The Nordyne 632547R Pressure Switch is a critical OEM furnace safety control engineered to monitor proper inducer motor draft and venting conditions in high-efficiency heating systems

a compromised seal at the secondary heat exchanger leads to pressure switch trips and dangerous flue gas leakage

the Carrier 329117-703 is a mechanical airflow component and functions regardless of the fuel kit installed on the furnace

While this kit provides the primary fan assembly

Common Questions Is this kit required for all Gen2 compressor swaps

Lennox 17F07 Collector Box 322056-301 The Nordyne 632547R Pressure SwitchWhen you're dealing with condensate leaks or secondary heat exchanger drainage issues, the Lennox 17F07 Collector Box is the direct OEM replacement mandated for a proper seal. This Cold End Header Box Kit acts as the critical interface between the heat exchanger and the inducer motor, managing the collection and routing of combustion by products. Measuring approximately 24 inches in length and 8 inches in width, this high density plastic component is