16
5. Position the seal and clamp (two screws) supplied, over the bend. Fit the bend to the boiler and rotate to the correct position.
Secure in position using the seal and clamp, ensuring the seal is located centrally over both the bend and boiler adaptor.
6. Fit the inside flue sealing collar over the Easy-Flue. Fit the outside flue sealing collar onto the flue immediately before the
terminal grille onto the location provided.
7. Slide the clamp (three screws) over the outer duct and pull the flue assembly towards the bend, locating the inner duct into
the seal joint on the bend. Ensure the labels marked 'TOP' are positioned at the top before securing the flue assembly to
the bend with the clamp (three screws) located centrally over the joint.
Note: Check the flue terminal protrudes 90 mm out of the wall and the inner duct of the terminal is positioned correctly
(see Fig. 18).
8. Make good the inside wall by pushing the inside flue sealing collar upto the wall.
Alpha CD25X/28X - Installation
Fig. 18 - Rear flue
Flue Length
Up to maximum:-
Between:-
Between:-
Between:-
Less than:-
Rear Flue (B)
11.86 m
705 mm and 945 mm
550 mm and 705 mm
310 mm and 550 mm
310 mm
Side Flue (B + C)
11.775 m
620 mm and 860 mm
465 mm and 620 mm
225 mm and 465 mm
225 mm
Comments
Alpha CD 750 mm or 1000 mm flue extension
(Part No. 6.2000750 or 6.2001050) is required to
extend the range of telescopic flue.
Refer to Section 4.7 paragraph 2 for instructions
on how to extend the flue.
Note: A 130 mm flue hole (127 mm core drill) is
required in the wall.
Within the standard Easy-Flue 1000 mm
(Part No. 6.20001000) telescopic range.
Use an Easy-Flue 1000 mm (Part No. 6.20001000)
and the terminal may protrude somewhat from the
outside wall.
Within standard Easy-Flue 500 mm
(Part No. 6.2000500) telescopic range.
Terminal may protrude somewhat from the outside
wall.
Note: Subtract 40 mm to dimension B if the wall jig is used.
40 (80 if wall jig used)
140
(180 if wall jig used)
90
Outer duct clamp
Inner duct seal joint
Inner duct seal joint
90° bend
Terminal
Flue sealing collar
Note: Ensure the outer flue duct is horizontal
Boiler side
CD Easy-Flue
Ensure the inner duct within
the terminal is at the top.
The inner duct must
be positioned to slope towards
the boiler
Note:
4.7 EXTENDING THE FLUE - Fig. 19
Note: The maximum horizontal flue assembly length must not exceed a length of 12 metres.
1. When the flue length required is more than the maximum or less than the minimum stated in Section 4.6, paragraph 1,
refer to the table below.
Fig. 17 - Fitting the flue from inside
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