Green Heating Technology
23
Flue system types
Split pipe system (C
42
, C
52
, C
82
* and B
22
)
Model
Split pipe system Ø80mm
(with splitter on coaxial connection)
AS+SC
min÷max
(m)
SC
max
(m)
Reducer
for length of
AS+SC (m)
Ø mm
20 FR
25 FR
2 ÷ 16
14
all
NO
30 FR
2 ÷ 14
8
all
NO
35 FR
2 ÷ 16
10
all
NO
(F): the reducer is supplied with the boiler
(R): the reducer is available on request
the diameter is punched on the reducer itself
Do not consider AS for B
22
systems (air inlet from the room)
AS
SC
45 mm
ø80 mm
ø80 mm
167 mm
167 mm
00363 01
Example of split pipe system (C
82
)
a 90° Ø80 bend equivalent length is 0,5m
a 45° Ø80 bend equivalent length is 0,25m
*
Note: Split pipes allow to make also
C
12
and C
32
. flue systems
Coaxial system (C
12
, C
32
)
1300 mm
ø100 mm
ø60 mm
LC
V
ø125 mm
00010 00
LCO
min. 300 mm
130 mm
ø100
90 mm
ø60
00011 00
Model
Coaxial system Ø60/100 mm
LCO
min÷max
(m)
LCV
min÷max
(m)
Reducer
LCO or LCV
length (m)
Ø mm
20 FR
25 FR
0.8 ÷ 4
0.8 ÷ 5
up to 1
43 (F)
more than 1
NO
30 FR
0.8 ÷ 3
0.8 ÷ 4
up to 1
45 (F)
more than 1
NO
35 FR
0.8 ÷ 3
0.8 ÷ 4
up to 1
48 (F)
more than 1
NO
(F): the reducer is supplied with the boiler
(R): the reducer is available on request
the diameter is punched on the reducer itself
Example of vertical coaxial system (C
32
)
a 90° Ø60/100 bend equiv. length is 1,0m
a 45° Ø60/100 bend equiv. length is 0,5m
Example of horizontal coaxial system (C
12
)
