MCZ Boxsystem 75 FR - Manual (Page 7)

Chapter 2
INSTALLATION AND USE MANUAL
page
7
Theoretical concepts for installation Technical service - MCZ S.p.A. all rights reserved - Reproduction prohibited
IMPORTANT!
•
The installation and assembly must be carried
out by qualified personnel.
• The product must be connected to a chimney flue
or other vertical conduit that can discharge
smoke at the highest point of the house in
compliance with current standards.
• Smoke is generated from burning wood and,
therefore, may dirty adjacent or nearby walls.
• Before installing the product, drill a hole for the
external air outlet.
2.3. EXTERNAL AIR OUTLET
The room where the product is installed must have at least as much air
flow as required by the normal combustion of the appliance and normal
room ventilation. This may occur through permanent openings in the
room walls that lead directly outdoors or to ventilated rooms according
to UNI 10683 REV.
For this purpose, drill a hole on an exterior wall with a minimum free
section of 150 cm² (a 15 cm diameter hole or a 10x15cm rectangle),
protected by an indoor and outdoor grille.
The air intake must also:
•
directly communicate with the installation room;
• be protected by a grille, made of metallic anti-insect mesh or a
suitable protection as long as it does not reduce the minimum
section:
• be installed so as to avoid obstruction;
• in the event of conduits, up to 3.5 ml, increase the section by
about 5%, while for larger sizes increase it by 15%.
Remember that the ventilation grilles always have a cm 2
useful section on one side. When selecting the grille and
hole dimensions, make sure the useful grille section is
greater than or equal to the section required by MCZ for
product operation.
Connecting the air intake directly to the product is not
mandatory but the aforesaid section must guarantee about
50 m³/h of air. See standard UNI10683 REV.
IMPORTANT!
Air flow may also be obtained from a room adjacent
to the installation room as long as this flow occurs
freely through permanent openings that
communicate directly with the outdoors; avoid air
intakes connecting with heating units, garages,
kitchens or bathrooms.