Vaillant ecoTEC plus 412 - Connecting the Product

8000026412_01 Air/flue pipe installation manual 23
5.7.2 Shortening the air/flue pipe
87
87
A
A
B
1.
2.
1. Flue system to the rear
2. Flue system to the side
A Clearance to the ex-
ternal wall
B Clearance to the in-
ternal wall: 125 mm
1. Measure the clearance (A) from outside of the wall to
the centre of the connector.
13 mm
A + 22 mm
2. Remove the flue pipe from the air pipe.
3. Shorten the flue pipe and the air pipe by the same
amount.
Condition: Additional extensions and elbows required
▶ Install the extensions. (→ Section 5.19.2)
– All of the sleeves for the flue pipe must point towards
the terminal.
▶ Install the elbows (→ Section 5.19.4).
5.7.3 Installing the wall duct
87
13
1
3°
1. Drill a hole.
– Diameter: 125 mm
Note
If the wall duct can be accessed from the
exterior of the building, you can drill the hole
with a diameter of 110 mm and install the
collar from outside.
2. Slide the air/flue pipe (1) with the flexible collar through
the wall.
3. Pull the air/flue pipe back until the collar forms a tight
seal on the external wall.
4. Secure the air/flue pipe with mortar and leave the mor-
tar to harden.
5. Install the collar on the inside of the wall.
6. Connect the wall/roof duct to the product using exten-
sions, elbows and, if required, a sliding sleeve, see
"Connecting the product".
5.7.4 Installing the roof duct
13
87
3°
1
▶ Insert the air/flue pipe (1) into the dormer.
5.7.5 Connecting the product
45
321
6
7
1. Install the product (7) – see the installation instructions
for the product.
2. Connect the 87° elbow (1) to the connector for the
air/flue pipe (6).
3. Fit the sliding sleeve (3) with the sleeve as far as it will
go onto the wall/roof duct (4) or the extension (5).
4. If required, install the extensions .
5. Connect the sliding sleeve to the 87° elbow.
6. Install the air pipe clamp (2) for the sliding sleeve.