Viessmann VITODENs 200 Installation Instructions Manual page 19

Safety instructions
If you smell flue gas
Danger
Flue gas may lead to life-threa-
tening poisoning.
&
Shut down the heating sys-
tem.
&
Ventilate the boiler room.
&
Close all doors leading to liv-
ing areas.
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.
(cont.)
Service work on the heating system
&
&
&
Ancillary components, spare and
wearing parts
Isolate the system from mains sup-
ply and check that it is no longer
"live", e.g. by removing a separate
fuse or by means of a mains electri-
cal isolator.
Safeguard the system against
unauthorised reconnection.
When using gas as fuel, also close
the main gas shut-off valve and
safeguard against unauthorised
reopening.
!
Important information
Components which are not
tested with the heating system,
the installation of non-
approved spare parts and
unauthorised conversion may
lead to damage to the heating
system, which may affect their
function and limit our warranty.
For conversions or replace-
ments, use only original parts
from Viessmann or those spare
parts which are approved by
Viessmann.
Safety instructions
3