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GB : Belt Drive Centrifugal Downblast Exhaust Fan

GB : Belt Drive Centrifugal Downblast Exhaust Fan

This belt-driven centrifugal roof exhaust fan is designed for general clean air applications requiring downward discharge toward the roof surface. The spun aluminum housing provides lightweight durability and corrosion resistance, supporting long-term performance in commercial rooftop installations.

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Product Highlights

Airflow (cfm)
70 to 44,700
Maximum Static Pressure (in. wg.)
3.25
Airflow Direction
Exhaust
Installation Type
Roof Mounted
Mounting Location
Outdoor
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Features

Bearings Curb Cap with Mounting Holes Disconnect Switch Drive Assembly Fan Shaft Fan Shroud Galvanized Birdscreen Lifting Points Lower Windband Motor Motor Cooling Motor Cover True Vibration Isolation Wheel
Standard
Optional

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Product Details

Certifications

Seismic

UL/cUL 705 Listed - Supplement SD - "Power Ventilators for Smoke Control Systems" (Formerly UL Smoke)

AMCA licensed for FEI & Air Performance

High Wind and Hurricane

UL/cUL 705
Drive Type

Belt Drive
Housing Construction

Spun Aluminum
Housing Material

Aluminum
Housing Style

Spun Aluminum
Impeller Material

Aluminum
Impeller Type

Centrifugal Wheel
Mounting Orientation

Vertical
Spark Resistance

B

C

Documents

Drawings

Static Model File Type Action Type
Revit icon Revit .RFA
3D CAD 3D CAD .DWG
3D CAD 2D CAD .DWG search icon Search

Media

Centering a Wheel on a Spun Aluminum Rooftop Exhaust Fan

Common Methods for Tensioning a Rooftop Exhaust Fan Belt

Hospital

Office

Restaurant

School

Vari-Green vs. Belt Drive

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