User Manual

7-32
Heating, ventilation and air conditioning - room temperature control
Room temperature controllers with integrated sensing
i-system
Siemens Switzerland Ltd
Building Technologies Division
2019www.siemens.com/gamma
7
Range overview AQR2570..
Mechanical design Dimensions (W x H) Stock No. Product No. DT
EU (CEE/VDE) 70.8 x 70.8 mm S55720-S203 AQR2570NF A
IT (3 Modular) 110 x 64 mm S55720-S205 AQR2570NG A
UK (British Standard) 83 x 83 mm S55720-S204 AQR2570NH C
US (UL) 64 x 110 mm S55720-S206 AQR2570NJ A
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, oor,
or ceiling temperature
• 2 multifunctional binary inputs to connect window contacts or buttons
• Power supply via KNX bus, bus load < 5 mA
• 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 humidity, 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..
29-Wall-mounted.indd 32 19.08.2018 15:13:27