What happens if the inlet pressure exceeds 1/2 PSI

or SPST applications by using the appropriate terminals

As a universal furnace fan limit switch

Direct Replacement Kit: Includes necessary components to simplify the HVAC motor installation process and reduce system downtime

Technicians should always use the OEM Reznor 112751 to ensure the trip temperature and mounting configuration meet the original safety certifications of the appliance

Nordyne 903105 Burner Box Cover 319852-301 What happens if the inletThe Nordyne 903105 Burner Box Cover is a critical replacement component designed for sealed combustion furnace systems. This heavy duty steel cover ensures proper containment within the combustion chamber, maintaining the pressure differential required for safe, efficient firing. It comes factory equipped with a high temperature sealant gasket, providing an airtight seal against the heat exchanger face to prevent flue gas leakage and ensure correct