FTA Manual.pdf - Industrial Air

Installation / System
63 9810.0156 – Rev.04 –12/01/2007
Interior diameters, heights, heat conduction
resistances and interior faces of chimney systems must be
in the dimensions , fitting to aim of waste gases, which
enables to throw out the chimney gases in every kind of
operation conditions and high pressures in dangerous
levels according to living places must not occur.
There must be at least 20 cm distance between
chimney gas lines and windows in the building.
It is recommended to be consulted to an authorized
establishment about chimney cleaning.
Total resistance value is equal to ∑ζ = 2,2 (sehiedel
diagram) or to 2,5 (plewa diagrams) for direction alteration,
entrance, shape and speed alterations.
∑ζ=2,2 total resistance value is equal to loses of flue
with 2 unit 90º elbow, fixing to chimney with 10º slant, and
an excessive large boiler smoke outlet causing velocity
increase.
45° slant is recommended for inlet of the chimney
gases into the chimney system.
Boiler back pressure and boiler draught
necessity vaules (Pw) must be taken into
consideration at chimney calculations. In case of
usage of wrong calculated chimneys according to
these values or in case of usage of chimneys that has
unsuitable materials, inner boiler and cover insualation
damages (because of wrong burner settings,
overloading, temperature) the device will be out of
warranty
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