Siemens RDG20 KN Series Basic Documentation page 34

4
Functions
Operating modes
Window contact
Room operating mode:
Window contact
(RDG2..KN)
Presence detector
(RDG2..KN)
Temporary timer to
extend Comfort mode
Timer to extend
presence/absence
34 | 186
The thermostat is forced into Protection mode when the window is open. The
contact can be connected to multifunctional input X1, X2 or U1. Set P150, P153 or
P155 to 3. User operations are ineffective and OFF displays if the window contact
is active.
The window contact function is also available via the KNX signal "Window contact",
e.g., from a KNX switch or a KNX presence detector.
The operating mode can be changed to Comfort or Economy based on room
occupancy (room occupied or unoccupied, via presence detector or keycard).
For details, see Presence detector [➙ 50]
Comfort mode can be temporarily extended (e.g., working after business hours or
on weekends) when the thermostat is in Economy mode.
1. Press the operating mode button to return to Comfort for the preset period
(P102).
2. Press the operating mode button again to stop the schedule.
The following conditions must be fulfilled:
●
Room is unoccupied (via bus)
or
mode selection via operating mode button is set to "Auto (Comfort)-Protection"
(P002 = 1) or "Auto (Comfort)-Protection Hospitality" (P002 = 3) and the time
schedule via bus is Economy
●
P102 (extend Comfort period) is greater than 0
During the temporary Comfort mode extension, symbol
When P102 (extend Comfort period) equals 0, extended Comfort cannot be
activated; pressing the left button will switch the thermostat to Protection.
If the operating mode window contact is active, press the left button and OFF
displays (blinking).
The actual room operating mode can be forced temporarily to Comfort or
Economy/Protection. The time period is adjusted via the rotary knob:
●
Extend presence: Set the thermostat to Comfort for the selected time
●
Extend absence: Set the thermostat to Economy/Protection for the selected
time
To activate the function, press and hold the left button and, within 3 seconds, turn
the rotary knob...
●
clockwise for extended presence
●
counterclockwise for extended absence
The rotary knob adjusts the time period:
● Extend presence: 0:00...+9:30 in steps of 30 minutes; the symbol
displayed
● Extend absence: 0:00...–9:30 in steps of 30 minutes; the symbol
displayed
During the extended presence/absence periods, symbol
Function if no time schedule is received via bus
displays.
is
or is
is displayed.
A6V11545892_en--_e