Data Sheet for Product

2/14
Siemens Flush-mount room sensor AQR253…, AQR257… CE1N1411en
Smart Infrastructure KNX S-Mode / KNX LTE-Mode / KNX PL-Link 2020-12-31
Use
The room sensor is used in heating, ventilating and air conditioning plants to
optimize comfort and energy consumption via demand-controlled ventilation.
The room sensor records:
• CO
2
concentration in rooms with varying occupancy due to time or number of
people such as in museums, movie theaters, offices, meeting rooms, class
rooms, auditoriums, hospitals, living spaces.
• Relative room humidity.
• Room temperature.
• A second room temperature for averaging, or floor or ceiling temperature.
The room sensor helps to control:
• Room temperature via PID controller.
• Air quality:
• Humidity.
As well as
• Switching of electrical devices
• Switching and dimming lights
• Control solar protection systems.
• Monitor window contacts.
Devices featuring CO
2
measurement are not suited to safety applications such as
gas or smoke alarm.
Type summary, ordering
An installed sensor comprises front module, base module with mounting plate as
well as separate-order design frame (see “Accessories”). Both front and base
module can be combined as needed:
Type
Stock number
Humidity
measuring
range
Temperature
measuring
range
Air quality
indication
AQR2530NNW
S55720-S137
–
–
–
AQR2532NNW
S55720-S136
–
0…50 °C
–
AQR2533NNW
*)
S55720-S140
0…100 % r.h.
–
–
AQR2535NNW
S55720-S141
0…100 % r.h.
0…50 °C
–
AQR2535NNWQ
S55720-S219
0…100 % r.h.
0...50 °C
LED
*) Not supplied anymore
Type
Stock number
CO
2
measuring
range
1)
Format
Dimensions
[mm]
AQR2570NF
S55720-S203
–
CEE/VDE
70.8 x 70.8
AQR2570NH
S55720-S204
–
British Std
83 x 83
AQR2570NG
S55720-S205
–
3 Modular
110 x 64
AQR2570NJ
S55720-S206
–
UL
64 x 110
AQR2576NF
S55720-S207
0…5000 ppm
CEE/VDE
70.8 x 70.8
AQR2576NH
S55720-S208
0…5000 ppm
British Std
83 x 83
AQR2576NG
S55720-S209
0…5000 ppm
3 Modular
110 x 64
AQR2576NJ
S55720-S210
0…5000 ppm
UL
64 x 110
All base modules have one input for a remote NTC 10k temperature sensor as well as connections for 2
potential-free contacts to operate lighting and solar protection systems.
1) ppm = Parts per million
Note
Front module
Base module