User Manual
Heating, ventilation and air conditioning - room temperature control
Room temperature controllers with integrated sensing
i-system
227
Siemens Switzerland Ltd www.siemens.com/gamma 2020
Smart Infrastructure
7
Base module with KNX for temperature and humidity measurement
Base module without sensor for plugging onto a front module
1 analog input to connect temperature sensors with NTC 10k sensing element to measure room, floor,
or ceiling temperature
2 multifunctional binary inputs to connect window contacts or buttons
Power supply via KNX bus, bus load < 5 mA
Communication: KNX S-Mode, KNX PL-Link
Temperature control as continuous control (PID algorithm) for pure heating operation, heating and
cooling operation, and adjustable positioning variable as continuous positioning signal 0…100%, or as
pulse-width modulated (PWM) switching signal On/Off,
Ventilation control across 3 settable switching steps for relative hum idity, and 3 switching signal
objects On/Off, or one positioning signal object 0…100% to control a ventilation actor
Via setpoints for room temperature and relative humidity adjustable via KNX bus
Adjustable commissioning and control parameters
Integrated bus coupler with programming button and LED
Data sheet
N1411
Voltage supply
KNX bus
Analog inputs, number
1
Analog inputs
Passive temperature sensor NTC 10k
Digital inputs, number
2
Digital inputs
Potential-free contacts
AQR2570..
Range overview AQR2570..
Mechanical design
Dimensions (W x H)
Dimensions
(WxHxD)
[mm]
Stock no.
Product no.
EU (CEE/VDE)
70.8 x 70.8 mm
S55720-S203
AQR2570NF
IT (3 Modular)
110 x 64 mm
S55720-S205
AQR2570NG
UK (British Standard)
83 x 83 mm
S55720-S204
AQR2570NH
US (UL)
64 x 110 mm
64 x 110 x 45
S55720-S206
AQR2570NJ
Remote sensor for AQR257..
Product Title
Data sheet
Stock no.
Product no.
Front module with passiv temperature measurement, LG-Ni1000
N1408
S55720-S133
AQR2531ANW
Mounting plate EU (CEE/VDE)
N1408
S55720-S161
AQR2500NF
Cable temperature sensor PVC 2 m, NTC 10k
N1831
BPZ:QAP1030.200
QAP1030.200