
Centrifugal Downblast Exhaust Fans
Roof-mounted centrifugal downblast exhaust fans include direct- and belt-driven fans. These models have backward-inclined centrifugal wheels. These fans are suitable for applications exhausting relatively clean air.
OVERVIEW

G
The model G is a direct drive, spun aluminum fan, designed for roof mounting on a curb for general, clean air exhaust applications. Units feature a spun aluminum housing and have certifications including seismic, high wind and hurricane.
- 50 to 14,500 cfm
- Up to 2.75 in. wg.

GB
Use this belt drive centrifugal roof exhaust fan for general clean air applications where the air discharge is downward, toward the roof surface. The GB features a spun aluminum housing..
- 70 to 44700 cfm
- Up to 3.25 in. wg.

LB
Model LB is a belt drive, fabra hood-style fan, designed for roof mounting in clean air exhaust applications, where height and aesthetics are a concern. The units feature a backward-inclined wheel, with a low silhouette housing.
- 950 to 37500 cfm
- Up to 2.125 in. wg.

LBP
This belt drive, roof-mounted fan is ideal for clean air exhaust applications where aesthetics are a concern. An LBP features a backward-inclined wheel and a louvered penthouse style housing.
- 925 to 37500 cfm
- Up to 2.125 in. wg.
- Catalogs
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Instruction Manuals
- Model G/GB (#471558 IOM)
- Modelo GB (Spanish #453005 IOM)
- Model G/GB (#479822 IOM) (English and Arabic)
- Model LD/LDP/LB/LBP (#453283 IOM)
- Bracket Hinge Kit (#485064 IOM)
- Hinge Kit Sizes 075-203 (#462866 IOM)
- Hinge Kit Sizes 220-540 (#462865 IOM)
- Hinged Curb Latch Kit (#481944 IOM)
- Vari-Green Control - Constant Pressure/Airflow Control (#479653 IOM)
- Vari-Green Control - Indoor Air Quality - Temp/Humidity (#475573 IOM)
- Vari-Green Control - Indoor Air Quality - VOC (#475407 IOM)
- Vari-Green Control - Universal Assemblies (#475699 IOM)
- Vari-Green Drive (#481200 IOM)
- Vari-Green Motor and Controls (IOM# 473681)
- Specifications
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Drawings
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STATIC MODEL DOWNLOAD3D CAD2D CAD
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GGBLBLBP
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- Application Information
- Videos
- Other Product Information
- Warranty
- Project Profiles