it features a 6-pole design and is the professional standard for replacing legacy units like the Nordyne 621830R

this model is technically validated for use with both R134a and R513A refrigerants

this double inlet blower wheel utilizes 43 blades and a convex disc design to optimize cfm output and maintain system static balance

Designed for single-phase scroll digital compressors

OEM Compatibility: Exact fit for Rheem and Ruud outdoor units

Lochinvar & A.O. Smith 100187877 Blower Assembly 318820-201 it features a 6-pole designAs a technician, you know that maintaining precise air to fuel ratios is non negotiable for high efficiency combustion systems. The Lochinvar & A. O. Smith 100187877 Blower Assembly is a critical OEM component designed specifically for high efficiency gas water heaters and condensing boilers. This assembly features an integrated Hall Effect sensor, providing the HVAC control board with real time RPM feedback to ensure optimal airflow regulation and