Installation Of The Sliding Sleeve; Installation Of The Horizontal Air/Flue Duct; Contents Included With Delivery - Vaillant Air flue duct Installation Instructions Manual

3 Optional Concentric System Ø 80/125
3.4

Installation of the sliding sleeve

Installing the air/flue duct sliding sleeve
h Note
For installations where there is insufficient
movement to allow fitting of the flue into flue
outlet, a sliding sleeve (Accy. No. 303 215) is
available. When using the sliding sleeve both
the air and flue ducts of the last extension
must be shortened by a further 85 mm.
4 3
5
Fig. 3.4 Installing the sliding sleeve
• Push the sliding sleeve (1) over the cut end of the flue
duct (2).
• Place the air duct clamp (7) over the air duct.
• Pull back the sliding sleeve so that it engages into the
socket (3) of the boiler (4). Ensure that the sliding
sleeve penetrates the socket such that there is at
least 20 mm engagement at both ends of the sliding
sleeve.
• Fit the air duct clamp over the air ducts (5 and 6) of
the extension/terminal and boiler outlet. Close the
snap clamp.
• Drill two holes 3 mm diameter through the air duct
clamp (the centre of the holes should be 6 mm from
the edge of the clamp). Ensure that the drill does not
penetrate the inner flue duct. Screw the air duct
clamp to the air duct of the sleeve using the screws
provided.
• Complete the installation of the flue as detailed in
these instructions.
40
1 2
7
6
3.5

Installation of the horizontal air/flue duct

Caution!
a
The air/flue duct is not concentric and the air
duct has a slope of 1.5° (if the air flue duct is
not cut). The hole through the wall can there-
fore be drilled horizontally with no slope.
Where extensions are used, these must be in-
stalled with a slope at 3°
50 mm 20 mm rise per metre length) to en-
sure that condensate does not remain in the
sleeve.
h Note
Observe the maximum flue lengths as detailed
in sections 3.2.3 and 3.2.4.
Note
See section 3.2 for details of air/flue duct ele-
ments.
3.5.1

Contents included with delivery

Fig. 3.5 Horizontal air/flue conduit
Horizontal air/flue duct
Accy. No. 303 209
Contents of the accessory:
- Horizontal air/flue duct
- 87° elbow
- 2 x 70 mm air duct clamps
- 1 x internal plastic ring Ø 125
- 1 x external metal plate
Flue installation instructions ecoTEC 834449_13
1° (equivalent to