11
Mynute 24m
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.
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 and screws (supplied), ensuring the cor-
rect seal is made. The flue support bracket (sup-
plied with the vertical flue kit) can now be fitted.
If the vertical flue requires extension/s or addi-
tional bend/s, connect the required number of flue
extensions or bends (up to the maximum equiva-
lent flue length) between the boiler and vertical flue
assembly (fig. 8).
NOTE
When cutting an extension to the required length,
you must ensure that the excess is cut from the
plain end of the extension and that the inner
(60mm) pipe is 7.5mm longer than outer (100mm)
pipe (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.
4.5.3
TWIN FLUE SYSTEM
The Vokera twin flue system enables greater flue
distances to be achieved (see 4.4.2) than that of
a concentric flue system. It can be used for
horizontal or vertical applications, however the
twin flue system must be converted to the dedi-
cated concentric flue kit for termination. It is
essential that the installation of the twin flue
system be carried out in strict accordance with
these instructions.
Fig. 9
465 mm
300 mm
min.
GUIDANCE NOTES ON TWIN FLUE
INSTALLAION
•••••
the flue must have a fall back of 1° back to the
appliance to allow any condensate that may
form in the flue system to drain via the conden-
sate drain. Consideration must also be given to
the fact that there is the possibility of a small
amount of condensate dripping from the terminal
•••••
ensure that the entire flue system is adequately
supported, use at least one bracket for each
extension
•••••
the entire flue system must be adequately insu-
lated to maintain heat within the flue system
thereby reducing the possibility of condensate
production
•••••
as the exhaust outlet pipe can reach very high
temperatures it must be protected to prevent
persons touching the hot surface
•••••
the condensate drain pipe must be connected in
accordance with current Building Regulations or
other such rules in force.
MOUNTING THE BOILER
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.
4.5.3.1 INSTALLATION OF TWIN ADAPTOR KIT (fig. 10)
•••••
Insert the exhaust connection manifold onto the
appliance flue outlet.
•••••
Place the silicone seal (supplied with twin adapter
kit) over the rim of the exhaust connection
manifold.
•••••
Remove the required blanking plate (located to
the left and right of the appliance flue outlet) and
- using the same screws - install the air baffle.
•••••
Using the hole in the exhaust connection mani-
fold as a guide, drill a 3mm hole in the appliance
flue spigot and secure the exhaust manifold
connection to the flue spigot using the screw
provided.
Part No.
Description
Length
0225805
Horizontal flue terminal
1000 mm
0225810
Vertical flue terminal
1000 mm
300
Twin adapter kit
N/A
0225770
Pitched roof flashing plate
N/A
0225765
Flat roof flashing plate
N/A
0225815
Condensate drain kit
N/A
0225820
0.25 m extension (pair)
250 mm
0225825
0.5 m extension (pair)
500 mm
0225830
1.0 m extension (pair)
1000 mm
0225835
2.0 m extension (pair)
2000 mm
0225840
45° bend (pair)
N/A
0225845
90° bend (pair)
N/A
0225850
Twin bracket (5)
N/A
0225855
Single bracket (5)
N/A
Twin flue accessories
Bend
Reduction in maximum flue length for each bend
45º bend
1.0 metre
90º bend
1.0 metre
Reduction for additional bends
