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Direct OEM Fit: Drop-in compatibility replaces obsolete part numbers B1037509 and B1037519 without field modifications
ensuring consistent burner stability
ensuring optimal airflow and heat exchange efficiency
Common Questions What causes a 285F limit switch like the HH680369 to trip
Lennox Y4749 Replacement Mod 323269-701 Direct OEM Fit: Drop-in compatibilityThe Lennox Y4749 serves as the primary Pulse Furnace Replacement Mod, specifically engineered to replace the legacy G891TCA series direct spark ignition controls. This Baso BGN891 2C module is a critical 24V component for maintaining the unique combustion cycle of the Lennox Pulse furnace, providing precise timing for pre purge, trial for ignition, and inter purge sequences. As a veteran grade furnace ignition control board, it is designed for a wire
