Installing The Exhaust Pipe - Baxi Bioflo Installation & Servicing Instructions Manual

For the Installer

2.11 Installing the exhaust pipe

a) Install the exhaust pipe upward to the flue (45° is the ideal angle). Maximum exhaust pipe length 3 m.
Any section of this exhaust line that only rises slightly (up to 30°) or is horizontal is not allowed to
be more than 1 m in length.
b) Avoid 90° bends, 45° bends are better.
c) Make the flue connection at 45° if possible.
d) Do not push the exhaust pipe too far into the flue.
e) Do not seal the exhaust pipe completely into the flue. Connection with
flexible exhaust pipe inlet into the flue. The vacuum fan can cause sound
transmissions that create noise pollution.
f) The entire exhaust line should be sealed (incl. cleaning aperture) because
there can be positive pressure in the exhaust pipe for a short period dur-
ing the starting phase.
g) Always fit exhaust pipes together with the sleeve pointing upwards (small-
er diameter end of stainless steel flue accessory fits exactly onto flue out-
let in FireWIN), so that any condensation flowing back cannot leak out of
the exhaust pipe – Fig. 42.
The parts must be secured with pipe clamps to ensure adequate leak-tight-
ness and stability. Pipelines are not allowed to sag.
h) The entire exhaust line (particularly after 1 m length) should be insulated
in order to prevent or minimise condensation.
i) An additional measuring opening is only allowed to be drilled in the stain-
less steel exhaust pipe using a stainless steel drill bit.
In fully automated pellet feed, the exhaust pipe must be insulated and the delivery and return hose must
be replaced by non-flammable steel pipes in this area.
Energy-saving intake regulators or explosion flaps are not allowed to be installed in the living area.
Comply with the statutory regulations and directives.
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Sleeve
Fig. 42 Stainless steel exhaust pipe