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June 20, 2004

                               ET NEWS                                
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             NEWS AND INFORMATION FOR THE ENGINEERING TEAM            
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Issue No. 156   http://etnews.org   mailto:mike@etnews.org   6-20-2004
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Contents
--------
- News
- ET News Journal
- Job Opportunities
- Fire Alarm Class Schedule
- Comments & Acknowledgements

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NEWS 
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PHOENIX Adopts International Codes to Safeguard Public, Property U.S. Newswire
(press release) - Washington,DC,USA ... June 17 /US Newswire/ -- The Phoenix
City Council Wednesday night approved the I-Codes developed by the International
Code Council as the building safety codes ...
http://releases.usnewswire.com/GetRelease.asp?id=144-06172004

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THE Unexpected Golf Cart Hazard
Firehouse.com (subscription) - USA
It?s just after midnight when the alarm sounds for a carbon monoxide detector
activation. Dispatch reports that the residents have left the home. ...
http://cms.firehouse.com/content/article/article.jsp?sectionId=5&id=31665

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CITY Council should heed panel on building standards
Arizona Republic - Phoenix,AZ,USA
... Whatever its attributes, there is but one relevant fact the public needs to
know about the NFPA 5000 codebook: It is in full use in but one other community
in ...
http://www.azcentral.com/arizonarepublic/opinions/articles/0614mon1-14.html

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BUILDING codes coming to Jersey County in near future
Alton Telegraph - Alton,IL,USA
... Contractors in Jerseyville operate under the International Code Council
building codes, or ICC codes, which call for minimum standards for all aspects
of a ...
http://www.zwire.com/site/news.cfm?newsid=11941271&BRD=1719&PAG=461&dept_id=25271&rfi=6

----------------------------------------------------------------------

Happy Father's Day!

I'll see you in Oakland this week.
http://www.afaa.org/afaa/PDF/TI_IntFA_Oakland_Jun2004.pdf

Have fun!

Mike
mailto:mike@etnews.org

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ET NEWS JOURNAL 
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DUCT SMOKE DETECTION
--------------------

If your fiefdom is moving from NFPA 90A to International Mechanical Code, you'll
see a difference in duct smoke detection requirements. Generally, your building
code will point you in the right direction stating something like "...where
smoke detectors are used to control the spread of smoke, follow the requirements
of [insert your mechanical code] ..."

Here's the code language:

NFPA 90A
--------
6.4.2.1 Smoke detectors listed for use in air distribution systems shall be
located as follows:  
(1) Downstream of the air filters and ahead of any branch connections in air
supply systems having a capacity greater than 944 L/sec (2000 ft^3/min)
(2) At each story prior to the connection to a common return and prior to any
recirculation or fresh air inlet connection in air return systems having a
capacity greater than 7080 L/sec (15,000 ft^3/min) and serving more than one
story

6.4.2.2 Return system smoke detectors shall not be required where the entire
space served by the air distribution system is protected by a system of area
smoke detectors.

INTERNATIONAL MECHANICAL CODE
-----------------------------
606.2 Where required. Smoke detectors shall be installed where indicated in
Sections 606.2.1 through 606.2.3.

Exception: Smoke detectors shall not be required where air distribution systems
are incapable of spreading smoke beyond the enclosing walls, floors and ceilings
of the room or space in which the smoke is generated.

606.2.1 Return air systems. Smoke detectors shall be installed in return air
systems with a design capacity greater than 2,000 CFM (0.9 m^3/s), in the return
air duct or plenum upstream of any filters, exhaust air connections, outdoor air
connections, or decontamination equipment and appliances.

Exception: Smoke detectors are not required in the return air system where all
portions of the building served by the air distribution system are protected by
area smoke detectors connected to a fire alarm system in accordance with the
International Fire Code. The area smoke detection system shall comply with
Section 606.4.

606.2.2 Common supply and return air systems. Where multiple air-handling
systems share common supply or return air ducts or plenums with a combined
design capacity greater than 2,000 CFM (0.9m^3/s), the return air system shall
be provided with smoke detectors in accordance with Section 606.2.1.
Exception: Individual smoke detectors shall not be required for each fan-powered
terminal unit, provided that such units do not have an individual design
capacity greater than 2,000 CFM (0.9m^3/s) and will be shut down by activation
of one of the following:
  1. Smoke detectors required by Sections 606.2.1 and 606.2.3.
  2. An approved area smoke detector system located in the return air plenum
     serving such units.
  3. An area smoke detector system as prescribed in the exception to Section
      606.2.1.

606.2.3 Return air risers. Where return air risers serve two or more stories and
serve any portion of a return air system having a design capacity greater than
15,000 cfm (7.1 m^3/s), smoke detectors shall be installed at each story. Such
smoke detectors shall be located upstream of the connection between the return
air riser and any air ducts or plenums.

SUMMARY
-------

NFPA 90A requires smoke detection on the supply side of air handling systems
exceeding 2000 CFM *and* on individual branch connections prior to their
connection to the common return on systems exceeding 15000 CFM *and* serving
more than one story.

IMC requires smoke detection on the common return of air handling systems
exceeding 2000 CFM *and* on individual branch connections prior to their
connection to the common return on systems exceeding 15000 CFM *and* serving two
or more stories.

Both NPFA 90A and IMC require that these smoke detectors be connected to the
building fire alarm system if installed and both allow the use of area smoke
detection in lieu of in-duct smoke detection to stop fan motors.

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JOB OPPORTUNITIES 
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Place your "job opportunity" or "seeking employment" ad here. 
mailto:jobs@etnews.org

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FIRE ALARM CLASS SCHEDULE 
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------------------
June 22-24, 2004 Oakland, CA
------------------
Fire Alarm System Testing and Inspection Seminar
Intermediate Fire Alarm Seminar (NICET I/II) 
http://www.afaa.org/afaa/PDF/TI_IntFA_Oakland_Jun2004.pdf

------------------
July 6-8, 2004 Seattle, WA
------------------
Fire Alarm System Testing and Inspection Seminar
Intermediate Fire Alarm Seminar (NICET I/II) 
http://www.afaa.org/afaa/PDF/TI_IntFA_Seattle_Jul2004.pdf

------------------
July 13-15, 2004 Chicago, IL
------------------
Fire Alarm System Testing and Inspection Seminar
Advanced Fire Alarm Seminar (NICET III/IV) 
http://www.afaa.org/afaa/PDF/TI_AdvFA_Chicago_Jul2004.pdf

------------------
July 20-22, 2004 Salt Lake City, UT
------------------
Fire Alarm System Testing and Inspection Seminar
Intermediate Fire Alarm Seminar (NICET I/II) 
http://www.afaa.org/afaa/PDF/TI_IntFA_SaltLakeCity_Jul2004.pdf

------------------
August 17-19, 2004 Cincinnati, OH
------------------
Basic Fire Alarm Seminar
Fire Alarm System Testing & Inspections Seminar
Fire Alarm Plan Review Seminar
http://www.afaa.org/afaa/PDF/BasFA_TI_PR_Cincinnati_Aug2004.pdf

------------------
August 24-26, 2004 Indianapolis, IN
------------------
Fire Alarm Plan Review Seminar
Intermediate Fire Alarm Seminar (NICET I & II)
http://www.afaa.org/afaa/PDF/PR_UCR-IBC_Indy_Aug2004.pdf

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COMMENTS AND ACKNOWLEDGEMENTS 
======================================================================

ET News is written nearly every week and almost always sent on Sunday.

Doug Hockinson built the PHP/MySQL ET News website. http://phpvs.com

Purchase NICET Element Review Handbook online http://tinyurl.com/28ldd

Purchase NFPA, ICC, and more on line: http://www.etnews.org/index.php?s=461

Purchase new & used codes & standards on eBay http://tinyurl.com/36zzk

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Some information may be found within this email message that is
reprinted with permission from one or more of the following; NFPA 70
National Electrical Code(r), NFPA 72(r) National Fire Alarm Code(r),
NFPA 101(r) Life Safety Code(r), Copyright(c) NFPA, Quincy, MA 02269.
This reprinted material is not the complete and official position of
the NFPA on the referenced subject, which is represented only by the
standard in its entirety. 
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Some information may be found within this web site that is reprinted with permission from one or more of the following: NFPA 70 National Electrical Code®,NFPA 72® National Fire Alarm Code®, & NFPA 101® Life Safety Code®, Copyright© NFPA, Quincy, MA 02269.

This reprinted material is not the complete and official position of the NFPA on the referenced subject, which is represented only by the standard in its entirety.