15
Fig. 18 - Rear flue
Alpha CD13R, 18R, 24R - Installation
f. 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).
g. Make good the inside wall by pushing the inside flue sealing collar up to the wall.
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.
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:
CD13R/18R
CD24R
160 mm
130 mm
CD13R/18R
CD24R
65 mm
35 mm
2. Use the template (supplied with the boiler) to mark the required flue position and cut a 130 mm diameter hole for the flue
(use a 127 mm core drill). The size of the hole provides sufficient clearance for the clamps on the flue extension to pass
through the hole.
Flue Length
CD13R/18R Up to:-
CD24R Up to:-
CD13R/18R Between:-
CD24R Between:-
CD13R/18R Between:-
CD24R Between:-
CD13R/18R Between:-
CD24R Between:-
CD13R/18R Between:-
CD24R Between:-
Less than above
Rear Flue (B)
11.93 m max
11.96 m max
740 mm and 945 mm
770 mm and 975 mm
95 mm and 685 mm
125 mm and 715 mm
300 mm and 505 mm
330 mm and 535 mm
95 mm and 245 mm
125 mm and 275 mm
Side Flue (B + C)
11.89 m max
11.89 m max
700 mm and 905 mm
700 mm and 905 mm
55 mm and 645 mm
55 mm and 645 mm
260 mm and 465 mm
260 mm and 465 mm
55 mm and 205 mm
55 mm and 205 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. 6.2001010) telescopic range.
Discard the first telescopic section of the Easy-Flue
1000 mm (i.e. not with terminal) and cut to the required
length
Within standard Easy-Flue 500 mm
(Part No. 6.2000510) telescopic range.
Discard the first telescopic section of the Easy-Flue 500
mm (i.e. not with terminal) and cut to the required length.
Terminal may protrude somewhat from the outside wall.
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