Alpha E-Tec Plus 28NX - Page 22

Alpha E-Tec Plus 28NX, 33NX and 38NX - Installation
Fig. 5.10 - Fitting the flue from inside
Check collar is sealing
the wall and it is not
restricting any openings
of the flue terminal
130 mm
5. Fit the inside (white) flue sealing collar over the Easy-Flue. If it was not previously fitted, fit the outside (black) flue
sealing collar onto the flue immediately before the terminal grille onto the location provided.
6. Place the flat concentric gasket (supplied with the boiler) onto the boiler, ensuring the protruding 60mm rib is facing
downwards and located correctly.
7. Fit the bend to the flue turret supplied with boiler. Push the bend onto the Easy-Flue, fully engaging both inner and outer
duct.
8. Check the flat concentric gasket is still in the correct position and fix the flue turret to the boiler with the 4 screws
(supplied with the boiler). Refer to Section 5.6.
Note: Check the flue terminal protrudes 120 mm out of the wall and the inner duct of the terminal is positioned correctly
(see Fig. 5.11).
9. Make good the inside wall by pushing the inside flue sealing collar up to the wall.
Refer to the boiler manual for more details about flue turret and flat concentric gasket installation.
Fig. 5.11 - Push fit rear flue
Fig. 5.12
5.8 REDUCING THE FLUE - Fig. 5.12
When the flue length required is less than the minimum stated in Section 5.7, paragraph 1, refer to Fig. 5.12.
Discard the first telescopic section (not the section with the terminal) of the Easy-Flue 1000 mm or 500 mm and cut to the
required length.
Note: Ensure that all cuts are square and free from burrs.
Once assembled with the components pushed home, the flue is fully sealed.
65 mm
Do not cut past this point
120
90° bend
Terminal
Flue sealing collar
Side of boiler
Easy-Flue
Ensure the inner duct within
the terminal is at the top.
The inner duct mustNote:
be positioned to slope towards
the boiler
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65
Flue length (L)
66 (111 if wall jig used)
135 (180 if wall jig used)
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