Vaillant ecoTEC plus 412 - Installing Extensions

8000026412_01 Air/flue pipe installation manual 21
5.6.3.2 Installing the variable terminal set (VTK)
A
B
1. Release the catch between the opening piece and the
end pipe.
2. Pull the end pipe from the opening piece.
0°
3. Slide the first 87° elbow onto the opening piece until
you hear the 87° elbow click into place.
5.6.3.3 Installing extensions
1. Install the flue system from the 87° elbow to the flue
outlet.
– Begin with the extension with the sleeve. To be
able to install the second 87° elbow with the end
pipe, you must install the extension without a
sleeve last.
– Allow expansion space of 1 cm in each sleeve.
– Ensure that all pipe joints are absolutely leak-tight.
100
80-100
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.
43
10
13
3. Drill the fastening holes away from the centre.