17
221051B
17
SECTION
5
Flue Installation
300mm MAX
LENGTH
5.5mm DRILL SIZE
No. 10x1
1
/
2
in
SCREW
WALLPLUG
115mm
MINIMUM
HOLE
125mm
Q
Q
2894
s t e p
s t e p
6
s t e p
8
7
Mark and extend the flue horizontal
centre line to the corner of the adjacent
surface.
Mark out and cut the hole for the flue
using preferably, a 115mm minimum
core drill.
Side Flue Application
Having selected the boiler location,
with due regard to boiler clearances
and the terminal position.
Position the wallplate/template on the
wall. Mark the top and bottom boiler
mounting hole positions.
Remove the wallplate/template, drill the
holes and then secure the wallplate/
template with the fittings provided.
WALL SLEEVE
If the wall thickness “Q” is less than
300mm cut the wall sleeve to the required
length.
Fit the wall sleeve.
Make good around the wall sleeve at both
the internal and external wall faces
(through the wall sleeve if internal
access only is available).
If the wall thickness “Q” is greater than
300mm the wall sleeve must be fitted
flush with the internal wall face.
Make good at the internal wall face, leave
the external wall face until later.
If the inner end of the sleeve sticks out
into a cavity then, if desired, the wall
sleeve can be trimmed back to the depth
of the inner skin of the brickwork.
