
Reznor 223111 Sensor
The Reznor 223111 Sensor is a high-precision averaging thermistor sensor engineered for accurate temperature monitoring in commercial HVAC ductwork. Cross-referenced as BAPI #BA/10K-2-A-24-NB, this 24-foot bendable aluminum probe utilizes a 10K-2 Type II thermistor element to provide stable resistance signals to a building automation system (BAS) or direct digital control (DDC) interface. The extensive 24-foot length is critical for large-scale air handlers, ensuring the discharge air temperature or return air readings represent a true thermal profile rather than a localized hot or cold spot. Designed with a NEMA 1 rated enclosure for internal mounting, this duct averaging sensor mitigates the risk of inaccurate cycling and improves fuel efficiency by providing granular data to the main controller. It is a direct fit for Reznor heating units and compatible commercial air handling equipment requiring standard 10K-2 Ohm resistance curves.
Technical Specifications and Benefits:- Precise Thermal Imaging: 24-foot aluminum probe length enables comprehensive duct temperature averaging across large cross-sections.
- Universal Compatibility: Features the 10K-2 Type II Ohm thermistor curve, compatible with the majority of HVAC controllers and Reznor unit heaters.
- Durable Construction: The BA/10K-2-A-24-NB utilizes a flexible, low-profile aluminum sensor probe that resists corrosion and facilitates easy routing in tight plenums.
- Enhanced Control Stability: Eliminates stratification errors in HVAC zone control, preventing short-cycling and ensuring reliable burner or valve modulation.
- Easy Installation: Simplified two-wire configuration with a robust housing designed for standard field-service technicians and easy duct mounting.
What is the resistance value of the Reznor 223111 at room temperature?
The Reznor 223111 utilizes a 10K-2 Type II thermistor, which yields a resistance of 10,000 Ohms at 77°F (25°C). Verify this value with a multimeter during troubleshooting to ensure the sensor is within calibration.
How should the averaging probe be installed for the most accurate readings?
To maximize HVAC sensor accuracy, the 24-foot probe should be wound across the entire duct airflow path in a serpentine pattern. Use mounting clips to prevent the probe from vibrating against the duct walls or internal components.
Can this sensor replace a 10K-3 Type III thermistor?
No, 10K-2 and 10K-3 curves differ significantly at various temperature points. Installing this BAPI averaging sensor on a controller expecting a Type III curve will result in inaccurate temperature reporting and potential system malfunction.
This item is not eligible for free shipping.
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.
Reznor 223111 Sensor
The Reznor 223111 Sensor is a high-precision averaging thermistor sensor engineered for accurate temperature monitoring in commercial HVAC ductwork. Cross-referenced as BAPI #BA/10K-2-A-24-NB, this 24-foot bendable aluminum probe utilizes a 10K-2 Type II thermistor element to provide stable resistance signals to a building automation system (BAS) or direct digital control (DDC) interface. The extensive 24-foot length is critical for large-scale air handlers, ensuring the discharge air temperature or return air readings represent a true thermal profile rather than a localized hot or cold spot. Designed with a NEMA 1 rated enclosure for internal mounting, this duct averaging sensor mitigates the risk of inaccurate cycling and improves fuel efficiency by providing granular data to the main controller. It is a direct fit for Reznor heating units and compatible commercial air handling equipment requiring standard 10K-2 Ohm resistance curves.
Technical Specifications and Benefits:- Precise Thermal Imaging: 24-foot aluminum probe length enables comprehensive duct temperature averaging across large cross-sections.
- Universal Compatibility: Features the 10K-2 Type II Ohm thermistor curve, compatible with the majority of HVAC controllers and Reznor unit heaters.
- Durable Construction: The BA/10K-2-A-24-NB utilizes a flexible, low-profile aluminum sensor probe that resists corrosion and facilitates easy routing in tight plenums.
- Enhanced Control Stability: Eliminates stratification errors in HVAC zone control, preventing short-cycling and ensuring reliable burner or valve modulation.
- Easy Installation: Simplified two-wire configuration with a robust housing designed for standard field-service technicians and easy duct mounting.
What is the resistance value of the Reznor 223111 at room temperature?
The Reznor 223111 utilizes a 10K-2 Type II thermistor, which yields a resistance of 10,000 Ohms at 77°F (25°C). Verify this value with a multimeter during troubleshooting to ensure the sensor is within calibration.
How should the averaging probe be installed for the most accurate readings?
To maximize HVAC sensor accuracy, the 24-foot probe should be wound across the entire duct airflow path in a serpentine pattern. Use mounting clips to prevent the probe from vibrating against the duct walls or internal components.
Can this sensor replace a 10K-3 Type III thermistor?
No, 10K-2 and 10K-3 curves differ significantly at various temperature points. Installing this BAPI averaging sensor on a controller expecting a Type III curve will result in inaccurate temperature reporting and potential system malfunction.
This item is not eligible for free shipping.
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.
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Description
The Reznor 223111 Sensor is a high-precision averaging thermistor sensor engineered for accurate temperature monitoring in commercial HVAC ductwork. Cross-referenced as BAPI #BA/10K-2-A-24-NB, this 24-foot bendable aluminum probe utilizes a 10K-2 Type II thermistor element to provide stable resistance signals to a building automation system (BAS) or direct digital control (DDC) interface. The extensive 24-foot length is critical for large-scale air handlers, ensuring the discharge air temperature or return air readings represent a true thermal profile rather than a localized hot or cold spot. Designed with a NEMA 1 rated enclosure for internal mounting, this duct averaging sensor mitigates the risk of inaccurate cycling and improves fuel efficiency by providing granular data to the main controller. It is a direct fit for Reznor heating units and compatible commercial air handling equipment requiring standard 10K-2 Ohm resistance curves.
Technical Specifications and Benefits:- Precise Thermal Imaging: 24-foot aluminum probe length enables comprehensive duct temperature averaging across large cross-sections.
- Universal Compatibility: Features the 10K-2 Type II Ohm thermistor curve, compatible with the majority of HVAC controllers and Reznor unit heaters.
- Durable Construction: The BA/10K-2-A-24-NB utilizes a flexible, low-profile aluminum sensor probe that resists corrosion and facilitates easy routing in tight plenums.
- Enhanced Control Stability: Eliminates stratification errors in HVAC zone control, preventing short-cycling and ensuring reliable burner or valve modulation.
- Easy Installation: Simplified two-wire configuration with a robust housing designed for standard field-service technicians and easy duct mounting.
What is the resistance value of the Reznor 223111 at room temperature?
The Reznor 223111 utilizes a 10K-2 Type II thermistor, which yields a resistance of 10,000 Ohms at 77°F (25°C). Verify this value with a multimeter during troubleshooting to ensure the sensor is within calibration.
How should the averaging probe be installed for the most accurate readings?
To maximize HVAC sensor accuracy, the 24-foot probe should be wound across the entire duct airflow path in a serpentine pattern. Use mounting clips to prevent the probe from vibrating against the duct walls or internal components.
Can this sensor replace a 10K-3 Type III thermistor?
No, 10K-2 and 10K-3 curves differ significantly at various temperature points. Installing this BAPI averaging sensor on a controller expecting a Type III curve will result in inaccurate temperature reporting and potential system malfunction.
This item is not eligible for free shipping.
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.












