Viessmann Vitocrossal 200 Service Instructions Manual page 3

Safety instructions
Working on the system
Isolate the system from the power
supply and check that it is no longer
'live', e.g. by removing a separate
fuse or by means of a mains isola-
tor.
Safeguard the system against
unauthorised reconnection.
When using gas as fuel, also close
the main gas shut off valve and
safeguard against unauthorised
reopening.
Repair work
!
Please note
Repairing components which
fulfil a safety function can com-
promise the safe operation of
your heating system.
Replace faulty components
only with original Viessmann
spare parts.
(cont.)
Ancillary components, spare and
wearing parts
!
Safety instructions
Please note
Spare and wearing parts which
have not been tested together
with the heating system can
compromise its function. Instal-
ling non authorised compo-
nents and non approved
modifications or conversions
can compromise safety and
may invalidate our warranty.
For replacements, use only ori-
ginal spare parts supplied or
approved by Viessmann.
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