White
terminal
tube
Wall plate
unpainted
Black
terminal
collar
Wall plate
painted
2.16 ASSEMBLING THE FLUE
Flue terminals or extension ducts may be cut to shorter lengths
if required. When cutting a duct ensure it is square by marking
the length all the way around and only cut back the plain end.
When cutting concentric duct it is important that the inner duct is
maintained at 20mm longer than the outer duct to allow correct
connection of the ducts. Care should be taken to support the
inner duct when cutting the ue.
Note. Horizontal ue runs must be angled down between
1.5
o
- 3
o
towards the boiler to allow the condensate to drain.
For this reason it is recommended that a support bracket is
used for every 1m of extension pipe.
RF2548
Vertical
terminal
Weather colla
r
flat (shown)
or pitched
Care must be taken when assembling ues, not to damage
the seals.
See below for ue assembly examples.
Cut the white terminal tube to the correct length and
ensure the painted wall plate is pushed hard up to the
black terminal collar when tted.
Important. There should be NO white terminal tube
visible when viewed from the outside.
22
Installation & Servicing
SECTION 2 - INSTALLATION
FLUE OUTLET
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