EN
6.9
Smoke outlet and combustion air inlet
Sime ESTELLE HE ErP are classified as "Type B" (B23P) and ES-
and 4 ErP models can be converted, during the
TELLE HE 3 ErP
installation phase, to "Type C" (C23P) by applying a specific ac-
cessory.
The fume discharge and combustion air intake system must be
made as explained below.
A
Description
A (mm)
B (mm)
C (mm)
Øi - inner diameter (mm)
d
IT IS FORBIDDEN
– Do not block or reduce the size of the air vents of the
place of installation or the appliance.
"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
– it must have sufficient mechanical resistance and low ther-
– it must be perfectly sealed to prevent cooling of the flue itself
B
– it must be as vertical as possible, and the end part must have
– in order to prevent wind from creating pressure zones around
Øi
– The flue diameter must not be smaller than that of the boiler
C
"TYPE C" installations
This type of installation can only be made with ESTELLE HE 3 ErP
and ESTELLE HE 4 ErP boilers converted with the accessories kit
code 8098816 to be purchased separately from the boiler.
Fig. 27
ESTELLE HE ErP
230
50
505
130
m
m
Fig. 28
temperatures and to the relative condensate build-up
mal conductivity
a static suction unit that ensures efficient and constant expul-
sion of combustion by-products
the stack that could prevail on the ascending force of the
burned gases, the discharge outlet must protrude by at least
0,4m from any structure adjacent to the flue itself (including
the ridge of the roof) within a distance of 8 m
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.
C23P
1
2
Kit code 8098816
1
Ø80 mm fitting (to be arranged by the installer)
2
Condensate drainage coupling
3
Inspection cap
4
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.
CAUTION
Only use original Sime accessories and make sure that
the connection is made correctly, as explained in the
instructions supplied with the accessories.
4
3
L
Fig. 29
83