Greenheck Fan Centrifugal Roof Downblast Exhaust Fans GB - Manual (Page 51)

51
High Wind Specifications
Fans shall meet all Greenheck wind load
standards and shall contain the following
third-party certifications:
• Miami-Dade NOA# 12-0120.13
• Licensed P.E. calculations shall be available for
fan per ASCE 7-05 Minimum Design Loads for
Buildings and Other Structures for exposure Class
C, 60 foot building height, and a type II building.
• Fan shall be tested in accordance with ASTM
E-330-02 Structural Performance of Exterior
Windows, Doors, Skylights and Curtain Walls by
Uniform Static Air Pressure Difference and Florida
Building Code Test Protocol TAS-201, 202 and 203
at the ASCE 7-05 calculated design pressure.
• Licensed P.E. calculations for attachment of fan to
curb shall be available for ASCE 7-05 determined
design pressure.
• All calculations and testing shall be done by a
state licensed P.E., and a certified test lab.
Fans shall be Greenheck model GB, as specified on
page 50, with high wind-resistant construction option
and manufactured by Greenheck Fan Corporation in
Schofield, Wisconsin, USA.
Belt Drive, Severe Duty
Specifications
Model GB
Seismic Specifications
Fans shall meet International Building Code (IBC)
2009, 2012 and the California Office of Statewide
Health Planning and Development (OSHPD)
requirements for seismic certifications as listed.
• All Greenheck seismically certified models shall
be tested to the most severe seismic event on
the Spectral Response Map per IBC Figures
1613.5 (1-2). Testing shall be performed under the
worst case scenario, using the highest mapped
seismic load, highest level occupancy category,
worst case site class, and highest code mandated
importance factor.
• Fans shall be shake table tested in accordance
with ICC ES AC-156, in which the fans are
physically subjected to the same or greater forces
as experienced during a seismic event.
• For applications which are not covered by
California OSHPD standards, Greenheck seismic
model GB shall be certified by a third party
engineering firm to IBC 2009, 2012 and ASCE
7-05 standards.
• Greenheck seismic model GB has been certified to
IBC 2009, 2012, ASCE 7-05 and California OSHPD
standards through engineering calculations and
shake table testing of all models by independent
third party engineering firms.
Fans shall be Greenheck model GB, as specified
on page 50, with seismic rated construction option
and manufactured by Greenheck Fan Corporation in
Schofield, Wisconsin, USA.
Smoke Control Specifications
• Fans wheel shall be centrifugal backward-inclined,
constructed of steel and shall include a wheel cone
carefully matched to the inlet cone for precise
running tolerances.
• Dual drives shall be sized for a minimum of 150%
of driven horsepower.
• A NEMA-3R disconnect switch shall be factory
installed and wired from the fan motor to a junction
box installed outside the motor compartment.
• Fans shall be Listed by Underwriters Laboratory for
UL/cUL 705 for electrical components and UL/cUL
Listed for Emergency Smoke Control Systems
[500°F (260°C) for 4 hours and 1,000°F (538°C)
for 15 minutes].
Fans shall be Greenheck model GB, as specified on
page 50, with smoke control rated construction option
and manufactured by Greenheck Fan Corporation in
Schofield, Wisconsin, USA.