York 025-35787-008 Sensor

The York 025-35787-008 is a specialized HVAC fixed reset temperature sensor engineered for precise thermal monitoring in chiller control systems. This SPST (Single Pole Single Throw) sensor features a 20-foot lead length, allowing for versatile routing through large-scale equipment cabinets and air handling units. Designed as a critical OEM replacement part, it provides reliable limit switch functionality by breaking the electrical circuit when specific temperature thresholds are met. Technicians typically utilize this sensor in industrial cooling applications to prevent coil freeze-up or excessive discharge temperatures. Its rugged construction ensures consistent resistance values and signal accuracy, which is vital for maintaining the operational integrity of York centrifugal and screw chillers. Proper installation ensures that the 025-35787-008 temperature probe communicates effectively with the system's control board, facilitating automated safety manual resets and preventing compressor cycling issues in high-demand environments.

• Extended 20-Foot Reach: Simplifies sensor placement in large-scale chiller evaporator coils and remote mounting locations.
• SPST Logic: Provides a clean signal break for safety cutouts, ensuring the HVAC control board receives a definitive state change.
• OEM Compatibility: Specifically calibrated for York Millenium and YK chiller series, maintaining factory specifications for setpoints.
• Hardwired Durability: High-grade insulation on lead wires resists moisture and vibration common in commercial HVACR mechanical rooms.

What is the primary function of this fixed reset sensor?
This component acts as a safety limit that opens the circuit at a predetermined temperature. It is commonly used as a freeze protection sensor or a high-limit discharge cutout in York HVAC systems.

Can I use this 20-foot sensor to replace a shorter lead model?
Yes, the 025-35787-008 can replace shorter versions like the 5-foot or 10-foot York sensors provided the technical specifications for the reset temperature match. Excess wire should be properly coiled and secured to avoid electromagnetic interference.

How do I verify if this SPST sensor has failed?
Use a multimeter to check for continuity. In its normal state at ambient temperature, the York 025-35787-008 should show a closed circuit. If it remains open at standard temperatures, the internal bimetal or thermistor limit has likely tripped or failed.

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.