5602 138 GB 4/2011
Dispose after installation.
Installation instructions
for contractors
VIESMANN
Commissioning steps for wireless components
Abridged version
Safety instructions
Please follow these safety instructions closely to prevent accidents and
material losses.
Installation, initial start-up, inspection,
maintenance and repairs must only be
carried out by a competent person (heat-
ing engineer/installation contractor).
Before working on the equipment/heat-
ing system, isolate the power supply
(e.g. by removing a separate mains fuse
or by means of a mains isolator) and
safeguard against unauthorised recon-
nection.
When using gas as fuel, also close the
main gas shut-off valve and safeguard
against unauthorised reopening.
Repairing components which fulfil a
safety function can compromise the safe
operation of your heating system.
For replacements, use only original
spare parts supplied or approved by
Viessmann.
Usage information
Complete description of the commis-
sioning steps:
Installation and service instruc-
tions, wireless base station and
Vitotrol
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