Use and Maintenance Manual model “H17 V LIGHT”
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ENGLISH
3.3 CHIMNEY FLUE
3.4 CHIMNEY STACK
3.5 INSTALLATION OF THE HERMETIC PRODUCT
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When installing the chimney flue, the following
must be applied.
• compliance with EN 1856-1 product standard;
•
it must be installed using materials suitable to
guarantee resistance to normal mechanical and
chemical stress, and have a correct insulation, to
avoid formation of condensate. Therefore, it must
be hermetically insulated;
• it must develop
mainly vertically and it must not be
choked along its length;
•
be correctly spaced using air cavities and
insulated against flammable materials,
•
changes in its direction must be no more than 2
and with an angle not exceeding 45°;
• the indoor portion of the chimney flue must
nonetheless be insulated and it can be inserted in
a cavedium, provided that this complies with the
relevant piping standards;
•
the smoke channel should be connected to the
chimney flue using a “T” joint with an inspectionable
collection chamber (for the collection of fuel residue
and, particularly, condensate).
It is not possible to connect the appliance to a
chimney flue shared with other combustion
appliances or in the presence of hood exhausts.
It is forbidden to use direct wall discharge or
towards closed spaces or any other form of
discharge not planned by current legislation in the
country of installation (e.g.: in Italy, only roof
discharge is permitted)
UNI 10683 standard states that the stack must meet
the following characteristics:
•
the smoke outlet section must be at least
double the inner section of the chimney;
• the stack must be
shaped to prevent
water or snow from penetrating;
• the stack must
be built in such a way that wind
cannot affect the smoke outlet (wind-proof cap);
•
the opening measurement, which is measured
between the lower coverage protective layer
and the lower point of the
smoke outlet section into the atmosphere, must be
outside the back draught area;
• the stack must
be built far from antennas or
satellite dishes and must never be used as a
support.
It is recommended to check safe distances, which
must be observed in the presence of
combustible materials, and the type of insulating
material to be used (such data are made available
on the chimney flue plate).
In the event of installation of a hermetic product,
you can connect it with the piping system by
choosing one of the following:
• smoke discharge (1) and recovery of combustion
air directly from the outside (2).
• smoke discharge (1) and combustion air
canalization (2), taking advantage of its coaxial dis-
charge to expel smoke and draw air in; therefore,
the installation of a grate to recirculate the air in-
side the premises where the product is placed is not
necessary.
For coaxial installation or for drawing air directly
from the outside, it is recommended not to exceed
2.5/3 linear meters, in order to ensure proper
oxygen supply to combustion.
