Lennox 17F21 Collector Box 328140-751 a drop exceeding 3 PSIG

a drop exceeding 3 PSIG in a suction line indicates that the core is restricted and a replacement is necessary to prevent oil return issues

Will this replace a 25A 3-pole contactor

Direct OEM Replacement: Seamlessly replaces legacy part 9F30212 and cross-references with A0824A3457 and FP37569 for immediate installation

Key Benefits Precise Compatibility: Custom-fit for Maxitrol TD114

Lennox 17F21 Collector Box 328140-751 a drop exceeding 3 PSIGThe Lennox 17F21 Collector Box is a critical OEM component designed for high efficiency condensing furnaces, specifically the Lennox EL296 series. As a veteran grade furnace replacement part, this collector box (also referenced by part number 619598 21) is engineered to manage the secondary heat exchanger's condensate flow. It effectively captures and channels corrosive water vapor away from the internal cabinet to prevent moisture damage and ensure