Worcester 26CDi Xtra, Installation And Servicing Instructions

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flue terminal.
f) Drill through the holes in the flue terminal into the air duct
with the drill provided. Fix the flue terminal temporary with the
screws provided.
NB: When assembled correctly the flue duct will extend 44mm
beyond the air duct. See fig. 23.
g) Undo the screws and ease the air duct clear of the flue
terminal. Apply a bead of silicone sealant, provided, around the
groove in the air duct. Reassemble the air duct into the flue
terminal. Fix permanently with the original screws.
h) From outside, pass the flue assembly through the wall. Locate
the flue duct into the flue outlet on the turret.
i) Ease the flue duct into the turret and then ease the air duct
into the turret until fully located. See fig. 24.
j) Drill through the holes in the turret into the air duct and fix
temporary with the screws provided. See fig. 24.
k) Undo the screws and ease the air duct just clear of the turret.
Apply a bead of silicone sealant, provided, around the air duct.
Reassemble into the turret and fix with the original screws. See
fig. 24.
l) Align the flue turret with the 4 holes on the appliance. Ensure
the flue outlet from the fan is correctly engaged in the turret and
the sealing gasket is in place. Screw the turret onto the top of the
inner casing. See fig. 20.
m) Make good the internal and external brickwork or rendering.
If it is required to fit the flue system from inside the building, the
hole in the wall must be 150mm (6 in.) diameter for the Standard
Flue assembly.
If the Extended Flue assembly is used refer to fig. 17 for the hole
in the wall diameter.
Measure and cut the ducts as previously described in Section
10.4 and 10.5.
Assemble the air and flue ducts to the flue terminal and flue
turret as previously described. See Section 10.4.
Fit the rubber sealing gasket to the flue terminal. Centralise the
gasket and tighten the clamping ring. See fig. 25.
Pass the assembly through the wall from inside the building so
that the gasket flange is against the outside face of the wall.
See fig. 26.
Slide the flue centring ring, available from Worcester Heat
Systems, onto the air duct and tighten the screw. See fig. 26.
Align the flue turret with the four holes on the appliance. Ensure
the flue outlet from the fan is correctly engaged in the turret and
the sealing gasket is in place. Screw the turret onto the top of the
inner casing. See fig. 20.
Seal the gap around the duct with the sealant provided and
make good internal brickwork.
10.6 Flue Kit for Internal Fitting
(Optional extra)
18
Fig. 23. Air Duct, Flue Duct and Flue
Terminal Assembly.
Air duct length (rear flue) = L + 166mm
(side flue) = L + 194mm
Flue duct length (rear flue) = L + 166mm
(side flue) = L + 194mm
Air duct Flue duct
Flue Terminal
Measuring
ring
Flue duct must extend
44mm beyond air duct
on final assembly
Fig. 24. Fixing the Air Duct, Flue Duct and Flue Terminal Assembly
to the Flue Turret and Appliance Casing.
Flue turret Fixing screws Air Duct Flue Duct
2
1
/
2
¡ incline
Measuring ring
(NB: 2
1
/
2
¡ incline is
equivalent to 44mm
per metre.)
Gasket seal
Appliance casing
Seal this joint
*
L mm
* Measure distance L from the
rear or side of the appliance to
the outside of the wall
Seal this joint
Fixing screws
Flue terminal