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Alpha CB/C/SY Top Easy-Flue 1000 mm
Appendix 1 - Installation from inside the building (no access to outside wall).
a.
Using the tables below, determine the flue length (L) required. See Fig. 7.
Note: The hole for the flue MUST be 130 mm diameter (127 mm core drill).
b.
Adjust the flue to the distance 'L' then seal and secure the joint between the ducts with the sealing tape supplied.
c.
Position the rubber seal over the 90° bend as shown in Fig. 7.
d.
Fit the inside flue sealing collar over the flue. Fit the second flue sealing collar (supplied with the boiler) onto the flue
immediately before the terminal. Push the flue assembly through the hole, so that the collar completely passes
through the wall. Then pull back into the correct position. See Fig. 8.
Alpha CB/C/SY Range
Rear Flue
L = Wall thi 265 mm
Side Flue
L = Wall thi distance between boiler and wall + 275 mm
Fig. 7
Fig. 8
e.
Secure the 90° bend to the boiler using the clamp and rubber seal. Ensure that the seal covers the bend and adaptor
joint. See Fig. 9.
f.
Make good the inside wall by pushing the inside collar up to the wall.
Fig. 9
