Integral vent limiter simplifies installation by meeting safety standards for indoor venting without extra piping

press-fit connection to the motor shaft

avoiding the need for pipe revisions

or "white tracking" around the box edges

Carrier HD52AR154 Motor 319825-402 Integral vent limiter simplifies installationThe Carrier HD52AR154 Motor is a high efficiency ECM blower motor engineered for precise airflow management in residential HVAC systems. Operating at 120V, this direct drive motor features an integrated electronic control module that allows for variable speed operation, significantly improving SEER ratings compared to standard PSC motors. As an OEM Carrier replacement part, it ensures exact fitment and electrical compatibility, eliminating the