Vaillant ecoTEC plus 412 - Page 27

8000026412_01 Air/flue pipe installation manual 27
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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.
5.9.5.5 Routing extensions for the variable terminal
set around eaves
min. 400 mm min. 100 mm
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.