Ventilation And Aeration Of The Installation Premises; Canalization Of The Warm Air - LA NORDICA WANDA EVO Manuel Utilisateur

• each bend of the flue gas channel slightly reduces the flue draught which must be compensated if necessary by elevating it suitably;
• The UNI 10683 – ITALY regulation requires that under no circumstances must there be more than 2 bends or variations in direction
including the intake into the flue.
If the user wishes to use the flue as a fireplace or open hearth, it is necessary to seal the hood below the entrance point of the flue gas channel
pos. A Picture 5.
If the flue is then too big (e.g. 30x40cm or 40x50cm), it is necessary to intubate it with a stainless steel tube with a diameter of at least 200mm,
pos. B, taking care to close the remaining spaces between the pipe and the flue immediately under the chimney pot pos. C.

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IMPORTANT: For a better comfort and corresponding oxygenation of environment, the combustion air can be directly withdrawn at the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
diameter of Picture 7 a maximum length of 3 m and with no more than 3 bends. If there is a direct connection with the outside it must be
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.

CANALIZATION OF THE WARM AIR

The heat distribution will take place through the ventilation of the installation environment, or of the adjacent room by the connection in the
back of heat resistant ventilation pipes.
Therefore, during installation, it is necessary to establish the type of ventilation or convection to be adopted
Configuration A - Ventilation:
Warm air output ONLY from the front side of the appliance: do NOT remove the semi-blanks
a)
b) Adjust through the register C
Configuration B - Ventilation and CANALIZATION:
a) Warm air output from the front and rear side of the appliance: REMOVE the semi-blanks
b) Perform the drilling on the walls to allow the passage and the application of the (fire-resistant) hoses equipped with related openings.
c) Fasten the pipes by means of clamps to the related collars and openings.
d) Each pipe must not exceed 4 m for forced ventilation, and has to be insulated with insulating materials to avoid noise and loss of heat.
e) 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
respect the distance of the convection openings according to the local construction norms.
f ) 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 6
28
Reference standard
UNI EN 13229
UNI EN 13240
UNI EN 12815
(Picture 7) the warm air output only from the front side of the appliance.
- B)
Percentage of the
net opening section with respect to
the appliance fumes outlet section
50%
50%
50%
ENgLIsH
Minimum net opening value of
the ventilation duct
200 cm²
100 cm²
100 cm²
(Picture 6 A - B).
(Picture 6 at page 1 - A).
(Picture 6 - B)