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JUNIOR GREEN R.S.I.
Twin pipes (ø 80 mm) (fig. 23)
The twin pipes can face in the direction most suited to the installation
requirements.
For installation, follow the instructions supplied with the specific accessory
kit for condensing boilers.
Arrange the flue gas discharge pipe so it slopes by 1% towards the
boiler.
The boiler automatically adapts the purging to the type of installation
and the length of the pipes. Do not obstruct or choke the pipes in
any way.
Refer to the graphs to find the maximum lengths of the single pipe.
The use of longer pipes reduces the boiler output.
maximum straight length
twin pipes ø 80 mm
45+45 m
*"Straight length" means without bends, drainage terminals or joints.
80
75
70
65
60
55
50
45
40
35
30
25
20
15
10
5
0
0
5
10
15
8
pressure drop
45° bend
90° bend
0.5 m
0.8 m
20
25
30
35
40
45
50
55
60
65
Suction pipe length (m)
70
75
80
85
90
110
95
100
105
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