DXR2 room automation station applications support two forms of temperature control: Direct temperature control and room supply air cascade.

Direct temperature control

On direct room temperature control the DXR2 directly calculates the output signal (0...100%) for the aggregates from the measured room temperature.

Room supply air cascade.

Room supply air cascade quickly achieves the room temperature setpoint. DXR2 calculates a setpoint from the room temperature as measured at the air outlet of the air system. The temperature can be limited to prevent the inflow of unpleasantly cool or warm air into the room.

Figure: Plant diagram for supply air cascade control