Vaillant ecoTEC plus VU Series Installation Manual page 47

2
1
+ 40 mm
3. First, measure the required air pipe length* (A) and
then calculate from that the corresponding flue gas
pipe length (B) in each case:
–
Length of the flue pipe: Length of the air
pipe + 40 mm
–
Minimum length of air-pipe extension: 80 mm.
4. Shorten the pipes, e.g. with a saw.
5. After shortening it, lock the flue pipe (1) inside the air
pipe (2) again: Push the flue pipe back into the air pipe.
Turn the flue pipe as far as it will go.
5.14.2.2 Installing 80/125 mm diameter extensions
(PP)
4
1. Turn the flue pipe (1) to a position that enables the
ledges (3) on the plastic pipe to be pushed through the
spacer (4).
2. Pull the flue pipe out of the air pipe (2).
2
1
+ 40 mm
3. First, measure the required air pipe length* (A) and
then calculate from that the corresponding flue pipe
length (B) in each case:
–
Length of the flue pipe: Length of the air
pipe + 40 mm
–
* Minimum length of air-pipe extension: 100 mm.
4. Cut the pipes with a saw, tin snips, etc.
5. After shortening, lock the flue pipe (1) inside the air
pipe (2) again.
0020308120_02 Air/flue pipe installation manual
1.
2
1
2.
3 2 1
1.
2
1
2.
5.14.2.3 Installing 80/125 mm diameter (stainless
steel) extensions
1. Unscrew the screws (3).
2. Pull the flue pipe (1) out of the air pipe (2).
2
1
+ 40 mm
3. First, measure the required air pipe length* (A) and
then calculate from that the corresponding flue pipe
length (B) in each case:
–
Length of the flue pipe: Length of the air
pipe + 40 mm
–
* Minimum length of air-pipe extension: 100 mm.
4. Cut the pipes using tin snips, a saw, etc., suitable for
stainless steel.
5. After shortening, lock the flue pipe (1) inside the air
pipe (2) again.
5.14.3 Installing elbows (white)
5.14.3.1 Correctly aligning the elbows
Danger!
Risk of poisoning due to escaping flue
gas.
Unnecessary loads on the connections may
cause leaks.
▶
Align the elbows correctly.
▶
Observe the following illustrations when using two 87°
elbows.
Arrangement of the 2 x 87° elbows – View from above
3 2 1
1.
2
1
2.
47