30
2. For the Installer
2.14 Installing the exhaust pipe
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 fle-
xible exhaust pipe inlet into the flue. The vacuum fan can cause sound
transmissions that create noise pollution.
f) The FireWIN 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 (smal-
ler diameter end of stainless steel flue accessory fits exactly onto flue
outlet in FireWIN), so that any condensation flowing back cannot leak out
of the exhaust pipe – Fig. 40.
The parts must be secured with pipe clamps to ensure adequate leak-
tightness 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.
Information!
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.
Attention!
Energy-saving intake regulators or explosion flaps are not allowed to be installed in the living area.
Comply with the statutory regulations and directives.
Fig. 40 Stainless steel exhaust pipe
Sleeve
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