this model is configured without an indexing switch

Enhanced Safety: Continuously monitors for abnormal temperature rises to protect internal components from thermal damage

This capacitor is specifically optimized for the electrical characteristics of NF and TF series

preventing premature burnout during extended operational periods

OEM Compatibility: This genuine Lennox 63W40 is a direct substitute for part 102529-01

Resideo ZD16X18TZ Damper 324846-701 this model is configured withoutThe Resideo ZD16X18TZ is a robust 16" Wide X 18" High parallel blade zone damper engineered for precision airflow control in residential and light commercial HVAC zoning applications. Built with a high grade extruded aluminum frame and blades, this unit is designed for long term durability and low leakage performance. The synchronous motor is a 24Vac power closed spring return open actuator, ensuring a fail safe normally open position during power