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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 3G-OTH-81175. It features a 26 1/2-inch wheel, delivers 7,491 cfm, and operates on 208-230/460V AC with a…

SKU 3G-OTH-81175

Brand
Dayton
Item
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack
Category
Clean Air Belt-Drive Fans with Drive
Available to Order
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

Dayton
Type
Includes Drive Pack, 7,491 cfm
Wheel
26 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
208-230/460V AC
High-Efficiency Motor
No
Exhaust Airflow @ 0.000 in SP - Range
5,000 to 10,000 cfm
Exhaust Airflow @ 0.500 in SP - Range
5,000 to 10,000 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 is a belt-drive clean air fan with drive package, model 3G-OTH-81175. It features a 26 1/2-inch wheel, delivers 7,491 cfm, and operates on 208-230/460V AC with a single-speed, open dripproof motor. This unassembled, square-base 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 7AU85 centrifugal downblast roof exhaust fan used for?

The Dayton 7AU85 is a belt-drive roof exhaust fan designed for clean-air ventilation in commercial and industrial buildings. It moves up to 7,491 cfm through a 26 1/2-inch wheel, making it suitable for general exhaust applications where high static pressure is not required.

What are the specifications of the Dayton 7AU85 roof exhaust fan?

The Dayton 7AU85 features a 26 1/2-inch wheel, delivers 7,491 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 designed for roof mounting. It is not for high-static-pressure applications.

Where to buy the Dayton 7AU85 roof exhaust fan worldwide?

3G Electric supplies the Dayton 7AU85 centrifugal downblast roof exhaust fan to customers worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and a quote.

How to install the Dayton 7AU85 belt-drive roof exhaust fan?

Installation requires assembling the unassembled unit, mounting it on a roof curb with a square base, and connecting the 208-230/460V AC power supply. Ensure the belt drive is tensioned per Dayton's guidelines and that the open dripproof motor has adequate airflow. Always follow local codes and the manufacturer's manual.

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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