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facilitating accurate refrigerant flow control based on real-time temperature fluctuations
Key Benefits: OEM Reliability: Ensures exact fit and performance calibration for Lennox
For technicians performing maintenance in commercial boiler rooms or fluid management facilities
Direct OEM Fit: Drop-in replacement for Lennox 21L91 and 21L9101
You must retain your existing hardware or purchase the appropriate flange kit for your line size
York S1-031-01915-000 Sensor Freon facilitating accurate refrigerant flow controlThe York S1 031 01915 000 Supply Air Sensor is a precision 10K Ohm Type III NTC thermistor designed for high accuracy temperature monitoring within the discharge air stream. This OEM York replacement part is critical for maintaining proper discharge air temperature control in residential and commercial split systems or rooftop units. It functions by providing real time resistance feedback to the SE control board, allowing the system to modulate