Air Inlet; Chimney Cap - Ferroli DIADEMA Manual De Instalación, Uso Y Mantenimiento

2.3 Air inlet

The stove air inlet pipe or intake is located at the back and is round and 50 mm in diameter.
A quantity of air at least equal to that necessary for combustion must flow in the room where the stove is installed;
therefore the combustion air necessary to ensure correct operation of the stove must be drawn:
from the room, provided there is a wall air inlet near the stove, communicating with the outside and of minimum
►
area 100 cm² suitably protected externally by a grille and positioned so as to not be accidentally obstructed;
or with direct connection to the outside with an appropriate pipe having a minimum internal diameter of 50 mm
►
and maximum length of 1.5 m, provided with antiwind protection at the end (down bend).
The air inflow can also be obtained from a room adjoining that of installation, provided the flow can occur freely
through permanent openings to the outside; the room must not be used as a garage, for storing combustible
materials or for activities with fire risk.
2.4 Fume exhaust
The fumes can be exhausted through a connection to a conventional flue or an external duct with double wall or
insulated pipe.
The fume exhaust connections must guarantee a minimum draught of 10 Pa so that the evacuation of fumes is
assured in case of a temporary power failure.
- The installer must check the efficiency and state of the flue and its conformity with the
local, national and European regulations.
- Certified pipes and connections with adequate seals guaranteeing their tightness must be used.
- In case of fire, shut down the stove, promptly call the fire department, and avoid continual attempts
to extinguish it.
- Clean the flue and respective connection at least once a year.
2.4.1Types of installation
Listed below are definitions and requirements for correct installation of an exhaust flue in accordance with Italian
Standard UNI10683:
FLUE : a vertical duct for collecting and expelling, at an appropriate height
from ground, the fumes coming from a single unit and, where permitted,
more than than one.
FLUE technical requirements : it must be fumetight, isolated and insulated
depending on its use;
- it must have a mainly vertical path with axis deviation < 45°;
- it must be at a suitable distance from flammable materials with insulation
or air gap;
- it must preferably have a constant, free and independent round internal
section;
- it is advisable for the flue to have an inspectionable chamber for the
collection of solid materials
- and any condensate, placed under the beginning of the fume duct.
FLUE CONNECTION or DUCT: duct or connection element between the
unit and flue for evacuation of fumes.
DUCT technical requirements: - it must not cross rooms in which the
installation of combustion units is not allowed;
- flexible metal tubes or fibre cement pipes are prohibited;
- the use of counter-sloping elements is prohibited;
- horizontal sections must have an upward slope of at least 3°;
- the length of the horizontal section must be minimal and not more than 3 m;
- there must not be more than 3 changes of direction, without the T union;
- with change of direction > 90° a max. of 2 bends can be used with length in horizontal projection not exceeding 2 m.
- the fume duct must have a constant section and allow the recovery of soot.
CHIMNEY CAP : a device placed on the top of the flue to facilitate the dispersion of fumes into the atmosphere.
CHIMNEY CAP technical requirements : it must have a section equivalent to that of the flue;
- it must have a useful section not less than double the internal section of the flue;
- it must prevent the entry of rain and foreign bodies and ensure the discharge of fumes in any
atmospheric condition;
- it must ensure an adequate dilution of fumes and be positioned outside the backflow area;
- it must be without mechanical means of suction.
The direct discharge of fumes must take place on the roof and not towards closed spaces
( even open air ).
Min. distance 0.2 m
Distanza min 0.2m
39
Antiwind
Comignolo
grille
antivento
Canna
fumaria
Flue
Flue
from 10 to 20mm
Raccordo
connection
fumi
Camera
Inspectionable
ispezionabile
chamber
Presa d'aria
Ext. air inlet
esterna
min.100 cm 2
min.100 cm
DIADEMA
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