13
ENGLISH
THE FLUE
:
Further to the general prescriptions for the smoke duct
and flue, the flue:
• must only be used for discharging fumes
• must be correctly sized to satisfy the requirements
for fume discharging (EN 13384-1)
• should preferably be insulated, in steel with a
circular internal section. If rectangular, the corners
must have a radius of not less than 20 mm, with a
ratio of the internal dimensions of <1.5
• must normally be at least 1.5 metres in vertical
length
• must have a constant cross section
• must be waterproof and thermally insulated to
ensure a good draw
• preferably provide a collection chamber for
unburnt residues and condensates
• if pre-existing, must be clean, to prevent fire
hazards
• in general, we recommend fitting a tube inside the
existing masonry chimney if its diameter is greater
than 150 mm.
INTUBATED SYSTEM
:
Further to the general prescriptions for the fumes duct
and flue, the intubated system:
• must operate in negative pressure
• must be open to inspection
• must observe local regulations.
THE CHIMNEY POT
• must be anti-downdraught
• must have an internal cross section equivalent to
that of the flue and a fumes outlet at least double
that of the interior of the flue
• for dual flues (which should be spaced at least 2
m apart) the chimney pot receiving the fumes from
the solid fuel appliance or that from the higher
storey, must be at least 50 cm higher than the other
• it must extend beyond the back flow zone (in Italy,
refer to UNI 10683 point 6.5.8.)
• it must allow for maintenance of the chimney.
EXTERNAL AIR INTAKE
In general, we suggest two ways to ensure a proper
flow of combustion air.
Indirect air intake
Install an air outlet at floor level with an effective sur-
face area (net of the screen or other protections) of at
least 80 cm
2
(diameter 10 cm).
To prevent draughts, we recommend installing the
intake behind the cooker or behind a radiator.
Installing it in front of the appliance will create
unpleasant draughts.
Direct air intake*
Install an air intake with an effective size ((net of the
mesh or other protective equipment) that is at least
equal to that of the air intake at the back of the product.
Connect the air intake to the appliance's air intake
with a tube (which may also be flexible). Increase the
diameter of the pipe if the pipe is not smooth: assess
any load loss.
A maximum length of 3 metres is recommended, with
no more than 2 bends depending on the draft of the
flue.
The air maybe drawn from an adjacent room only if:
• the flow is taken from permanent and unobstructed
openings communicating with the outdoors;
• the air pressure in the adjacent room is never
lower than that of the outdoor pressure;
• the adjacent room is not a garage, subject to fire
hazard, a bathroom or a bedroom;
• the adjacent room is not a shared room in the
condominium.
In Italy, UNI 10683 provides that ventilation is sufficient
even if a pressure difference between the outdoors
and indoors of no more than 4 PA is guaranteed (UNI
EN 13384-1). The installer who issues the declaration
of conformity is responsible for ensuring these
conditions.
*Direct connection to the air intake will not make the
product airtight. It is therefore necessary to additionally
ensure an air intake from within the room where the
product is installed (i.e. for glass cleaning).
INSTALLATION
INSTALLER
Содержание KE 90 P
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