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High Wind and Hurricane Zone Fans
Withstands winds up to 150 MPH
The Greenheck Models H-G and H-GB are downblast roof exhaust fans. Applications include general clean air and light
moisture exhaust. The downblast design is ideal for all applications where air is discharged directly onto the roof surface.
Models H-G and H-GB have been specifi cally designed for high wind and extreme weather applications. Structural bracing on
the interior of the fan, tabbed and riveted curb cap corners, and high strength materials provide the added strength required to
withstand winds of up to 150 MPH. Standard with a 12 inch (305 mm) tall H-GPF curb, no tie downs to the roof are required.
(Other curb options are available.)
The Greenheck Models H-CUE and H-CUBE are upblast roof exhaust fans. Applications include restaurant exhaust and mild
contaminants. The upblast design is ideal for all applications where it is important to discharge air away from the roof surface.
Models H-CUE and H-CUBE have been specifi cally designed for high wind and extreme weather applications. Structural
bracing on the interior and exterior of the fan, tabbed and riveted curb cap corners, and high strength materials provide the
added strength required to withstand winds of up to 150 MPH. Standard with a 12 inch (305 mm) tall H-GPF curb, no tie downs
to the roof are required. (Other curb options are available.)
Performance: For full performance listings refer to the H-G and H-GB
Catalog.
• Air performance up to 14,000 CFM (24,000 m
3
/hr).
• Pressure range from 0-2.75 inches wg (0-700 Pa).
• All fan sizes are tested in our AMCA Accredited Laboratory, and all models
are licensed to bear the AMCA sound and air performance seal.
Standard Construction
• Internal Bracing - High strength internal support structure and bracing.
• Shroud - Heavy gauge reinforced drawn shroud with integral rolled bead
for consistent material thickness and strength.
• Drive Assembly - Motor and drive frame are isolated from the airstream and
mounted on true vibration isolators, and sized for 150% of maximum driven
horsepower. (No steel to steel contact)
• Bearings - Pillow block design selected for a minimum average L10 life in
excess of 100,000 hours (L50 life of 500,000 hours) at maximum cataloged
speed.
• Disconnect - NEMA-1 disconnect is mounted and wired from the factory.
Performance: For full performance listings refer to the H-CUE and
H-CUBE Catalog.
• Air performance up to 14,700 CFM (25,000 m
3
/hr).
• Pressure range from 0-5 inches wg (0-1,250 Pa).
• All fan sizes are tested in our AMCA Accredited Laboratory, and all models
are licensed to bear the AMCA sound and air performance seal.
Standard Construction
• Internal Bracing - Additional high strength internal bracing structure.
• External Bracing - Integral high strength mounted external bracing.
• Windband - Heavy gauge one piece windband with integral rolled bead,
100% welded to an aluminum curb cap.
• Drive Assembly - Motor and drive frame are isolated from the airstream
and mounted on true vibration isolators, and sized for 150% of maximum
driven horsepower.
• Bearings - Bearings are pillow block design selected for a minimum
average L10 life in excess of 100,000 hours (L50 life of 500,000 hours) at
maximum cataloged speed.
• Disconnect - NEMA-1 disconnect is mounted and wired from the factory.
•
Curb Cap - Heavy gauge with pre-punched mounting holes.
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