72
rF2/T2
rF1/T1
rF0/T0
9.1.2
Enthalpy control for Condair Dual
For accurate and energy saving air conditioning an enthalpy control is
recommended. In simple terms, enthalpy is the amount of energy of the air
in kJ/kg. With an enthalpy control the air temperature and the air humidity
are used to control the preheater in a way, that the Condair Dual can be
exactly and continuously regulated along the adiabatic line to the respec-
tive outlet conditions (rF2 and T2). With an enthalpy control a reheater is
not needed.
Important!
A dew point control which uses the dew point as regulation para-
meter in conjunction with a preheater and an air humidifier and where the
desired air temperature is achieved with a reheater is not suitable.
If another control system than the enthalpy control should be used please
contact your Condair representative.
Example of an enthalpy control for Condair Dual
Condition of outside air (rF0/T0):
-10 °C / 90 %rh
Condition before humidifier (rF1/T1): 35 °C / 4 %rh
Condition after humidifier (rF2/T2):
17.5 °C / 65 %rh
