66
2.7.3
Accessories ø 80/125 (fig. 6)
The ø 80/125 coaxial duct is supplied on
request in a kit code 8084830 complete
with assembly instructions.
With the curve supplied in the kit, the maxi-
mum horizontal length of the duct must be
no more than 6 metres.
The diagrams in fig. 6 show some examples
of the different types of ø 80/125 coaxial
discharge modalities.
2.8
INSTALLATION OF SEPARATE
DUCTS (vers. “BF”)
When installing, the provisions of the laws
in force must be adhered to, as well as cer-
tain practical suggestions:
– With aspiration directly from outside,
when the duct is longer than 1 metre, it
is advisable to insulate the said duct in
order to avoid the formation of dew on
the outside of the pipe when the weather
is particularly cold.
– With ducts with discharge positioned
outside the building, or in cold environ-
ments, insulation is necessary to avoid
difficulty in starting the burner. In these
cases, a condensation system on the
pipes must be provided for.
– If the pipe passes through inflammable
walls, insulate the stretch of the fumes
discharge pipe that passes through the
wall with rounded glass wool 30 mm
C12
C32
C42
2
7
6
4
1
2
min. 4 m - max 7 m
8
x
y
x + y = min. 3,5 m/max 6 m
"25"
x + y = min. 3,0 m/max 6 m
"30-35"
5
5
3 8
2
1
1
min. 3,5 m - max 6 m
"25"
min. 3,0 m - max 6 m
"30-35"
2
Fig. 6
KEY
1
Coaxial duct kit code 8084830
2
Extension L. 1000 code 8096130
3
---
4a
Additional 90° curve code 8095820
4b
Additional 45° curve code 8095920
5
Adapter for 80/125 code 8093120
6
Tile for joint code 8091300
7
Terminal for roof exit L. 1284 code 8091200
8
Vertical condensation collector L. 200 code 8092803
IMPORTANT:
– Each additional 90° curve installed reduces the available length by 1.0 metres.
– Each additional 45° curve installed reduces the available length by 0.80 metres.
– The insertion of the condensation collector (8) is obligatory in C32 discharge type.
– The insertion of the condensation collector (8) is obligatory in C42 discharge type.
x + y = min. 3,0 m/max 6,0 m for
“25/55”
x + y = min. 3,5 m/max 6,0 m for
“30/55”
min. 3,0 m - max 6,0 m for
“25/55”
min. 3,5 m - max 6,0 m for
“30/55”
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