always verify the contactor wiring diagram and physical dimensions before installation

Built with integrally finger-safe terminals

slotted pilot and bypass keys allow for immediate front-facing calibration

In some cases

preventing unsafe combustion cycles

Trane WHL0643 Wheel THPU32HP7Y always verify the contactor wiringThe Trane WHL0643 is a high performance direct drive blower wheel engineered for critical airflow applications in HVAC systems. Designed with a 9. 88" diameter and a 9. 40" width, this double inlet centrifugal wheel provides the necessary static pressure to maintain consistent CFM across forced air furnaces and air handlers. The unit features a 1 2 inch bore and is balanced for counter clockwise (CCW) rotation, ensuring stable operation and reduced