Lennox 17F21 Collector Box 320734-701 a common wire (C-wire) is

a common wire (C-wire) is recommended for permanent display backlighting and to maintain consistent RedLink wireless communication without draining power

Reliable Pressure Calibration: Ensures the equipment operates within the specific W

Built with premium materials to resist carbon buildup and thermal stress

It is designed to replace the entire pilot head assembly to ensure the flame sensor and ignition source are correctly positioned

Lennox 17F21 Collector Box 320734-701 a common wire (C-wire) isThe 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