Siemens RDG400KN Basic Documentation page 8

Functions
8 / 87
Siemens
Building Technologies
∂ Room temperature control via built-in sensor or external room
temperature/return air temperature sensor or KNX room temperature sensor
∂ IAQ control via external CO
or S-Mode)
∂ Changeover between heating and cooling mode (automatically via local sensor
or bus, or manually)
∂ Selection of applications via DIP switches or commissioning tool (ACS790).
∂ Selection of operating mode via operating mode button on the thermostat
∂ Temporary Comfort mode extension
∂ Display of current room temperature or setpoint in °C and/or °F
∂ Display of CO
external sensor value in ppm or with symbols (+++; ++-; +--)
2
(RDG405KN)
∂ Display of outside temperature or time of day via KNX bus
∂ Minimum and maximum limitation of room temperature setpoint
∂ Minimum and maximum limitation of air flow signal DC 0...10 V/3-position
∂ External CO
sensor DC 0...10 V; 0...2000 ppm (RDG405KN)
2
∂ External CO
sensor, KNX; 0...5000 ppm (RDG405KN)
2
∂ Button lock (automatic or manual)
∂ 2 multifunctional inputs, freely selectable for:
– Operating mode switchover contact (keycard, window contact, etc.)
(RDG400KN)
– Window contact switching operating mode to Protection (RDG405KN)
– Presence detector switching operating mode to Comfort (RDG405KN)
– Sensor for automatic heating/cooling changeover
– External room temperature or return air temperature sensor
– Dewpoint sensor
– Electric heater enable
– Fault input
∂ Interworking with AQR and QMX sensor for IAQ and room temperature
acquisition (RDG405KN)
∂ 1 multifunctional active DC input (RDG405KN), freely selectable for:
- External IAQ sensor (CO2, VOC)
- Air damper position feedback (optimization of supply air fan's operation)
∂ Monitoring input for temperature sensor or switch state
∂ Feedback of air damper position via KNX bus or a DC 0...10V input for
optimization of pressure control
∂ Floor heating temperature limitation
∂ Reloading factory settings for commissioning and control parameters
RDG400KN,RGD405KN Basic documentation
/VOC sensor on the DC 0...10 V inputs KNX (LTE-
2
CE1P3192en
2017-02-17