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Monoblocco Ghisa 750
6.
VENTILATION HOOD OR ADJACENT LOCAL
The monoblock can distribute heated air by natural convection or forced convection by means of a centrifugal fan
OPTIONAL; therefore, during installation, it is necessary to establish the type of ventilation or convection to
be adopted. (see CHAP. 18)
A) NATURAL CONVECTION:
To ease the natural circulation of air (upward movement due to the
heating of the same) in the external enclosure of the stack, it is necessary
to remove the underlying semi-blanks. (see Picture 11 – B-B1)
By choosing this convection system, it is recommended not to install
the electrical fan. (see Picture 11 - A)
B) FORCED CONVECTION:
By installing a centrifugal fan (see Picture 11 - A), it is possible to
distribute hot air to adjacent rooms by means of ducts with a length up to
4 meters. In this case, do not remove the underlying semi-blanks,
remove only one in Picture 11 pos. B1 for a centrifugal fan.
The covering of each monoblock is equipped with 2 outputs with a
diameter of 150 mm for the connection of pipes resistant to heat.
a) Perform the drilling on the walls or on the existing hood to allow
the passage and the application of the (fire-resistant) hoses with
a 15 cm diameter equipped with related openings.
b) Fasten the pipes by means of clamps to the related collars and
openings, after having removed the semi-blanks caps.
c) Each pipe must not exceed 2 m of length for natural ventilation
and 4 m for forced ventilation, and has to be insulated with
insulating materials to avoid noise and dispersion of heat.
d) The openings have to be positioned at a height not lower than 2
m from the floor to avoid that hot air at output meets people.
e) The lengths of the canalization pipes must have the same length
to avoid the distribution of differing quantities of air from each output. (see Picture 12 - Picture 13)
Picture 12
7.
CONNECTION TO THE FLUE / AIR FOR COMBUSTION (external air intake)
The connection (smoke channel or fitting) to the flue must be carried out using stiff pipes in aluminized steel with a
minimum thickness of 2 mm or in 316 stainless steel with a minimum thickness of 1 mm.
It is FORBIDDEN to use metallic pipes or pipes in asbestos cement since they jeopardize the safety of the
fitting itself, considering that they are subject to tears or breaks resulting in leaks of smoke.
6099751 Rev.04 – EN
B
Picture 13
B1
B
A
Picture 11
B
B
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