Description
Lennox 10F83 Mixed Air Thermistor Sensor Overview
The Lennox 10F83 is a mixed air thermistor sensor designed for use in air handling units and HVAC systems where precise monitoring of mixed air temperature is critical. Featuring a 3K (3,000-ohm) NTC thermistor element, this sensor provides reliable temperature feedback to your system’s control board, helping maintain optimal comfort, energy efficiency, and equipment protection.
Key Features
- OEM Lennox replacement sensor — ensures compatibility with supported Lennox equipment
- 3K (3,000-ohm) NTC thermistor resistance for accurate temperature sensing
- Designed for mixed air temperature measurement in air handling units and economizer applications
- Provides real-time temperature data to the system control board for precise airflow and comfort management
- Durable construction built to withstand the demands of commercial and residential HVAC environments
- Direct OEM replacement minimizes downtime and simplifies installation
Application
The 10F83 mixed air thermistor sensor is used to monitor the temperature of blended return and outdoor air within an air handling unit. Accurate mixed air sensing is essential for economizer control, demand-controlled ventilation, and overall system efficiency. This sensor communicates temperature readings to the unit’s control board, enabling the system to make real-time adjustments to damper position and airflow.
Why Choose the Lennox 10F83?
As a genuine Lennox OEM part, the 10F83 is engineered to exact factory specifications, ensuring seamless integration with compatible Lennox systems. Using an OEM-matched sensor helps preserve system accuracy, protects equipment warranties, and reduces the risk of control errors caused by out-of-spec components.







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