MCZ Forma Wood 75 Dx - Manual (Page 7)

5
2-INSTALLATION INSTRUCTIONS
The requirements stipulated in this chapter refer to the regulations of the Italian installation Standard UNI 10683. In any case, always
comply with the regulations in force in the country of installation.
THE OPERATING ENVIRONMENT
For correct operation and even distribution of heat, the closed fireplace must be placed where the air required for combustion can flow, in
accordance with the installation regulations and the standards in force in the country of installation.
The volume of the room should be no less than 30 m 3 .
The air must enter through permanent openings in the walls that reach outside with a minimum section of 100 cm 2 in the case of a non-
Oyster installation, i.e. without external ducted combustion air.
These openings must be made in such a way that it is impossible for them to be obstructed in any way.
Air can also be drawn from adjacent rooms to the one that is to be ventilated, provided they have an external air inlet and are not used as a
bedroom or bathroom or where there is a fire hazard, such as: garages, timber storerooms, warehouses of flammable materials, observing
under all circumstances the provisions of all the applicable standards in force.
• If the product is placed too close to the wall it could cause overheating and damage the plaster (yellowing,
cracking, etc.).
• The product must be connected to a flue or a vertical duct that can expel the smoke at the highest point of the
building.
• The product must be connected to a flue or an internal or external vertical duct in compliance with current
regulations.
• The smoke derives from the combustion of wood essence and if it comes in contact with or close to walls, the
latter can become dirty.
• The external air inlet must be drilled before positioning the product (except in the case of installation with
Oyster technology).
• The floor of the room where the product will be installed must be adequately sized to withstand its weight.
OUTDOOR AIR INLET
Drill a hole on the outer wall close to the product with a minimum section of 100 cm² (13 cm in diameter or 12x12 cm if square, considering
the protective grids), protected by a grid on the outside.
The air inlet must also:
• be protected with grilles, metal mesh, etc. without reducing the net section;
• be positioned in such a way so as not to be obstructed;
• allow maintenance to be performed;
• be directly interconnected with the room where the product is installed;
• in the case of ducting, up to 3.5 linear metres, increase the cross-section by about 5%, whereas for longer ducts, increase it by 15%.
Remember that the ventilation grilles always show the useful section in cm 2 on one side.
When choosing the grille and size of the hole, check that the useful section of the grille is larger or equal to the
section required by the manufacturer for product operation.
IMPORTANT!
The air flow can also be drawn from an adjacent room to that of the room where the product is installed, provided
the air can flow freely through permanent openings interconnected with the outside; it is forbidden to connect to
thermal units, garages, kitchens or bathrooms.
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