Potterton Performa 24 Installation & Servicing Instructions Manual page 20

Elbow
Seal
Adaptor
Fig. 29
Seal
Clip
Screws
Fig. 30
Fig. 31
Clip
Fig. 32
20
Restrictor
Flue Duct
Flue Duct
Clamp
Screws
Air Duct
Seal
8.0 Installation
8.6 Fitting the Flue (Cont)
IMPORTANT: If the flue length is greater than
1.5m the restrictor MUST be removed from
the adaptor (Fig. 29).
7. Insert the flue duct into the air duct and pass
them through the hole in the wall.
8. Take one of the rubber seals and position it on
the boiler flue adaptor. Engage the flue elbow on
the adaptor and pull the sleeve up so that it
equally covers the joint (Fig. 29).
9. Remove the screws from one of the clips
provided. Prise the clip apart and fit it over the
seal. Set the elbow to the required angle
(Fig. 30).
10. Refit the screws to the clip and tighten them
to secure the elbow. Take the second rubber
seal and position it on the flue elbow.
11. Locate the flue duct clamp on the flue outlet
elbow. Draw the flue duct out of the air duct,
engage it in the clamp and tighten the screws
(Fig. 31).
12. Draw the air duct out of the wall and align it
with the elbow. Position the seal so that it equally
covers the joint (Fig. 32).
13. Remove the screws from the second clip
provided. Prise the clip apart and fit it over the
seal. Refit the screws to the clip and tighten
them (Fig. 32).
14. Where possible position the clips so that the
screws are not visible.
15. Make good between the wall and air duct
outside the building.
16. Fit the circular flue trim outside if required,
and if necessary fit a terminal guard (see
Section 7.10 & 7.11).