Description
The Lennox 16V46 is a factory-specified Electronically Commutated Motor (ECM) designed as a direct OEM replacement for Lennox heating and cooling systems. ECM technology delivers significant energy savings over traditional PSC motors by continuously modulating motor speed to match system demand — reducing electrical consumption and improving comfort throughout the conditioned space.
Key Features
- Motor Type: ECM (Electronically Commutated Motor) for variable-speed, energy-efficient operation
- Horsepower: 1/3 HP
- Speed Range: 250–1,250 RPM for precise, demand-based airflow control
- Rotation: Counter-Clockwise (CCW) — confirm shaft-end orientation before installation
- OEM-specified replacement for compatible Lennox air handlers and furnaces
- Variable-speed operation reduces energy usage compared to single-speed PSC motors
- Quieter operation due to smooth, electronically controlled speed transitions
ECM Advantage
Unlike conventional PSC blower motors, ECM motors use a permanent magnet rotor and integrated electronics to precisely control speed and torque. This results in lower amp draw at part-load conditions, quieter system operation, and improved humidity control during cooling cycles — all critical factors for modern high-efficiency HVAC systems.
Application
- Designed for use in Lennox furnaces and air handler blower assemblies
- Ideal for residential and light commercial HVAC replacement applications
- Always verify OEM part number compatibility with your specific Lennox unit model before ordering
Installation Notes
- Verify CCW shaft rotation matches the existing blower wheel orientation
- ECM motors require compatible control module — confirm module compatibility with your system
- Refer to Lennox service documentation for wiring harness and connector specifications
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