Supplied By www.heating spares.co Tel. 0161 620 6677
Supplementar
y instructions for flue systems with a
vertical outlet.
V
ertical flue terminal length - max 4000mm (158 in)
min 565 mm (22 in)
IMPOR
TANT: The equivalent flue length must not
exceed 4000mm'
Extension duct
(each extension extends the flue length by up to
767 mm)
90
° Extension Elbow
(Allows an additional bend in the flue and
has an ‘equivalent length’ of 767 mm.) This elbow is mechanically
different from the flanged elbow supplied as standard with the
appliance, but has the same equivalent length of 767mm.
45
° Extension Elbow
Allows an additional bend in the flue and
has an equivalent length of 384 mm.
NOTE: FLUE RESTRICTOR
A flue restrictor (Ref No. VF 90) is supplied with the
boiler kit. This MUST ONLY be fitted to the boiler if the
equivalent vertical flue height is to be 2300 mm or
less. For fitting instructions refer to Fig 22. The flue
restrictor supplied with the appliance must not be used
and should be discarded.
a
)
Read the installation requirements and flue specifications
described in section 3.
b)
Follow the installation pr
ocedure described in section 4 up to
section 4.7 (but making the necessary hole(s) in the
ceiling/roof instead of the wall). Use the following instructions
in place of section 4.7.
c
)
Measure the vertical distance from the top of the boiler case to
the roof line (Fig. 3). Use this length to calculate the number of
extension ducts required.
d)
Star
ting at the boiler, fit the vertical socket, standard duct and
extensions required. Then fit the adaptors. Ensure that they are
in line (level).
e)
Now working fr
om outside fit the balanced flue roof terminal,
ensuring the roof flashing and sealing components are secured
to the roof.
f)
Ensur
e the inner and outer ducts are correctly fitted to the
adaptor.
Note: All the joints should be secur
ed using the self-
tapping screws supplied.
SUPPLEMENT 1
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