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High Precision Relay: Disengages the start capacitor instantly once the motor reaches sufficient speed
For contractors performing field maintenance or orifice swaps
Replaces AAON P87680
Durable Construction: Built with high-temperature resistant materials like 446 stainless steel and Kanthal D for extended service life
this OEM Sterling heating part ensures the system meets its designed thermal efficiency and operational safety standards by maintaining a steady ignition source for the main burners
Nordyne 903422 Heat Exchanger 323613-751 High Precision Relay: Disengages theThe Nordyne 903422 Heat Exchanger is an essential OEM replacement component engineered for high efficiency thermal transfer in residential and light commercial forced air systems. As a veteran preferred HVAC furnace part, this aluminized steel assembly is designed to withstand the rigorous thermal cycling of modern heating duty cycles, providing superior corrosion resistance. This gas heat exchanger serves as the critical safety barrier between
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