Siemens Building Technology QAA22SS.EWSN Sensor
The Siemens QAA22SS.EWSN is a professional-grade multi-signal room temperature sensor designed for seamless integration with high-performance building automation systems. Built as the direct updated replacement for the QAA22SS.EWNN, this field-selectable unit offers contractors maximum versatility by allowing a choice between 0-10Vdc, 0-5Vdc, or 4-20mA analog output signals via an internal jumper. This eliminates the need to stock multiple SKUs for different controller requirements, making it an essential component for commercial HVAC monitoring and precinct control.
Engineered for high-traffic environments, the QAA22SS.EWSN features a tamper-proof "blank front" design with no display, ensuring setpoints remain secure from unauthorized adjustments. The patented Siemens housing is optimized with precision-cut ventilation slots to maximize airflow over the sensing element, providing a rapid thermal response across an operating range of 32°F to 122°F (0°C to 50°C). Installation is streamlined with a standard terminal block connection and a low-profile aesthetic that blends into any modern office or educational space without being obtrusive.
Key Benefits for Technicians:- Universal Compatibility: Field-selectable active signals (0-10V/4-20mA) ensure the sensor works with almost any BAS controller.
- Direct Replacement: Seamlessly swaps out the QAA22SS.EWNN while maintaining the recognizable Siemens logo on the housing.
- Fast Thermal Response: Patented ventilation ring technology ensures accurate temperature tracking by optimizing airflow across the internal sensor.
- Tamper-Proof Design: No HMI or local adjustment buttons prevents occupants from interfering with building-wide climate schedules.
- Easy Mounting: Designed to mount directly to a standard 2x4 electrical box or drywall using the included hardware.
How do I switch between 0-10V and 4-20mA outputs?
The output signal is determined by the position of the internal selection jumpers located on the PCB. Always verify the controller's input requirements before landing your wires on the terminal block.
Does this sensor require a separate power supply?
Yes, this is an active sensor requiring either 18 to 36 Vdc or 24 Vac ± 20% power to operate the analog output circuitry.
Can I use this to replace a passive 10K thermistor sensor?
No, this is an active sensor (0-10V / 4-20mA). If your controller specifically requires a resistive 10K or Pt1000 input, you will need a passive Siemens QAA series model instead.
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 QAA22SS.EWSN Sensor
The Siemens QAA22SS.EWSN is a professional-grade multi-signal room temperature sensor designed for seamless integration with high-performance building automation systems. Built as the direct updated replacement for the QAA22SS.EWNN, this field-selectable unit offers contractors maximum versatility by allowing a choice between 0-10Vdc, 0-5Vdc, or 4-20mA analog output signals via an internal jumper. This eliminates the need to stock multiple SKUs for different controller requirements, making it an essential component for commercial HVAC monitoring and precinct control.
Engineered for high-traffic environments, the QAA22SS.EWSN features a tamper-proof "blank front" design with no display, ensuring setpoints remain secure from unauthorized adjustments. The patented Siemens housing is optimized with precision-cut ventilation slots to maximize airflow over the sensing element, providing a rapid thermal response across an operating range of 32°F to 122°F (0°C to 50°C). Installation is streamlined with a standard terminal block connection and a low-profile aesthetic that blends into any modern office or educational space without being obtrusive.
Key Benefits for Technicians:- Universal Compatibility: Field-selectable active signals (0-10V/4-20mA) ensure the sensor works with almost any BAS controller.
- Direct Replacement: Seamlessly swaps out the QAA22SS.EWNN while maintaining the recognizable Siemens logo on the housing.
- Fast Thermal Response: Patented ventilation ring technology ensures accurate temperature tracking by optimizing airflow across the internal sensor.
- Tamper-Proof Design: No HMI or local adjustment buttons prevents occupants from interfering with building-wide climate schedules.
- Easy Mounting: Designed to mount directly to a standard 2x4 electrical box or drywall using the included hardware.
How do I switch between 0-10V and 4-20mA outputs?
The output signal is determined by the position of the internal selection jumpers located on the PCB. Always verify the controller's input requirements before landing your wires on the terminal block.
Does this sensor require a separate power supply?
Yes, this is an active sensor requiring either 18 to 36 Vdc or 24 Vac ± 20% power to operate the analog output circuitry.
Can I use this to replace a passive 10K thermistor sensor?
No, this is an active sensor (0-10V / 4-20mA). If your controller specifically requires a resistive 10K or Pt1000 input, you will need a passive Siemens QAA series model instead.
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 QAA22SS.EWSN is a professional-grade multi-signal room temperature sensor designed for seamless integration with high-performance building automation systems. Built as the direct updated replacement for the QAA22SS.EWNN, this field-selectable unit offers contractors maximum versatility by allowing a choice between 0-10Vdc, 0-5Vdc, or 4-20mA analog output signals via an internal jumper. This eliminates the need to stock multiple SKUs for different controller requirements, making it an essential component for commercial HVAC monitoring and precinct control.
Engineered for high-traffic environments, the QAA22SS.EWSN features a tamper-proof "blank front" design with no display, ensuring setpoints remain secure from unauthorized adjustments. The patented Siemens housing is optimized with precision-cut ventilation slots to maximize airflow over the sensing element, providing a rapid thermal response across an operating range of 32°F to 122°F (0°C to 50°C). Installation is streamlined with a standard terminal block connection and a low-profile aesthetic that blends into any modern office or educational space without being obtrusive.
Key Benefits for Technicians:- Universal Compatibility: Field-selectable active signals (0-10V/4-20mA) ensure the sensor works with almost any BAS controller.
- Direct Replacement: Seamlessly swaps out the QAA22SS.EWNN while maintaining the recognizable Siemens logo on the housing.
- Fast Thermal Response: Patented ventilation ring technology ensures accurate temperature tracking by optimizing airflow across the internal sensor.
- Tamper-Proof Design: No HMI or local adjustment buttons prevents occupants from interfering with building-wide climate schedules.
- Easy Mounting: Designed to mount directly to a standard 2x4 electrical box or drywall using the included hardware.
How do I switch between 0-10V and 4-20mA outputs?
The output signal is determined by the position of the internal selection jumpers located on the PCB. Always verify the controller's input requirements before landing your wires on the terminal block.
Does this sensor require a separate power supply?
Yes, this is an active sensor requiring either 18 to 36 Vdc or 24 Vac ± 20% power to operate the analog output circuitry.
Can I use this to replace a passive 10K thermistor sensor?
No, this is an active sensor (0-10V / 4-20mA). If your controller specifically requires a resistive 10K or Pt1000 input, you will need a passive Siemens QAA series model instead.
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.
