Chaffoteaux & Maury BRITONY SX 14 FF Installation, Servicing And User's Manual page 14

4.1 Fitting the Coaxial Flue (
e.g.
X = 508mm - 48mm = 460mm
823 - 460 = 363mm (Length to be cut from the plain
end of the flue).
Ensure that the inner flue is 23mm longer than the outer
flue. See Fig. 14.
Once cut to the required length, ensure that the flue is
free from burrs and reassemble the flue. If fitting the flue
from inside of the building attach the grey outer wall seal
to the flue terminal and push the flue through the hole,
once the wall seal has passed through the hole, pull the
flue back until the seal is flush with the wall.
Alternatively, the flue can be installed from outside of the
building, the grey outer seal being fitted last.
Should the flue require extending, the flue connec-
tions are push fit, however, one flue bracket should
be used to secure each metre of flue.
4.2 Fitting the Coaxial Flue (
N : S 18
OTE EE PAGE FOR MAXIMUM AND MINIMUM FLUE RUNS
C :
ONTENTS
1 S O-R (60mm)
X ILICONE ING
1 C A (60/100mm)
X ONICAL DAPTOR
1 V F K (80/125mm)
X ERTICAL LUE IT
3 S
X CREWS
The vertical flue kit is supplied with a specially designed
weather proof terminal fitted, it can be used either with
a flat roof or a pitched roof.
The Vertical flue kits useable lengths with the pitched
roof flashings are indicated in Fig. 15.
Before proceeding to fit the flue, ensure that the maxi-
mum flue length has not been exceeded (See the tables
on Page 18) and that all elbows and bends have been
taken into consideration, the maximum flue length is 4
metres, for each additional 90
subtracted from the total flue length, and for each 45
0.5 metres must be subtracted from the total flue length
(the height of the vertical adaptor and a 45
can be seen in Fig. 16).
Mark the position of the flue hole in the ceiling and/or
roof (see Fig. 15 for distance from wall to the centre of
the flue).
Cut a 120mm diameter hole through the ceiling and/or
roof and fit the flashing plate to the roof.
60/100 Horizontal) Continued/......
Ø
23
60/100 Vertical)
Ø
.
o elbow 1 metre must be
o
o bend
23
mm
1
mm
2
14
Seal
L
1
2
m m
2 3
Clamp
Screws
F . 13
IG
L
F . 14
IG
Fig. 15