cooling unit’s control behaviour:
Unlike speed-controlled cooling devices
such as the new Rittal “Blue e+” cooling
units, conventional enclosure cooling units
begin with the two-point regulation of the
cooling operation when a temperature
inside the enclosure gets above of
35°C and finishes when the shutdown
temperature of 30°C is achieved (at a
typical hysteresis of 5K). If a cooling device
does not reach the shutdown temperature,
a conventional cooling unit will therefore
continue to operate. If this happens, it’s a
good indication that the cooling unit has
an insufficient output and