Glow-worm Swift flow 100 Installation Instructions Manual page 13

6.2 Marking
The boiler mounting frame is the same width as the
boiler but the flue connection sticks out at 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 forwards 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 6.4 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 6.5.
From the flue position marks, check that the flue
terminal will be in a suitable position, see diagram 3.4.
6.3 Flue Hole Cutting
Cut the hole horizontally in the wall, making sure that it
does not slope down towards the boiler, to the diameter
shown in diagram 6.4, preferably using a core drill.
The internal access flue requires a core drilled hole of
the same diameter.
After cutting the hole, check that it will accept the
circular air ducting and terminal, taken from the carton.
If applicable, also check that it will accept the internal
access wall sleeve.
6.4 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.
6 I n s t a l l a t i o n P r e p a r a t i o n
MIN.
CLEARANCE
87
104
480
FLUE
584
TEMPLATE
(Cut from
carton top
inner flap)
CORNER
(Right Flue)
168
115Dia.
13
115Dia.
FLUE
CENTRELINE
TOP OF
BOILER
BOILER
MOUNTING FRAME
FIXINGS POINTS
300
Diagram 6.4
CORNER
(Left Flue)
168
FLUE
CENTRE
LINE
Diagram 6.5
221017B