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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 (SKU 3G-OTH-81642) is a belt-drive clean air fan with a drive package, designed for roof mounting. It features a 16 3/4 in wheel, delivers 3,249 cfm, and operates on…

SKU 3G-OTH-81642

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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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

Dayton
Type
Includes Drive Pack, 3,249 cfm
Wheel
16 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
208-230/460V 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

Technical Documents

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

Product Description

The Dayton Centrifugal Downblast Roof Exhaust Fan (SKU 3G-OTH-81642) is a belt-drive clean air fan with a drive package, designed for roof mounting. It features a 16 3/4 in wheel, delivers 3,249 cfm, and operates on 208-230/460V AC with a single-speed, standard-efficiency, open dripproof motor. This unassembled unit has a square base and is not intended for high-static-pressure applications.

Frequently Asked Questions

What is the Dayton centrifugal downblast roof exhaust fan used for?

The Dayton is a belt-drive clean air roof exhaust fan designed for general ventilation in commercial or industrial buildings. It moves 3,249 cfm at low static pressure, making it suitable for exhausting non-corrosive air from rooftops where high static resistance is not required.

What are the specifications of the Dayton roof exhaust fan?

The Dayton has a 16 3/4 in wheel, delivers 3,249 cfm, and operates on 208-230/460V AC with a single-speed, open dripproof motor. It includes a drive package, has a square base, is unassembled, and is not for high-static-pressure applications.

Where to buy the Dayton roof exhaust fan worldwide?

3G Electric supplies the Dayton centrifugal 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 a quote and lead time on this belt-drive fan.

How to install the Dayton unassembled roof exhaust fan?

The Dayton ships unassembled and requires field assembly of the drive package, wheel, and motor. Follow the manufacturer's manual for proper belt tensioning and alignment. Mount on a roof curb with a square base, ensure electrical connections match the 208-230/460V AC supply, and verify free rotation before startup.

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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Cross-referenced by specification & description
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 16 3/4 in Wheel, 3,249 cfm
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Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 16 3/4 in Wheel, 3,249 cfm
Belt-drive centrifugal downblast roof exhaust fan with square base, includes drive package. Unassembled unit with open dripproof, standard-efficiency motor (115/230V AC, single speed). Delivers 4,062 cfm at low static pressures, suitable for general ventilation in commercial or industrial buildings
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Belt-drive centrifugal downblast roof exhaust fan with square base, includes drive package. Unassembled unit with open dripproof, standard-efficiency motor (115/230V AC, single speed). Delivers 4,062 cfm at low static pressures, suitable for general ventilation in commercial or industrial buildings
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 16 3/4 in Wheel, 2,555 cfm
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Belt-drive centrifugal downblast roof exhaust fan for general ventilation in commercial or industrial buildings. Includes drive package, open dripproof standard-efficiency motor, 115/208-230V AC single-speed. Delivers 3,692 cfm at low static pressures; unassembled square base. Not for high-static-pressure applications
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Belt-drive centrifugal downblast roof exhaust fan for general ventilation in commercial or industrial buildings. Includes drive package, open dripproof standard-efficiency motor, 115/208-230V AC single-speed. Delivers 3,692 cfm at low static pressures; unassembled square base. Not for high-static-pressure applications
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 16 3/4 in Wheel, 3,692 cfm
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Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 16 3/4 in Wheel, 3,692 cfm

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