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2.
For the Installer
2.4.16 Installing the exhaust pipe
Comply with minimum clearanc
es in section 2.4.4!
a) Install the exhaust pipe upward to the flue (45° is the ideal angle). Maximum exhaust pipe length 3 m.
Information!
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 Induced draught fan can cause sound transmissions that create noise pollution.
f) The BioWIN 2 is a low-pressure boiler and this means that the flue gas system needs to meet the „N1“ seal
integrity requirement according to EN 1856-1 and EN1856-2. Please ensure a sufficient immersion depth when
fitting (e.g. when using Windhager stainless steel flue systems).
g) Always fit exhaust pipes together with the sleeve pointing upwards (smaller diameter end of stainless steel
flue accessory fits exactly onto flue outlet in BioWIN 2), so that any condensation flowing back cannot leak out
of the exhaust pipe.
The parts must be secured with pipe clamps to ensure adequate leaktightness and stability. Pipelines are not
allowed to sag.
h) The entire exhaust line has to be insulated to a thickness of at least 2 cm.
i) The entire exhaust line has to be able to be cleaned, i.e. appropriate cleaning openings [1] have to be included.
The first cleaning opening has to be in the first bend of the exhaust pipe.
j) Measuring opening for exhaust measurement: The measuring opening must be outside the boiler, so use a
pipe with a measuring opening (AZB 025) or use a stainless steel drill to make a hole 11 mm in diameter in the
stainless steel exhaust pipe.
Information!
Access must be enabled to the water tank (for checking and refilling) and to the blower motor (for
service and maintenance work). Therefore do not lay the exhaust pipe directly over the top.
Attention!
The configuration of the exhaust line must comply with technical fire protection requirements in
accordance with the applicable regulations, standards and guidelines – see section 2.4.4. Minimum
service clearances for fire protection, cleaning and maintenance.