Ventilation And Aeration Of The Installation Premises; Ventilation Hood Or Adjacent Local - LA NORDICA FOCOLARI IN GHISA Manuel Utilisateur

spaces foreseen for the circulation of air indicated in
In this way, the following targets are achieved:
• a greater safety
• an increase of the heat created by air circulation around the device
• a better working of the appliance
The heat vent grating
always be installed since its function is that of letting the heat collected within the hood (overpressure) flow out into the room.

VENTILATION AND AERATION OF THE INsTALLATION PREMIsEs

As the product draw their combustion air from the place of installation, it is MANDATORY that in the place itself, a sufficient quantity of air is
introduced. If windows and doors are airtight (e.g. built according to energy saving criteria), it is possible that the fresh air intake is no longer
guaranteed and this jeopardises the draught of the appliance and your health and safety.
IMPORTANT: For a better comfort and corresponding oxygenation of environment, the combustion air can be directly withdrawn at the
outside through a junction which is to be connected with a flexible pipe. The connection pipe (not furnished) must be flat with a minimum
Picture 11, a maximum length of 4 m and with no more than 3 bends. If there is a direct connection with the outside it must be
diameter of
endowed with a special windbreak.
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 inlets must meet the following requirements:
• they must be protected with grids, metal mesh, etc., but without reducing the net useful section;
• they must be made so as to make the maintenance operations possible;
• positioned so that they cannot be obstructed;
• 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.
The clean and non-contaminated air flow can also be obtained from a room adjacent to that of installation (indirect aeration and ventilation),
as long as the flow takes place freely through permanent openings communicating with the outside.
The adjacent room cannot be used as a garage, or to store combustible material or for any other activity with a fire hazard, bathroom, bedroom
or common room of the building.
Ventilation is deemed sufficient when the room is equipped with air inlets according to the table:
Appliance categories
Fireplaces
Stoves
Cookers
Installation in premises with fire hazards is forbidden. Installation in residential premises in which, in any case, the depression
measured during installation between the internal and external environment is greater than 4 Pa - reference for Italy according to
standard UNI10683.
All national, regional, provincial and municipal laws and standards in force in the country where the appliance is installed must be complied
with.

VENTILATION HOOD OR ADJACENT LOCAL

In order to distribute the heating in the environment or carry it to an adjacent room it is possible to install a galvanized steel covering
(OPTIONAL) on the external cast-iron body of the same appliance.
The covering is provided with 4 outlets with a 150 mm diameter to connect the heat resistant pipes. This covering is fixed to the fireplace
through special screws:
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, (see
c) Each pipe must not exceed 2m of length for natural ventilation and 4m for forced ventilation; it must be insulated with insulating
materials to avoid noise and dispersion of heat.
Picture 7
Top: Minimum opening 1000 cm
Base: Minimum opening 750 cm
(Picture 7 pos. 6) has to be installed on the upper part of the hood at about 20 cm from the roof. This must
Reference standard
UNI EN 13229
UNI EN 13240
UNI EN 12815
- Picture 11 represent the minimum requirements:
2
2
Percentage of the
net opening section with respect to
the appliance fumes outlet section
50%
50%
50%
Picture
ENgLIsH
Minimum net opening value of
the ventilation duct
200 cm²
100 cm²
100 cm²
10).
25