York S1-031-09130-000 Temp Sensor

The York S1-031-09130-000 is an essential Outside/Return Air Temp Sensor engineered specifically for Johnson Controls and York commercial HVAC systems. As a precision HVAC thermistor, this component provides critical resistance feedback to the control board to manage economizer control functions and ambient temperature lockouts. Designed for high-accuracy temperature sensing, the probe facilitates proper damper modulation for free-cooling cycles, ensuring the rooftop unit or split system operates within established thermal parameters. Technicians frequently utilize this OEM replacement part when troubleshooting drifted resistance values or failed sensors that trigger efficiency-robbing fault codes. The sensor is built to withstand the rigors of the air stream, whether mounted in the outside air hood or the return air plenum, maintaining signal integrity without the need for frequent recalibration. Utilizing a standard two-wire connection, it integrates directly with existing wiring harnesses to restore automated cooling logic and optimize energy efficiency across the mechanical system.

Key Benefits

• Broad Compatibility: Custom-calibrated for seamless use with York, Luxaire, and Coleman RTU thermistor applications.
• Dual-Function Monitoring: Rated for both outdoor air sensor and return air temperature tracking.
• Reliable Performance: Provides stable Ohms-to-temperature resistance curves to prevent erratic compressor cycling.
• Industrial Build: Engineered for durability in high-airflow environments and exposure to varying humidity levels.

Common Questions

How do I verify the functionality of the York S1-031-09130-000? To test this sensor, disconnect it from the control board and use a multimeter to measure the resistance across the leads. Compare the reading to the standard York resistance chart for your current ambient temperature to identify any calibration drift.

What is the primary role of this sensor in an economizer setup? The S1-031-09130-000 monitors the enthalpy or dry-bulb temperature of the incoming air to determine if the outside air is suitable for cooling the building without mechanical refrigeration.

Can this sensor be used in place of a discharge air sensor? While functionally similar, this outside/return air temp sensor is calibrated for specific ranges. Always verify the part number against the unit's technical manual to ensure the resistance curve matches the controller requirements.

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.