Viessmann Vitodens 100 WB1A Installation And Service Instructions Manual page 10

Preparing for installation
Technical Specification
An extra 87° elbow can be used but
this reduces the maximum permissi-
ble length by 1 m . An extra 45° elbow
can be used but this reduces the max-
imum permissible length by 0.5 m .
A Combined length of flue outlet/
ventilation pipe max 6m.
Concentric Vertical Flue System
The vertical flue kit (optional extra)
with extensions may be used for up
to10 m applications.
10
(cont.)
B Flue outlet/ventilation pipe (can
be shortened as necessary)
An extra 87° elbow can be used but
this reduces the maximum permissi-
ble length by 1 m. An extra 45° elbow
can be used but this reduces the max-
imum permissible length by 0.5 m.