EdilKamin LAGUNA M 25 Installation, Utilisation Et Entretien page 56

AIR INTAKE
It is indispensable for the premises where the
boiler is located to have an air intake section of
at least 80 cm² to guarantee consumed air reset
for combustion.
Alternatively, you can take air for the boiler di-
rectly from outside using a steel extension with
a pipe with a 6 cm diameter or located on the
back of the boiler itself.
The pipe must be less than 1 metre long and
not have bends.
CONNECTION TO CHIMNEY FLUE
The boiler works with forced draft, therefore the
smoke extractor emits combustion air inside the
chamber to enable combustion. It is therefore
necessary to guarantee correct evacuation of
the smoke connecting the boiler to a smoke flue
that guarantees natural draft.
For connection to a smoke flue, local and na-
tional standards must be complied with.
A smoke flue must meet the following require-
ments:
• It must be in waterproof material and resistant
to the temperature of the smoke and relevant
condensate.
• It must have sufficient mechanical strength
and weak thermal conductivity.
• It must be perfectly sealed to avoid cooling of
the flue.
• Its progression must be as vertical as possi-
ble.
• It must be adequately distanced from combus-
tible or flammable materials using air cavities or
appropriate insulation.
• New or old chimneys built without compliance
with specifications should be recovered by pip-
ing the chimney. You should therefore introduce
a metal flue inside the existing chimney and fill
with adequate insulation.
• The chimney flue must have a piping diameter
of no less than the boiler outlet joint.
• There must be a preferably circular internal
section; the square or rectangular section must
have rounded corners with a radius of no less
than 20 mm.
• It must have a constant, free, independent,
and no choking internal section.
INSTALLATION
• The smoke tubes must not cross premises in
which installation of the combustion appliances
is forbidden.
• Flexible tubing is not allowed.
• A "T" tube must be installed immediately after
the boiler outlet to periodically clean residue.
• A collective smoke pipe cannot be used.
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