9
Compact
SECTION 4 INSTALLATION
4.1 DELIVERY
The appliance is delivered in a heavy-duty card-
board carton. Lay the carton on the floor with the
writing the correct way up.
4.2 CONTENTS
Contained within the carton is:
● the boiler
● the wall mounting bracket
● an accessories pack containing service valves
and sealing washers
● the instructions pack containing installation &
servicing instructions, appliance logbook, user
instructions, guarantee registration card, 3 amp
fuse and flue restrictor ring.
4.3 UNPACKING
At the top of the carton pull both sides open – do
not use a knife – unfold the rest of the carton from
around the appliance, carefully remove all
protective packaging from the appliance, and lay
the accessories etc. to one side. Protective gloves
should be used to lift the appliance, the appliance
back-frame should be used for lifting points.
4.4 PREPARATION FOR MOUNTING THE
APPLIANCE
The appliance should be mounted on a smooth,
non-combustible, vertical surface, which must be
capable of supporting the full weight of the
appliance. Care should be exercised when
determining the position of the appliance with
respect to hidden obstructions such as pipes,
cables, etc.
When the position of the appliance has been
decided – using the template supplied – carefully
mark the position of the wall bracket (fig. 7) and
flue-hole (if applicable).
4.4.1 IMPORTANT
There are three hole types set out on the
appliance template:
● type 1 should be used in conjunction with
the telescopic flue kits (part no. 0225705 &
0225710)
● type 2 should be used in conjunction with
standard horizontal flue kit (part no.
2359029)
● type 3 should be used in conjunction with
the telescopic rear flue kits (part no.
0225905 & 0225910).
4.4.2 FLUE RESTRICTOR RING
To ensure maximum efficiency of the appliance,
it may be necessary to fit one of the supplied flue
restrictor rings to the appliance flue outlet.
4.5 FITTING THE FLUE
The top flue outlet permits both horizontal and
vertical flue applications to be considered,
alternatively, the Vokera twin flue system can be
utilised if longer flue runs are required.
4.5.1 CONCENTRIC HORIZONTAL FLUE
(For concentric vertical flue, see section 4.5.2).
(For twin flue applications, see section 4.5.3).
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 section 4.4.2), however if
the flue is to be extended or additional bends are
to be fitted, the standard horizontal flue kit (part
no. 2359029) must be used. A reduction must
also be made to the maximum length (see table)
when additional bends are used.
Bend Reduction in maximum flue length for each bend
45º bend 0.5 metre
90º bend 0.85 metre
Using the template provided (see section 4.4.1),
mark and drill a 125 mm hole for the passage of
the flue pipe. The hole should have a 1º drop
from the boiler to outside, to eliminate the
possibility of rainwater entering the appliance via
the flue.
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.
Horizontal flue terminals and accessories
Part No. Description Min-Max Length
0225705 Standard telescopic flue 380 mm – 600 mm
(Dimension ‘X’)
0225710 Extended telescopic flue 600 mm – 920 mm
(Dimension ‘X’)
2359029 Horizontal flue kit
For use with add. Bends 833 mm
& extensions (dimension ‘X’)
2359069 750 mm extension 750 mm
2359079 1500 mm extension 1500 mm
2359049 45º bend (pair) N/A
2359059 90º bend N/A
0225760 Wall bracket (5) N/A
Total flue length Restrictor required
Less than 0.85 metre
Less than 2 metre
Less than 3 metre
Less than 4.25 metre
42 mm diameter
44 mm diameter
46 mm diameter
Not installed
Compact 24
Compact 28
Total flue length Restrictor required
Less than 0.85 metre
Less than 1.70 metre
Less than 2.70 metre
Less than 3.40 metre
45 mm diameter
47 mm diameter
49 mm diameter
Not installed
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