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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-78745) is a belt-drive clean air fan with a drive package, designed for roof mounting. It features an unassembled square base, an open dripproof motor…

SKU 3G-OTH-78745

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, 2,523 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
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-78745) is a belt-drive clean air fan with a drive package, designed for roof mounting. It features an unassembled square base, an open dripproof motor enclosure, and standard-efficiency motors with a single speed. The fan operates at 2,523 cfm with a 14 3/4-inch wheel and a nameplate voltage of 208-230/460V AC.

Frequently Asked Questions

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

The Dayton is a belt-drive roof exhaust fan designed for clean-air ventilation in commercial and industrial buildings. It removes stale air, heat, or fumes from roof-mounted systems, operating at 2,523 cfm with a 14 3/4-inch wheel. Typical applications include warehouses, factories, and assembly plants where reliable general exhaust is needed.

What are the specifications of the Dayton roof exhaust fan?

The Dayton is a belt-drive downblast fan with a square base, unassembled for field installation. It includes a drive package, open dripproof motor enclosure, and standard-efficiency single-speed motor. Nameplate voltage is 208-230/460V AC. Exhaust airflow ranges from 2,000 to 4,999 cfm at both 0.000 and 0.500 in SP. It is not for high-static-pressure applications.

Where to buy the Dayton exhaust fan worldwide?

3G Electric supplies the Dayton centrifugal downblast roof exhaust fan to customers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time. We source and deliver this Dayton fan to any international destination.

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

The Dayton ships unassembled and requires field assembly of the drive package, motor, and wheel. Mount the square base on a roof curb, ensuring proper sealing against weather. Align belt and pulleys per Dayton's manual, and wire the 208-230/460V AC motor to a suitable disconnect. Always follow local electrical codes and use a licensed contractor.

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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