Centrifugal Roof Exhaust Fans
The Centrifugal Roof Exhaust Fans include both direct and belt driven fans with backward inclined centrifugal wheels. The fans feature double studded isolators for true vibration isolation. The fans are a downblast configuration and are suitable for roof mounted applications exhausting relatively clean air.

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What's New
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Application Information
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Project Profiles
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Other Product Information
Overview
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Models G/GB
The housing available is a spun aluminum style. Capacities range from 50 to 45,000 cfm and up to 3.25 in. wg.
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Models H-G/H-GB
These spun aluminum fans are designed specifically for exhausting general clean air in high wind and hurricane zones. These roof mounted fans are third party certified to 150 MPH wind loads with no tie downs to the roof. Capacities range from 50 to 14,500 cfm and up to 3.25 in. wg.
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Models LD/LB
These fans are designed for exhausting general clean air where height and looks are a concern. The housing is a low silhouette style with interlocking rib construction, providing superior strength. Formed channels adjacent to the ribs provide water drainage to ensure weather tightness. Hoods have hinged galvanized steel supports for service access. Capacities range from 100 to 37,500 cfm and up to 2.0 in. wg.
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Models LDP/LBP
These fans are designed for exhausting general clean air where aestheics are a concern. The housing is a louvered penthouse style that features extruded aluminum louvers. The hood cover is aluminum and hingeable for service access. Capacities range from 100 to 37,500 cfm and up to 2.0 in. wg.
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Models NYD/NYB
These fans feature a tamper resistant housing while also allowing ease of access for service. Capacities range from 200 to 8,000 cfm and up to 1.0 in. wg.
Catalogs
Instruction Manuals
- GreenVent Constant Pressure Controls (#472864 IOM)
- Model G/GB (#471558 IOM)
- Model H-G/H-GB (#471559 IOM)
- Model LD/LDP/LB/LBP (#453283 IOM)
- Model NYD/NYB (#463277 IOM)