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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-81659) is a belt-drive clean air fan with drive package, unassembled, featuring a square base and an 18 1/2-inch wheel. It delivers 4,608 cfm of exhaust…

SKU 3G-OTH-81659

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, 4,608 cfm
Wheel
18 1/2 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
208-230/440V 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-81659) is a belt-drive clean air fan with drive package, unassembled, featuring a square base and an 18 1/2-inch wheel. It delivers 4,608 cfm of exhaust airflow, with a range of 2,000 to 4,999 cfm at both 0.000 and 0.500 inches of static pressure. The fan includes an open dripproof, standard-efficiency motor rated for 208-230/440V AC, single speed, and is designed for roof mounting, not for high-static-pressure applications.

Frequently Asked Questions

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

This belt-drive fan is designed for roof-mounted exhaust of clean air in commercial or industrial buildings. It moves up to 4,608 cfm at low static pressures (0.000 to 0.500 in SP) and is not intended for high-static-pressure duct systems.

What are the specifications of the Dayton roof exhaust fan?

The Dayton has an 18 1/2-inch wheel, delivers 4,608 cfm, and includes a drive package. It uses an open dripproof, standard-efficiency motor rated 208-230/440V AC, single speed. The fan is unassembled with a square base for roof mounting.

Where to buy the Dayton roof exhaust fan worldwide?

3G Electric supplies the Dayton Centrifugal Downblast Roof Exhaust Fan to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time.

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

Installation requires assembling the unassembled fan per Dayton's manual, mounting it on a roof curb, and connecting the 208-230/440V AC motor to a properly sized circuit. Ensure the belt drive is tensioned correctly and the wheel rotates freely before operation.

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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