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Room unit
3. Press the occupancy (on/off) button to make the selection, or wait 5 seconds for the selection to be
made automatically. After the selection has been made, the setpoint adjustment and up/down arrow
indications stop blinking.
3.3.3 Putting the room HVAC system in a comfort/energy saving mode or
increasing the airflow
A short press (<5 s) on the occupancy (on/off) button puts the room HVAC system in comfort mode (first
in bypass controller state, and then by default in occupied controller state), and increases the airflow
temporarily (if forced ventilation is activated).
A long press (>5 s) on the occupancy (on/off) button puts the room HVAC system in energy saving mode
(by default in unoccupied controller state).
3.3.4 Display indications
The display indications are shown in Figure 3-4 .
Figure 3-4 Indications in room unit display.
The display indications are described in Table 3-4 .
Table 3-4 Display indication descriptions.
Indication Description
Occupancy indication is shown when the controller is in occupied or bypass state.
Controller is in standby state.
Controller is in unoccupied or off state.
Room temperature is shown.
CO
2
level in room is shown.
Solid: Setpoint or setpoint adjustment is shown (according to the current View mode setting, see section 3.9.4 ).
Blinking: Setpoint adjustment is in progress by using the up and down buttons.
Up/down arrows are blinking alternatively when setpoint adjustment is in progress.
STANDBY
OFF
CO2
Regio Ardo manual, Rev. D 53