Browning 3TB80 Sheave 322838-753 Ensure the furnace control board

Ensure the furnace control board dip switches are correctly configured to match the outdoor unit’s tonnage and seasonal airflow requirements

Using this precise Lennox furnace part maintains the factory-engineered static pressure required for safe combustion across all residential heating cycles

the Trane FAN3753 comes with a fixed hub and a steel set screw already integrated into the spider assembly for immediate mounting

Common Service Questions How do I adjust the opening temperature on the AVTA 25

the KVL 35 is oil-free compatible and supports a broad range of refrigerants

Browning 3TB80 Sheave 322838-753 Ensure the furnace control boardThe Browning 3TB80 Sheave is a high performance three groove TB Gripbelt sheave engineered for demanding industrial power transmission and HVACR applications. Constructed from close grain cast iron, this split taper bushed sheave is precision machined to ensure minimal vibration and maximum drive efficiency. It features a versatile combination groove design, allowing for the seamless operation of A, AX, B, and BX section V belts. With an 8. 35"