Vaillant ecoTEC plus 412 Installation Manual page 27

2. Secure the extensions to the wall using the pipe
clamps.
–
Use one pipe clamp for each extension directly
beside the sleeve.
–
Upstream of each elbow, install another pipe clamp
on the extension.
–
Secure the 87° elbow with bird-guard grille using a
separate pipe clamp.
8000026412_01 Air/flue pipe installation manual
55
5.9.5.5 Routing extensions for the variable terminal
set around eaves
When installing the variable terminal set around eaves, ad-
ditional M8 threaded rods are required for the pipe clamps.
The threaded rods are commercially available.
▶
If required, install additional 45° elbows.
▶
Install the bird-guard grille from the 87° elbow in the last
extension.
–
If you are using the 87° elbow, insert the seal for the
extension.
27