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Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
The Nordyne 903429 Control Board is a critical integrated unit designed specifically for M Series gas furnaces
This specific model is a non-protected transformer
providing a clear visual interface for fluid verification
meaning it will re-close the circuit once system pressure drops back to the 300 PSI threshold
Trane RLY2852 Relay 328140-751 The Nordyne 903429 Control BoardThe Trane RLY2852 Relay is a heavy duty 24v DPDT Relay engineered for precision switching in industrial and residential HVACR applications. As a genuine OEM Trane replacement part, this double pole double throw relay features a 24V coil designed to manage dual independent circuits simultaneously, making it an essential component for controlling compressors, fan motors, and sequencing valves. Built to withstand the rigors of high frequency cycling in