8000026412_01 Air/flue pipe installation manual 17
4. Secure the air pipes to each other by screwing the
overlapping air pipes together using the supplied self-
tapping screws on the underside (1).
5. Seal the gap in the telescopic air pipe using the sup-
plied adhesive tape (2).
6. Slide the air/flue pipe (1) with the flexible collar through
the wall.
7. Pull the air/flue pipe back until the collar lies fully on the
external wall.
8. Secure the air/flue pipe with mortar and leave the mor-
tar to harden.
9. Install the collar on the inside of the wall.
10. Connect the wall/roof duct to the product using ex-
tensions, elbows and, if required, a sliding sleeve.
(→ Section 5.4)
5.3.3 Installing the roof duct
▶ Insert the air/flue pipe (1) into the dormer.
5.4 Connecting the product
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.
7.
Alternatives 1:
Condition: Wall/roof duct without extension
▶ Install the sliding sleeve. (→ Section 5.19.1)
7.
Alternatives 2:
Condition: Wall/roof duct with extension
▶ Install the extensions. (→ Section 5.19.2)
▶ Install the elbows (→ Section 5.19.4).
▶ Install the sliding sleeve. (→ Section 5.19.1)
▶ Connect all of the pipe joints with air pipe clamps.
(→ Section 5.19.5)
5.5 Direct, rear, telescopic wall duct –
0020228140 – diameter 60/100 mm
5.5.1 Scope of delivery
1 Telescopic wall duct
2 Collar
3 Locking screws (4 pcs)
4 Sealing tape
5.5.2 Determining the pipe length and the location
of the wall duct
1. Determine the pipe length (→ Installation instructions
for the boiler) and define the location of the wall duct.
2. Measure the clearance Y from the external wall to the
installation surface for the boiler.
3. Set the required pipe length:
– At least: Y + 24 mm
– Maximum: Y + 28 mm
– If you install the collar, add 12 mm to the total pipe
length.
– If the terminal is below a roof overhang or a ho-
rizontal surface, you can pull the wall duct up to
500 mm out of the wall in order to guarantee that
the flue gases are extracted without any obstruc-
tions.
Note
Do not shorten the telescopic flue pipe.
If the required pipe length cannot be
achieved, use extensions or the horizontal
wall/roof duct.
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