Alpha Alpha CD Easy-Flue Manuale utente
Installation Instructions
KIT CONTENTS
1. GENERAL
Note: These flues MUST ONLY be used with the Alpha CD Condensing boilers.
a. The Alpha Easy-Flue is suitable for straight horizontal flues only and can be extended up to the maximum lengths
given in paragraph (f), below.
b. The easy-Flue includes a 90° bend, (no separate 90° bend is required).
c. Ensure the flue assembly is installed horizontally and the inner flue duct has a slight downward slope towards the boiler.
d. The flue system must be installed in accordance with BS 5440:1:1990.
e. The boiler must be installed in accordance with the installation instructions supplied with the CD boiler.
f. The CD Easy-Flues are suitable for use in the flue length ranges shown in the tables below.
Note: Where the length is less than the minimum or more than the maximum, refer to section 4.
Alpha CD Easy-Flue
CD Easy-Flue 500 mm Part No. 6.2000500
CD Easy-Flue 1000 mm Part No. 6.2001000
Fig. 1 Fig. 2
CD Easy-Flue
500 mm
1000 mm
B (mm)
Max
520
915
Min
280
675
CD Easy-Flue
500 mm
1000 mm
Max
460
855
Min
220
615
B + C (mm)
2. INSTALLTHE BOILER
a. Fit the boiler in accordance with the installation instructions supplied with the CD boiler - sections 4.1 to 4.5.
b. Use the template (supplied with the boiler) to mark the flue position and cut a 110 mm diameter flue hole (or use a
107 mm core drill).
Notes: a. Ensure the hole is cut horizontally.
b. If the Easy-Flue is to be extended or is being fitted internally, a 130 mm diameter flue hole is required
(refer to section 3, paragraph (c) or section 4).
3. FITTHE FLUE
The following procedure applies to fitting an Alpha CD Easy-Flue to both rear or side exit flue - horizontally only.
Note: If extending the Easy-Flue refer to section 4.
a. Determine the overall length (L) of flue required, (see Fig. 3) as follows:-
Rear flue L = wall thickness (B) + 170 mm
Side flue L = wall thickness (B) + distance between boiler and wall (C) + 230 mm
b. Adjust the telescopic section of the flue to the distance 'L', ensuring that the two labels marked 'TOP' are aligned,
then seal and secure the joint between the ducts with the sealing tape supplied.
c. Pass the flue assembly through the wall (from inside or outside).
Note: Internal fitting - If there is no access to make good the outside wall, locate the flue sealing collar onto the outer
duct of the flue immediately before the terminal grille onto the location provided. Push the flue assembly through the 130
mm flue hole, so that the collar completely passes through the wall. Then pull the flue assembly back into the correct
position. Visually check that the collar is sealing the outside wall and that it is not restricting any of the openings of the
flue terminal.
d. 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.
e. 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.
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 100 mm out of the wall and the inner duct of the terminal is positioned
correctly (see Fig. 5).
g. Make good the inside wall by pushing the inside flue sealing collar up to the wall.
Fig. 3
Fig. 4 - Fitting the flue from inside
Fig. 5 - Rear flue
4.7 EXTENDINGTHE FLUE - Fig. 5
Note: The maximum horizontal flue assembly length must not exceed a length of 12 metres.
a. When the flue length required is more than the maximum or less than the minimum stated in section 1, paragraph (f),
refer to the table below.
Flue Length
Up to maximum:-
Between:-
Between:-
Between:-
Less than:-
Rear Flue (B)
11.83 m
675 mm and 915 mm
520 mm and 675 mm
280 mm and 520 mm
280 mm
Side Flue (B + C)
11.77 m
615 mm and 855 mm
460 mm and 615 mm
220 mm and 460 mm
220 mm
Comments
Alpha CD 750 mm flue extension
(Part No. 6.2000750) 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.
b. 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.
c. Determine the overall flue length as described in section 3, paragraph (a) to determine the number of Alpha CD 750
mm flue extensions required.
d. Assemble the flue extensions together by locating the inner duct into the seal joint and secure each extension
together with the clamps supplied (three screws). Ensure that the clamps are positioned centrally over the joints.
Note: If it is required to cut an extension, DO NOT cut the end of the inner duct that incorporates the seal joint.
Ensure the inner duct end without the seal joint is cut so that it is 15 mm longer than the outer duct.
e. Adjust the telescopic section of the Easy-Flue to the required length and secure the Easy-Flue with the sealing tape
supplied. Fit the Easy-Flue to the extensions by locating the inner duct into the seal joint and secure with the clamp
(three screws), ensuring it is located centrally over the joint.
f. Mark the end of the flue assembly 'TOP' where it is connected to the boiler, so that the 'TOP' of the flue terminal is
aligned with the 'TOP' at the boiler end of the flue assembly.
g. Pass the complete flue assembly through the wall.
h. Position the seal and clamp (two screws) supplied, over the bend. Fit the bend to the boiler and rotate to the correct
position and secure in position using the seal and clamp, ensuring that the seal is positioned centrally over both the
bend and adaptor.
Compiled and designed by Publications 2000, Tel (01670) 356211 11/03/D155
i. 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.
j. Secure the flue assembly to the bend with the clamp (three screws) ensuring it is positioned centrally over the joint,
ensuring the 'TOP' marked on the outer duct is positioned at the top.
Note: Check the flue terminal protrudes 100 mm out of the wall and that the inner duct of the terminal is positioned
correctly, i.e. the inner duct within the terminal is at the top. See Fig. 6.
k. Make good the outside wall by fitting a flue sealing collar onto the location provided immediately behind the flue
terminal grille. Make good the inside wall as required.
Note: If flue sealing collars are being used to make good the inside wall, then they will need to be fitted before
assembling the flue.
Fig. 6 - Side flue
These instructions have been carefully prepared but we reserve the right to
alter the specification at any time in the interest of product improvement.
© Alpha Therm Limited 2003.
Alpha Therm Limited.
NepicarHouse,LondonRoad,WrothamHeath,
Sevenoaks, Kent TN15 7RS
Tel: 0870 3001964
email: [email protected]
website: www.alpha-boilers.com
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