
Working on the system
■ Close the fuel shut-off valve and
secure against unintentional opening.
■ Isolate the system from the power sup-
ply and check that it is no longer 'live',
e.g. by removing the separate fuse or
by means of a main isolator.
■ Safeguard the system against unau-
thorised reconnection.
!
Please note
Electronic assemblies can be
damaged by electrostatic dis-
charges.
Before beginning work, touch
earthed objects, such as water
pipes, to discharge static loads.
Danger
Risk of burning from hot surfaces
so that
■ steam line,
■ hot water line,
■ cleaning cover and closures/
plugs at the boiler system,
■ boiler doors, as well as compo-
nents behind the doors,
can all become very hot. Observe
safety in the workplace!
Repair work
!
Please note
Repairing components that fulfil a
safety function can compromise
the safe operation of your sys-
tem.
Replace faulty components only
with original Viessmann spare
parts.
Auxiliary components, spare and
wearing parts
!
Please note
Spare and wearing parts that
have not been tested together
with the heating system can com-
promise its function. Installing
non-authorised components and
making non-approved modifica-
tions or conversions can compro-
mise safety and may invalidate
our warranty.
For replacements, use only orig-
inal spare parts supplied or
approved by Viessmann.
Draining hot water
!
Please note
The blow-down and T.D.S. water
from boiler systems can reach
temperatures of up to and over
100 °C.
Set up the system in such a way
that this water is cooled to a tem-
perature of < 35 °C before being
channelled into the drainage sys-
tem. If necessary, consult the
local water board.
Safety instructions
Safety instructions
(cont.)
5727 529 GB
Summary of Contents for Vitomax 200-LW M64A
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