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M160.3035 SM/M horizontally and in case the
terminal must always discharge horizontally.
Supplementary 45° or 90° elbow (Figure 5.8
C)
Coaxial elbows Ø 60/100 mm.
When these elbows are used in the duct, they
reduce the maximum length of the flue gas
ducts for:
For a 45° elbow loss
For a 90° elbow loss
Twin pipe suction discharge duct kit Ø 80
mm (Figure 5.9) - (Figure 5.10) - (Figure 5.11)
This kit makes it possible to separate the flue
gas discharge from the air suction. The termi-
nals can be inserted in exhaust flues designed
for this purpose, or discharge flue gas or intake
air directly on the wall.
Note: When the boiler is combined with a twin
flue gas discharge kit , a Ø 50 mm (Figure 5.9)
diaphragm must be inserted between the boil-
er and the air suction stub pipe.
The diaphragm is included in the Ø 80 mm
splitter flue gas kit .
Air suction
flanged
stub pipe
Diaphragm
Gasket
Figure 5.9
- 36 -
INSTALLATION
N.B.: The terminals of the air suction and
flue gas exhaust pipes must not be posi-
tioned on opposite walls of the building
(EN 483).
C13
0.5 m
1 m
Figure 5.10
The minimum length of the pipes must not
be less than 0.5 m, whereas the max. sum of
sections A + B that can be implemented us-
ing extensions must not exceed 40 m for
model M160.2025 SM/M and 25 m for model
M160.3035 SM/M.
Also Ø 80 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
0.9 m
1.65 m
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