Unical ALLBIOMIX, Инструкции по установке, использованию и обслуживанию

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27
Tec
hnical f
eatures and dimensions
Inspectionable soot container
with possible condensation drain
Draught limiter/adjuster
3.9.2 - EXHAUST THROUGH ROOF BY MEANS OF TRADITIONAL FLUE
The pellet combustion flue gas can also be discharged using a
traditional pre-existing flue as long it is made to standard (see
UNI 10683).
We will briefly list some of the main features highlighted by the
standard which characterise a good chimney:
- Adequate insulation especially in the outside section exposed
to the atmosphere;
- Constant internal cross-section (there must be no cross-
section constrictions);
- Made with material resistant to high temperatures, to the
action of combustion products and to the corrosive action of
condensation which could be formed;
- Predominantly vertical with deviations no greater than 45°;
It is recommended to provide a solid material and/or condensation
collection chamber which can be inspected through an airtight
door.
It is recommended to abide by that established by standards
UNI 9615 and 9731 for the dimensioning of the chimney cross-
sections and anyhow not to make pipes with a cross-section
less than 100 mm.
If there are larger cross-sections, a steel pipe must be inserted
inside the masonry duct.
The steel pipe must be sufficiently insulated
with high temperature resistant material and
sealed from the outer chimney.