Durable Construction: Built to withstand the high pressures and temperatures characteristic of commercial and residential hydronic heating environments
common in commercial lighting and HVAC circuits
The automatic reset (recycle type) functionality ensures the system re-engages once gas pressure returns to the safe operating range below the OPEN-HI trip point
External equalization ensures accurate superheat sensing by compensating for pressure drops across the evaporator
This OEM furnace control board is engineered for high-cycle reliability and serves as a verified direct replacement board for multiple legacy part numbers
Nordyne 1021575R Control Board 322838-753 Durable Construction: Built to withstandFor field technicians servicing Nordyne, Intertherm, or Miller equipment, the Nordyne 1021575R Control Board is the critical replacement component for single stage gas furnaces within the MG1E series. This integrated furnace control board (IFC) manages the complete ignition sequencing, encompassing the 120 VAC inducer motor start, hot surface igniter (HSI) warm up, and gas valve energization. Designed to replace aging 1021575 series units, this direct