York S1-031-09129-000 Temp Sensor

The York S1-031-09129-000 is an OEM supply air temperature sensor designed for precise discharge air monitoring in commercial and residential HVAC systems. As a critical component for maintaining discharge air temperature (DAT) setpoints, this 10k ohm thermistor provides real-time resistance feedback to the integrated control board, ensuring the secondary heat or cooling stages cycle correctly. Built with a durable probe housing and a standard two-wire thermal connection, the S1-031-09129-000 sensor is a direct replacement for York temperature sensors in units where discharge air data is required for VAV or economizer control. Maintaining a clean signal from the supply air temp sensor is vital to preventing short-cycling and ensuring energy-efficient operation. This genuine HVAC temperature sensor is engineered to withstand the high-velocity airflow and thermal fluctuations of the supply duct environment without drift.

• OEM Precision: Ensures exact compatibility with York control logic for accurate 10k ohm resistance readings.
• Duct-Mount Stability: Rugged probe design resists vibrations and thermal stress within the supply air stream.
• System Efficiency: Provides the critical data required for precise discharge air temperature control and staging.
• Direct Integration: Standard lead lengths and connector types simplify field replacement for technicians.

Is the S1-031-09129-000 a 10k ohm sensor?
Yes, this is a standard 10k ohm Type II or Type III thermistor commonly utilized in York air handlers and rooftop units.

Where should this supply air sensor be installed?
For the most accurate readings, it should be installed in the supply duct downstream of the indoor coil and heat exchanger, but before any significant duct branches.

What are the symptoms of a failing discharge air sensor?
A faulty sensor often causes the control board to lock out, display "Out of Range" errors, or fail to engage cooling/heating stages due to incorrect temperature data.

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.