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-79219) is a direct-drive, assembled clean air fan with a square base and a 13 1/4 in wheel. It features an electronically commutated, high-efficiency…

SKU 3G-OTH-79219

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, 1/2 hp
Wheel
13 1/4 in
Assembly
Assembled
Base Shape
Square
Motor Type
Electronically Commutated
Drive Package
Includes Drive Package
Motor Efficiency
High-Efficiency Motors
Number of Speeds
Variable
Mounting Location
Roof
Nameplate Voltage
115V AC
High-Efficiency Motor
Yes
Exhaust Airflow @ 0.000 in SP - Range
0 to 1,999 cfm
Exhaust Airflow @ 0.500 in SP - Range
0 to 1,999 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-79219) is a direct-drive, assembled clean air fan with a square base and a 13 1/4 in wheel. It features an electronically commutated, high-efficiency motor rated at 1/2 hp and 115V AC, with variable speed control. The fan delivers exhaust airflow from 0 to 1,999 cfm at both 0.000 in SP and 0.500 in SP, and includes a drive package.

Frequently Asked Questions

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

The Dayton is a clean-air roof exhaust fan designed for general ventilation in commercial or industrial buildings. It removes stale air, odors, and heat from low-static-pressure applications, using a direct-drive, electronically commutated motor for variable-speed control and energy efficiency.

What are the specifications of the Dayton roof exhaust fan?

The Dayton has a 13 1/4 in wheel, a 1/2 hp electronically commutated motor, and 115V AC nameplate voltage. It delivers 0 to 1,999 cfm at both 0.000 in SP and 0.500 in SP. The fan is assembled, has a square base, includes a drive pack, and is for roof mounting only.

Where to buy the Dayton roof exhaust fan worldwide?

You can source the Dayton through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine Dayton components for your ventilation needs.

How to install the Dayton downblast roof exhaust fan?

Install the Dayton on a roof curb or structural support, ensuring the square base is level and sealed. Connect 115V AC power to the electronically commutated motor, and use the variable-speed control for airflow adjustment. Follow local codes and the manufacturer's manual for safe 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 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, 1/6 hp
Dayton
Centrifugal Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 13 3/4 in Wheel, 1/6 hp
Centrifugal Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 11 in Wheel, 1,462 cfm, 1
Dayton
Centrifugal Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 11 in Wheel, 1,462 cfm, 1
Centrifugal Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 11 in Wheel, 1,462 cfm, 1
Dayton
Centrifugal Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 11 in Wheel, 1,462 cfm, 1
Centrifugal Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 8 in Wheel, 203 cfm, 1
Dayton
Centrifugal Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 8 in Wheel, 203 cfm, 1
Centrifugal Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 11 in Wheel, 966 cfm, 1
Dayton
Centrifugal Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 11 in Wheel, 966 cfm, 1
Centrifugal Upblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 8 1/4 in Wheel, 197 cfm
Dayton
Centrifugal Upblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 8 1/4 in Wheel, 197 cfm

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
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, 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 Exhaust Fan: Direct Drive, Includes Drive Pack, 24 in Blade, 5,091 cfm, OAO, 1
Dayton
Axial Downblast Roof Exhaust Fan: Direct Drive, Includes Drive Pack, 24 in Blade, 5,091 cfm, OAO, 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