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3. installation
3.4.3 Fitting the Coaxial Flue
(Ø 60 / 100 Vertical)
Total length
of Vertical Kit
1355 mm
Vert Adaptor
(supplied with flue kit)
Vertical Starter
Part No: 3318079
* This length will vary
according to the type
of flashing installed
Fig. 3.20
20
Useable length
of Vertical flue
690 mm*
180 mm
Fig. 3.21
Note: See table for maximum and minimum fl ue runs.
Contents:
1x Silicone O-Ring (60mm)
1x Conical Adaptor (60/100mm)
1x Vertical Flue Kit (80/125mm)
3x Screws
The vertical fl ue kit is supplied with a specially designed
weather proof terminal fi tted, it can be used either with a fl at
roof or a pitched roof.
The Vertical fl ue kits useable lengths with the pitched roof
fl ashings are indicated in Fig. 3.20.
Before proceeding to fi t the fl ue, ensure that the maximum
fl ue length has not been exceeded (See the tables) and that
all elbows and bends have been taken into consideration, the
maximum fl ue length is see table, for each additional 90°
elbow 1 metre must be subtracted from the total fl ue length,
and for each 45° 0.5 metres must be subtracted from the total
fl ue length (the height of the vertical adaptor and a 45° bend
can be seen in Fig. 3.21).
Mark the position of the fl ue hole in the ceiling and/or roof
(see Fig. 3.20 for distance from wall to the centre of the fl ue).
Cut a 130mm diameter hole through the ceiling and/or roof
and fi t the fl ashing plate to the roof.
DO NOT cut the vertical fl ue kit.
To connect the vertical fl ue kit directly to the boiler, place the
vertical starter kit (Part No. 3318079) (see Fig. 3.20) onto the
exhaust manifold and secure with the clamp, fi t 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 fi t connection),
the vertical fl ue kit must then be inserted through the roof
fl ashing, this will ensure that the correct clearance above the
roof is provided as the terminal is a fi xed 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 fl ue
kit to be fi tted. 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 inner and outer fl ue remain fl ush.
When utilising the vertical fl ue system, action must be taken
to ensure that the fl ue is supported adequately to prevent the
weight being transferred to the appliance fl ue connection by
using 1 fl ue bracket per extension.
When the fl ue passes through a ceiling or wooden fl oor, there
must be an air gap of 25mm between any part of the fl ue system
and any combustible material. The use of a ceiling plate will
facilitate this. Also when the fl ue passes from one room to
another a fi re stop must be fi tted to prevent the passage of
smoke or fi re, irrespective of the structural material through
which the fl ue passes.
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