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Dayton Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack - Clean Air Belt-Drive Fans with Drive
DaytonClean Air Belt-Drive Fans with Drive

Dayton Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack

The Dayton Centrifugal Downblast Roof Exhaust Fan is a belt-drive clean air fan with drive package, model 7A557. It features a 14 3/4-inch wheel, delivers 2,866 cfm, and operates on 115/208-230V AC with a…

SKU 3G-OTH-81250

Brand
Dayton
Item
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack
Category
Clean Air Belt-Drive Fans with Drive
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Technical Specifications

Dayton
Manufacturer Part Number
7A557
Type
Includes Drive Pack, 2,866 cfm
Wheel
14 3/4 in
Assembly
Unassembled
Base Shape
Square
Drive Package
Includes Drive Package
Motor Enclosure
Open Dripproof
Motor Efficiency
Standard-Efficiency Motors
Number of Speeds
1
Mounting Location
Roof
Nameplate Voltage
115/208-230V AC
High-Efficiency Motor
No
Exhaust Airflow @ 0.000 in SP - Range
2,000 to 4,999 cfm
Exhaust Airflow @ 0.500 in SP - Range
2,000 to 4,999 cfm
For High-Static Pressure Applications
No
View Full Spec Sheet

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Dayton Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Dayton Centrifugal Downblast Roof Exhaust Fan is a belt-drive clean air fan with drive package, model 7A557. It features a 14 3/4-inch wheel, delivers 2,866 cfm, and operates on 115/208-230V AC with a single-speed, open dripproof motor. This unassembled unit is designed for roof mounting and is not for high-static-pressure applications.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the Dayton Centrifugal Downblast Roof Exhaust Fan used for?

The Dayton Centrifugal Downblast Roof Exhaust Fan is used for general clean-air ventilation in commercial and industrial buildings. It is designed for roof mounting to exhaust stale air, heat, or fumes from spaces like warehouses, factories, and assembly areas. This belt-drive model is not intended for high-static-pressure applications.

What are the specifications of the Dayton 7A557 roof exhaust fan?

The Dayton 7A557 is a belt-drive downblast roof exhaust fan with a 14 3/4-inch wheel delivering 2,866 cfm. It operates on 115/208-230V AC with a single-speed, open dripproof motor. The unit is unassembled, has a square base, includes a drive package, and is for roof mounting only.

Where to buy the Dayton 7A557 roof exhaust fan worldwide?

You can source the Dayton 7A557 roof exhaust fan through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we provide competitive sourcing for this Dayton model.

How to install the Dayton belt-drive roof exhaust fan?

Install the Dayton belt-drive roof exhaust fan on a structurally sound roof curb with proper flashing. Assemble the unassembled unit per the manufacturer's manual, ensuring belt tension and alignment are correct. Connect to 115/208-230V AC power and verify rotation direction. Always follow local codes and use a licensed electrician.

Used in

Common applications for Dayton
HVAC ventilation — DAYTON centrifugal upblast roof exhaust fans (SKU 7M7U3) for kitchen exhaust systems
Mechanical power transmission — DAYTON HTD timing pulleys (SKU 404GV0) for conveyor belt drives
Process water handling — DAYTON self-priming centrifugal pumps (SKU 2ZXT4) for dewatering or transfer
Roofing and building services — DAYTON fixed ventilated roof curbs (SKU 4HX59) for filtered supply fan installations
Material handling — DAYTON latch assemblies (SKU 2KEN4) for electric chain hoist hook safety
Industrial air movement — DAYTON downblast roof exhaust fans (SKU 3HFL9) for clean air exhaust in manufacturing plants

Dayton Products

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.

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