Reznor 258860 TXV 323055-751 The Resideo S8910U3000 is an

The Resideo S8910U3000 is an industry-standard universal hot surface ignition module engineered to replace over 800 legacy models

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preventing hazardous leaks and optimizing the combustion cycle of the primary heating equipment

This typically indicates a failure in the ECM power module or a seized blower wheel

the Trane FLR7962 is the engineer-specified replacement for all existing FLR6231 applications

Reznor 258860 TXV 323055-751 The Resideo S8910U3000 is anThe Reznor 258860 is a heavy duty thermal expansion valve (TXV) kit engineered for precise refrigerant metering in commercial cooling applications. This OEM replacement part is specifically calibrated for use with Reznor AUCA (size B 090), AUD2, and AUH3 air handlers and condensing units. As a vital component of the refrigeration cycle, this TXV kit regulates the flow of liquid refrigerant into the evaporator coil, maintaining the optimal superheat