75
exceed 3 meter.
The diagrams in fig. 9 illustrate a number of
examples of different coaxial outlets.
2.8.1 Coaxial flue diaphragm
The boiler is supplied as standard with a ø
81,0 diaphragm.
For C12-C42 discharge configurations:
install the diaphragm only when the length
of the coaxial duct is below 1 meter. For
C32 discharge configurations: use the
diaphragm in accordance with the instruc-
tions provided in figure 10.
2.9
“25 BF TS - 30 BF TS”
SEPARATE PIPES
When installing the pipes, follow closely
the requirements of the current stan-
dards, as well as the following practical
pointers:
– With direct intake from outside, when
the pipe is longer than 1 m, you are
recommended to insulate the piping so
as to prevent formation of dew on the
outside of the piping during particularly
hard periods of the year.
– With the outlet pipe outside the building
or in cold indoor environments, insulation
Fig. 9
x + y = max 3 m
max 3 m
Fig. 10
For C32 discharge configurations: use the diaphragm as specified
below, taking into account the length of the duct and avoiding bends:
Installations with vetrical Installations with vertical condensation
extension L. 200 code 8086908 collector code 8092803
Diaphragm Without Diaphragm Without
ø 81 diaphragm ø 81 diaphragm
L min = 1,3 m L min = 2,5 m L min = 1,3 m L min = 2 m
L max = 2,5 m L max = 5 m L max = 2 m L max = 4 m
KEY
1 Coaxial flue kit L. 810 code 8084813
2 a Extension L. 1000 code 8096103
2 b Extension L. 500 code 8096102
3 Vertical extension L. 200 code 8086908
4 Additional 90° curve code 8095801
6 Articulated tile code 8091300
7 Roof outlet terminal L. 1284 code 8091200
8 Vertical condensation collector L. 200 cód. 8092803
IMPORTANT:
– Each additional 90° curve installed
reduces the available length by 0.90
metres.
– Each additional 45° curve installed
reduces the available length by 0.45
metres.
– It is advisable to assemble the con-
densation collector (8) on vertical
segments exceeding 2 metres in
length and to limit maximum length
to 4 metres.
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