We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

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

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

The Dayton Centrifugal Downblast Roof Exhaust Fan (SKU 3G-OTH-79378) is a direct-drive, clean air fan assembled with a square base and an electronically commutated, open dripproof motor. It includes a drive package…

SKU 3G-OTH-79378

Brand
Dayton
Item
Centrifugal Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack
Category
Clean Air Direct-Drive Fans
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

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, 3/4 hp
Wheel
14 3/4 in
Assembly
Assembled
Base Shape
Square
Motor Type
Electronically Commutated
Drive Package
Includes Drive Package
Motor Enclosure
Open Dripproof
Motor Efficiency
High-Efficiency Motors
Number of Speeds
Variable
Mounting Location
Roof
Nameplate Voltage
208-230V AC
High-Efficiency Motor
Yes
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

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The Dayton Centrifugal Downblast Roof Exhaust Fan (SKU 3G-OTH-79378) is a direct-drive, clean air fan assembled with a square base and an electronically commutated, open dripproof motor. It includes a drive package, operates at variable speeds on 208-230V AC, and delivers exhaust airflow ranges of 2,000 to 4,999 cfm at both 0.000 in SP and 0.500 in SP. This high-efficiency motor unit is designed for roof mounting 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 direct-drive roof exhaust fan designed for clean air applications. It moves 2,000 to 4,999 cfm at low static pressures, making it suitable for general ventilation in commercial or industrial buildings where high static resistance is not present.

What are the specifications of the Dayton roof exhaust fan?

The Dayton has a 14 3/4 in wheel, a 3/4 hp electronically commutated motor, and operates on 208-230V AC. It includes a drive pack, has a square base, and is assembled. Exhaust airflow ranges from 2,000 to 4,999 cfm at both 0.000 in SP and 0.500 in SP.

Where to buy the Dayton roof exhaust fan worldwide?

3G Electric supplies the Dayton roof exhaust fan to customers worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this fan to your facility. Contact us for a quote and delivery options.

How to install a Dayton direct-drive roof exhaust fan?

Install the Dayton on a roof curb or structural support, ensuring the square base is level. Connect the 208-230V AC supply to the electronically commutated motor per local codes. Use the included drive pack for variable-speed control. Always follow the manufacturer's manual for safe installation.

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 direct-drive fans. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
Centrifugal Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 13 3/4 in Wheel, 3/4 hp
Dayton
Centrifugal Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 13 3/4 in Wheel, 3/4 hp
Centrifugal Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 18 1/2 in Wheel, 1 hp, 1
Dayton
Centrifugal Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 18 1/2 in Wheel, 1 hp, 1
Centrifugal Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 13 3/4 in Wheel, 3/4 hp
Dayton
Centrifugal Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 13 3/4 in Wheel, 3/4 hp
Centrifugal Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 8 1/4 in Wheel, 855 cfm
Dayton
Centrifugal Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 8 1/4 in Wheel, 855 cfm
Centrifugal Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 18 1/2 in Wheel, 1 hp, 1
Dayton
Centrifugal Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 18 1/2 in Wheel, 1 hp, 1
Centrifugal Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 13 3/4 in Wheel, 1/2 hp
Dayton
Centrifugal Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 13 3/4 in Wheel, 1/2 hp

More from Dayton

View all Dayton parts
Axial Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 18 in Blade, 2,982 cfm, OAO, 1
Dayton
Axial Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 18 in Blade, 2,982 cfm, OAO, 1
Centrifugal Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 14 3/4 in Wheel, 3/4 hp
Dayton
Centrifugal Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 14 3/4 in Wheel, 3/4 hp
Centrifugal Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 8 in Wheel, 768 cfm, 1
Dayton
Centrifugal Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 8 in Wheel, 768 cfm, 1
Centrifugal Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 8 in Wheel, 495 cfm, 1
Dayton
Centrifugal Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 8 in Wheel, 495 cfm, 1
Centrifugal Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 11 in Wheel, 571 cfm, 1
Dayton
Centrifugal Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 11 in Wheel, 571 cfm, 1
Axial Downblast Roof Supply Fan: 20 in Blade, Direct Drive, Includes Drive Pack, 5,355 cfm, ODP, 1
Dayton
Axial Downblast Roof Supply Fan: 20 in Blade, Direct Drive, Includes Drive Pack, 5,355 cfm, ODP, 1
Centrifugal Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 8 in Wheel, 495 cfm, 1
Dayton
Centrifugal Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 8 in Wheel, 495 cfm, 1
Centrifugal Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 11 in Wheel, 431 cfm, 1
Dayton
Centrifugal Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 11 in Wheel, 431 cfm, 1