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2. Exhaust flue with individual exhaust system
combustion air from inside the room
(Type B23)
Only use this kind of installation in rooms without
pollution of the combustion air and without relevant
pressure differences to the outside. Otherwise use
type C.
3. Exhaust flue with individual exhaust system
combustion air from outside the room
(Type C)
Combustion air and exhaust air are diverted through a
temperature stable, concentric tube with a roof or wall
outlet.
Max. length of air and exhaust flue until the concentric
tube with a roof or wall outlet is 6 m each plus two 90°
elbow.
The tube which leads the combustion air to the burner
box must be flexible and easy to remove for
maintenance. Don't use valves and dampers in the
exhaust flue.
novoSchwank L
Max. length
max. number
between heater
of elbows
and roof/wall
(90°)
outlet
6 m
2
Tab. 3: Air/exhaust routing
Fig. 7: Air/exhaust--system, version stainless steel
Ø of
air/exhaust flue
100 mm
4.
Exhaust flue with flue collecting system and
central flue fan
(according to EN 777, Type D)
The whole system consists of max.10 radiant tubes. A
central flue fan collects the exhaust of the several
heaters in a central exhaust tube and diverts it to an
outlet.
If installing systems without individual flue fans of
several heaters it could be necessary to integrate
dampers into the connecting pipes to ensure the
operation and exhaust flue of all heaters.
See technical instruction novoSchwank
with flue collecting system
novoSchwank L
9
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