Installation information
for heating engineers
Return connecting pipe replacement
for Vitodens100, typeWB1A
Safety instructions
Observe the following safety instructions:
Installation, initial start−up, inspection,
maintenance and repairs must be
carried out by a competent person
(heating engineer/installation
contractor).
Before working on the equipment/
heating system, isolate the power
supply (e.g. by removing a separate
mains fuse or by means of a mains
isolator) and safeguard against
unauthorised reconnection.
Close the main gas shut−off valve
and safeguard against unauthorised
reopening.
It is not permitted to carry out repairs
on parts that fulfil a safety function.
For replacements, use only original
spare parts from Viessmann or those
which are approved by Viessmann.
5341210GB7/2005
Dispose after installation!
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