Twin Outlets - Beretta EXCLUSIVE GREEN 25 CSI Installation And User Manual

Twin outlets (ø 80)
The split duct can be aimed in the most suitable direction
for installation needs.
The combustion-supporting air intake duct must be
connected to the entrance after having removed the
closing cap, attached with three screws, and having
attached a suitable adaptor.
The fumes outlet duct must be connected to the fumes
outlet after having installed a suitable adaptor.
For the installation process, follow the instructions
supplied with the kit for the specific accessory for
condensation boilers.
The fumes outlet duct must slope by 1% towards the
condensate collector.
The boiler automatically adapts ventilation accord-
ing to the type of installation and the length of the
duct. Do not obstruct or narrow the comburent air
inlet duct in any way.
For an indication of the maximum lengths of every
single pipe, refer to the graphs.
Using longer ducts causes a loss in the power of
the boiler.
150
140
130
120
110
100
90
80
70
60
50
40
30
20
10
0
0 10 20 30 40 50 60 70
LENGTH OF THE INTAKE DUCT (m)
35 C.S.I. - R.S.I.
90
80
70
60
50
40
30
20
10
0
0 10 20 30 40
LENGTH OF THE INTAKE DUCT (m)
16 R.S.I.
80 90 100 110 120 130 140 150 160 170
50 60 70 80 90 100 110
max. length
twin duct (ø 80) (m)
16 R.S.I.
35 R.S.I.
25 C.S.I.
35 C.S.I.
Rectilinear length means without bends, outlet ends
and connections.
70
60
50
40
30
20
10
0
0 10
180 190 200
120 130
10
pressure drop
for each bend (m)
45°
40 + 40
50 + 50
0,5
40 + 40
50 + 50
25 C.S.I.
20 30 40 50 60
LENGTH OF THE INTAKE DUCT (m)
90°
0,8
70 80 90 100