Replacement Motor, 24V

The LB-89859 is a genuine Lennox BCC3 furnace control board engineered to serve as the central operating system for HVAC units. This microprocessor-based control board coordinates and executes the operation of all critical HVAC components, making it essential for reliable heating and cooling performance. Designed for versatility, this control board functions seamlessly with all 24 VAC thermostats and operates within a voltage range of 98 to 132 VAC at 60 Hz. The board manages multiple critical functions including inducer fan motor control, blower fan operation, and continuous monitoring of limit switches and sensors to ensure safe, efficient system operation. Key electrical specifications include 20A capacity at 120 VAC for both cool and heat blower circuits, and 5A capacity at 120 VAC for the inducer motor. The board features intelligent timing controls with cool blower activation and deactivation delays of 1 second each, while heat blower delays range from 45 seconds on-delay to 90, 150, 210, or 270 seconds off-delay depending on system configuration. This replacement control board is ideal for HVAC technicians, facility managers, and contractors requiring a dependable component to restore full functionality to Lennox furnace systems. Whether performing routine maintenance or emergency repairs, the LB-89859 delivers the precision control and monitoring necessary for optimal HVAC system performance in residential and light commercial applications.