DOL 634 CE
Technical User Guide
37
10.6.2.1.3 Dynamic Air at central exhaust
Dynamic Air allows better detection of the actual airflow in the duct and is often used in conjunction with air
cleaning.Dynamic Air is thus used for monitoring but does not provide input to the regulation.
Dynamic Air is installed by selecting the number of Dynamic Air sensors that are placed in the air outlet.The
sensors can be placed both in the central exhaust's fan bank and in the central duct.For each stepless unit, it is
possible to use a number of parallel controlled exhaust units/duct saddles and a number of Dynamic Air sen-
sors.
Measuring the varying stepless output provides an accurate expression of the output of the ventilation system
according to which regulation can be carried out by varying fan revolutions/the flap position.
Central duct: air outlet from sections
Duct take-offs
Dynamic Air sensor for inlet/
exhaust unit
DOL 634/ DOL 634 two-house climate controller
Connected to air outlet from sections (duct take-off) in
the central exhaust duct
DOL 634 CE central exhaust controller
Connected to sub-pressure gauge and air outlet in fan bank
Central exhaust
Fan bank
Dynamic Air sensor for
inlet/duct
Pressure gauge
Positioned 2/3 of the way down
in the duct away from the
exhaust
