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The installation of the smoke ducts must be made so that they are airtight to smoke during operation and that the formation of any condensation is
limited to avoid that it flows towards the equipment.
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It is not recommended to install in horizontals sections. The maximum horizontal section allowed is 1 m (with an incline of 3%)
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In the case of installations where the flue exit through a ceiling or walls it should be in the same plane with respect to the equipment smoke exit,
EN
the change of direction must be made by open bends not higher than 45º.
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In any case, smoke ducts must be airtight to combustion products and to the condensations and they must also be thermal insulated if they pass
outside the installation room.
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It is forbidden to install flues with a downward slope.
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The smoke duct must allow the cleaning of the soot or be easily accessible.
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The duct section must be constant.
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It is forbidden to pass any others air ducts or pipes inside the smoke channels. It is not allowed to fit devices to control manually the draw in
equipments with a forced draw.
All boilers that send smoke to the exterior should have their own chimney. Never
use the same chimney for several equipments at the same time.
It is necessary to install a "T" with hermetic cover at the boiler exit smoke that
allows the regular inspection or the heavy dust discharge.
Drawing shows the basic requirements for the chimney installation of a boiler:
The flue must be away from flammable or combustible materials through an
appropriate insulation or an air chamber. Inside it, it is forbidden the pipes of
installations or air abduction channels. It is also prohibited to do mobile or fixed
openings for connecting other different equipments.
The lack of sealing of the connection may cause the malfunction of the equipment.
In drawing you can see the requirements for a correct installation.
INSTALLATION, OPERATING AND SERVICING INSTRUCTIONS
Minimum heig 5m
42
D8
Minimum heig 5m
HYDROBOREAL