79
EN
m
CAUTION
The maximum allowed length
(L)
of the air intake pipe
with Ø80 mm diameter must not exceed 7,0
2 x 90° elbows.
m
CAUTION
Only use original
Sime
accessories and make sure that
the connection is made correctly, as explained in the
instructions supplied with the accessories.
m
WARNINGS
– We recommend using a smoke duct made from al-
uminium, plastic or stainless steel, provided that it
complies with the regulations in form. The material
should be suitably resistant to high temperatures
and condensation. The condensation liquid COMING
FROM THE FLUE must be drained before it enters
the cast iron thermal unit body so as to avoid corro-
sion or OBSTRUCTIONS.
– Outlet ducts which are not isolated are a potential
source of danger.
– The flue pipe must be provided with a condensate
outlet and must ensure the minimum drop in pres-
sure set by current regulations, considering pres-
sure to be "zero" at the connection with the duct.
– The flue must be sized correctly for condensing
thermal units. Inadequate or incorrectly sized flues
can cause alter the combustion parameters and
generate noise.
– It is recommended that a condensate neutraliser be
installed before discharging it into the waste water
drain.
– Ensure that the duct and condensate outlet pipes
have an angle of at least 3% towards the neutraliser
or the drain.
– Mount an adequate filter to prevent dust or dirt from
being drawn in.
6.11 Condensate outlet/collection
NC
Fig. 40
m
CAUTION
– The condensate outlet duct must be airtight, suita-
bly sized to that of the siphon and must not be re-
stricted at any point.
– The condensate outlet must be constructed in full
compliance of the National or Local regulations in
force.
– It is recommended that a condensate neutralising
unit be provided and the pipework should have a
downward angle of at least 3%.
– Before commissioning the appliance, fill the siphon
with water.
m
CAUTION
The flue condensate discharge pipe
MUST NOT
return
back into the appliance, but must be kept separate
from the thermal unit pipe, in accordance with the
indications of the appliance’s manufacturer and the
laws in force in the country of installation.
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