Connecting Up Flue - Sime Planet 25 OF Manual De Instrucciones

2.6. 1

Connecting up flue

Fig. 6 refers to the connection of the boilers
"25 OF - 30 OF" to the flue or chimney
through smoke ducts. When making the
connection, in addition to respecting the
dimensions given, you are recommended to
use gas-tight materials capable of resisting
over time mechanical stresses and the
smokes heat.
At any point along the smoke duct, the tem-
perature of the combustion products must
be higher than the dew point. More than a
total of three changes of direction must not
be made, including the inlet connection to
the chimney/flue. For any changes of direc-
tion use only curved pipe lengths.
Fig. 7 shows some applications of draught
terminals that ensure proper expulsion of
the combustion products, in case of
discharge through the wall.
2.7 "25 BFR - 25 BF - 30 BF - 25BFT"
COAXIAL DUCT
The air inlet-smoke outlet assembly, code
8084805, is included in the standard sup-
ply of the appliance complete with mounting
instructions.
2.7. 1 Installation of the screen
The screen is normally supplied together
with boiler version "30 BF". See fig. 8 for
positioning.
108
Fig. 6
ATTENTION: Install the screen only when
the length of the Ø 60/100 coaxial pipe is
less than 1 m.
2.7.2 Coaxial duct accessories
The accessories to be used for this type of
installation and some of the connecting
systems that may be adopted are illustred
in fig. 9.
With the pipe bend included in the kit, the
maximum length of the piping should not
exceed 3 meter. Where the supplemen-
tary bend code 8085601 is used, the
total length of the piping can reach a
KEY
1a-b Coaxial duct kit code 8084805
2 Extension L. 855 code 8084804
3 Vertical extension L. 590
with take-off point code 8086902
4 90° additional bend code 8085601
Fig. 8
maximum of 1.6 meter.
When the vertical extension
8086902 is used, the terminal part of the
pipe must always come out horizontally.
2.7.3 Positioning the
outlet terminals
The outlet terminals for forced-draught
appliances may be located in the external
perimeter walls of the building.
To provide some indications of possible solu-
tions, Table 1 gives the minimum distances
to be observed, with reference to the type
of building shown in fig. 10.
Fig. 7
code
Fig. 9
Fig. 10