Instructions for the installer
31
3.6.4
Air intake and flue gas venting via 100/60 mm coaxial pipes
Type C12
• Minimum permissible length of horizontal coaxial pipes is 1 meter.
• Maximum permissible length of horizontal coaxial pipes is 6 metres.
•
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 duct is to be tilted down by 1% toward its outlet, to prevent rain water from entering the boiler.
•
The flow resistance of the first elbow shall not be taken into account to calculate maximum permissible length.
Use the diaphragms supplied with the boiler (see
Fig. 10 0KITCONC00 (100/60 mm)).
Pipe length (m)
Flue gas venting diaphragm diameter
1 ≤ L < 3 *
Ø 39.8
3 ≤ L ≤ 6 *
Ø 44
Tab. 6 Table indicating coaxial pipes 100/60 C12 type
(*) first curve included.
Type C32
• Minimum permissible length for vertical coaxial pipes is 1 metre, equal to the length of the chimney.
• Maximum permissible length for vertical coaxial pipes is 6 metres, including the chimney.
•
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.
Use the diaphragms supplied with the boiler (see
Fig. 10 0KITCONC00 (100/60 mm)).
Pipe length (m)
Flue gas venting diaphragm diameter
1 ≤ L < 3
Ø 39.8
3 ≤ L ≤ 6
Ø 44
Tab. 7 Table indicating coaxial pipes 100/60 C32 type
WARNING
The pipe length information refers to air intake/flue gas venting ducts made from smooth, rigid pipes approved and sup
-
plied by the manufacturer.
3.6.5
Air intake and flue gas venting via 125/80 mm coaxial pipes
Type C12
• Minimum permissible length of horizontal coaxial pipes is 1 meter.
• Maximum permissible length of horizontal coaxial pipes is 11 metres.
•
For each additional 90° elbow, maximum permissible length is to be reduced by 3 meters.
•
For each additional 45° elbow, maximum permissible length is to be reduced by 0.5 meter.
• The duct is to be tilted down by 1% toward its outlet, to prevent rain water from entering the boiler.
•
The flow resistance of the first elbow shall not be taken into account to calculate maximum permissible length.
Use the diaphragms supplied with the boiler.
Pipe length (m)
Flue gas venting diaphragm diameter
1 < L ≤ 5*
Ø 39
5 < L ≤ 6*
Ø 39.8
6 < L ≤ 7*
Ø 42
7 < L ≤ 9*
Ø 44
9 < L ≤ 10*
Ø 47
10 < L ≤ 11*
Ø 49
Tab. 8 Table indicating coaxial pipes 125/80 C12 type
(*) first curve included.
