Technical information

15
NO
TE
:SE
EPAGE
19 F
OR MAXIMUM AND MINIMUM FLUE RUNS
.
CONTENTS:
1X SILICONE O
-R
ING (
60mm)
1
X CONICAL ADAPTOR (60/100mm)
1X VERTICAL FLUE KIT (
80/125mm)
3X SC
REWS
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. 2.15.
Before proceeding to fit the flue, ensure that the maximum flue
length has not been exceeded (See the tables on Page 19) and
that all elbows and bends have been taken into consideration, the
maximum flue length is 4 metres, for each additional 90
o
elbow 1
metre must be subtracted from the total flue length, and for each
45
o
0.5 metres must be subtracted from the total flue length (the
height of the vertical adaptor and a 45
o
bend can be seen in
Fig. 2.16).
Mark the position of the flue hole in the ceiling and/or roof (see
Fig. 2.15 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.
DO NOT cut the vertical flue kit.
To connect the vertical flue kit directly to the boiler, place the
vertical starter kit
(Part No. 3318079) (see Fig. 2.16) onto the
exhaust manifold and secure with the clamp, fit the vertical
adaptor onto the vertical starter kit (note: there is no need to use
a clamp to secure this as it is a push fit connection), the vertical
flue kit must then be inser
ted through the roof flashing, this will
ensure that the correct clearance above the roof is provided as
the terminal is a fixed height.
Should extensions be required, they are available in 1 metre
(Part No. 3318077), 500mm (Part No. 3318078) and 160mm
lengths, they must be connected directly to the vertical starter kit
before connecting the adaptor to allow the vertical flue kit to be
fitted. In the event that extension pieces need to be shortened,
they
must only be cut at the male end and it must be ensured
that the distance between the inner and outer flue is maintained
(
Fig. 2.12).
When utilising the vertical flue system, action must be taken to
ensure that the flue is supported adequately to prevent the
w
eight being transferred to the appliance flue connection by
using 1 flue bracket per extension.
When the flue passes through a ceiling or w
ooden floor
, there
must be an air gap of 25mm between any part of the flue system
and any combustible material. The use of a ceiling plate will
f
acilitate this
. Also when the flue passes from one room to
another a fire stop must be fitted to prevent the passage of
smok
e or fire, irrespective of the structural material through which
the flue passes
.
2.9.3. FITTING THE COAXIAL FLUE
(Ø 60 / 100 VERTICAL)
FIG. 2.15
FIG. 2.16