Greenheck BSQ User Manual
Seismic Solutions
Fan Ratings Information
December
2010
Seismic Rated Fans
Model
G/GB
CUE/CUBE
S-CUBE
USGF CW/CWB SQ/BSQ RSF/RSFP RBUMO R Series
SFD/SFB
SWB
AFSW/BISW AFDW/BIDW QEI/QEID QEM/QEP LFC Vektor-H
Exhaust
or Supply
Exhaust Exhaust Exhaust Exhaust
Exhaust or
Supply
Supply Exhaust
Exhaust or
Supply
Exhaust or
Supply
Exhaust or
Supply
Exhaust or
Supply
IBC 2006
IBC 2009
Certified
YES YES YES YES YES YES YES YES YES YES YES YES YES YES
OSHPD, OSP
Number
— — — —
0113-10 0113-10 0113-10 0113-10 0113-10 0113-10
—
SDS Value
2.28 2.28 2.28 2.28 2.28 2.28 2.28 2.28 2.28 2.28 2.28 2.28 2.28 1.50 2.28
Maximum
Certification
Size
540 480 200 300 420 200 60 72
SWB 236
SFD - 10
SFB - 30
73-AFSW
73-BISW
Class II
73-AFDW
73-BIDW
Class III
Numbers are pending*
Overview
The International Building
Code (IBC) is designed to provide model
code regulations that safeguard public health
and safety in communities across the United
States. The 2006 IBC is the latest version of
outlined standards intended to improve the
performance and design of non-structural
systems subject to seismic events.
The Office of Statewide Health Planning
and Development (OSHPD) is one division
within the California Health and Human
Services Agency assigned to assure the
safety of health care buildings. Though
OSHPD enforces building standards for health
care facilities per the California Building
Code (CBC), this code closely reflects the
standards presented by the IBC.
Standards in the IBC and the CBC expand the
emphasis for position retention of equipment
and emphasize maintaining equipment
functionality following a seismic event.
As an industry leader, Greenheck
manufactures seismic certified products that
maintain structural integrity during and after
a seismic event.
Basic information on seismic certification
and how our products meet these needs are
provided here.
Structural
Finite Element
Analysis of GB Fan
* Final certification due to be completed by March of 2011
Who needs Seismic Certification?
Seismic requirements for a project are made when the
structural engineer assigns a seismic rating to the building.
This rating should be stated on the structural plans. Unless
noted otherwise, non-structural components (which include
mechanical equipment) are assigned the same seismic
requirements as the building. The 2009 IBC states:
Every structure, and portion thereof, including non-structural
components that are permanently attached structures and their
supports and attachments, shall be designed and constructed to
resist the effects of earthquake motions in accordance with ASCE-7.
This includes components required to function for life-safety
purposes or components in essential facilities where failure
could impair continued operation of the facility after a seismic
event (Importance Factor of 1.5).
How are Greenheck products
seismically certified?
Section 1708.4.1 of the 2009 IBC, Seismic certification of
non-structural components, states:
Certification shall be based on an actual test on a shake table,
by three-dimensional shock tests, by an analytical method using
dynamic characteristics and forces, by the use of experience data
(i.e., historical data demonstrating acceptable seismic performance)
or by more rigorous analysis providing for equivalent safety.
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Seismic Certifications
SFD/SFB
SWB
AFSW/BISW AFDW/BIDW QEI/QEID QEM/QEP LFC Vektor-H
Exhaust or
Supply
Supply Exhaust
Exhaust or
Supply
Exhaust or
Supply
Exhaust or
Supply
Exhaust or
Supply
Exhaust or
Supply
Exhaust or
Supply
Fan Coil
Laboratory
Exhaust
Consult
Factory
0113-10 0113-10 0113-10 0113-10 0113-10 0113-10
—
Consult
Factory
—
0105-10
Consult
Factory
SWB 236
SFD - 10
SFB - 30
73-AFSW
73-BISW
Class II
73-AFDW
73-BIDW
Class III
QEI-54
QEID-54
QEM-36
QEP-73
85L VK-H-36
To meet the 2006 IBC, 2009 IBC and OSHPD
requirements, Greenheck’s seismic certified fans
have been shake table tested at an independent test
facility. This is in accordance with ICC-ES AC 156
and under the responsible charge and review of a
California Structural Engineer. The tests simulate the
most severe seismic conditions anywhere in the United
States and include the most severe spectral response
accelerations, an Importance Factor of 1.5, all Site
Classes, all Occupancy Categories, and all Seismic
Design Categories.
Because these units are physically subjected to the
same forces produced during an earthquake, you’re
assured they will operate after a seismic event without
problems—thus allowing Greenheck Seismically
certified fans to be used anywhere in the United States.
While OSHPD standards were originally developed
for health care facilities, they are also being required
on projects outside of health care when specifying
engineers and building owners want to ensure certified
equipment is received. Equipment that’s passed
OSHPD Special Seismic Certification Pre-approval
(OSP), is listed on the OSHPD website providing
engineers with a convenient source for seismic
certified equipment.
Note: Greenheck’s seismically certified equipment is
summarized above.
Fan mounting packages
Seismically rated GPF and severe duty (SD) curbs are
offered on all curb mounted models to provide you with
a complete seismic solution. On non-curb mounted
models, individually sized and seismically certified
isolators can be provided for each individual fan based
on weight and size requirements.
Seismic Solutions
Greenheck Fan Corporation adheres to rigorous
testing standards and strives to
provide the most
comprehensive
selection
of equipment
available to
address the
HVAC industry’s
seismic needs.
The submittal
process is simple—
the consulting
engineer just
needs to specify
IBC or OSHPD
seismic compliant
equipment.
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PHOTO BY ANCO ENGINEERS, INC.
73-AFSW fan being shake table tested..
Fan Models
Model G and GB
Centrifugal Roof Exhaust
G (direct drive) and GB (belt drive) are centrifugal roof exhaust fans
designed specifically for seismic applications. The downblast design is
ideal for general clean air applications where air is discharged directly onto
the roof surface. Certified to IBC 2006 and 2009, ASCE 7-05 and California
OSHPD certification standards for all seismic design categories.
Model CUE, CUBE, S-CUBE, USGF, CW and CWB
Centrifugal Upblast Exhaust
CUE (direct drive), CUBE and S-CUBE (belt drives)
Upblast roof exhaust fans designed specifically for seismic applications.
The upblast design is ideal for restaurant (grease laden), general clean air,
smoke and mild contaminates (fume hood) where air is discharged away
from the mounting surface. Certified to IBC 2006 and 2009, ASCE 7-05
and California OSHPD certification standards for all seismic
design categories.
CW/CWB
These spun aluminum fans are specifically designed for sidewall mounted
applications. General clean or lightly contaminated exhaust air can be
discharged directly away from the mounting surface. Certified through
analysis to IBC 2006 and 2009 and ASCE 7-05 certification standards
for all seismic design categories.
USGF (belt drive)
The only spun steel fan in the industry for heavy-grease applications (as
stated in NFPA96 Vapor Removal from Cooking Equipment). Specifically
designed for severe grease applications, to remove high amounts of grease
and/or solid fuels and to discharge air directly away from the mounting
surface. Seismic certified through analysis to IBC 2006 and 2009 and
ASCE 7-05 certification standards for all seismic design categories.
Model SQ and BSQ
Centrifugal Inline Fans
SQ (direct drive) and BSQ (belt drive) are backward inclined centrifugal
fans designed for clean air applications (intake, exhaust, return or make-up
air systems) where space is a prime consideration. Multiple mounting and
discharge options allow for flexibility in design and installation. Certified
to IBC 2006 and 2009, ASCE 7-05 and California OSHPD certification
standards for all seismic design categories.
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