Wonderfire Lincoln BR517S, Руководство по установке

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8. FLUE DUCTING INSTALLATION
8.1 The fireplace surround will have to be cut away at the side where the duct
connects to the appliance. A template is supplied to aid accurate cutting. It will be simpler
if the side is cut before assembling the top to the sides. Place the template against the
surround side as shown in figure 18. Mark the shape of the opening on the surround. Cut
the opening.
8.2 Cut the backing plates to length. Note that the appliance end of the backing plate
should abut against the outside face of the fireplace surround side. It does not go inside the
surround.
For corner installations the ends of the plates must be mitred and butted together even
when covered by the elbow front covers. Small children could touch the hot ducting if
there are any gaps between the top horizontal flanges or bottom angled flanges of the
backing plates.
8.3 Measure the length of the duct run between the intersection of the horizontal
and sloping sections of the “Z” coupling (“A” in fig. 19), fan box spigot and, if
applicable, elbows. The ducts must run from within 10mm of the intersection”A” and
enter the fan box spigot or elbow by a minimum of 40mm and a maximum of 70mm.
A bridging tube is supplied to aid manipulation of the ducts while installing. The
swaged end of one duct (the end with the seal) can be cut to allow a gap of up to
125mm to be bridged (see figure 20).
Cut the ducts to suit the installation.
8.4 Align the backing plates so that the centres of the fixing holes are at the height of
the duct centre line drawn on the wall (see section 6.11). Mark the wall through two of
the slotted holes in each backing plate. Usually the best fixing positions will be those
which are closest to the ends of the backing plates.,
Figure 20
Figure 19
Figure 18