Design Information | 3
M2320121_en | Installation instructions Pellet boiler PECO 15
3.6.2 Supply air line
NOTICE!Install the combustion air supply (piping) in accordance with the
applicable standards
Ü "Overview of standards" [}7]
r Connect the supply air line leak-tight to the connection on the boiler
Ä Refer to the dimensions of the supply air line connection on the boiler in the
Technical Data
When dimensioning pipe bends in the supply air line, ensure that:
The ratio of the radius of curvature (r) to pipe diameter (d) is greater than 1
r:d ≥ 1
For example:
- supply air line diameter = 160 mm
- minimum radius of pipe bends = 160 mm
▪ The supply air line should be as straight as possible and take the shortest path
▪ Keep the number of pipe bends to a minimum
▪ Max. resistance of the supply air line: 20 Pa
3.6.3 Condensation
NOTICE!The greater the difference between the temperature of the outside air
being drawn in and the room temperature, the greater the risk of condensation
In Germany, the following additional requirement must be observed: The lines must be
installed with an incline making sure that any condensation water can drain away and the
outside air can be drawn in without allowing water or animals from entering the building.
To avoid condensation:
r Jacket the entire supply air line with suitable thermal insulation
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