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C43
C53
Figure 5.11
TYPE C
63
If using ducts and terminals from another
manufacturer (type C
proved and in the case of a flue gas duct, ma-
terials must be used that comply with the con-
densation products.
When dimensioning the ducts, account for the
residual pressure difference at the fan:
Useful static pressure
at nominal heat input
Flue gas over-temper-
ature
Maximum recircula-
tion of CO
in the suc-
2
tion duct
TYPE C
(Figure 5.12)
83
The boiler with the installation of this type of dis-
charge must take the comburent air from the out-
side and discharge the flue gas in the individual
or collective chimney designed for this purpose.
INSTALLATION
90°
45°
), these must be ap-
63
25 kW
120
Pa
35 kW
100
Pa
25 kW
-
°C
35 kW
-
°C
25 kW
-
%
35 kW
-
%
C83
Figure 5.12
Roof-mounted flue gas discharge kit (Fig-
ure 5.13)
Coaxial duct Ø 80/125 mm with a nominal
length of 0.96 m.
This kit makes it possible to discharge directly
to the roof.
C33
Ø 125
Figure 5.13
Extensions are available for reaching the maxi-
mum height.
Its max height with extensions is 10 m for
model M160.2025 SM/M and 6 m for model
M160.3035 SM/M. Coaxial Ø 80/125 mm 90°
and 45° elbows are available that reduce the
total max length of the ducts:
For a 45° elbow loss
For a 90° elbow loss
90°
45°
0.5 m
1 m
- 37 -
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