LA NORDICA MARLENA 5.0 Manuel Utilisateur page 28

FOR CORRECT APPLIANCE OPERATION, IT IS ESSENTIAL THAT SUFFICIENT AIR FOR COMBUSTION IS
INTRODUCED INTO THE PLACE OF INSTALLATION (see paragraph VENTILATION AND AERATION OF THE
INSTALLATION PREMISES).
CONNECTING A FIREPLACE OR OPEN HEARTH TO THE FLUE
The flue gas channel is the stretch of piping which connects the product to the flue. In the connection, these simple but extremely
important principles must be respected:
• UNDER NO CIRCUMSTANCES USE A FLUE GAS CHANNEL WITH A DIAMETER LESS THAN THAT OF THE EXHAUST
CLAMP WITH WHICH THE PRODUCT IS EQUIPPED;
• EACH METRE OF THE HORIzONTAL STRETCH OF THE FLUE GAS CHANNEL CAUSES A SLIGHT LOSS OF HEAD WHICH
MUST BE COMPENSATED IF NECESSARY BY ELEVATING THE FLUE;
• THE HORIzONTAL STRETCH MUST NEVER EXCEED 2 METRES (UNI 10683);
• 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IMPORTANT: For a better comfort and corresponding oxygenation of environment, the combustion air can be directly withdrawn at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 6, 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.
28
Reference standard net opening section with respect to
the appliance fumes outlet section
UNI EN 13229
UNI EN 13240
UNI EN 12815
Percentage of the
50%
50%
50%
ENGLISH
Minimum net opening value of
the ventilation duct
200 cm²
100 cm²
100 cm²