Because this blade operates with CCW (counter-clockwise) rotation

ensuring performance in varied HVAC environments

providing the millivolt signal necessary for the gas valve to remain energized

Internal Flame Monitoring: Features a dedicated flame detection circuit that strictly monitors the combustion process to prevent gas buildup during ignition failure

Always check the motor nameplate during installation to verify the specific rating

Lennox 19J99 Ignition Control 326058-755 Because this blade operates withThe Lennox 19J99 Ignition Control is a critical OEM replacement component designed for high performance gas fired furnaces and heating systems. Engineered for precision, this integrated furnace control board manages the critical timing of the ignition sequence, flame sensing, and fuel burn rate to ensure stable combustion. Operating on standard 24V AC at 60Hz, the 19J99 is built to withstand the rigorous duty cycles of residential and light commercial