15
221051B
15
SECTION
s t e p
5
Flue Installation
s t e p
1
s t e p
3
No. 10x1
1
/
2
in
SCREW
300mmMAX
LENGTH
Q
Q
115mm
MINIMUM
HOLE
WALLPLATE/
TEMPLATE
2892
2
WALL SLEEVE
WALLPLUG
5.5mm DRILL SIZE
Rear Flue Application
Having selected the boiler location
with due regard to the terminal
position;
Using an adhesive tape temporarily
position the wallplate/template on the
wall.
Mark out the centre and cut the hole
for the flue using, preferably, a 115mm
minimum core drill.
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
internal and external wall faces (through
the wall sleeve if internal access is only
available).
If the wall thickness “Q” is greater than
300mm the wall sleeve must be fitted
flush with the INSIDE wall face. If the
inner end of the liner sticks out into a
cavity then, if desired, the wall liner can
be trimmed back to the depth of the inner
skin of the brickwork. Make good at the
internal wall face, leave the external wall
face until later.
Reposition the wallplate/template
ensuring alignment with the flue
hole. Mark the top and bottom
boiler mounting hole positions.
Remove wallplate/template, drill
holes and then secure wallplate/
template to the wall with the fittings
provided in the loose items pack.
