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Boiler Outlet
Adaptor
Fig. 21
Clip
Flue Duct
Adaptor
Seal
Boiler Outlet
Adaptor
Fig. 22
1
Fig. 23
Air Duct Adaptor
20
Blanking Pipe
Gasket
Air Duct
Adaptor
Gasket
Air Shutter
Locating Dog
1
Fig. 22a
8.0 Installation
8.6
Fitting The Flue
1. Sections 7.12 and 7.13 give details of available
flue components, equivalent flue lengths etc.
2. The flue and air duct adaptors must be fitted to
the boiler outlet adaptor and boiler top panel
(Fig. 21).
3. Pass the seal over the flue duct adaptor.
Engage the 60mm diameter end of the flue duct
adaptor on the boiler outlet adaptor and slide the
seal down so that it equally covers the joint
(Fig. 22).
4. Fit the clip over the adaptors and seal, and
tighten the securing screws. Where possible
position the clip so that the screws are not visible.
5. After determining the routing of the air duct
remove the appropriate blanking plate from the
boiler top panel, being careful not to damage the
gasket. Retain the gasket and screws (Fig. 21).
6. Insert the plastic air shutter into the hole in the
top panel. Ensure that the locating dog on the
shutter locates in the notch in the top panel
(Figs. 22 & 22a).
7. Replace the gasket previously removed and fit
the air duct adaptor, ensuring that the pointer on
the adaptor aligns with the markings on the top
panel (Fig. 22).
8. Engage the air duct adaptor securing screws
but do not tighten them. The pointer on the
adaptor must align with one of the three
numbered marks on the top panel depending on
flue length. This will give the correct air inlet
restriction.
Total Equivalent
Flue Length
0 to 15m
15 to 30m
30 to 70m
Notch
9. Rotate the adaptor so that the pointer aligns
with the appropriate numbered mark and fully
tighten the securing screws (Fig. 23).
Top Panel
Mark
1
2
3
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