Operating instructions

2
General information
Safety instructions
Please follow these safety instructions closely to prevent accidents and
material losses.
Safety regulations
Installation, initial start-up,
inspection, maintenance and repairs
must be carried out by a competent
person (heating engineer/installation
contractor).
Observe all current safety
regulations as defined by DIN, EN,
DVGW, TRGI, TRF and VDE or locally
applicable standards.
See also the safety instructions sheet
in the Vitotec Technical Guide.
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 mains shut-off valve and
safeguard against unauthorised
re-opening.
Work on gas equipment
This must only be carried out by an
approved contractor.
Please observe all commissioning
work specified for gas installations
acc. to TRGI or TRF and all local
regulations.
Repair work
It is not permitted to carry out repairs
on parts that fulfil a safety function.
Initial start-up
The initial start-up must be carried
out by the installer of the system 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
In this instruction manual, this
heading denotes information which
must be observed to prevent
accidents and material losses.
¨ This symbol denotes information
which must be observed to
prevent material losses.
5862Ă297ĂGB