25
97
750
450
60 mm
376
534
100
fig. 12
fig. 13
3.2.6.2. Ø 100/60 mm and Ø 125/80 mm air intake/flue gas coaxial duct system
The above data are referred to air intake/flue gas discharge systems which are implemented by means of smooth, rigid
manufacturer approved and supplied pipes.
Type C13
KB 24
Minimum permissible length of horizontal coaxial pipes is 1 meter, without accounting for the first elbow connected to the boiler.
Maximum permissible length of Ø 100/60 mm horizontal coaxial pipes is 9.5 meter not including the first elbow connected to the boiler.
Maximum permissible length of Ø 125/80 mm horizontal coaxial pipes is 14.5 meter not including the first elbow connected to the boiler.
For each additional 1 meter straight pipe maximum permissible length is to be reduced by 1 meter.
For each additional 90° elbow, maximum permissible length is to be reduced by 1 meter.
For each additional 45° elbow, maximum permissible length is to be reduced by 0.5 meter.
The wall terminal reduces maximum permissible length by 1.5 meters.
The air intake duct is to be tilted by 1% toward its exit, in order to avoid rain water to enter it.
KB 28
Minimum permissible length of horizontal coaxial pipes is 1 meter, without accounting for the first elbow connected to the boiler.
Maximum permissible length of Ø 100/60 mm horizontal coaxial pipes is 6.5 meter not including the first elbow connected to the boiler.
Maximum permissible length of Ø 125/80 mm horizontal coaxial pipes is 11.5 meter not including the first elbow connected to the boiler.
For each additional 1 meter straight pipe maximum permissible length is to be reduced by 1 meter.
For each additional 90° elbow, maximum permissible length is to be reduced by 1 meter.
For each additional 45° elbow, maximum permissible length is to be reduced by 0.5 meter.
The wall terminal reduces maximum permissible length by 1.5 meters.
The air intake duct is to be tilted by 1% toward its exit, in order to avoid rain water to enter it.
Type C33
KB 24
Minimum permissible length of vertical coaxial pipes is 1 meter.
Maximum permissible length of Ø 100/60 mm vertical coaxial pipes is 9.5 meters.
Maximum permissible length of Ø 125/80 mm vertical coaxial pipes is 14.5 meters.
For each additional 1 meter of straight pipe maximum permissible length is to be reduced by 1 meter.
For each additional 90° elbow, maximum permissible length is to be reduced by 1 meter.
For each additional 45° elbow, maximum permissible length is to be reduced by 0.5 meter.
The roof terminal reduces maximum permissible length by 1.5 meters.
KB 28
Minimum permissible length of vertical coaxial pipes is 1 meter.
Maximum permissible length of Ø 100/60 mm vertical coaxial pipes is 6.5 meters.
Maximum permissible length of Ø 125/80 mm vertical coaxial pipes is 11.5 meters.
For each additional 1 meter of straight pipe maximum permissible length is to be reduced by 1 meter.
For each additional 90° elbow, maximum permissible length is to be reduced by 1 meter.
For each additional 45° elbow, maximum permissible length is to be reduced by 0.5 meter.
The roof terminal reduces maximum permissible length by 1.5 meters.
These pictures are merely an indication. For installation of optional fittings please refer to the instruction enclosed to the same fittings.
Sealing cap
Sealing cap
Gasket
Gasket
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