Technical data

11
e
4.5.3 CONCENTRIC VERTICAL FLUE 60/100 mm
The vertical flue terminal can be connected
directly to the appliance flue outlet. Alternatively,
an extension or bend can be connected to the
appliance flue outlet if desired (see 4.4.2),
however if additional bends are fitted, a reduction
must be made to the maximum flue length (see
table below).
Using the dimensions given in fig. 9 as a refer-
ence, mark and cut a 115mm hole in the ceiling
and/or roof.
Fit the appropriate flashing plate to the roof and
insert the vertical flue terminal through the
flashing plate from the outside, ensuring that the
collar on the flue terminal fits over the flashing.
The fixing holes for the wall-mounting bracket
should now be drilled and plugged, an
appropriate type and quantity of fixing should be
used to ensure that the bracket is mounted
securely. Once the bracket has been secured to
the wall, mount the appliance onto the bracket.
Fig. 9
Fig. 8
IMPORTANT
The vertical flue terminal is 1.0 metre in length
and cannot be cut; therefore it may be necessary
to adjust the height of the appliance to suit or
use a suitable extension.
Connect the vertical flue assembly to the boiler
flue spigot using the 60mm & 100mm clips,
gaskets, & screws (supplied), ensuring the correct
seal is made. The flue support bracket (supplied
with the vertical flue kit) can now be fitted.
If the vertical flue requires extension/s or additional
bend/s, connect the required number of flue
extensions or bends (up to the maximum equivalent
flue length) between the boiler and vertical flue
assembly (see fig. 8).
Ensure that any horizontal sections of the flue
system have a 1° fall back to the boiler (17mm per
1000mm).
NOTE
When cutting an extension to the required length,
you must ensure that the excess is cut from the
plain end of the extension (see fig. 8). Remove any
burrs, and check that any seals are located properly.
You must ensure that the entire flue system is
properly supported and connected.
Vertical flue terminal and accessories
Part No. Description Length
0225725 Vertical flue terminal 1.0 metre
0225770 Pitched roof flashing plate N/A
0225765 Flat roof flashing plate N/A
0225755 350-500 telescopic extension 350mm – 500mm
0225740 500mm extension 500mm
0225745 1000mm extension 1000mm
0225750 2000mm extension 2000mm
0225730 45° bend (pair) N/A
0225735 90° bend N/A
0225760 Wall bracket (4) N/A
Reduction for bends
Bend Reduction in maximum flue length for each bend
45° bend 0.5 metre
90° bend 1.0 metre