High wind and hurricane zone fans, Clean air exhaust fans – Greenheck Fan H-GB User Manual
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The Greenheck models H-G and H-GB are high wind spun aluminum
downblast powered roof exhaust fans. Applications include general clean
air and slight moisture exhaust. The downblast design is ideal for all
applications where air can be discharged directly onto the roof surface.
Models H-G and H-GB have been specifically designed for high wind and
extreme weather applications. The fans have been tested in accordance
with Miami-Dade standards TAS-202 and are certified. 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 tall H-GPF
curb, no tie downs to the roof are required. Other curb options are
available from 8 to 24 inches in height.
Performance:
For full performance listings refer to the H-G and H-GB catalog
• Air performance is AMCA certified up to 14,000 cfm
• Pressure range from 0-2.75 inches wg
• Units are licensed to bear the AMCA seal for sound and air
Certifications:
Third party certifications
• Miami-Dade County Approval NOA# 07-0503.07
Standard Construction
•
Shroud:
Drawn shroud with integral rolled bead for consistent
material thickness and strength
•
Internal Bracing:
High strength internal support structure and
bracing
•
Drive Assembly:
Motor and drive frame are isolated from the
airstream, 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 of 100,000 hours (basic L50 life in
excess of 500,000 hours) at maximum cataloged speed
•
Disconnect:
NEMA-1 disconnect is mounted and wired from the factory
High Wind and Hurricane Zone Fans
Clean Air Exhaust Fans