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In the night setback mode, the rooms can be cooled with the cool outdoor air outside normal work-
ing hours; all heating batteries, cooling batteries, recovery systems, humidity and air quality control
are disabled. The setting is made in the menu
Night setback , which can be entered directly.
If a room unit or remote switch is connected, the airflow can be changed via this with a correspond-
ing configuration (offset).
Setpoint Description Default
Supply Eco Supply airflow rate for economy mode Half nominal airflow
rate
Supply Comfort Supply airflow rate for comfort mode Nominal airflow rate
Return Eco Return airflow rate for economy mode Half nominal airflow
rate
Return Comfort Return airflow rate for comfort mode Nominal airflow rate
Supply set Current supply airflow rate setpoint … m³/h
Return set Current return airflow rate setpoint … m³/h
Table 8: Airflow rate setpoints
The setpoints for night setback, air quality and humidity control can be found in the chapters night
setback (
14.5 Night setback ), air quality control ( 14.4.1.3 Fan speed ) and humidity control
( 14.4.1.1 CO2 sensor ).
Pressure control
When the fans are controlled by the duct pressure, the required pressure setpoint is set at commis-
sioning separately for supply and return air and is equal for economy and comfort mode. This is visi-
ble, but can be changed only by service personnel. The current air flow rate is always visible on the
main page.
An air quality control or dehumidification is not possible, because the amount of air cannot be
changed and depends only on the external duct pressure.
If air quality control is provided by means of duct pressure, the maximum duct pressure can also be
set at poor air quality. The resulting duct pressure is then the maximum of the setpoint for economy
/ comfort mode and air quality control. Thus, the selected duct pressure is always maintained and
increased due to poor air quality. The setting is made in the menu "air quality", which can be en-
tered directly.
If the dehumidification is activated by means of duct pressure, the maximum duct pressure can also
be set at high humidity. The resulting duct pressure is then the maximum of the setpoint for econ-
omy / comfort mode and dehumidification control. Thus, the selected duct pressure is always main-
tained and increased due to high room humidity. The setting is made in the menu "humidity", which
can be entered directly.
Setpoint Description Default
Supply duct press. Supply air duct pressure setpoint See data sheet
Return duct press. Return air duct pressure setpoint See data sheet
Table 9: Duct pressure setpoints