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MC2-FC mode FC
Document no.:200064 Version: 1.5
Page 8 of 44
1.6 Ventilation functions
The controller supports 2 separate ventilation functions:
Cooling ventilation: This ventilation function is linked to an evaporator and used during cooling and
off-cycle defrosting. The function can be switched on and off automatically, but can also be
continuously switched on manually. This choice can be made with the cooling ventilation mode.
Automatic ventilation: This ventilation function is not linked to cooling. The function can be
switched on during real-time periods, on a pulse/pause basis, on a pulse/pause basis synchronised
with cooling or based on combinations of these options (P402..P412). Pulse/pause synchronised
with cooling means that: After a cooling action and the ventilation switch-off delay, the automatic
ventilation starts with a pause time.
1.7 Dehumidification
Dehumidification is performed by cooling (when the temperature is above the temperature set point)
and heating at the same time. Here it is assumed that the cooling has a larger capacity than the
heating. In this way, the temperature set point is ultimately reached.
The dehumidification can be manually started (continuously or with a run-off timer) with a
parameter (P382). An automatic start on the basis of a time interval and a dehumidification time
can also be defined (P380..P381).
1.8 Humidification
The controller supports 3 humidification modes:
Off: The humidification control is continuously disabled.
Continuous: The humidification control is continuously active.
Automatic: The humidification control is activated on the basis of advanced automatic
humidification timing settings, which include pulse/pause timing and synchronisation with cooling
and ventilation (P390..P398).
An overruling limitation provision can be used to limit the total humidification time in a time period:
A maximum humidification time in a blocking time can be configured (P393..P394).