Siemens RDF800KN Series User Manual

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Siemens RDF800KN.., RDF800KN/VB, RDD810KN/NF Basic documentation CE1P3174en
Smart Infrastructure 2020-02-21
The “window contact” function is also available using the KNX signal "Window
state", e.g. from a KNX switch.
Only one input source can be used, either a local input X1/X2 or the KNX bus.
User operations are ineffective and OFF is displayed if the operating mode
“window contact” is active, or if "Window state" is sent using the bus.
The operating mode can be changed to Comfort and back to Economy depending
on the room occupancy (room occupied/unoccupied, using the presence detector
or the keycard).
Behavior without time scheduler:
· Whenever the presence detector is activated, the thermostat’s operating mode
of the thermostat changes to Comfort.
· Whenever the presence detector is deactivated, the operating mode changes
to Economy.
Behavior with time scheduler using bus:
· When the time switch is on Protection:
- Presence detector has no influence on the operating mode.
· When the time switch is on Economy:
- When the presence detector is activated, the operating mode changes to
Comfort.
- When the presence detector is deactivated, the operating mode goes to
(Auto) Economy.
· When the time switch is on Comfort:
- and the presence detector is activated or deactivated, Comfort mode is
maintained.
Important: When the time switch goes to Economy mode, and the presence
detector is still active, Comfort mode is maintained until the presence detector
becomes inactive, that is, back to (Auto) Economy mode
The contact (e.g. a card reader) can be connected to a multifunctional input X1/X2
(set P38 or P40 to 10) or the occupancy signal can be sent using the bus from a
KNX presence detector: Only one input source must be used, either a local input
X1/X2 or the KNX bus.
Comfort mode can be temporarily extended (e.g. working after business hours or
on weekends) when the thermostat is in Economy mode. The operating mode icon
switches the operating mode back to Comfort for the period preset via P68.
Touch the icon again to stop the timer.
The following conditions must be fulfilled:
· Time scheduler using the bus is Economy mode.
· P68 (extend Comfort period) is greater than 0.
During the temporary Comfort mode extension, the icon appears.
If P68 (extend Comfort period) = 0, extended Comfort cannot be activated. Touch
the icon to switch the thermostat to Protection.
If the window contact is active, touch the icon and OFF flashes on the LCD.
Room operating mode:
Window state
Note:
Presence detector
Note:
Temporary timer to
extend the Comfort
mode

Siemens RDF800KN Series Specifications

General

Brand	Siemens
Model	RDF800KN Series
Category	Thermostat
Language	English