Exhausto EXact2 VEX240 series, Basic Instructions

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Note ● All compensation options can be connected and active at the same time, and
may influence the control airflow
● CO
2
and humidity compensation cannot be activated if air regulation method
8 is selected.
Autostart with timer
operation If the weekly schedule is at OFF and either the CO
2
or the humidity level exceeds
the starting limit for CO
2
or humidity compensation, the VEX/CX will automatically
start up using the settings from indoor climate level "Economy".
Menu 3.1.2.1 - CO
2
compensation
Requirements A CO
2
sensor (CO2B or other CO
2
sensor via AI SPARE, MIO-CO2, BMS) must
be mounted to allow selection of CO
2
compensation of the airflow. Connection of
the sensor is described in the additional instructions accompanying the sensor.
Function When the control system is operating, this function can be used to increase the
airflow in the event of increasing CO
2
levels.
NB ● Cannot be activated if air regulation method 8 is selected
Selection of CO
2
compensation
Activate in Menu 3.1.3.2.
Example
CO
2
concentration in the air
is ...
Airflow...
A less than Start is the same as set value
B between Start and Maximum increases gradually to a high level,
depending on the current CO
2
level
C greater than Maximum is increased to maximum air re-
placement
3005167-2022-02-02
Starting up the unit for operation
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