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Chapter 7
Control modes
Regio Midi manual
Chapter 7 Control modes
Different control modes
The controllers can be configured for different control modes/control sequences. Depending
on which control mode is active, one, both or all three of the universal outputs, UO1, UO2 and
UO3, are used. See
Table 1
3 below for a summary.
Control mode
UO1*
UO2*
UO3**
Heating
Heating
-
Forced ventilation
(digital), Lighting
control,
Analogue, 0...10 V
(VAV damper),
EC fan
Heating/Heating (split output signal)
Heating
Heating
Heating or cooling via change-over
Heating or cooling
-
Heating/Cooling
Heating
Cooling
Heating/Cooling with VAV-control and
forced supply air function
Heating
Cooling
Heating/Cooling with VAV-control
Heating
Cooling
Cooling
Cooling
Cooling
Cooling/Cooling (split output signal)
Cooling
Cooling
Heating/Cooling/VAV
(only available in -C3- models, except
C3DFOC)
Heating
Cooling
Heating/Heating or Cooling via change-
over (only available in fan models)
Heating
Cooling
Change over with VAV-function
Heating or cooling
Cooling
Table 13. Control modes
* Not available in …T-models.
** Only available in …3-models.
Control mode 0: Heating
In control mode Heating, the unit is always a heating controller and controls according to the
heating setpoint plus/minus the setpoint adjustment. The setpoint can be adjusted in the display
or via the setpoint knob.
Control mode 1: Heating/Heating
Split output signal
In control mode Heating/Heating, the controller is always a heating controller and controls
according to the basic heating setpoint plus the setpoint adjustment. The control signal is
divided between the two outputs with a deadband in between. The first output (UO1) works
between 0...48 % of the control signal. When the control signal reaches 52 %, UO2 starts to
operate and will be 10 V when the control signal is 100 %. See the figure below:
