Dantherm DanX 1 XD, User Manual

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4. CONTROLS
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4.9.3 Fan control
Normally the fans are running at the speed set in the Time Program, but if the speed is set to
low speed (Open Pool Low or Closed Pool Low) there can be the following reasons why the
unit is running still on full speed.
•
If the calculated dehumidification demand is >5%, the fans will go to full speed, until
the calculated dehumidification demand is again <5%.
•
If there is a demand for free cooling (Outdoor_Air_Temperature <
Room_Temperature) the fans will go over to full speed until the set point temperature
has been reached again.
•
If there is a larger difference between the actual hall temperature and the set point
than 2°C the fans will go to high speed, until the difference is lower than 2°C.
•
If the supply air temperature is above the set point (Max_Supply_Temperature).