Fig. 5 - Rear flue
4.7 EXTENDING THE 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.
