Viessmann Vitodens 100 Series Installation And Service Instructions Manual page 23

Mounting the boiler and making connections
Installing a flue system for external wall connection
A
1. Create a wall opening with a min.
diameter of 105 mm.
2. Push external wall connection A
with wall bezel B into the wall
opening.
704
B
470
3. Secure wall bezel C internally.
4. If the external wall connection ter-
minates near public roads up to a
height of 2 m above ground level, fit
a protective grille.
Installation sequence
(cont.)
550
C
23