Unical STILE 27, Инструкция по установке, техническому обслуживанию и эксплуатации

Страница: 19 / 60

Installation instructions
1 9
3.5.2 - 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 up 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;
- Predominately 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-
section and anyhow not to make pipes with a diameter 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.
fig. 8
Inspectionable soot
container with possible
condensation drain