45
INSTALLATION OF THE VERTICAL ROOF DUCT
• Drill two 3 mm diameter holes
through the air duct (ensure that
the drill does not pierce the inner
flue duct). Fix the duct using the
screws provided.
• Ensure that the flue assembly is
adequately supported along its
entire length.
• Fit the appliance flue outlet
adaptor to the boiler.
• Ensure that any air duct clamps
used are positioned centrally and
fixed to the air duct using the self
tapping screws
supplied.
Connect the flue
assembly to the adaptor
• Slide the 125 mm dia x
88 mm long air duct clamp over
the air duct.
• Line up the air/flue duct with the
adaptor and insert the
spigot of the air/flue duct in to the
adaptor.
• Locate the air duct clamps
ensuring they are positioned
centrally.
• Drill two holes 3 mm Ø through
the air duct through both the air
duct clamps at the most
convienient holes on the air duct
clamps. (Ensure that the drill does
not penetrate the inner flue duct).
Screw the clamps to the air ducts
of the flue assembly, the elbow
and boiler using the sheet metal
screws supplied.
PA
RT
2 CONCENTRIC 80/125
