Baxi Potterton BBU 15 HE manual Barb ‘C’ Clip

Fig. 22

Fig. 21

Remove plug from here

NOTE: These seals factory lubricated

Fig. 24

Barb

Fig. 24a

Fig. 23

‘C’ Clip

7.0Installation

7.2Flue System (cont.)

8.It is recommended that the Pull Cone Flue Adaptor (part no. 720111801) is used as shown to ease the fitting of the flue into the chimney and prevent damage to the adaptor.

9.The cone has two internal lugs that engage on the boiler adaptor in a bayonet action (Figs. 21 & 22).

10.A suitable weight should then be tied to the guide rope fixed to the cone. The weight can then be passed into the chimney and will draw the guide rope down (Fig. 23).

11.Once the Pull Cone is visible in the builders opening it can be removed. It can be re-used indefinitely on other installations.

Note: It is recommended that the boiler is installed at this point. See Sections 8.3 to 8.7

12.Remove the plastic plug from the boiler flue outlet. Grasp the adaptor and locate it into the boiler, ensuring the two large barbs lock into position under the boiler top panel (Fig. 24) Fit the ‘C’ clip to the adaptor to secure the flue. It must fit into the barbs and clip securely into place (Fig. 24a).

13.There will now be an excess of flue and air duct protruding from the chimney.

14.Cut the excess concentric ducts to leave approximately 300 to 500mm protrudung from the chimney and pass the square closure plate over the air duct (Figs. 25 & 26).

15.Cut the 100mm air duct ONLY that 5 ‘ribs’ are above the level of the chimney, taking care not to damage the 60mm flue duct.

16.In a similar way to fitting the boiler adaptor fit the air duct clamp to the air duct. This will prevent the duct falling back into the chimney (Fig. 27).

Fig. 25

Fig. 26

22© Baxi Heating UK Ltd 2009

Cut to leave 5 ribs visible

Fig. 27