Sime ESTELLE HE B4 INOX ErP Manual De Uso, Instalación Y Mantenimiento página 89

EN
"TYPE B" installations
The combustion air must be drawn through a permanent open-
ing, which MUST be present in the room where the appliance is
installed and MUST be made in accordance with the standards
and laws in force in the country where the appliance is used.
B23P
The flue is extremely important for the proper operation of the
installed device. If it is not carried out with the appropriate cri-
teria, burner malfunctions and noise amplification may occur, in
addition to the build-up of soot, condensate and encrustations.
A flue must therefore fulfil the following requirements:
– it must be made of waterproof material resistant to the fume
temperatures and to the relative condensate build-up
– it must have sufficient mechanical resistance and low ther-
mal conductivity
– it must be perfectly sealed to prevent cooling of the flue itself
– it must be as vertical as possible, and the end part must have
a static suction unit that ensures efficient and constant expul-
sion of combustion by-products
– in order to prevent wind from creating pressure zones around
the stack that could prevail on the ascending force of the
burned gases, the discharge outlet must protrude by at least
0,4 m from any structure adjacent to the flue itself (including
the ridge of the roof) within a distance of 8 m
– The flue diameter must not be smaller than that of the boiler
coupling; for flues with square or rectangular cross-section,
the inner section must be increased by 10% with respect to
the section of the boiler coupling.
"TYPE C" installations
In order to use "Type C" installations, the boilers must be con-
verted using the kit code 8098816 (1).
C23P
1
Kit code 8098816
1
Ø 80 mm fitting (to be supplied by the installer)
2
Fig. 32
Condensate drainage coupling
3
Inspection cap
4
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
CAUTION
The maximum allowed length (L) of the air intake pipe
with Ø80 mm diameter must not exceed 7,0 metres +
2 x 90° elbows.
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 boiler body, so as to avoid corrosion 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.
L
2
4
3
Fig. 33
89