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Control functions
Table 2-12 Change-over detection configuration settings. (continued)
Configuration setting Description
Temp. diff. that shifts change-over state to cooling (°C) The controller shifts the change-over state to cooling when the
pipe medium temperature is this amount of degrees lower than
the room temperature.
Valve run time at change-over calculation (sec) The period of time (in seconds) that the valve is open before the
pipe medium temperature is measured and compared to the
room temperature.
2.4 Controller state
Controller state is a control function that makes it possible for the room HVAC system to operate with
priority on comfort or energy saving.
The following controller states are available for use and the controller always operates in one of them:
✓
Off
✓
Unoccupied
✓
Standby
✓
Occupied
✓
Bypass
Figure 2-18 Controller state configuration settings in Application tool.
The different controller states make use of various setpoint and deadband settings to regulate the heating and
cooling distribution, as described in section
2.4.1 . See section 5 for information about setpoint and deadband
settings, and setpoint adjustment.
The controller state configuration settings are described in section 2.4.2 , and controller state changes are
described in section 2.4.3 .
An overview of the controller states is provided in Table 2-13 .
Regio Ardo manual, Rev. D 23