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5.3.
EXTERNAL AIR INTAKE
There MANDATORY be sufficient quantity of air for combustion and re-oxygenation of the room to ensure the device will work properly.
There should therefore be vents letting air in from outside the building and enabling circulation of air for combustion even when the doors
and windows are closed.
•
The air intake must be in a position where it cannot be obstructed.
•
The air intake should communicate with the room in which the device is installed and be protected with a grille.
•
Vents may communicate with adjacent rooms but NOT with garages, kitchens, bathrooms or boiler rooms (FORBIDDEN).
•
Any extractor hoods in the room where the device is installed must NOT operate at the same time as this could cause smoke to
enter the room, even with the fireplace's door closed.
Minimum dimensions
(Picture 13 at page
A – natural convection:
B – forced convection:
* (For a better comfort and corresponding oxygenation of environment, the combustion air can be directly withdrawn at the outside through
a junction (B1) which is to be connected with a flexible pipe (not furnished)for the external air intake. The connection pipe must be flat with
a minimum diameter of (B1
with the outside it must be endowed with a special windbreak.)
MPORTANT: If you do not adopt the solution 1, you are obliged to adopt the solution 2. Otherwise, there is no supply of air
combustion, the product does not work!
6. VENTILATION HOOD OR ADJACENT LOCAL
The product can distribute heated air by natural convection or forced convection by means of a centrifugal fan; therefore, during installation,
it is necessary to establish the type of ventilation or convection to be adopted:
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
By choosing this convection system, it is recommended not to install the electrical fan.
B ) FORCED CONVECTION:
By installing a centrifugal fan, 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 (see
The covering of each product is equipped with 4 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.
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. Please
d)
respect the distance of the convection openings according to the local construction norms;
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 10 at page
22
48):
300 cm
2
150 cm
external air intake for the stack, if present (*B1);
2
150 cm
external air intake for the fan, if present (B2);
2
150 cm
internal air intake for the fan, if present (C);
2
Picture 13 at page
48), a maximum length of 4 m and with no more than 3 bends. If there is a direct connection
Picture 9 at page
47).
Picture 9 at page
47).
47).
FOCOLARE 100 BIFACCIALE
6097700 - IT-EN-DE-FR
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