Condensation
Supply air ducts are normally led along cellar ceilings to the appliance. The
temperature difference between the cold air drawn from outside and the room
temperature inside the building shell inevitably results in condensation, usually at the
unprotected metal air lines.
NOTICE! The greater the temperature difference between the outside air temperature
and 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:
❒ Line the supply air duct with sufficient heat insulation
➥ Depends on the average room temperature and the temperature of the outside
air, as well as the local conditions
➥ The surface temperature must be higher than the room temperature's dew
point even in unfavourable weather conditions (cold winters)
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Safety
Design Information
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Froling GesmbH | A-4710 Grieskirchen, Industriestraße 12 | www.froeling.com
