Regin REGIO EEDO, Manual, Page: 6 / 108

Control functions
2 Control functions
This section contains descriptions of and configuration information for the controller's basic control
functions.
2.1 Controller mode
The controller mode function enables the controller to support control of various room HVAC systems, that
is, different combinations of heating, cooling, and variable air volume (VAV) devices that are part of a room.
The controller provides the following 10 selectable controller modes:
✓
Heating
✓
H Heating
✓ H Cooling
✓ Cooling
✓
Heating/Cooling (change-over)
✓
H Heating/Cooling (change-over)
✓
H VAV
✓
C VAV
✓
VAV
✓
H C VAV
Based on the selected controller mode, the controller outputs one or multiple control signal sequences,
denoted Y1, Y2, and Y3. The signal sequences control the heating, cooling, and VAV devices in the room,
and are assigned to the different controller outputs via configuration.
Figure 2-1 shows the drop down that is used to select a controller mode in Application tool.
Figure 2-1 Controller mode selection in Application tool.
2.1.1 Heating
This controller mode is suitable for room HVAC systems that use a radiator or fan coil as heating device.
The controller acts as a heating controller and regulates based on the heating setpoint and the current room
temperature.
6 Regio Eedo manual, Rev. D