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English
Twin outlets (ø 80)
Twin ducts can be placed in the most suitable direction for
installation requirements but special care must be taken as regards
the temperature of the installation site and the length of the fumes
duct. To install, follow the instructions supplied with the kit.
In the event of installation with external discharge sections, to
calculate the maximum permitted length without a condensate
collector, refer to the external temperature instead of that of the
installation site of the boiler.
If the appliance works at temperatures lower than 50°C (e.g.:
installations with external probe), the maximum permitted
length without condensate collector must be decreased by
0.85 metres.
The condensate collector can only be applied to the fumes
outlet, within 0.85 m from the boiler; connect the trap of the
condensate collector to a waste water drain.
The fumes outlet duct must slope by 1% towards the conden-
sate collector.
The boiler automatically adapts ventilation according to the
type of installation and the length of the ducts. Do not obstruct
or narrow the ducts in any way.
If the length of the ducts is different from that indicated in the
table to the side:
- for model 26 MIX C.S.I., the sum of the lengths of the inlet
and outlet ducts must be less than 30 metres, but the
length of a single duct must not exceed 18 metres
- for models 30 MIX C.S.I. - MIX R.S.I., the sum of the lengths
of the inlet and outlet ducts must be less than 28 metres,
but the length of a single duct must not exceed 17 metres
- for model 35 MIX C.S.I. - MIX R.S.I., the sum of the lengths
of the inlet and outlet ducts must be less than 12 metres,
but the length of a single duct must not exceed 8 metres.
max. length
twin duct (ø 80) (m)
15 + 1526 MIX C.S.I.
14 + 1430 MIX C.S.I.
14 + 1430 MIX R.S.I.
6 + 635 MIX C.S.I.
pressure drop
for each bend (m)
45°
90°
0,85
0,5
Maximum length twin ducts ø 80 26 MIX C.S.I.
EXHAUSTION LENGHT (m)
EXTERNAL TEMPERATURE (°C)
EXHAUSTION LENGHT (m)
EXTERNAL TEMPERATURE (°C)
Maximum length twin ducts ø 80
30 MIX C.S.I. - 30 MIX R.S.I.
EXHAUSTION LENGHT (m)
EXTERNAL TEMPERATURE (°C)
Maximum length twin ducts ø 80
35 MIX C.S.I. - 35 MIX R.S.I.
Fig. 10
0,0
0,5
1,0
1,5
2,0
2,5
3,0
3,5
4,0
4,5
5,0
5,5
6,0
6,5
7,0
7,5
8,0
8,5
9,0
9,5
10,0
-30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30
0,0
0,5
1,0
1,5
2,0
2,5
3,0
3,5
4,0
4,5
5,0
5,5
6,0
6,5
7,0
7,5
8,0
8,5
9,0
9,5
10,0
-30-25-20-15-10-5 0 5 1015202530
EXHAUSTION LENGHT (m)
EXTERNAL TEMPERATURE (°C)
EXHAUSTION LENGHT (m)
EXTERNAL TEMPERATURE (°C)
26 - 30kW
35kW
TWIN OUTLETS (ø 80)
Condensate
collector
Condensate
collector
Condensate
drain trap
Condensate
drain trap
Air intake
duct
Air intake
duct
Fumes
outlet duct
Fumes
outlet duct
Fig. 8b
CONDENSATE COLLECTOR
COMPULSORY
CONDENSATE COLLECTOR
NOT COMPULSORY
CONDENSATE COLLECTOR
COMPULSORY
CONDENSATE COLLECTOR
NOT COMPULSORY
35 MIX R.S.I.
6 + 6
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