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6.1.2
Lengths of the air/flue gas pipes
Type of air/flue gas connection
Concentric pipes connected to a horizontal terminal (Alu)
Concentric pipes connected to a vertical terminal (Alu)
Concentric pipes in the boiler room
Single pipes in the chimney (combustive air in counter current)
(Alu)
Bi-flow adapter + Separate single air/flue gas pipes
(combustive air taken from outside) (Alu)
Chimney (rigid or flexible) (combustive air taken in the premises)
(PPS)
Lmax is measured by adding the lengths of the air/flue gas
pipes and the equivalent lengths of the other elements:
Alu
Equivalent length in m
Elbow 87°
Elbow 45°
Elbow 30°
Elbow 15°
Inspection T
Right inspection tube
25/01/2011 - 300014883-001-K
Diameter
Diameter
100/150 mm
100 mm
1.9
5.0
1.2
1.2
/
/
/
/
3.3
5.3
0.5
0.5
Diameter
C
100/150 mm
13
C
100/150 mm
33
110/150 mm
C
93
110 mm
100/150 mm on
C
53
2x100 mm
80 mm (rigid)
110 mm (rigid)
B
23P
80 mm (Flexible)
110 mm (Flexible)
Gas 110 Eco 115 / 65
Maximum length of the connection pipes
(metre)
Gas 110 Eco 65
Gas 110 Eco 115
9
11.5
16
23
23.5
-
21
-
5.9
9.4
10
Air: 11
flue gases: 5
23.5
-
21
-
35
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