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General information
Safety instructions
Please follow these safety instructions closely to prevent accidents and
material losses.
Work on the equipment
Installation, initial start-up,
inspection, maintenance and repairs
must only be carried out by a
competent person (heating
engineer/installation contractor).
Before working on the equipment/
heating system, isolate the mains
electrical supply (e.g. by removing a
separate mains fuse or by means of
a mains electrical isolator) and
safeguard against unauthorised
reconnection.
When using gas as fuel, also close
the main gas shut-off valve and
safeguard against unauthorised
reopening.
Work on gas equipment
This must only be carried out by an
approved contractor.
Please observe all commissioning
work specified for gas installations to
TRGI or TRF and all local regulations.
Please observe all commissioning
work specified for gas systems.
Repair work
It is not permitted to carry out
repairs on parts that fulfil a safety
function.
Use only original Viessmann spare
parts, or equivalent parts that have
been approved by Viessmann.
Initial start-up
The initial start-up must be carried
out by the system installer or a
designated commissioning engineer.
All actual values should be recorded
in a commissioning/service report.
Instructing the system user
The system installer must hand the
operating instructions to the system
user and instruct him/her in the
operation of the system.
¨ĂSafety instruction
Denotes information which must be
observed to prevent accidents and
material losses.
5692Ă531ĂGB
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