Glow-worm Swift flow 120 Installation Instructions Manual page 14

6 A p p l i a n c e
6.2 Marking
The boiler mounting frame is the same width as the
boiler case. The flue connection is on the top.
Place the boiler mounting frame on the wall in the
required position, see diagram 2.1, to maintain minimum
clearances. Make sure that the isolation valves are at the
bottom facing forward and that the frame top is
horizontal, then mark the four wall fixing points through
the holes in the two horizontal straps.
Position the flue template on the wall, the arrow points
on the centres of the two upper fixing points previously
marked, see diagram 6.5 which also gives dimensions.
For a rear flue, mark the position as required.
For a side flue, mark the horizontal flue centre line at the
sides of the template. Extend the flue centre line
horizontally left or right to the internal corner where the
flue is required to exit to outside.
Mark the position of the circular hole, on the flue exit
wall, using the dimensions given in diagram 6.6.
From the flue position marks, check that the flue
terminal will be in a suitable position, see diagram 3.5.
6.3 Flue Hole Cutting
Having marked out the flue centre, cut a hole for the
flue, using, preferably, a 130mm minimum core drill.
Cut the hole horizontally in the wall, making sure that it
does not slope down toward the boiler.
6.4 Wall Sleeve
If the wall thickness "Q" is less than 300mm cut the wall
sleeve to the required length, see diagram 6.7.
Fit the wall sleeve.
Make good around the wall sleeve at both 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 INSIDE wall face.
If the inner end of the sleeve sticks out into the cavity
then, if desired, the wall sleeve can be trimmed back to
the depth of the inner skin of brickwork. Make good at
the internal wall face but leave the external wall face
until the flue has been fitted.
6.5 Boiler Mounting Frame Fixing
Position the flue template over the flue hole and check
the position of the wall fixing points. Mark the position
of the fixing holes again, if required.
Drill the four fixing holes and insert wall plugs to suit
No.10x50mm screws.
Secure the boiler mounting frame to the wall using
No.10x50mm screws.
220674B
Supplied By www.heating spares.co Tel. 0161 620 6677
a n d F l u e
MIN. CLEARANCE
FLUE
TEMPLATE
(Cut from
carton top
inner flap)
CORNER
(Right Flue)
130 Dia.
WALL SLEEVE
14
P r e p a r a t i o n
FLUE
CENTRELINE
BOILER
MOUNTING FRAME
FIXING POINTS
300
Diagram 6.5
168 168
FLUE
CENTRE
LINE
Diagram 6.6
Q
300mm MAX
LENGTH
Q
Diagram 6.7
130 Dia.
TOP OF
BOILER
CORNER
(Left Flue)