The AQR2576NH is a KNX base module with a built-in maintenance-free NDIR CO2 sensor, built to UK British Standard dimensions and designed to plug onto AQR253x front modules. Powered via KNX bus with S-Mode and PL-Link, it delivers CO2 monitoring, demand-controlled ventilation, and PID-based climate management for British-standard KNX building automation systems.
| Communication | KNX S-Mode, KNX PL-Link |
|---|---|
| CO2 Sensor | NDIR type, maintenance-free and recalibration-free |
| CO2 Measuring Range | 0...5000 ppm |
| Analog Inputs | 1 x passive NTC 10k temperature sensor (room, floor, or ceiling) |
| Digital Inputs | 2 x potential-free contacts (window contacts or pushbuttons) |
| Power Supply | KNX bus, DC 21...29 V, bus load < 5 mA |
| Temperature Control | PID algorithm; continuous positioning 0...100% or PWM On/Off; pure heating and combined heating/cooling modes |
| Ventilation Control | 3 settable switching steps for humidity and CO2; 3 On/Off signal objects or one 0...100% positioning object for ventilation actuator |
| Setpoints | Temperature, humidity, and CO2 adjustable via KNX bus |
| Bus Coupler | Integrated with programming button and LED for ETS commissioning |
| Mechanical Design | UK (British Standard) |
| Dimensions (WxHxD) | 71 x 71 x 45 mm |
| Data Sheet | N1411 |
| Warranty | 60 months |