Assortment / System Description

Control function
Room controller and setpoints
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11.4 Room controller and setpoints
The DXR2 applications possess 5 different room controls:
● Temperature control for heating
● Temperature control for cooling
● Air quality control
● Air volume flow tracking control (for positive or negative pressure control in
room for VAV)
● Humidity control (for local dehumidification via the cooling coils on fan
coils)
Enabled controllers communicate with one another. This ensures the
simultaneous use of multiple controllers in the same room.
Each enabled controller in the room requires a measured value provided to
control via a sensor.
11.4.1 Temperature setpoints
Each room has 8 different room temperature setpoints for the room
temperature: One heating and cooling setpoint each for operating modes
Comfort, Pre-Comfort, Economy, and Protection. The setpoints can be
configured on the DXR2. The heating and cooling setpoints for Pre-Comfort
correspond to a configurable difference for comfort setpoints.
Figure: Heating and cooling setpoints for various operating modes
Depending on the actual room operating mode, one setpoint each is selected
for heating and cooling and used for control.
The room temperature setpoints can be operated on the room operator unit.
An increase in room temperature acts on:
● Both Comfort setpoints (heating/cooling)
● Both Pre-Comfort setpoints (heating/cooling)
An decrease in room temperature acts on:
● Both Comfort setpoints (heating/cooling)
● Both Pre-Comfort setpoints (heating/cooling)
You can set the setpoint display as well as possible intervention by the room
user when configuring the room operator unit.
Sensor as feedback
Setpoint setting on
room operator unit