n
Room sealed flue (C13, C33, C43, C63, C93)
If using a room sealed version, it is necessary to connect both the
combustion gas exhaust and the air-supply opening (parallel). For the
application of air discharge and combustion gas discharge piping with
a diameter other than 80 mm, a reducer should be used.
Chimney length for room sealed operation
Situation
Diameter
Maximum length (
L
)
Calenta
25s
Calenta
28c
Calenta
35s
Calenta
40c
Free vent in
zone I or
Restricted vent
in zone III
60-60 mm
7 m
5 m
-
-
70-70 mm
18 m
15 m
9 m
8 m
80-80 mm
20 m
20 m
20 m
19 m
90-90 mm
20 m
20 m
20 m
20 m
n
Connection in areas of different pressure (C53, C83)
Combustion air supply and combustion gas discharge are possible in
various pressure zones, semi-CLV systems. With the exception of
coastal areas. The maximum permissible difference in height
between the combustion air supply and the combustion gas discharge
is 36 m.
Chimney length in the various pressure zones
Situation
Diameter
Maximum length (
L
)
Calenta
25s
Calenta
28c
Calenta
35s
Calenta
40c
Free vent in
zone I
70 mm
13 m
13 m
5 m
5 m
80 mm
36 m
36 m
24 m
23 m
90 mm
36 m
36 m
36 m
36 m
100 mm
30 m
36 m
36 m
36 m
n
Reduction table
Pipe reductions per element used
Diameter
Elbow 45°
Elbow 90°
Pipe reduction Pipe reduction
60 mm
0,9 m
3,1 m
70 mm
1,1 m
3,5 m
80 mm
1,2 m
4,0 m
90 mm
1,3 m
4,5 m
100 mm
1,4 m
4,9 m
T000766-B
L
T000780-C
L
Calenta 25s - 28c - 35s - 40c
4. Installation
040412 - 7600585-01
35
