Vaillant ecoTEC plus 412 Installation Manual page 32

–
Use at least three of the six holes (1) that are avail-
able in the terminals to secure the flue pipe.
5. Install the collar.
6. Before you install the boiler, check that the wall duct is
safely secured in place.
7. Seal the installation gap using a suitable material (e.g.
mortar).
8. Install the boiler (→ Installation instructions for the boil-
er).
5.14 Installing terminal sets for 60/100 mm
diameter air/flue systems
Caution.
Risk of material damage due to low tem-
peratures
In the case of temperatures below 0 °C and in
unheated rooms, the flexibility of the terminal
piece and the end pipe is reduced.
▶
Install the end pipe terminal piece with
particular care.
5.14.1 Black terminal set – 0010039348
5.14.1.1 Scope of delivery
1
1 Collar
2 Terminal piece
5.14.1.2 Installing the black terminal
Note
You must install the terminal sets before installing
the flue pipework.
32
2 3
3 End pipe
1. Undo the end pipe's lock using a flat-blade screwdriver
and pull it out to the front.
1
2. Pry open the snap-on connections (1) on both sides
using a flat-blade screwdriver and use the terminal
piece to pull the flue pipe out of the air pipe.
3. Undo the flue pipe (1) from the terminal piece using a
flat-blade screwdriver.
–
Ensure that the flue pipe is not damaged.
Air/flue pipe installation manual 8000026412_01
A
B
C
1