Repairs And Inspection; Repairs - Viessmann VITOMAX 200-HS Operating And Service Instructions

Repairs and inspection

Repairs

General requirements
Repair work may only commence after
the person responsible for such repairs
has determined the required safety
measures, has inspected their imple-
mentation and has declared the place of
work to be safe to proceed. Following the
completion of the work, safety measures
may only be removed on the instruction
of the person whose responsibility they
are.
Keep all gaskets in the closure systems
clean and dry. Additives, such as sealing
compounds or separating agents must
generally not be used. Exceptions
require the agreement of the gasket
manufacturer. Only use gaskets in their
original condition and in accordance with
the manufacturer's installation and oper-
ating instructions.
Working on hot pressurised medium
Work by personnel on systems or parts
of systems that carry hot pressurised
medium (e.g. valves in steam lines) is
not permitted if, during such work, the
risk of releasing the medium cannot be
totally excluded.
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Work in areas at risk may only com-
mence if the system or parts of the sys-
tem have previously been reliably dep-
ressurised and are also not under nega-
tive pressure, that this state has been
secured and a person authorised by the
user has checked the implementation of
this measure and has certified in writing
that the area of work is safe. (This also
applies if line sections have been isola-
ted for the purpose of a shutdown.)
These required measures that depend
on the individual system must be laid
down in writing by the user in the form of
operating instructions.