Specification - Viessmann Vitolig
200 Technical Manual

4.4 Flue gas connection
Chimney
Flue pipe
500 mm
(400 mm)
B
C
A
A Clean−out cover
B Thermal insulation
C Flexible flue pipe inlet into the
chimney
A chimney corresponding to regulations
and appropriate for the rated boiler
output is a pre−requisite for an efficient
operation.
Note that in its lower output range,
Vitolig 200 can create flue gas
temperatures below 160 ºC. Therefore,
connect combustion equipment to highly
insulated chimney stacks (thermal
resistance class I acc. to DIN 18160T1)

Specification:

Rated output
Required draught
Minimum stack height
*1
Minimum cross−section
Boiler room ventilation min.
CO content
2
*1
Acc. to DIN 4759.
The vacuum draught fan may induce
vibrations, which may lead to a noise
nuisance. We therefore recommend the
use of a flue pipe silencer or a flexible
chimney adaptor.
Dimension without brackets: relative to
the boiler edge
Dimension inside brackets: relative to the
casing edge
or use suitable, moisture−resistant flue
gas systems, which have been
type−approved. The chimney should
provide a smooth interior and must not
have any cracks or restrictions.
The installation of a draught restrictor is
recommended for brick chimneys and
draughts above 0.25 mbar.
kW 13 to 26
mbar 0.13
m 6
*2
180
mm
2
cm 150
% by 13
vol.
Note the following when connecting the
flue pipe:
H Install the flue pipe rising to the
chimney (if possible with 45 º). Max.
flue pipe length 3000 mm.
A flue pipe stretch with a slight
inclination (up to 30 º) or
one which is horizontal may be of a
length of max. 1000 mm.
H Provide the flue pipe with thermal
insulation (min. thickness 50 mm).
H Do not push the flue pipe too far into
the chimney.
H Ensure the full flue gas path (incl.
clean−out cover) is gas−tight.
H Do not insert the flue pipe into the
brickwork of the chimney; instead use a
flexible flue pipe adaptor for connection
to the chimney.
Set the clean−out cover (check for
leaks).
4 Vitolig 200
20 to 40
0.15
7
*2
180
33