
Siemens Building Technology QAA2212.FWNN Sensor
The Siemens Building Technology QAA2212.FWNN is a professional-grade room temperature sensor designed for high-precision building automation. Built with a 1k Ohm Platinum RTD (385 Alpha) sensing element, this unit delivers exceptional accuracy of +/- 0.54°F at 32°F, ensuring stable environmental control in commercial offices, classrooms, and industrial facilities. This model features a full LCD display for real-time monitoring and an integrated setpoint override function with a momentary contact rated for 1A at 24 Vac, allowing technicians to provide occupants with local adjustment capabilities without compromising system-wide efficiency.
Engineered for seamless integration, the Siemens QAA2212.FWNN utilizes a standard terminal block connection and fits a 2" x 4" electrical box or can be mounted directly to drywall. The analog output signal is specifically calibrated for a range of 32°F to 122°F (0°C to 50°C), making it a versatile choice for standard HVAC control loops. The "No Logo" housing provides a clean, neutral aesthetic that blends into any architectural environment while maintaining the rugged reliability expected from commercial HVAC sensors. With its low-profile design and strategically placed ventilation slots, this platinum RTD sensor optimizes airflow to provide rapid response times to temperature fluctuations.
Key Benefits
- High-accuracy 1k Ohm Platinum RTD element ensures precise temperature readings for sensitive climate zones.
- Integrated LCD display provides immediate local feedback on current room conditions for occupants and maintenance staff.
- Setpoint override functionality allows for momentary manual control, improving occupant comfort in zoned systems.
- Universal terminal block and standard mounting hardware simplify field installation on 2" x 4" electrical boxes.
- Logo-free, neutral white housing offers a professional aesthetic suitable for high-end commercial interiors.
Common Questions
How do I wire the Siemens QAA2212.FWNN for override functionality?
The unit features a dedicated terminal block for the momentary contact override. Ensure your controller is configured to recognize the momentary dry contact signal (max 1A @ 24 Vac) to trigger temporary occupied setpoints.
What is the typical response time for this room sensor?
Thanks to the strategically designed ventilation slots in the housing, this Siemens room temperature sensor is engineered for high-velocity airflow through the sensing chamber, minimizing thermal lag and ensuring fast-acting control response.
Is this sensor compatible with non-Siemens control systems?
Yes, since it utilizes a standard 385 alpha 1k Ohm Platinum RTD resistance signal, it is compatible with any building management system (BMS) or DDC controller that supports Pt1000 input curves.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Siemens Building Technology QAA2212.FWNN Sensor
The Siemens Building Technology QAA2212.FWNN is a professional-grade room temperature sensor designed for high-precision building automation. Built with a 1k Ohm Platinum RTD (385 Alpha) sensing element, this unit delivers exceptional accuracy of +/- 0.54°F at 32°F, ensuring stable environmental control in commercial offices, classrooms, and industrial facilities. This model features a full LCD display for real-time monitoring and an integrated setpoint override function with a momentary contact rated for 1A at 24 Vac, allowing technicians to provide occupants with local adjustment capabilities without compromising system-wide efficiency.
Engineered for seamless integration, the Siemens QAA2212.FWNN utilizes a standard terminal block connection and fits a 2" x 4" electrical box or can be mounted directly to drywall. The analog output signal is specifically calibrated for a range of 32°F to 122°F (0°C to 50°C), making it a versatile choice for standard HVAC control loops. The "No Logo" housing provides a clean, neutral aesthetic that blends into any architectural environment while maintaining the rugged reliability expected from commercial HVAC sensors. With its low-profile design and strategically placed ventilation slots, this platinum RTD sensor optimizes airflow to provide rapid response times to temperature fluctuations.
Key Benefits
- High-accuracy 1k Ohm Platinum RTD element ensures precise temperature readings for sensitive climate zones.
- Integrated LCD display provides immediate local feedback on current room conditions for occupants and maintenance staff.
- Setpoint override functionality allows for momentary manual control, improving occupant comfort in zoned systems.
- Universal terminal block and standard mounting hardware simplify field installation on 2" x 4" electrical boxes.
- Logo-free, neutral white housing offers a professional aesthetic suitable for high-end commercial interiors.
Common Questions
How do I wire the Siemens QAA2212.FWNN for override functionality?
The unit features a dedicated terminal block for the momentary contact override. Ensure your controller is configured to recognize the momentary dry contact signal (max 1A @ 24 Vac) to trigger temporary occupied setpoints.
What is the typical response time for this room sensor?
Thanks to the strategically designed ventilation slots in the housing, this Siemens room temperature sensor is engineered for high-velocity airflow through the sensing chamber, minimizing thermal lag and ensuring fast-acting control response.
Is this sensor compatible with non-Siemens control systems?
Yes, since it utilizes a standard 385 alpha 1k Ohm Platinum RTD resistance signal, it is compatible with any building management system (BMS) or DDC controller that supports Pt1000 input curves.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Siemens Building Technology QAA2212.FWNN is a professional-grade room temperature sensor designed for high-precision building automation. Built with a 1k Ohm Platinum RTD (385 Alpha) sensing element, this unit delivers exceptional accuracy of +/- 0.54°F at 32°F, ensuring stable environmental control in commercial offices, classrooms, and industrial facilities. This model features a full LCD display for real-time monitoring and an integrated setpoint override function with a momentary contact rated for 1A at 24 Vac, allowing technicians to provide occupants with local adjustment capabilities without compromising system-wide efficiency.
Engineered for seamless integration, the Siemens QAA2212.FWNN utilizes a standard terminal block connection and fits a 2" x 4" electrical box or can be mounted directly to drywall. The analog output signal is specifically calibrated for a range of 32°F to 122°F (0°C to 50°C), making it a versatile choice for standard HVAC control loops. The "No Logo" housing provides a clean, neutral aesthetic that blends into any architectural environment while maintaining the rugged reliability expected from commercial HVAC sensors. With its low-profile design and strategically placed ventilation slots, this platinum RTD sensor optimizes airflow to provide rapid response times to temperature fluctuations.
Key Benefits
- High-accuracy 1k Ohm Platinum RTD element ensures precise temperature readings for sensitive climate zones.
- Integrated LCD display provides immediate local feedback on current room conditions for occupants and maintenance staff.
- Setpoint override functionality allows for momentary manual control, improving occupant comfort in zoned systems.
- Universal terminal block and standard mounting hardware simplify field installation on 2" x 4" electrical boxes.
- Logo-free, neutral white housing offers a professional aesthetic suitable for high-end commercial interiors.
Common Questions
How do I wire the Siemens QAA2212.FWNN for override functionality?
The unit features a dedicated terminal block for the momentary contact override. Ensure your controller is configured to recognize the momentary dry contact signal (max 1A @ 24 Vac) to trigger temporary occupied setpoints.
What is the typical response time for this room sensor?
Thanks to the strategically designed ventilation slots in the housing, this Siemens room temperature sensor is engineered for high-velocity airflow through the sensing chamber, minimizing thermal lag and ensuring fast-acting control response.
Is this sensor compatible with non-Siemens control systems?
Yes, since it utilizes a standard 385 alpha 1k Ohm Platinum RTD resistance signal, it is compatible with any building management system (BMS) or DDC controller that supports Pt1000 input curves.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












