Dayton Axial Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 24 in Blade
The DAYTON Axial Downblast Roof Exhaust Fan (MPN 7A421) is a belt-drive, clean-air fan for industrial and commercial applications. It includes a drive package, has a 24-inch blade, and delivers exhaust airflow up to…
SKU 3G-OTH-79880
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Product Description
The DAYTON Axial Downblast Roof Exhaust Fan (MPN 7A421) is a belt-drive, clean-air fan for industrial and commercial applications. It includes a drive package, has a 24-inch blade, and delivers exhaust airflow up to 4,834 cfm at 0.000 in SP. The fan features an open dripproof motor enclosure, operates on 208-220/440V AC, and is supplied unassembled with a square base for roof mounting.
Frequently Asked Questions
What is the DAYTON 7A421 axial downblast roof exhaust fan used for?
The DAYTON 7A421 is a belt-drive axial downblast roof exhaust fan designed for industrial and commercial applications requiring clean air removal. It mounts on a roof with a square base and delivers up to 4,834 cfm, making it suitable for general ventilation in factories, warehouses, and commercial buildings.
What are the specifications of the DAYTON 7A421 roof exhaust fan?
The DAYTON 7A421 features a 24-inch blade, belt drive with included drive pack, and an open dripproof motor enclosure. It operates on 208-220/440V AC, delivers 4,834 cfm at 0.000 in SP, and is supplied unassembled for roof mounting. The motor is standard-efficiency, single-speed, and designed for clean air only.
Where to buy the DAYTON 7A421 roof exhaust fan worldwide?
3G Electric supplies the DAYTON 7A421 axial downblast roof exhaust fan to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this belt-drive fan for industrial and commercial ventilation.
How to install the DAYTON 7A421 unassembled roof exhaust fan?
The DAYTON 7A421 is supplied unassembled and requires field assembly of the fan housing, drive pack, and motor. Follow the manufacturer's manual for proper belt tensioning and alignment. Mount the square base securely on a roof curb, ensure electrical connections match the 208-220/440V AC supply, and verify clean air conditions before operation.
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3G Electric supplies Dayton clean air belt-drive fans with drive. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















