VOKERA Unica i28 User Instructions - page 16
14
4.5 FITTING THE FLUE
The top flue outlet permits both horizontal and vertical flue ap
-
plications to be considered, alternatively, the Vokèra twin flue
system can be utilised if longer flue runs are required.
4.5.1 CONCENTRIC HORIZONTAL FLUE
(For concentric vertical fl
ue, see 4.5.2).
(For twin flue applications, see 4.5.3).
The appliance can be used with either the Vokèra condensing
60/100mm concentric flue system or the optional 80/125mm
concentric flue system.
NOTE
These instructions relate
only
to the Vokèra condensing
60/100mm concentric flue system. For specific details on the
installation of the 80/125mm concentric flue system please refer
to the instructions supplied. The appliance flue outlet elbow can
be rotated through 360º on its vertical axis. In addition the flue
may be extended from the outlet elbow in the horizontal plane
(see 2.9). A reduction must also be made to the maximum length
(see table below) when additional bends are used.
Reduction for additional bends
Bend
Reduction in maximum flue length for each bend
45º bend 1.0 metre (60/100) - 1.0 metre (80/125)
90º bend 1.0 metre (60/100) - 1.5 metre (80/125)
Horizontal flue terminals and accessories
Part No.
Description
Length
29450120 Horizontal flue kit
900 mm
29450121 Telescopic flue kit
455/630 mm
522
Plume management kit
1370 mm
29450123 90-degree bend
N/A
29450124 45-degree bends (pair)
N/A
29450125 500mm extension
500 mm
29450126 1000mm extension
1000 mm
29450127 2000m extension
2000 mm
29450128 Telescopic extension
372/519 mm
529
Wall bracket pack (5)
208mm
Using the template provided, mark and drill a 125mm hole for
the passage of the flue pipe. The hole should be drilled to ensure
any condense fluid that forms, is allowed to drain back to the
appliance (see fig. 12-14). 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. 15
FITTING THE HORIZONTAL FLUE KIT
Carefully measure the distance from the centre of the appliance
flue outlet to the edge of the finished outside wall (dimension
X). Add 65mm to dimension X to give you Dimension Y (see
fig 16). Measure dimension Y from the terminal end of the con
-
centric flue pipe and cut off the excess ensuring any burrs are
removed. Pass the concentric flue pipe through the previously
drilled hole. Fit the flue bend to the boiler flue outlet and insert
the concentric flue pipe into the flue bend ensuring the correct
seal is made.
Using the clamp, gasket, and screws supplied,
secure the flue bend to the appliance flue spigot.
NOTE
Fit the internal (white) trim to the flue assembly prior to con
-
necting the flue pipe to the bend.
You must ensure that the entire flue system is properly sup
-
ported and connected. Seal the flue assembly to the wall using
cement or a suitable alternative that will provide satisfactory
weatherproofing. The exterior trim can now be fitted.
Terminal or
extension
Outer clamps