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Dayton - Direct Drive Axial Downblast Roof Exhaust Fan (4YC48)

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This direct drive axial downblast roof exhaust fan is engineered for clean air ventilation in industrial and commercial environments. Featuring a 16-inch aluminum blade and spun aluminum housing, it includes a drive package for straightforward installation. The direct drive design reduces friction, increases efficiency, and minimizes maintenance by eliminating belts and pulleys. The fan is assembled and ready for roof curb mounting, providing reliable airflow up to 1,999 cfm. Its open air over motor enclosure and weather-resistant construction make it suitable for demanding rooftop applications.

This direct drive axial downblast roof exhaust fan is engineered for clean air ventilation in industrial and commercial environments. Featuring a 16-inch aluminum blade and spun aluminum housing, it includes a drive package for straightforward installation. The direct drive design reduces friction, increases efficiency, and minimizes maintenance by eliminating belts and pulleys. The fan is assembled and ready for roof curb mounting, providing reliable airflow up to 1,999 cfm. Its open air over motor enclosure and weather-resistant construction make it suitable for demanding rooftop applications.

PDFDayton Axial Direct-Drive Downblast Ventilators Manual
PDFExploded View Fan Assembly Diagram

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Manual for Direct Drive Axial Downblast Roof Exhaust Fan (4YC48)

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