For open exhaust of combustion gases above the roof, the
vent must always be provided with a suitable stainless steel
wire grill.
4.8.3.
Lengths of the air/flue gas pipes
4
To define the maximum final length, you must deduct
the pipe length in accordance with the reduction table.
4
The boiler is also suitable for longer chimney lengths
with diameters other than those indicated in the
table. Please contact us for further information.
n
Open flue (B23, B23P, B33)
If using an open flue version, the air supply opening remains open;
only the combustion gas opening is connected. The boiler then takes
in the combustion air required directly from the premises in which it
is installed. For the application of air discharge and combustion gas
discharge piping with a diameter other than 80 mm, a reducer should
be used.
CAUTION
4
The air supply opening must remain open.
4
The premises in which the appliance is installed must
be fitted with the necessary air supply openings.
They must not be reduced or closed.
Chimney length for the open flue version
Situation
Diameter
Maximum length (
L
)
Calenta
25s
Calenta
28c
Calenta
35s
Calenta
40c
Free vent in zone I
60 mm
19 m
16 m
11 m
10 m
70 mm
35 m
30 m
21 m
19 m
80 mm
40 m
40 m
40 m
40 m
90 mm
40 m
40 m
40 m
40 m
Restricted vent in
zone III
Countryside (ΔP
static = + 25 Pa)
60 mm
15 m
13 m
9 m
9 m
70 mm
28 m
24 m
17 m
16 m
80 mm
40 m
40 m
40 m
39 m
90 mm
40 m
40 m
40 m
40 m
Restricted vent in
zone III Near the
coast (ΔP static =
+ 40 Pa)
60 mm
12 m
11 m
8 m
8 m
70 mm
23 m
21 m
14 m
14 m
80 mm
40 m
40 m
35 m
35 m
90 mm
40 m
40 m
40 m
40 m
T000765-B
L
4. Installation
Calenta 25s - 28c - 35s - 40c
34
040412 - 7600585-01
Содержание Calenta 25s
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