
6.2.6
INSTALLATION
OF COAXIAL DUCT
6.2.6.1
Accessories 60/100
The 60/100 coaxial duct is supplied on
request in kit code 8084811.
The diagrams of fig. 5 illustrate some
examples of different types of discharge
modalities allowed and t he maximum
lengths that can be reached.
6.2.6.2
Diaphragm for 60/100
coaxial duct
The boiler is supplied with a diaphragm of
ø 81. Use the diaphragms according to the
indications of fig. 5/a.
6.2.6.3
Accessories ø 80/125
The ø 80 coaxial duct is supplied on reque-
st 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.
6.2.7
INSTALLATION
OF SEPARATE DUCTS
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
2
thick and with a density of 50 kg/m
The maximum total length, which is the
sum of lengths of the aspiration and
discharge pipes, is determined by the loss
of charge of the single accessories inser-
ted and must not result as more than 9.5
mm H
2
O (93.2 Pa).
For the loss of charge
of the accessories, refer to
Table 1
.
C12
C32
C42
3
7
3
2
1
2
4
4
3
x
y
max 5,0 m per vers.
“20”
max 3,5 m per vers.
"25"
max 3,0 m per vers.
"30-35"
x + y = max 5,0 m per vers.
"20"
x + y = max 3,5 m per vers.
"25"
x + y = max 3,0 m per vers.
"30-35"
min 1
,3 m - max 5 m
Fig. 5/a
For discharge types C12, use the diaphragms ø 81.0, supplied with the
boiler, only when the length of the coaxial flue is less than 1 metre
For discharge types C32, use the following diaphragms according to
the length of the flueand without additional curves:
Installations with vertical extension L.200 code 8086908
Installations with vertical condensation collector code 8092803
Diaphragm
Without diaphragm
ø 81
Diaphragm
Without diaphragm
ø 81
L max = 2.5 m
L max = 5 m
L max = 2.5 m
L max = 5 m
* Minimum length of flue L = 1.3 m.
IMPORTANT:
–
Each additional 90° curve installed
reduces the available length by 1.0
metres.
–
Each additional 45° curve installed
reduces the available length by 0.50
metres.
–
The insertion of the condensation
collector is obligatory for vertical
stretches of more than 1.3 metres
KEY
max 3,0 m
3 Extension L. 1000 code 8096103
4
Vertical adapter L. 200 code 8086908
6
Vertical condensation collector L. 200 code 8092803 (not shown)
7
Horizontal flue kit with terminal L. 810 code 8084811
5
Additional 90° bend code 8095801 (not shown)
Additional 45° bend code 8095900 (not shown)
2
Flashing by others
1
Roof outlet terminal L. 1284 code 8091200
Fig. 5
Page 18 of 34
Diaphragms 81.0 dia
NON STANDARD - By special order only.
Содержание sime 30e
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