User Manual

Heating, ventilation and air conditioning - room temperature control
Room thermostats
Flush-mounted
210
Siemens Switzerland Ltd www.siemens.com/gamma 2020
Smart Infrastructure
7
Touch Screen Flush-mount PM2.5 & IAQ Controller with KNX
 AC 230 V operating voltage, large, backlit display
 Display and setpoint adjustment for PM2.5 and CO2 control
 Display of room temperature, outside temperature, VOC (volatile organic compound) and RH (rel ative
humidity)
 Support 1-/3-/4-speed On/Off fan or DC fan output
 Two multifunctional inputs for external passive and DC 0…10 V sensors
 Operating modes: Comfort, Economy and Protection
 KNX S-Mode
 KNX commissioning via ETS or local control parameters
 KNX integration into Desigo via group (ETS) or individual addressing
 KNX integration into third-party system via group addressing (ETS)
 Mounting on recessed square 86 mm box or round 60 mm with 60 mm fixing centers and minimum
40 mm depth
 Color of housing: Ivory white (RAL 9001)
Application selectable:
 PM2.5 control only
 CO2 control only
 PM2.5 & CO2 controls (CO2 higher priority in control)
 Ventilation control
2x sensor inputs are selectable:
0: No function
1: Temperature (AI) (NTC 10k)
2: Temperature (AI) (0…10 V)
3: PM2.5 (AI) μg/m3 (0…10 V)
4: CO2 (AI) ppm (0…10 V)
5: VOC (AI) % (0…10 V)
6: VOC (AI) mg/m³ (0…10 V)
7: RH (AI) % (0…10 V)
8: Alarm input (DI)
9: Dummy AI (0…10 V) (RU only)
Data sheet
A6V11439454
Operating voltage
AC 230 V
230 V
Power consumption
Max. 7.0 VA / 2.5 W
Communication
KNX S-Mode
Analog outputs
DC 0…10 V for ECM fan output
Relay outputs
Fan: N.O. contacts, non-floating
Valve: N.O. contacts, non-floating
Degree of protection
IP30
Dimensions (W x H x D)
86 x 86 x 46.8 mm
Color
White
RDF870KN
Stock no.
Product no.
S55770-T407
RDF870KN