2011 Annual Revision Cycle. Report on Proposals. Public Comment Deadline: September 3, 2010

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1 2011 Annual Revision Cycle Report on Proposals A compilation of NFPA Technical Committee Reports on Proposals for public review and comment Public Comment Deadline: September 3, 2010 NOTE: The proposed NFPA documents addressed in this Report on Proposals (ROP) and in a follow-up Report on Comments (ROC) will only be presented for action when proper Amending Motions have been submitted to the NFPA by the deadline of April 8, The June 2011 NFPA Conference & Expo will be held June 12 16, 2011 at the Boston Convention & Exhibition Center, Boston, MA. During the meeting, the Association Technical Meeting (Tech Session) will be held June 15 16, Documents that receive no motions will not be presented at the meeting and instead will be forwarded directly to the Standards Council for action on issuance. For more information on the rules and for up-to-date information on schedules and deadlines for processing NFPA documents, check the NFPA website (www. nfpa.org) or contact NFPA Standards Administration. National Fire Protection Association 1 BATTERYMARCH PARK, QUINCY, MA ISSN Copyright 2010 All Rights Reserved NFPA and National Fire Protection Association are registered trademarks of the National Fire Protection Association, Quincy, MA

2 Information on NFPA Codes and Standards Development I. Applicable Regulations. The primary rules governing the processing of NFPA documents (codes, standards, recommended practices, and guides) are the NFPA Regulations Governing Committee Projects (Regs). Other applicable rules include NFPA Bylaws, NFPA Technical Meeting Convention Rules, NFPA Guide for the Conduct of Participants in the NFPA Standards Development Process, and the NFPA Regulations Governing Petitions to the Board of Directors from Decisions of the Standards Council. Most of these rules and regulations are contained in the NFPA Directory. For copies of the Directory, contact Codes and Standards Administration at NFPA Headquarters; all these documents are also available on the NFPA website at The following is general information on the NFPA process. All participants, however, should refer to the actual rules and regulations for a full understanding of this process and for the criteria that govern participation. II. Technical Committee Report. The Technical Committee Report is defined as the Report of the Technical Committee and Technical Correlating Committee (if any) on a document. A Technical Committee Report consists of the Report on Proposals (ROP), as modified by the Report on Comments (ROC), published by the Association. III. Step 1: Report on Proposals (ROP). The ROP is defined as a report to the Association on the actions taken by Technical Committees and/or Technical Correlating Committees, accompanied by a ballot statement and one or more proposals on text for a new document or to amend an existing document. Any objection to an action in the ROP must be raised through the filing of an appropriate Comment for consideration in the ROC or the objection will be considered resolved. IV. Step 2: Report on Comments (ROC). The ROC is defined as a report to the Association on the actions taken by Technical Committees and/or Technical Correlating Committees accompanied by a ballot statement and one or more comments resulting from public review of the Report on Proposals (ROP). The ROP and the ROC together constitute the Technical Committee Report. Any outstanding objection following the ROC must be raised through an appropriate Amending Motion at the Association Technical Meeting or the objection will be considered resolved. V. Step 3a: Action at Association Technical Meeting. Following the publication of the ROC, there is a period during which those wishing to make proper Amending Motions on the Technical Committee Reports must signal their intention by submitting a Notice of Intent to Make a Motion. Documents that receive notice of proper Amending Motions (Certified Amending Motions) will be presented for action at the annual June Association Technical Meeting. At the meeting, the NFPA membership can consider and act on these Certified Amending Motions as well as Follow-up Amending Motions, that is, motions that become necessary as a result of a previous successful Amending Motion. (See through of Regs for a summary of the available Amending Motions and who may make them.) Any outstanding objection following action at an Association Technical Meeting (and any further Technical Committee consideration following successful Amending Motions, see Regs at 4.7) must be raised through an appeal to the Standards Council or it will be considered to be resolved. VI. Step 3b: Documents Forwarded Directly to the Council. Where no Notice of Intent to Make a Motion (NITMAM) is received and certified in accordance with the Technical Meeting Convention Rules, the document is forwarded directly to the Standards Council for action on issuance. Objections are deemed to be resolved for these documents. VII. Step 4a: Council Appeals. Anyone can appeal to the Standards Council concerning procedural or substantive matters related to the development, content, or issuance of any document of the Association or on matters within the purview of the authority of the Council, as established by the Bylaws and as determined by the Board of Directors. Such appeals must be in written form and filed with the Secretary of the Standards Council (see 1.6 of Regs). Time constraints for filing an appeal must be in accordance with of the Regs. Objections are deemed to be resolved if not pursued at this level. VIII. Step 4b: Document Issuance. The Standards Council is the issuer of all documents (see Article 8 of Bylaws). The Council acts on the issuance of a document presented for action at an Association Technical Meeting within 75 days from the date of the recommendation from the Association Technical Meeting, unless this period is extended by the Council (see 4.8 of Regs). For documents forwarded directly to the Standards Council, the Council acts on the issuance of the document at its next scheduled meeting, or at such other meeting as the Council may determine (see and 4.8 of Regs). IX. Petitions to the Board of Directors. The Standards Council has been delegated the responsibility for the administration of the codes and standards development process and the issuance of documents. However, where extraordinary circumstances requiring the intervention of the Board of Directors exist, the Board of Directors may take any action necessary to fulfill its obligations to preserve the integrity of the codes and standards development process and to protect the interests of the Association. The rules for petitioning the Board of Directors can be found in the Regulations Governing Petitions to the Board of Directors from Decisions of the Standards Council and in 1.7 of the Regs. X. For More Information. The program for the Association Technical Meeting (as well as the NFPA website as information becomes available) should be consulted for the date on which each report scheduled for consideration at the meeting will be presented. For copies of the ROP and ROC as well as more information on NFPA rules and for up-to-date information on schedules and deadlines for processing NFPA documents, check the NFPA website ( or contact NFPA Codes & Standards Administration at (617)

3 2011 Annual Revision Cycle ROP Contents by NFPA Numerical Designation Note: Documents appear in numerical order. NFPA No. Type Action Title Page No. 1 P Fire Code N Recommended Practice on Commissioning and Integrated Testing of Fire Protection and Life Safety Systems P Standard for Water Spray Fixed Systems for Fire Protection P Flammable and Combustible Liquids Code A P Code for Motor Fuel Dispensing Facilities and Repair Garages... 30A-1 54 P National Fuel Gas Code P Utility LP-Gas Plant Code E P Standard for Electrical Safety in the Workplace... 70E-1 80A P Recommended Practice for Protection of Buildings from Exterior Fire Exposures... 80A-1 90A P Standard for the Installation of Air-Conditioning and Ventilating Systems... 90A-1 90B P Standard for the Installation of Warm Air Heating and Air-Conditioning Systems... 90B-1 92 N Standard for Smoke Management Systems A W Standard for Smoke-Control Systems Utilizing Barriers and Pressure Differences... 92A-1 92B W Standard for Smoke Management Systems in Malls, Atria, and Large Spaces... 92B-1 99 P Standard for Health Care Facilities (will be redesignated as NFPA 99, Health Care Facilities Code) 101 P Life Safety Code P Standard on Types on Building Construction P Standard for High Challenge Fire Walls, Fire Walls, and Fire Barrier Walls P Standard for the Protection of Records P Standard for the Protection of Semiconductor Fabrication Facilities P Standard for Aircraft Fuel Servicing P Standard for Aircraft Rescue and Fire-Fighting Vehicles C Standard for Combustible Metals P Standard for the Prevention of Fires and Explosions in Wood Processing and Woodworking Facilities P Standard for Fire-Retardant Treated Wood and Fire-Retardant Coatings for Building Materials P Standard System for the Identification of the Hazards of Materials for Emergency Response P Standard for the Installation of Carbon Monoxide (CO) Detection and Warning Equipment N Standard for Competency of Third-Party Field Evaluation Bodies N Recommended Practice and Procedures for Unlabeled Electrical Equipment Evaluation P Standard for Fire Protection in Wastewater Treatment and Collection Facilities i

4 1081 P Standard for Industrial Fire Brigade Member Professional Qualifications P Code for the Manufacture of Model Rocket and High Power Rocket Motors P Standard for Fire Protection Infrastructure for Land Development in Suburban and Rural Areas (will be redesignated as NFPA 1141, Standard for Fire Protection Infrastructure for Land Development in Wildland, Rural, and Suburban Areas) 1142 P Standard on Water Supplies for Suburban and Rural Fire Fighting P Standard on Flame-Resistant Garments for Protection of Industrial Personnel Against Flash Fire P Standard on Selection, Care, Use, and Maintenance of Flame-Resistant Garments for Protection of Industrial Personnel Against Flash Fire (will be redesignated as NFPA 2113, Standard on Selection, Care, Use, and Maintenance of Flame-Resistant Garments for Protection of Industrial Personnel) 5000 P Building Construction and Safety Code TYPES OF ACTION P Partial Revision C Complete Revision N New Document R Reconfirmation W Withdrawal ii

5 2011 Annual Revision Cycle ROP Committees Reporting Type Action Page No. Air Conditioning 90A Standard for the Installation of Air-Conditioning and Ventilating Systems P 90A-1 90B Standard for the Installation of Warm Air Heating and Air-Conditioning Systems P 90B-1 Aircraft Fuel Servicing 407 Standard for Aircraft Fuel Servicing P Aircraft Rescue and Fire Fighting 414 Standard for Aircraft Rescue and Fire-Fighting Vehicles P Automotive and Marine Service Stations 30A Code for Motor Fuel Dispensing Facilities and Repair Garages P 30A-1 Building Code 5000 Building Construction and Safety Code P Building Construction 220 Standard on Types of Building Construction P Standard for High Challenge Fire Walls, Fire Walls, and Fire Barrier Walls P Structures, Construction, and Materials 703 Standard for Fire-Retardant Treated Wood and Fire-Retardant Coatings for Building Materials P Classification and Properties of Hazardous Chemical Data 704 Standard System for the Identification of the Hazards of Materials for Emergency Response P Cleanrooms 318 Standard for the Protection of Semiconductor Fabrication Facilities P Combustible Metals and Metal Dusts 484 Standard for Combustible Metals C Commissioning Fire Protection Systems 3 Recommended Practice on Commissioning and Integrated Testing of Fire Protection and Life Safety Systems N 3-1 Electrical Equipment Evaluation 790 Standard for Competency of Third-Party Field Evaluation Bodies N Recommended Practice and Procedures for Unlabeled Electrical Equipment Evaluation N Electrical Safety in the Workplace 70E Standard for Electrical Safety in the Workplace P 70E-1 Exposure Fire Protection 80A Recommended Practice for Protection of Buildings from Exterior Fire Exposures P 80A-1 Fire Code 1 Fire Code P 1-1 Flammable and Combustible Liquids 30 Flammable and Combustible Liquids Code P 30-1 Flash Fire Protective Garments 2112 Standard on Flame-Resistant Garments for Protection of Industrial Personnel Against Flash Fire P Standard on Selection, Care, Use, and Maintenance of Flame-Resistant Garments for Protection of Industrial Personnel Against Flash Fire P Forest and Rural Fire Protection 1141 Standard for Fire Protection Infrastructure for Land Development in Suburban and Rural Areas P Standard on Water Supplies for Suburban and Rural Fire Fighting P Health Care Facilities 99 Standard for Health Care Facilities P 99-1 iii

6 LP-Gases at Utility Gas Plants 59 Utility LP-Gas Plant Code P 59-1 National Fuel Gas Code 54 National Fuel Gas Code P 54-1 Professional Qualifications Industrial Fire Brigades Professional Qualifications 1081 Standard for Industrial Fire Brigade Member Professional Qualifications P Pyrotechnics 1125 Code for the Manufacture of Model Rocket and High Power Rocket Motors P Record Protection 232 Standard for the Protection of Records P Safety to Life 101 Life Safety Code P Signaling Systems for the Protection of Life and Property Carbon Monoxide Detection 720 Standard for the Installation of Carbon Monoxide (CO) Detection and Warning Equipment P Smoke Management Systems 92 Standard for Smoke Management Systems N A Standard for Smoke-Control Systems Utilizing Barriers and Pressure Differences W 92A-1 92B Standard for Smoke Management Systems in Malls, Atria, and Large Spaces W 92B-1 Wastewater Treatment Plants 820 Standard for Fire Protection in Wastewater Treatment and Collection Facilities P Water Spray Fixed Systems 15 Standard for Water Spray Fixed Systems for Fire Protection P 15-1 Wood and Cellulosic Materials Processing 664 Standard for the Prevention of Fires and Explosions in Wood Processing and Woodworking Facilities P 77-1 iv

7 COMMITTEE MEMBER CLASSIFICATIONS 1,2,3,4 The following classifications apply to Committee members and represent their principal interest in the activity of the Committee. 1. M Manufacturer: A representative of a maker or marketer of a product, assembly, or system, or portion thereof, that is affected by the standard. 2. U User: A representative of an entity that is subject to the provisions of the standard or that voluntarily uses the standard. 3. IM Installer/Maintainer: A representative of an entity that is in the business of installing or maintaining a product, assembly, or system affected by the standard. 4. L Labor: A labor representative or employee concerned with safety in the workplace. 5. RT Applied Research/Testing Laboratory: A representative of an independent testing laboratory or independent applied research organization that promulgates and/or enforces standards. 6. E Enforcing Authority: A representative of an agency or an organization that promulgates and/or enforces standards. 7. I Insurance: A representative of an insurance company, broker, agent, bureau, or inspection agency. 8. C Consumer: A person who is or represents the ultimate purchaser of a product, system, or service affected by the standard, but who is not included in (2). 9. SE Special Expert: A person not representing (1) through (8) and who has special expertise in the scope of the standard or portion thereof. NOTE 1: Standard connotes code, standard, recommended practice, or guide. NOTE 2: A representative includes an employee. NOTE 3: While these classifications will be used by the Standards Council to achieve a balance for Technical Committees, the Standards Council may determine that new classifications of member or unique interests need representation in order to foster the best possible Committee deliberations on any project. In this connection, the Standards Council may make such appointments as it deems appropriate in the public interest, such as the classification of Utilities in the National Electrical Code Committee. NOTE 4: Representatives of subsidiaries of any group are generally considered to have the same classification as the parent organization. v

8 FORM FOR COMMENT ON NFPA REPORT ON PROPOSALS 2011 ANNUAL REVISION CYCLE FINAL DATE FOR RECEIPT OF COMMENTS: 5:00 pm EDST, September 3, 2010 For further information on the standards-making process, please contact the Codes and Standards Administration at or visit For technical assistance, please call NFPA at FOR OFFICE USE ONLY Log #: Date Rec d: Please indicate in which format you wish to receive your ROP/ROC electronic paper download (Note: If choosing the download option, you must view the ROP/ROC from our website; no copy will be sent to you.) Date 8/1/200X Name John B. Smith Tel. No Company Street Address 9 Seattle St. City Tacoma State WA Zip ***If you wish to receive a hard copy, a street address MUST be provided. Deliveries cannot be made to PO boxes. Please indicate organization represented (if any) Fire Marshals Assn. of North America 1. (a) NFPA Document Title National Fire Alarm Code NFPA No. & Year NFPA 72, 200X ed. (b) Section/Paragraph Comment on Proposal No. (from ROP): Comment Recommends (check one): new text revised text deleted text 4. Comment (include proposed new or revised wording, or identification of wording to be deleted): [Note: Proposed text should be in legislative format; i.e., use underscore to denote wording to be inserted (inserted wording) and strike-through to denote wording to be deleted (deleted wording).] Delete exception. 5. Statement of Problem and Substantiation for Comment: (Note: State the problem that would be resolved by your recommendation; give the specific reason for your Comment, including copies of tests, research papers, fire experience, etc. If more than 200 words, it may be abstracted for publication.) A properly installed and maintained system should be free of ground faults. The occurrence of one or more ground faults should be required to cause a trouble signal because it indicates a condition that could contribute to future malfunction of the system. Ground fault protection has been widely available on these systems for years and its cost is negligible. Requiring it on all systems will promote better installations, maintenance and reliability. 6. Copyright Assignment (a) I am the author of the text or other material (such as illustrations, graphs) proposed in the Comment. (b) Some or all of the text or other material proposed in this Comment was not authored by me. Its source is as follows: (please identify which material and provide complete information on its source) I hereby grant and assign to the NFPA all and full rights in copyright in this Comment and understand that I acquire no rights in any publication of NFPA in which this Comment in this or another similar or analogous form is used. Except to the extent that I do not have authority to make an assignment in materials that I have identified in (b) above, I hereby warrant that I am the author of this Comment and that I have full power and authority to enter into this assignment. Signature (Required) PLEASE USE SEPARATE FORM FOR EACH COMMENT Mail to: Secretary, Standards Council National Fire Protection Association 1 Batterymarch Park Quincy, MA OR Fax to: (617) OR to: proposals_comments@nfpa.org 5/14/2010

9 FORM FOR COMMENT ON NFPA REPORT ON PROPOSALS 2011 ANNUAL REVISION CYCLE FINAL DATE FOR RECEIPT OF COMMENTS: 5:00 pm EDST, September 3, 2010 For further information on the standards-making process, please contact the Codes and Standards Administration at or visit For technical assistance, please call NFPA at FOR OFFICE USE ONLY Log #: Date Rec d: Please indicate in which format you wish to receive your ROP/ROC electronic paper download (Note: If choosing the download option, you must view the ROP/ROC from our website; no copy will be sent to you.) Date Name Tel. No. Company Street Address City State Zip ***If you wish to receive a hard copy, a street address MUST be provided. Deliveries cannot be made to PO boxes. Please indicate organization represented (if any) 1. (a) NFPA Document Title NFPA No. & Year (b) Section/Paragraph 2. Comment on Proposal No. (from ROP): 3. Comment Recommends (check one): new text revised text deleted text 4. Comment (include proposed new or revised wording, or identification of wording to be deleted): [Note: Proposed text should be in legislative format; i.e., use underscore to denote wording to be inserted (inserted wording) and strike-through to denote wording to be deleted (deleted wording).] 5. Statement of Problem and Substantiation for Comment: (Note: State the problem that would be resolved by your recommendation; give the specific reason for your Comment, including copies of tests, research papers, fire experience, etc. If more than 200 words, it may be abstracted for publication.) 6. Copyright Assignment (a) I am the author of the text or other material (such as illustrations, graphs) proposed in the Comment. (b) Some or all of the text or other material proposed in this Comment was not authored by me. Its source is as follows: (please identify which material and provide complete information on its source) I hereby grant and assign to the NFPA all and full rights in copyright in this Comment and understand that I acquire no rights in any publication of NFPA in which this Comment in this or another similar or analogous form is used. Except to the extent that I do not have authority to make an assignment in materials that I have identified in (b) above, I hereby warrant that I am the author of this Comment and that I have full power and authority to enter into this assignment. Signature (Required) PLEASE USE SEPARATE FORM FOR EACH COMMENT Mail to: Secretary, Standards Council National Fire Protection Association 1 Batterymarch Park Quincy, MA OR Fax to: (617) OR to: proposals_comments@nfpa.org 5/14/2010

10 Sequence of Events Leading to Issuance of an NFPA Committee Document Step 1 Call for Proposals Proposed new document or new edition of an existing document is entered into one of two yearly revision cycles, and a Call for Proposals is published. Step 2 Report on Proposals (ROP) Committee meets to act on Proposals, to develop its own Proposals, and to prepare its Report. Committee votes by written ballot on Proposals. If two-thirds approve, Report goes forward. Lacking twothirds approval, Report returns to Committee. Step 3 Report on Proposals (ROP) is published for public review and comment. Report on Comments (ROC) Committee meets to act on Public Comments to develop its own Comments, and to prepare its report. Committee votes by written ballot on Comments. If two-thirds approve, Report goes forward. Lacking twothirds approval, Report returns to Committee. Step 4 Report on Comments (ROC) is published for public review. Association Technical Meeting Notices of intent to make a motion are filed, are reviewed, and valid motions are certified for presentation at the Association Technical Meeting. ( Consent Documents that have no certified motions bypass the Association Technical Meeting and proceed to the Standards Council for issuance.) NFPA membership meets each June at the Association Technical Meeting and acts on Technical Committee Reports (ROP and ROC) for documents with certified amending motions. Step 5 Committee(s) vote on any amendments to Report approved at NFPA Annual Membership Meeting. Standards Council Issuance Notification of intent to file an appeal to the Standards Council on Association action must be filed within 20 days of the NFPA Annual Membership Meeting. Standards Council decides, based on all evidence, whether or not to issue document or to take other action, including hearing any appeals.

11 The Association Technical Meeting The process of public input and review does not end with the publication of the ROP and ROC. Following the completion of the Proposal and Comment periods, there is yet a further opportunity for debate and discussion through the Association Technical Meeting that takes place at the NFPA Annual Meeting. The Association Technical Meeting provides an opportunity for the final Technical Committee Report (i.e., the ROP and ROC) on each proposed new or revised code or standard to be presented to the NFPA membership for the debate and consideration of motions to amend the Report. The specific rules for the types of motions that can be made and who can make them are set forth in NFPA s rules, which should always be consulted by those wishing to bring an issue before the membership at an Association Technical Meeting. The following presents some of the main features of how a Report is handled. The Filing of a Notice of Intent to Make a Motion. Before making an allowable motion at an Association Technical Meeting, the intended maker of the motion must file, in advance of the session, and within the published deadline, a Notice of Intent to Make a Motion. A Motions Committee appointed by the Standards Council then reviews all notices and certifies all amending motions that are proper. The Motions Committee can also, in consultation with the makers of the motions, clarify the intent of the motions and, in certain circumstances, combine motions that are dependent on each other together so that they can be made in one single motion. A Motions Committee report is then made available in advance of the meeting listing all certified motions. Only these Certified Amending Motions, together with certain allowable Follow-Up Motions (that is, motions that have become necessary as a result of previous successful amending motions) will be allowed at the Association Technical Meeting. Consent Documents. Often there are codes and standards up for consideration by the membership that will be noncontroversial and no proper Notices of Intent to Make a Motion will be filed. These Consent Documents will bypass the Association Technical Meeting and head straight to the Standards Council for issuance. The remaining documents are then forwarded to the Association Technical Meeting for consideration of the NFPA membership. What Amending Motions Are Allowed. The Technical Committee Reports contain many Proposals and Comments that the Technical Committee has rejected or revised in whole or in part. Actions of the Technical Committee published in the ROP may also eventually be rejected or revised by the Technical Committee during the development of its ROC. The motions allowed by NFPA rules provide the opportunity to propose amendments to the text of a proposed code or standard based on these published Proposals, Comments, and Committee actions. Thus, the list of allowable motions include motions to accept Proposals and Comments in whole or in part as submitted or as modified by a Technical Committee action. Motions are also available to reject an accepted Comment in whole or part. In addition, Motions can be made to return an entire Technical Committee Report or a portion of the Report to the Technical Committee for further study. The NFPA Annual Meeting, also known as the NFPA Conference & Expo, takes place in June of each year. A second Fall membership meeting was discontinued in 2004, so the NFPA Technical Committee Report Session now runs once each year at the Annual Meeting in June. Who Can Make Amending Motions. NFPA rules also define those authorized to make amending motions. In many cases, the maker of the motion is limited by NFPA rules to the original submitter of the Proposal or Comment or his or her duly authorized representative. In other cases, such as a Motion to Reject an accepted Comment, or to Return a Technical Committee Report or a portion of a Technical Committee Report for Further Study, anyone can make these motions. For a complete explanation, the NFPA Regs should be consulted.

12 Action on Motions at the Association Technical Meeting. In order to actually make a Certified Amending Motion at the Association Technical Meeting, the maker of the motion must sign in at least an hour before the session begins. In this way a final list of motions can be set in advance of the session. At the session, each proposed document up for consideration is presented by a motion to adopt the Technical Committee Report on the document. Following each such motion, the presiding officer in charge of the session opens the floor to motions on the document from the final list of Certified Amending Motions followed by any permissible Follow-Up Motions. Debate and voting on each motion proceeds in accordance with NFPA rules. NFPA membership is not required in order to make or speak to a motion, but voting is limited to NFPA members who have joined at least 180 days prior to the Association Technical Meeting and have registered for the meeting. At the close of debate on each motion, voting takes place, and the motion requires a majority vote to carry. In order to amend a Technical Committee Report, successful amending motions must be confirmed by the responsible Technical Committee, which conducts a written ballot on all successful amending motions following the meeting and prior to the document being forwarded to the Standards Council for issuance. Standards Council Issuance One of the primary responsibilities of the NFPA Standards Council, as the overseer of the NFPA codes and standards development process, is to act as the official issuer of all NFPA codes and standards. When it convenes to issue NFPA documents, it also hears any appeals related to the document. Appeals are an important part of assuring that all NFPA rules have been followed and that due process and fairness have been upheld throughout the codes and standards development process. The Council considers appeals both in writing and through the conduct of hearings at which all interested parties can participate. It decides appeals based on the entire record of the process as well as all submissions on the appeal. After deciding all appeals related to a document before it, the Council, if appropriate, proceeds to issue the document as an official NFPA code or standard. Subject only to limited review by the NFPA Board of Directors, the decision of the Standards Council is final, and the new NFPA code or standard becomes effective twenty days after Standards Council issuance.

13 Report of the Committee on Air Conditioning David P. Demers, Chair Demers Associates Inc., MA [SE] Charles E. Altizer, Virginia State Fire Marshal s Office, VA [E] Rep. International Fire Marshals Association Jesse J. Beitel, Hughes Associates, Inc., MD [SE] James S. Buckley, Jacobs, TX [IM] Rep. American Society for Heating, Refrigeration & Air Conditioning Engineers Inc. Merton W. Bunker, Jr., US Department of State, VA [U] Laurence W. Caraway, Jr., Kitchen Klean Inc., NH [IM] Rep. National Air Duct Cleaners Association Michael Earl Dillon, Dillon Consulting Engineers, Inc., CA [SE] James T. Dollard, Jr., IBEW Local Union 98, PA [L] Rep. International Brotherhood of Electrical Workers Douglas S. Erickson, American Society for Healthcare Engineering, VI [U] Thomas P. Hammerberg, Automatic Fire Alarm Association, Inc., GA [M] J. C. Harrington, FM Global, MA [I] Marcelo M. Hirschler, GBH International, CA [M] Rep. American Fire /Plenum Cable Assn. Charles C. Holt, National Energy Management Institute, PA [L] Rep. Sheet Metal Workers International Association Michael J. Jontry, Illinois Department of Public Health, IL [E] Stanley D. Kahn, Tri-City Electric Company, Inc., CA [IM] Rep. National Electrical Contractors Association Marvin A. Koerber, ATCO Rubber Products Inc., SC [M] Rep. Air Diffusion Council William E. Koffel, Koffel Associates, Inc., MD [M] Rep. Society of the Plastics Industry, Inc. Richard E. Loyd, R & N Associates, AZ [M] Rep. American Iron and Steel Institute Timothy J. Orris, AMCA International, Inc., IL [M] Rep. Air Movement & Control Association Richard P. Owen, Oakdale, MN [E] Rep. National Electrical Code Correlating Committee Thomas E. Ponder, CertainTeed Corporation, PA [M] Rep. North American Insulation Manufacturers Association Suresh K. Shah, US Department of Health & Human Services, TX [U] Dwayne E. Sloan, Underwriters Laboratories Inc., NC [RT] George A. Straniero, Tyco/AFC Cable Systems, Inc., NJ [M] () Rep. National Electrical Manufacturers Association Randolph W. Tucker, The RJA Group, Inc., TX [SE] Robert A. Wessel, Gypsum Association, MD [M] Alternates Diane B. Copeland, Dillon Consulting Engineers, Inc., CA [SE] (Alt. to Michael Earl Dillon) Charles C. Cottrell, North American Insulation Manufacturers Assn., VA [M] (Alt. to Thomas E. Ponder) Kimball E. Ferguson, Inova Health System, VA [U] (Alt. to Douglas S. Erickson) David L. Hall, Air Products and Controls Inc., MI [M] (Alt. to Thomas P. Hammerberg) Eli P. Howard, III, Sheet Metal & Air Conditioning Contractors Natl. Assn., VA [IM] (Voting Alt. to SMACNA Rep.) Ralph A. Koerber, ATCO Rubber Products, Inc., TX [M] (Alt. to Marvin A. Koerber) Vijay Kotian, Albermarle Corporation, LA [M] (Alt. to Marcelo M. Hirschler) Randall K. Laymon, Underwriters Laboratories Inc., IL [RT] (Alt. to Dwayne E. Sloan) Harold C. Ohde, IBEW-NECA Technical Institute, IL [L] (Alt. to James T. Dollard, Jr.) Brian J. Papagni, The RJA Group, Inc., GA [SE] (Alt. to Randolph W. Tucker) Isaac I. Papier, Honeywell, Inc., IL [M] (Alt. to George A. Straniero) Michael J. Rzeznik, Aon/Schirmer Engineering Corporation, NY [I] (Voting Alt. to Aon/Schirmer Rep.) Robert Van Becelaere, Ruskin Manufacturing, MO [M] (Alt. to Timothy J. Orris) Robert J. Wills, American Iron and Steel Institute, AL [M] (Alt. to Richard E. Loyd) Staff Liaison: Allan Fraser Committee Scope: This Committee shall have primary responsibility for documents on the construction, installation, operation, and maintenance of systems for air conditioning, warm air heating, and ventilating including filters, ducts, and related equipment to protect life and property from fire, smoke, and gases resulting from fire or from conditions having manifestations similar to fire. This list represents the membership at the time the Committee was balloted on the text of this edition. Since that time, changes in the membership may have occurred. A key to classifications is found at the front of this book. The Technical Committee on Air Conditioning is presenting two Reports for adoption, as follows: Report I: The Technical Committee proposes for adoption amendments to, Standard for the Installation of Air-Conditioning and Ventilating Systems, 2009 edition is published in Volume 7 of the 2010 National Fire Codes and in separate pamphlet form. The report on has been submitted to letter ballot of the Technical Committee on Air Conditioning, which consists of 28 voting members. The results of the balloting, after circulation of any negative votes, can be found in the report. Report II: The Technical Committee proposes for adoption, amendments to NFPA 90B, Standard for the Installation of Warm Air Heating and Air- Conditioning Systems, 2009 edition. NFPA 90B-2009 is published in Volume 7 of the 2010 National Fire Codes and in separate pamphlet form. The report on NFPA 90B has been submitted to letter ballot of the Technical Committee on Air Conditioning, which consists of 28 voting members. The results of the balloting, after circulation of any negative votes, can be found in the report. 90A-1

14 ducts, plenums, panels, and duct silencers used in duct systems, unless otherwise 90A-1 Log #30 Final Action: Reject provided for in or , shall have, in the form in which they (Entire Document) are used, a maximum flame spread index of 25 without evidence of continued Replace air duct with duct throughout the document, as follows: 1.2 Purpose. This standard shall prescribe minimum requirements for safety to life and property from fire. These requirements shall be intended to accomplish the following: (1) Restrict the spread of smoke through air duct systems within a building or into a building from the outside (2) Restrict the spread of fire through air duct systems from the area of fire origin, whether located within the building or outside (3) Maintain the fire-resistive integrity of building components and elements such as floors, partitions, roofs, walls, and floor- or roof-ceiling assemblies affected by the installation of air duct systems progressive combustion and a maximum smoke developed index of 50 when tested in accordance with ASTM E 84, Standard Test Method for Surface Burning Characteristics of Building Materials, or with ANSI/UL 723, Standard Test Method for Surface Burning Characteristics of Building Materials. Pipe and duct insulation and coverings, duct linings and their adhesives, and tapes shall use the specimen preparation and mounting procedures of ASTM E 2231, Standard Practice for Specimen Preparation and Mounting of Pipe and Duct Insulation Materials to Assess Surface Burning Characteristics The flame spread index and smoke developed index requirements of shall not apply to air duct weatherproof coverings where they are located entirely outside of a building, do not penetrate a wall or roof, and do not create an exposure hazard Closure systems for use with rigid and flexible air ducts tested in accordance with ANSI/UL 181, Standard for Safety Factory-Made Air Ducts and Air Connectors, shall have been tested, listed, and used in accordance with the conditions of their listings, in accordance with one of the following: (4) Minimize the ignition sources and combustibility of the elements of the (1) ANSI/UL 181A, Standard for Safety Closure Systems for Use with air duct systems Rigid Air Ducts (5) Permit the air duct systems in a building to be used for the additional (2) ANSI/UL 181B, Standard for Safety Closure Systems for Use with purpose of emergency smoke control 3.3.3* Air Connector. A conduit for transferring air between an air duct or plenum and an air terminal unit or an air inlet or air outlet Air Distribution System. A continuous passageway for the transmission of air that, in addition to air ducts, can include air connectors, air duct fittings, dampers, plenums, fans, and accessory air-handling equipment but that does not include conditioned spaces Air Duct. A conduit or passageway for conveying air to or from heating, cooling, air conditioning, or ventilating equipment, but not including the plenum Air Duct Covering. A material such as an adhesive, insulation, banding, a coating(s), film, or a jacket used to cover the outside surface of an air duct, fan casing, or duct plenum Air Duct Lining. A material such as an adhesive, insulation, a coating(s), or film used to line the inside surface of an air duct, fan casing, or duct plenum * Plenum. A compartment or chamber to which one or more air ducts are connected and that forms part of the air distribution system Unlisted solar energy air distribution system components shall be accompanied by supportive information demonstrating that the components have flame spread and smoke developed indexes that are not in excess of those of the air duct system permitted by this standard Mechanical refrigeration used with air duct systems shall be installed in accordance with recognized safety practices Oil-burning heating furnaces combined with cooling units in the same air duct system shall be installed in accordance with NFPA 31, Standard for the Installation of Oil-Burning Equipment Gas-burning heating furnaces combined with cooling units in the same air duct system shall be installed in accordance with NFPA 54, National Fuel Gas Code Where electrical resistance or fuel-burning heaters are installed in air ducts, the air duct coverings and their installation shall comply with the provisions of Air Ducts Air Ducts shall be constructed of iron, steel, aluminum, copper, concrete, masonry, or clay tile, except as otherwise permitted in or Class 0 or Class 1 rigid or flexible air ducts tested in accordance with ANSI/UL 181, Standard for Safety Factory-Made Air Ducts and Air Connectors, and installed in conformance with the conditions of listing shall be permitted to be used for ducts when air temperature in the ducts does not exceed 121 C (250 F) or when used as vertical ducts serving not more than two adjacent stories in height Gypsum Board Air Ducts The air temperature limits of shall not apply when gypsum board material is used for emergency smoke exhaust air ducts All air duct materials shall be suitable for continuous exposure to the temperature and humidity conditions of the environmental air in the air duct Air ducts Ducts shall be considered to be in compliance with this requirement where constructed and installed in accordance with the ASHRAE Handbook HVAC Systems and Equipment, and with one of the following as applicable: (1) NAIMA Fibrous Glass Duct Construction Standard (2) SMACNA Fibrous Glass Duct Construction Standard (3) SMACNA HVAC Duct Construction Standards Metal and Flexible (4) SMACNA HVAC Air Duct Leakage Test Manual Where no standard exists for the construction of air ducts, the ducts shall be constructed to withstand both the maximum positive and negative pressures of the system at fan shutoff Air connectors are limited-use, flexible air ducts that shall not be required to conform to the provisions for air ducts where they meet the requirements of through * Pipe and duct insulation and coverings, duct linings, vapor retarder Flexible Air Ducts and Air Connectors Coverings and linings for air ducts, pipes, plenums, and panels, including all pipe and duct insulation materials, shall not flame, glow, smolder, or smoke when tested in accordance with ASTM C 411, Standard Test Method for Hot-Surface Performance of High-Temperature Thermal Insulation, at the temperature to which they are exposed in service. In no case shall the test temperature be below 121 C (250 F) Air duct Duct coverings shall not extend through walls or floors that are required to be fire stopped or required to have a fire resistance rating, unless such coverings meet the requirements of NFPA 80, Standard for Fire Doors and Other Opening Protectives * Air duct Duct linings shall be interrupted at fire dampers to prevent interference with the operation of devices Air duct Duct coverings shall not be installed so as to conceal or prevent the use of any service opening * Wiring shall not be installed in air ducts, except as permitted in through Wiring shall be permitted to be installed in air ducts, only if the wiring is directly associated with the air distribution system and does not exceed 1.22 m (4 ft) Air Duct Access and Inspection A service opening shall be provided in air ducts adjacent to each fire damper, smoke damper, and any smoke detectors that need access for installation, cleaning, maintenance, inspection, and testing Horizontal air ducts and plenums shall be provided with service openings to facilitate the removal of accumulations of dust and combustible materials Service openings shall be located at approximately 6.1 m (20 ft) intervals along the air duct and at the base of each vertical riser, unless otherwise permitted in through Inspection windows shall be permitted in air ducts, provided they are glazed with wired glass Openings in walls or ceilings shall be provided so that service openings in air ducts are accessible for maintenance and inspection needs Where a service opening is necessary in an air duct located above the ceiling of a floor- or roof-ceiling assembly that has been tested and assigned a fire resistance rating in accordance with NFPA 251, Standard Methods of Tests of Fire Resistance of Building Construction and Materials, access shall be provided in the ceiling Air Duct Integrity Air ducts Ducts shall be located where they are not subject to damage or rupture, or they shall be protected to maintain their integrity Where an air duct is located outdoors, the air duct, together with its covering or lining, shall be protected from harmful elements Where electrical, fossil fuel, or solar energy collection heat sources are installed in air ducts, the installation shall avoid the creation of a fire hazard For air ducts rated as Class 1 in accordance with ANSI/UL 181, Standard for Safety Factory-Made Air Ducts and Air Connectors, air duct coverings and linings shall be interrupted at the immediate area of operation of such heat sources in in order to meet the clearances specified as a condition of the equipment listing, unless otherwise permitted in or Air ducts Ducts complying with and air connectors complying with shall be permitted Fabricated plenum and apparatus casing shall be constructed of materials and by methods specified in and in accordance with the following: (1) The casing and plenum construction standards in SMACNA HVAC Duct Construction Standards Metal and Flexible (2) ASHRAE Handbook HVAC Systems and Equipment (3) Subsection for all air duct coverings, duct lining, acoustical liner/ cells, and miscellaneous materials facings, adhesives, fasteners, tapes, and supplementary materials added to air 90A-2

15 Air ducts Ducts complying with and air connectors complying with shall be permitted General. Air-handling equipment rooms shall be classified into the following three categories: (1) Those used as air plenums (usually return air) (2) Those with air ducts that open directly into a shaft (3) Other air-handling unit rooms Air-Handling Equipment Rooms That Have Air Ducts That Open Directly into a Shaft Air Duct Clearance The clearance from metal air ducts used for heating to assemblies constructed of combustible materials, including plaster on wood lath, shall be not less than 12.7 mm (½ in.), or the combustible material shall be protected with minimum 6.35 mm (¼ in.) thick approved insulating material Structural Members. The installation of air ducts, including the hangers, shall not reduce the fire resistance rating of structural members Ceiling Assemblies. Where the installation of the hangers for the components of an air duct system penetrates an existing ceiling of a fire-resistive floor- or roof-ceiling assembly and necessitates removal of a portion of that ceiling, the replacement material shall be identical to that which was removed, or shall be approved as equivalent to that which was removed As an alternative to repairing the existing ceiling, a new ceiling shall be permitted to be installed below the air duct system, provided the fire resistance rating of the floor- or roof-ceiling design is not reduced * Approved fire dampers shall be provided where air ducts penetrate or terminate at openings in walls or partitions required to have a fire resistance rating of 2 hours or more Where air ducts extend through only one floor and serve only two adjacent stories, the air ducts shall be enclosed (see ), or fire dampers shall be installed at each point where the floor is penetrated Where air ducts and openings for air ducts are used in a floor- or roof-ceiling assembly that is required to have a fire resistance rating, all the materials and the construction of the assembly, including the air duct materials and the size and protection of the openings, shall conform with the design of the fire-resistive assembly, as tested in accordance with NFPA 251, Standard Methods of Tests of Fire Resistance of Building Construction and Materials Air ducts Ducts that pass through the floors of buildings that require the protection of vertical openings shall be enclosed with partitions or walls constructed of materials as permitted by the building code of the authority having jurisdiction, as indicated in or , unless otherwise permitted by The shaft enclosure shall have a minimum fire resistance rating (based on possible fire exposure from either side of the partition or wall) of 1 hour where such air ducts are located in a building less than four stories in height The shaft enclosure shall have a minimum fire resistance rating (based on possible fire exposure from either side of the partition or wall) of 2 hours where such air ducts are located in a building four stories or more in height Where an air duct penetrates only one floor, or one floor and an airhandling equipment penthouse floor, and the air duct contains a fire damper located where the duct penetrates the floor, an air duct enclosure shall not be required A fire-resistive enclosure used as an air duct shall conform with and through Shafts that constitute air ducts or that enclose air ducts used for the movement of environmental air shall not enclose the following: (1) Exhaust ducts used for the removal of smoke- and grease-laden vapors from cooking equipment (2) Ducts used for the removal of flammable vapors (3) Ducts used for moving, conveying, or transporting stock, vapor, or dust (4) Ducts used for the removal of nonflammable corrosive fumes and vapors (5) Refuse and linen chutes (6) Piping, except for noncombustible piping conveying water or other nonhazardous or nontoxic materials (7) Combustible storage A fire damper shall not be required where an air duct system serving only one story is used only for exhaust of air to the outside and is contained within its own dedicated shaft Smoke dampers shall be installed at or adjacent to the point where air ducts pass through required smoke barriers, but in no case shall a smoke damper be installed more than 0.6 m (2 ft) from the barrier, or after the first air duct inlet or outlet, whichever is closer to the smoke barrier, unless otherwise permitted by through Dampers required to close in airflow shall have the calculated airflow at their location shown on the drawings of the air duct system Where smoke detectors required by Section 6.4 are installed in a building not equipped with an approved fire alarm system as specified by , the following shall occur: (1) Smoke detector activation required by Section 6.4 shall cause a visual signal and an audible signal in a normally occupied area. (2) Smoke detector trouble conditions shall be indicated visually or audibly in a normally occupied area and shall be identified as air duct detector trouble. A.1.1 An air duct system has the potential to convey smoke, hot gases, and flame from area to area and to supply air to aid combustion in the fire area. For these reasons, fire protection of an air duct system is essential to safety to life and the protection of property. However, an air duct system s fire integrity also enables it to be used as part of a building s fire protection system. Guidance for the design of smoke-control systems is provided in NFPA 92A, Standard for Smoke-Control Systems Utilizing Barriers and Pressure Differences. A Air Connector. Some such devices are listed in UL Heating, Cooling, Ventilating and Cooking Equipment Directory under the category Connectors (ALNR). These devices, since they do not meet all the requirements for air ducts, have limitations on their use, length, and location. (For limitations on the use of air connectors, see ) A.6.3 The dampers should close as quickly as practicable, subject to requirements of the system fan and air duct characteristics. The designer should evaluate whether the smoke dampers normally should be open or closed and should consider the fail-safe position of the dampers during an event such as a power failure. A Within the scope of this document, smoke dampers reduce the possibility of smoke transfer within ductwork or through wall openings. Activation of smoke dampers can be by area detectors that are installed in the related smoke compartment or by detectors that are installed in the air duct systems. See NFPA 72, National Fire Alarm Code. A.6.4 The use of smoke detectors in relationship to HVAC systems and high air movement areas and the details regarding their optimum installation are covered in Section 5.7 of NFPA 72, National Fire Alarm Code. Protection provided by the installation of smoke detectors and related requirements is intended to prevent the distribution of smoke through the supply air duct system and, preferably, to exhaust a significant quantity of smoke to the outside. Neither function, however, guarantees either the early detection of fire or the detection of smoke concentrations prior to dangerous smoke conditions where smoke movement is other than through the supply air system. Where smoke-control protection for a facility is determined to be needed, see NFPA 92A, Standard for Smoke-Control Systems Utilizing Barriers and Pressure Differences. A The summation of the capacities of individual supply-air fans should be made where such fans are connected to a common supply air duct system (i.e., all fans connected to a common air duct supply system should be considered as constituting a single system with respect to the applicability of the Chapter 6 provisions that are dependent on system capacity). B.1.1 Owners should develop a greater awareness of the life and property protection abilities of air-conditioning systems and should establish a planned maintenance schedule. Failure to maintain proper conditions of cleanliness in air duct systems and carelessness in connection with repair operations have been important contributing causes of several fires that have involved air-conditioning systems. The recommendations in this annex apply, in general, to the period of operation of the system; systems operating only part of the year should be given a thorough general checkup before starting operation and again after a shutdown. Substantiation: This brings consistency with the NEC, which talks about ducts and plenums and not about air ducts. The entire standard addresses air distribution systems. Moreover, there is inconsistency within the standard now because some sections talk about ducts and some talk about air ducts but they mean the same. Committee Statement: The committee concludes that there is a need to have the specific phrase air duct(s) to prevent any confusion of the term. Ballot Results: Affirmative: 26 Negative: 1 Explanation of Negative: HIRSCHLER, M.: It is important to get consistency in language with the NEC and within and the references to duct and air duct are inconsistent at present * Where combination fire and smoke dampers are located within 90A-2 Log #CP10 Final Action: Accept air ducts that are part of an engineered smoke-control system, fusible links or (Entire Document) other approved heat-responsive devices shall have a temperature rating approximately 28 C (50 F) above the maximum smoke-control system designed operating temperature * Dampers shall close against the maximum calculated airflow of that portion of the air duct system in which they are installed The locations and mounting arrangement of all fire dampers, smoke dampers, ceiling dampers, and fire protection means of a similar nature _ Submitter: Technical Committee on Air Conditioning, Recommendation: Review entire document to: 1) Update any extracted material by preparing separate proposals to do so, and 2) review and update references to other organizations documents, by preparing proposal(s) as required. Substantiation: To conform to the NFPA Regulations Governing Committee Projects. required by this standard shall be shown on the drawings of the air duct systems. 90A-3

16 NFPA 5000, Building Construction and Safety Code, 2009 edition. Substantiation: The scope statement of NFPA 79, as shown below, would seem to apply to the control systems for HVAC systems. Extract from NFPA 79: 1.1* Scope. 90A-3 Log #53 Final Action: Accept in Principle in Part The provisions of this standard shall apply to the electrical/electronic (1.1 and A.1.1) equipment, apparatus, or systems of industrial machines operating from a nominal Submitter: Joshua Elvove, U.S. General Services Administration Revise 1.1 as follows: 1.1* Scope. This standard shall cover construction, installation, operation, and maintenance of systems for air conditioning and ventilating, including filters, ducts, and related equipment, to protect life and property from fire, smoke, and gases resulting from fire or from conditions having manifestations similar to fire. The standard does not cover maintenance of fire dampers, ceiling dampers, smoke dampers and combination fire/smoke dampers. Add new text to A.1.1 as follows: Maintenance of fire dampers, ceiling dampers, smoke dampers and combination fire/smoke dampers requirements can be found in other NFPA standards. Substantiation: NFPA 80 is now responsible for inspection, testing and maintenance voltage of 600 volts or less, and commencing at the point of connection of the supply to the electrical equipment of the machine. Many HVAC control systems are at least as complicated as industrial process control systems. This proposal is submitted to correlate with another proposal APPA.ORG has submitted to this committee during this ROP cycle to reduce electrical risk in HVAC control cabinets. Reference to NFPA 79 in strengthens the interoperability of the entire suite of NFPA leading safety practice documents. Committee Statement: The document is not referenced in and is therefore not a proper reference. of fire and ceiling dampers; NFPA 105 is now responsible for inspec- 90A-5 Log #33 Final Action: Accept tion, testing and maintenance of smoke dampers; and both NFPA 80 and NFPA (2.3.2) 105 address inspection, testing and maintenance of combination fire/smoke dampers. As such, any discussion of inspection, testing and maintenance of fire damper, smoke dampers, or combination fire/smoke dampers should be referred to the respective standard. Note: I recognize that Section already addresses this, but it would be better if the scope addressed at the beginning of this standard (in fact, Section could even be deleted in favor of locating this text in Section 1.1 and it s annex. in Principle in Part Revise text to read as follows: Revise 1.1 as follows: 1.1* Scope. This standard shall cover construction, installation, operation, and maintenance of systems for air conditioning and ventilating, including filters, ducts, and related equipment, to protect life and property from fire, smoke, and gases resulting from fire or from conditions having manifestations similar to fire. The standard does not cover maintenance of fire dampers, ceiling dampers, smoke dampers and combination fire/smoke dampers. Add new text to A.1.1 as follows: Maintenance of fire dampers, ceiling dampers, smoke dampers and combination fire/smoke dampers requirements can be found in other NFPA 80 and NFPA105 standards. Committee Statement: The committee concluded that the change to the annex note is appropriate. Scope is what is covered. The proposal goes into what is not covered and the committee does not want to to use a laundry list of what is ASTM International Publications. ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA ASTM C 411, Standard Test Method for Hot-Surface Performance of High- Temperature Thermal Insulation, ASTM D 93, Standard Test Methods for Flashpoint by Pensky-Martens Closed Cup Tester, ASTM E 84, Standard Test Method for Surface Burning Characteristics of Building Materials, 2006a 2009c. ASTM E 136, Standard Test Method for Behavior of Materials in a Vertical Tube Furnace at 750 C, a. ASTM E 2231, Standard Practice for Specimen Preparation and Mounting of Pipe and Duct Insulation Materials to Assess Surface Burning Characteristics, Substantiation: Standards update not covered. If its not in the scope then it isn t covered. 90A-6 Log #41 Final Action: Accept in Part (2.3.3 through 2.3.6) 90A-4 Log #49 Final Action: Reject (Chapter 2) GA Publications. Submitter: David Handwork, Arkansas State University Facilities Management / Rep. APPA.ORG - Association of Education Facilities Executives Recommendation: New text to read as follows: Add NFPA 79 to the list of referenced publications as shown below: 2.2 NFPA Publications. National Fire Protection Association, 1 Batterymarch Park, Quincy, MA NFPA 30, Flammable and Combustible Liquids Code, 2008 edition. NFPA 31, Standard for the Installation of Oil-Burning Equipment, 2006 edition. NFPA 54, National Fuel Gas Code, 2009 edition. NFPA 70, National Electrical Code, 2008 edition. NFPA 72, National Fire Alarm Code, 2007 edition. NFPA 75, Standard for the Protection of Information Technology Equipment, 2009 edition. NFPA 79, Electrical Standard for Industrial Machinery. NFPA 80, Standard for Fire Doors and Other Opening Protectives, 2007 edition. NFPA 101, Life Safety Code, 2009 edition. NFPA 105, Standard for the Installation of Smoke Door Assemblies and Other Opening Protectives, 2007 edition. NFPA 251, Standard Methods of Tests of Fire Resistance of Building Construction and Materials, 2006 edition. NFPA 259, Standard Test Method for Potential Heat of Building Materials, 2008 edition. NFPA 262, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces, 2007 edition. NFPA 286, Standard Methods of Fire Tests for Evaluating Contribution of Wall and Ceiling Interior Finish to Room Fire Growth, 2006 edition. Gypsum Association, 810 First Street, NE, Suite 510, Washington, DC Belcrest Road, Ste 480, Hyattsville, MD Fire Resistance Design Manual (GA 600), 18th edition, th Edition (2009) NAIMA Publications. North American Insulation Manufacturers Association, 44 Canal Center Plaza, Suite 310, Alexandria, VA Fibrous Glass Duct Construction Standards, 5th edition, SMACNA Publications. Sheet Metal and Air Conditioning Contractors National Association, 4201 Lafayette Center Drive, Chantilly, VA Fibrous Glass Duct Construction Standards, 7th edition, HVAC Air Duct Leakage Test Manual, 1st edition, HVAC Duct Construction Standards Metal and Flexible, 3rd edition, nd edition, 1995 with addendum #1, November UL Publications. Underwriters Laboratories Inc., 333 Pfingsten Road, Northbrook, IL ANSI/UL 181, Standard for Safety Factory-Made Air Ducts and Air Connectors, ANSI/UL 181A, Standard for Safety Closure Systems for Use with Rigid Air Ducts, ANSI/UL 181B, Standard for Safety Closure Systems for Use with Flexible Air Ducts and Air Connectors, ANSI/UL 555, Standard for Safety Fire Dampers, ANSI/UL 555C, Standard for Safety Ceiling Dampers, ANSI/UL 555S, Standard for Safety Smoke Dampers, ANSI/UL 723, Standard Test Method for Surface Burning Characteristics of Building Materials, ANSI/UL 867, Standard for Safety Electrostatic Air Cleaners, A-4

17 ANSI/UL 900, Standard for Safety Air Filter Units, ANSI/UL 1820, Standard for Safety Fire Test of Pneumatic Tubing for Flame and Smoke Characteristics, ANSI/UL 1887, Standard for Safety Fire Test of Plastic Sprinkler Pipe for Visible Flame and Smoke Characteristics, ANSI/UL 1995, Standard for Safety Heating and Cooling Equipment, 2003, revised ANSI/UL 2024, Standard for Optical-Fiber and Communications Cable Raceway, ANSI/UL 2043, Standard for Safety Fire Test for Heat and Visible Smoke Release for Discrete Products and Their Accessories Installed in Air-Handling Spaces, , revised Substantiation: Standards update in Part GA Publications. Gypsum Association, 810 First Street, NE, Suite 510, Washington, DC Belcrest Road, Ste 480, Hyattsville, MD Fire Resistance Design Manual (GA 600), 18th edition, th Edition (2009) NAIMA Publications. North American Insulation Manufacturers Association, 44 Canal Center Plaza, Suite 310, Alexandria, VA Fibrous Glass Duct Construction Standards, 5th edition, SMACNA Publications. Sheet Metal and Air Conditioning Contractors National Association, 4201 Lafayette Center Drive, Chantilly, VA Fibrous Glass Duct Construction Standards, 7th edition, HVAC Air Duct Leakage Test Manual, 1st edition, HVAC Duct Construction Standards Metal and Flexible, 3rd edition, nd edition, 1995 with addendum #1, November Committee Statement: The committee handled the UL documents under Proposal 90A-7 (Log #44). 90A-7 Log #44 Final Action: Accept (2.3.6) Submitter: Bob Eugene, Underwriters Laboratories Inc UL Publications. Underwriters Laboratories Inc., 333 Pfingsten Road, Northbrook, IL ANSI/UL 181, Standard for Safety Factory-Made Air Ducts and Air Connectors, 2005, Revised ANSI/UL 181A, Standard for Safety Closure Systems for Use with Rigid Air Ducts, 2005, Revised ANSI/UL 181B, Standard for Safety Closure Systems for Use with Flexible Air Ducts and Air Connectors, 2005, Revised ANSI/UL 555, Standard for Safety Fire Dampers, 2006, Revised ANSI/UL 555C, Standard for Safety Ceiling Dampers, 2006, Revised ANSI/UL 555S, Standard for Safety Smoke Dampers, , Revised ANSI/UL 723, Standard Test Method for Surface Burning Characteristics of Building Materials, ANSI/UL 867, Standard for Safety Electrostatic Air Cleaners, , Revised ANSI/UL 900, Standard for Safety Air Filter Units, 2004, Revised ANSI/UL 1820, Standard for Safety Fire Test of Pneumatic Tubing for Flame and Smoke Characteristics, 2004, Revised ANSI/UL 1887, Standard for Safety Fire Test of Plastic Sprinkler Pipe for Visible Flame and Smoke Characteristics, 2004, Revised ANSI/UL 1995, Standard for Safety Heating and Cooling Equipment, 2003, revised 2005, Revised ANSI/UL 2024, Standard for Optical-Fiber and Communications Cable Raceway, 2004, Revised ANSI/UL 2043, Standard for Safety Fire Test for Heat and Visible Smoke Release for Discrete Products and Their Accessories Installed in Air-Handling Spaces, 1996, revised Substantiation: Update referenced standards to most recent revisions. Add ANSI approval designation to UL A-8 Log #CP2 Final Action: Reject (3.3.1 Accessible) Submitter: Technical Committee on Air Conditioning, Recommendation: Adopt the preferred definition from the NFPA Glossary of Terms as follows: Accessible. Having access to but which first may requires the removal of a panel, door, or similar covering of the item described. [54, 2009] 90A-5 Substantiation: This definition is the preferred definition from the Glossary of Terms. Changing the secondary definition to the preferred definition complies with the Glossary of Terms Project. Committee Statement: The proposed definition add a requirement the committee concludes is too limiting. Comment on Affirmative: BUNKER, JR., M.: I agree with the action to reject. This definition would be in direct conflict with the NEC. Further, the proposed definition would be nearly useless. The proposed definition would seem to imply that removal of drywall or other fixed coverings would be covered by the definition of accessible. HIRSCHLER, M.: The Air Conditioning Committee should request that the definition for this term in be the primary definition, as it is more generic than the one from NFPA 54, which is now the preferred one. This should be done by writing to Standards Council. This advice was also recommended by the Glossary Advisory Committee. 90A-9 Log #CP3 Final Action: Accept (3.3.8 Air Filter) Submitter: Technical Committee on Air Conditioning, Recommendation: Adopt the preferred definition from the NFPA Glossary of Terms as follows: Air Filter. A device used to reduce or remove airborne solids from heating, ventilating, and air-conditioning systems. (90B, 2009) Substantiation: This definition is the preferred definition from the Glossary of Terms. Changing the secondary definition to the preferred definition complies with the Glossary of Terms Project. 90A-10 Log #36 Final Action: Accept in Principle (3.3.X Continued Progressive Combustion (New)) Recommendation: New text to read as follows: 3.3.x Continued progressive combustion. A flame front progressing more than 10.5 ft (3.2 m) beyond the centerline of the burners at some time during a 30 minute test in accordance with ASTM E 84 or ANSI/UL 723. Substantiation: The concept of evidence of continued progressive combustion has never been defined and is usually interpreted by labs as meaning that the flame front in the ASTM E 84 tunnel does not exceed 10.5 ft during the 30 minute test. This provides a definition. NFPA 703 (and building codes) address the following: a flame spread of 25 or less, and shows no evidence of significant progressive combustion when the test is continued for an additional 20-minute period; nor does the flame front progress more than 10.5 ft (3.2 m) beyond the centerline of the burners at any time during the test. In fact, the no evidence of significant progressive combustion, which is undefined is simply taken to mean that the flame front does not progress more than 10.5 ft during the 30 minute test. in Principle New text to read as follows: 3.3.x Continued progressive combustion. A flame front progressing more than 10.5 ft (3.2 m) beyond the centerline of the burners at some time during a 30 minute test during a test in accordance with ASTM E 84 or ANSI/UL 723. Committee Statement: The committee clarified the language. Ballot Results: Affirmative: 26 Negative: 1 Explanation of Negative: BEITEL, J.: I vote against this because the 10.5 ft is used only for fire-retardant treated wood during a 30 minute test. The continuous progressive combustion used in 3.3 applies to Limited-combustible material and not to FRTW. In this definition, the 10.5 ft limit is not applicable...no justification for use in this definition. Comment on Affirmative: HIRSCHLER, M.: Note that there is a difference between evidence of continued progressive combustion, which is used in the definition of limited combustible and evidence of significant progressive combustion which is used for the 30 minute ASTM E 84 test when dealing with fire retardant treated wood. 90A-11 Log #CP4 Final Action: Reject ( Dedicated Smoke-Control System) Submitter: Technical Committee on Air Conditioning, Recommendation: Adopt the preferred definition from the NFPA Glossary of Terms as follows:

18 Dedicated Smoke-Control System. A system that is intended for the purpose of smoke control only, which are separate systems of air moving and distribution equipment that do not function under normal building operating conditions. [1, 2009] Substantiation: This definition is the preferred definition from the Glossary of Terms. Changing the secondary definition to the preferred definition complies with the Glossary of Terms Project. Committee Statement: The term is not used in the document. designed to close automatically upon detection of heat, to interrupt migratory airflow, and to restrict the passage of flame. [221, 2009] Fire dampers are classified for use in either static systems or for dynamic systems, where the dampers are rated for closure under airflow. [80, 2009] A Fire Damper. Some such devices are listed in UL Heating, Cooling, Ventilating and Cooking Equipment Directory under the category of Fire Dampers for Fire Barrier and Smoke Applications (EMME). Substantiation: The definition for fire damper should be consistent between the standard that requires its installation () and the standard that requires its maintenance (NFPA 80), given it s the same piece of equipment. The proposed definition comes from NFPA 80 (which basically comes from NFPA 221) and simply adds the second sentence from the definition of fire damper in NFPA 80. If the committee has an issue with this definition, 90A-12 Log #CP5 Final Action: Accept in Principle suggest they reconcile this with the NFPA 80 committee. ( Ceiling Radiation Damper) Submitter: Technical Committee on Air Conditioning, Recommendation: Adopt the preferred definition from the NFPA Glossary of Terms as follows: Ceiling Radiation Damper. A listed device installed in a ceiling membrane of a fire resistance-rated floor-ceiling or roof-ceiling assembly to automatically limit the radiative heat transfer through an air inlet/outlet opening. [5000, 2009] Substantiation: This definition is the preferred definition from the Glossary of Terms. Changing the secondary definition to the preferred definition complies with the Glossary of Terms Project. in Principle Adopt the preferred definition from the NFPA Glossary of Terms as follows: Ceiling Radiation Damper. A listed device installed in a ceiling membrane of a fire resistance-rated floor-ceiling or roof-ceiling assembly to in Principle Revise definition of Fire Damper in as follows: * Fire Damper. A device, installed in an air distribution system, designed to close automatically upon detection of heat, to interrupt migratory airflow, and to restrict the passage of flame. [221, 2009] Add to the end of annex note A : Fire dampers are classified for use in either static systems or for dynamic systems, where the dampers are rated for closure under airflow. [80, 2009] Committee Statement: The committee removed the reference to NFPA 221, Standard for High Challenge Fire Walls, Fire Walls, and Fire Barrier Walls, as the chosen definition does not match that in 221. The committee moved the proposed last sentence to the Annex. automatically limit the radiative heat transfer through an air inlet/outlet opening. 90A-15 Log #CP6 Final Action: Accept ( Fan) Committee Statement: See committee action and statement on Proposal 90A- 13 (Log #56). Submitter: Technical Committee on Air Conditioning, Recommendation: Adopt the preferred definition from the NFPA Glossary of Terms as follows: Fan. A blower or exhauster assembly comprising blades or runners and housings or casings. [211, 2006] 90A-13 Log #56 Final Action: Accept in Principle Substantiation: This definition is the preferred definition from the Glossary of ( Ceiling Radiation Damper and A ) Submitter: Joshua Elvove, U.S. General Services Administration Recommendation: Revise the definition of Ceiling Radiation Damper in as follows: * Ceiling Radiation Damper. A listed device installed in a ceiling membrane of a fire resistance-rated floor-ceiling or roof ceiling assembly to automatically limit the radiant radiative heat transfer through an air outlet or air inlet/outlet opening. [5000, 2009] in the ceiling of a floor- or roof-ceiling assembly having not less than a 1-hour fire resistance rating. Such a device is described in the construction details for some tested floor- or roof-ceiling assemblies. A Ceiling Radiation Damper. Some such devices are listed in UL Fire Resistance Directory under the category of Ceiling Damper (CABS). Substantiation: The definition for ceiling radiation damper should be consistent between the standard that requires its installation () and the Terms. Changing the secondary definition to the preferred definition complies with the Glossary of Terms Project. Ballot Results: Affirmative: 25 Negative: 2 Explanation of Negative: BUCKLEY, J.: The proposed fan definition does not cover the use of plug fans (fans that do not have a housing around the fan). DILLON, M.: The proposed definition is technically in error and incompatible with the industry-accepted definition of a fan, to wit: see ASHRAE Terminology of Heating, Ventilation, Air Conditioning, & Refrigeration, pg. 42 Fan Device for moving air by two or more blades or vanes attached to a rotating shaft. See also impeller. Please note in reviewing the more correct definition that there are several fans that do not include a housing, i.e. plug fans. standard that requires its maintenance (NFPA 80), given it s the same piece of 90A-16 Log #31 Final Action: Accept equipment. The proposed definition comes from NFPA 80 (which basically comes from NFPA 5000). If the committee has an issue with this definition, suggest they reconcile this with the NFPA 80 committee. Note: the NFPA manual of style doesn t permit performance criteria within a definition, hence, the language regarding not less than 1 hour should be stricken anyway (performance criteria belongs in Chapter 5). in Principle Revise the definition of Ceiling Radiation Damper in as follows: * Ceiling Radiation Damper. A listed device installed in a ceiling membrane of a fire resistance-rated floor-ceiling or roof ceiling assembly to automatically limit the radiant radiative heat transfer through an air outlet or air inlet/outlet opening. [5000, 2009] in the ceiling of a floor- or roof-ceiling assembly having not less than a 1-hour fire resistance rating. Such a device is described in the construction details for some tested floor- or roof-ceiling assemblies. A Ceiling Radiation Damper. Some such devices are listed in UL Fire Resistance Directory under the category of Ceiling Damper (CABS). Committee Statement: The committee removed the word radiation to be consistent with the text and the test standard. (3.3.16, and ) * Fire Resistance Rating. The time, in minutes or hours, that materials or assemblies have withstood a fire exposure as established in accordance with the test procedures of NFPA 251, Standard Methods of Tests of Fire Resistance of Building Construction and Materials, ASTM E 119, Standard Test Methods for Fire Tests of Building Construction and Materials, or ANSI/UL 263, Standard for Fire Tests of Building Construction and Materials Where a service opening is necessary in an air duct located above the ceiling of a floor- or roof-ceiling assembly that has been tested and assigned a fire resistance rating in accordance with NFPA 251, Standard Methods of Tests of Fire Resistance of Building Construction and Materials, ASTM E 119, Standard Test Methods for Fire Tests of Building Construction and Materials, or ANSI/UL 263, Standard for Fire Tests of Building Construction and Materials, access shall be provided in the ceiling Where air ducts and openings for air ducts are used in a floor- or roof-ceiling assembly that is required to have a fire resistance rating, all the materials and the construction of the assembly, including the air duct materials and the size and protection of the openings, shall conform with the design of the fire-resistive assembly, as tested in accordance with NFPA 251, Standard 90A-14 Log #57 Final Action: Accept in Principle Methods of Tests of Fire Resistance of Building Construction and Materials, ( Fire Damper and A ) Submitter: Joshua Elvove, U.S. General Services Administration ASTM E 119, Standard Test Methods for Fire Tests of Building Construction and Materials, or ANSI/UL 263, Standard for Fire Tests of Building Construction and Materials. Recommendation: Revise definition of Fire Damper in as follows: * Fire Damper. A device, installed in an air distribution system, 90A-6

19 Also add ASTM E 119, Standard Test Methods for Fire Tests of Building Construction and Materials and ANSI/UL 263, Standard for Fire Tests of Building Construction and Material, into Chapter 2 on referenced standards Substantiation: NFPA codes and standards, including NFPA 101, recognize ASTM E 119 and UL 263 as alternate acceptable tests for assessing fire resistance rating. 90A-17 Log #37 Final Action: Reject ( and others) * Limited-Combustible (Material). Refers to a building construction material not complying with the definition of noncombustible material that, in the form in which it is used, has a potential heat value not exceeding 3500 Btu/ lb (8141 kj/kg), where tested in accordance with NFPA 259, Standard Test Method for Potential Heat of Building Materials, and includes either of the following: (1) materials having a structural base of noncombustible material, with a surfacing not exceeding a thickness of 1/8 in. (3.2 mm) that has a flame spread index not greater than 50; and (2) materials, in the form and thickness used, having neither a flame spread index greater than 25 and a flame front progressing no more than 10.5 ft (3.2 m) in a 30 minute test nor evidence of continued progressive combustion, and of such composition that surfaces that would be exposed by cutting through the material on any plane would have neither a flame spread index greater than 25 nor a flame front progressing no more than 10.5 ft (3.2 m) in a 30 minute test evidence of continued progressive combustion, when tested in accordance with ASTM E 84, Standard Test Method of Surface Burning Characteristics of Building Materials, or ANSI/UL 723 Standard Test Method for Surface Burning Characteristics of Building Materials Gypsum board having a maximum flame spread index of 25 and a flame front progressing no more than 10.5 ft (3.2 m) in a 30 minute test without evidence of continued progressive combustion and a maximum smoke developed index of 50 when tested in accordance with ASTM E 84, Standard Test Method for Surface Burning Characteristics of Building Materials, or ANSI/UL 723, Standard Test Method for Surface Burning Characteristics of Building Materials, shall be permitted to be used for negative pressure exhaust and return ducts where the temperature of the conveyed air does not exceed 52 C (125 F) in normal service * Pipe and duct insulation and coverings, duct linings, vapor retarder facings, adhesives, fasteners, tapes, and supplementary materials added to air ducts, plenums, panels, and duct silencers used in duct systems, unless otherwise provided for in or , shall have, in the form in which they are used, a maximum flame spread index of 25 and a flame front progressing no more than 10.5 ft (3.2 m) in a 30 minute test without evidence of continued progressive combustion and a maximum smoke developed index of 50 when tested in accordance with ASTM E 84, Standard Test Method for Surface Burning Characteristics of Building Materials, or with ANSI/UL 723, Standard Test Method for Surface Burning Characteristics of Building Materials. Pipe and duct insulation and coverings, duct linings and their adhesives, and tapes shall use the specimen preparation and mounting procedures of ASTM E 2231, Standard Practice for Specimen Preparation and Mounting of Pipe and Duct Insulation Materials to Assess Surface Burning Characteristics Materials that, in the form in which they are used, have a potential heat value not exceeding 8141 kj/kg (3500 Btu/lb), where tested in accordance with NFPA 259, Standard Test Method for Potential Heat of Building Materials, and include either of the following: (1) Materials having a structural base of noncombustible material, with a surfacing not exceeding a thickness of 3.2 mm (1/8 in.) that has a flame spread index not greater than 50 (2) Materials, in the form and thickness used, having neither a flame spread index greater than 25 and a flame front progressing no more than 10.5 ft (3.2 m) in a 30 minute test nor evidence of continued progressive combustion, and of such composition that surfaces that would be exposed by cutting through the material on any plane would have neither a flame spread index greater than 25 and a flame front progressing no more than 10.5 ft (3.2 m) in a 30 minute test nor evidence of continued progressive combustion, when tested in accordance with ASTM E 84, Standard Test Method of Surface Burning Characteristics of Building Materials, or ANSI/UL 723, Standard Test Method of Surface Burning Characteristics of Building Materials Materials that, in the form in which they are used, have a potential heat value not exceeding 3500 Btu/lb (8141 kj/kg), where tested in accordance with NFPA 259, Standard Test Method for Potential Heat of Building Materials, and include either of the following: (1) Materials having a structural base of noncombustible material, with a surfacing not exceeding a thickness of 1/8 in. (3.2 mm) that has a flame spread index not greater than 50 (2) Materials, in the form and thickness used, having neither a flame spread index greater than 25 and a flame front progressing no more than 10.5 ft (3.2 m) in a 30 minute test nor evidence of continued progressive combustion, 90A-7 and of such composition that surfaces that would be exposed by cutting through the material on any plane would have neither a flame spread index greater than 25 and a flame front progressing no more than 10.5 ft (3.2 m) in a 30 minute test nor evidence of continued progressive combustion, when tested in accordance with ASTM E 84, Standard Test Method of Surface Burning Characteristics of Building Materials, or ANSI/UL 723, Standard Test Method for Surface Burning Characteristics of Building Materials. Substantiation: The concept of evidence of continued progressive combustion has never been defined and is usually interpreted by labs as meaning that the flame front in the ASTM E 84 tunnel does not exceed 10.5 ft during the 30 minute test. NFPA 703 (and building codes) address the following: a flame spread of 25 or less, and shows no evidence of significant progressive combustion when the test is continued for an additional 20-minute period; nor does the flame front progress more than 10.5 ft (3.2 m) beyond the centerline of the burners at any time during the test. In fact, the no evidence of significant progressive combustion, which is undefined is simply taken to mean that the flame front does not progress more than 10.5 ft during the 30 minute test. Committee Statement: This change is not needed based upon the action on 90A-10 (Log #36). 90A-18 Log #CP7 Final Action: Reject ( Limited Combustible Material) Submitter: Technical Committee on Air Conditioning, Recommendation: Adopt the preferred definition from the NFPA Glossary of Terms as follows: Limited Combustible Material. Refers to a building construction material not complying with the definition of noncombustible that, in the form in which it is used, has a potential heat value not exceeding 8141 kj/kg (3500 Btu/lb), where tested in accordance with NFPA 259 and includes either (1) materials having a structural base of noncombustible material, with a surfacing not exceeding a thickness of 3.2 mm (1/8 in.) that has a flame spread index not greater than 50, or (2) materials, in the form and thickness used having neither a flame spread index greater than 25 nor evidence of continued progressive combustion, and of such composition that surfaces that would be exposed by cutting through the material on any plane would have neither a flame spread index greater than 25 nor evidence of continued progressive combustion, when tested in accordance with UL 723 or ASTM E 84. (220, 2009) Substantiation: This definition is the preferred definition from the Glossary of Terms. Changing the secondary definition to the preferred definition complies with the Glossary of Terms Project. Committee Statement: The committee prefers the current definition and the substantiation is incorrect as this is not the only preferred definition. 90A-19 Log #CP8 Final Action: Accept ( Noncombustible Material) Submitter: Technical Committee on Air Conditioning, Recommendation: Adopt the preferred definition from the NFPA Glossary of Terms as follows: Noncombustible Material. A material that, in the form in which it is used and under the conditions anticipated, will not ignite, burn, support combustion, or release flammable vapors, when subjected to fire or heat. Materials that are reported as passing ASTM E 136 Standard Test Method for Behavior of Materials in a Vertical Tube Furnace at 750 Degrees C, shall be are considered noncombustible materials. [220, 2009] Substantiation: This definition is the preferred definition from the Glossary of Terms. Changing the secondary definition to the preferred definition complies with the Glossary of Terms Project. Comment on Affirmative: KOFFEL, W.: The proposed revision to the definition is not consistent with revisions to NFPA 220 and a new definition within the NFPA 101 and NFPA 5000 projects. 90A-20 Log #17 Final Action: Accept ( Noncombustible Material and A ) * Noncombustible Material. A material that, in the form in which it is

20 used and under the conditions anticipated, will not ignite, burn, support combustion, or release flammable vapors, when subjected to fire or heat. Materials that are reported as passing ASTM E 136, Standard Test Method for Behavior of Materials in a Vertical Tube Furnace at 750 Degrees C, shall be considered noncombustible materials.[220, 2009] A A material that is reported as complying with the pass/fail criteria of ASTM E 136 when tested in accordance with the test method and procedure in ASTM E 2652, Standard Test Method for Behavior of Materials in a Tube Furnace with a Cone-shaped Airflow Stabilizer, at 750 Degrees C, is considered a noncombustible material. Also add ASTM E e1 Standard Test Method for Behavior of Materials in a Tube Furnace with a Cone-shaped Airflow Stabilizer, at 750 C into the annex on informational references Substantiation: The definition proposed is consistent with that in NFPA 220, Standard on Types of Building Construction, 2009 edition. The proposed definition will be extracted from NFPA 220, 2009 edition. The annex note is being added because the equipment for ASTM E 136 is virtually unavailable and therefore ASTM E 2652 has been developed as an alternate apparatus and is presented as an option. This has already been addressed in several other documents, including NFPA 101, 5000 and draft NFPA A-21 Log #CP9 Final Action: Accept ( Smoke Barrier) Submitter: Technical Committee on Air Conditioning, Recommendation: Adopt the preferred definition from the NFPA Glossary of Terms as follows: Smoke Barrier. A continuous membrane, or a membrane with discontinuities created by protected openings, where such membrane is designed and constructed to restrict the movement of smoke. [5000, 2009] Substantiation: This definition is the preferred definition from the Glossary of Terms. Changing the secondary definition to the preferred definition complies with the Glossary of Terms Project. 90A-22 Log #58 Final Action: Accept in Principle ( Smoke Barrier and A ) Submitter: Joshua Elvove, U.S. General Services Administration Recommendation: Revise the definition of Smoke Barrier in and revise corresponding annex note A as follows: * Smoke Barrier. A continuous membrane, or a member with discontinuities created by protected openings, where such member either vertical or horizontal, such as a wall, floor, or ceiling assembly, that is designed and constructed to restrict the movement of smoke. A Smoke Barrier. A smoke barriers might be vertically or horizontally aligned, such as a wall, floor or ceiling assembly. A smoke barrier might or might not have a fire resistance rating. See also NFPA 101, Life Safety Code, Chapter 8, for additional guidance. Substantiation: The definition for smoke barrier should be consistent between NFPA documents that utilize the term. The proposed definition comes from NFPA 101 which is the same as the definition in NFPA If the committee has an issue with this definition, suggest they reconcile this with the NFPA 101 committee. Note: the NFPA manual of style doesn t permit lists (i.e,. using the term such as in a definition); hence, relocating this text to the annex is more appropriate. in Principle Revise the definition of Smoke Barrier in and revise corresponding annex note A as follows: * Smoke Barrier. A continuous membrane, or a membrane with discontinuities created by protected openings, where such membrane either vertical or horizontal, such as a wall, floor, or ceiling assembly, that is designed and constructed to restrict the movement of smoke. A Smoke Barrier. A smoke barrier might be vertically or horizontally aligned, such as a wall, floor or ceiling assembly. A smoke barrier might or might not have a fire resistance rating. See also NFPA 101, Life Safety Code, Chapter 8, for additional guidance. Committee Statement: The committee editorially changed member to membrane in two places and barriers to barrier. 90A-23 Log #CP16 Final Action: Accept ( ) Submitter: Technical Committee on Air Conditioning, * Air filters shall be rated either as Class 1 or Class 2 in accordance comply with ANSI/UL 900, Standard for Safety Air Filter Units. Substantiation: Class I and 2 are no longer used by the UL standard. 90A-24 Log #50 Final Action: Reject ( ) Submitter: David Handwork, Arkansas State University Facilities Management / Rep. APPA.ORG - Association of Education Facilities Executives Recommendation: New text to read as follows: Add the following text to Chapter 4 (NEW) Machine Safeguarding. Moving parts, such as shafts, pulleys, couplings and belts, installed within air ducts that are accessible for maintenance, shall be protected with metal guards that enclose all moving parts. Substantiation: The danger posed by moving parts -- especially the belts associated with driven equipment within large, walk-in air ducts -- ought to be self evident. This is a borderline product-standard/field-installation issue that ought to be addressed in both product and installation standards for HVAC equipment. This is a first step for covering it in an installation standard even if it means field fabrication of guarding. Hopefully, manufacturers will take a cue from this requirement and build it into the cost of the product. Committee Statement: The committee does not find this addition to be necessary nor within the committee s scope. This more appropriately belongs in an OSHA standard. 90A-25 Log #2 Final Action: Reject ( ) Submitter: Jonathan Paul, Lebanon Fire Dept. Recommendation: New text to read as follows: (New paragraph ): Window air-conditioning units shall only be used for listed use. Substantiation: Numerous improper installations of window air-conditioning are found on inspection of buildings. In particular, computer server rooms are being cooled by window air-conditioning units instead of thru the wall units or central air. These window units are being found exhausting into wall spaces, closets and attics, presenting a possible fire hazard. Air-conditioning manufacturer s that I have spoken to have stated that such installations void all warranties and safety features. Committee Statement: This proposal is outside the scope of the document. does not address appliances. 90A-26 Log #19 Final Action: Accept ( ) Gypsum board having a maximum flame spread index not exceeding of 25 without evidence of continued progressive combustion and a maximum smoke developed index not exceeding of 50 when tested in accordance with ASTM E 84, Standard Test Method for Surface Burning Characteristics of Building Materials, or ANSI/UL 723, Standard Test Method for Surface Burning Characteristics of Building Materials, shall be permitted to be used for negative pressure exhaust and return ducts where the temperature of the conveyed air does not exceed 52 C (125 F) in normal service. Substantiation: To get language consistent with other equivalent sections. 90A-8

21 A flame retardant fabric is usually taken to mean a fabric that complies 90A-27 Log #29 Final Action: Reject with the small-scale test from NFPA 701, which has been eliminated from that ( and A ) Air ducts shall be considered to be in compliance with this requirement where constructed and installed in accordance with the ASHRAE Handbook HVAC Systems and Equipment, and with one of the following as applicable: (1) NAIMA Fibrous Glass Duct Construction Standards (2) SMACNA Fibrous Glass Duct Construction Standard (3) SMACNA HVAC Duct Construction Standards Metal and Flexible (4) SMACNA HVAC Air Duct Leakage Test Manual A See NAIMA Fibrous Glass Duct Liner Standard, and NAIMA Fibrous Glass Duct Construction Standards and NAIMA Residential Fibrous Glass Duct Construction Standards for additional information. Substantiation: Corrects title and correlates with references Committee Statement: The committee concludes that residential duct construction is outside the scope of 90A. standard for over 10 years. Present versions of NFPA 701 contain two tests (depending on the weight, or areal density of the fabric) but both of them are very much less severe than ASTM E 84 and neither one measures smoke. The term flame retardant fabric is misleading and has been eliminated from most NFPA documents. In fact, this section can be interpreted to consider that the fabrics need to meet both fire tests: NFPA 701 and ASTM E 84 with 25/50. This is a clarification, in that case. Fabrics that meet ASTM E 84 with 25/50 need not be tested also to NFPA 701. Note that the proposal does not require testing of the system and thus allows unlisted combinations of materials tested individually as long as they are restricted to a maximum length of 10 in. in Principle Revise text to read as follows: Air Connectors Air connectors are limited-use, flexible air ducts that shall not be required to conform to the provisions for air ducts where they meet the requirements of through Air connectors shall conform to the requirements for Class 0 or Class 1 connectors when tested in accordance with ANSI/UL 181, Standard for Safety Factory-Made Air Ducts and Air Connectors Class 0 or Class 1 air connectors shall not be used for ducts containing air at temperatures in excess of 121 C (250 F) Air connector runs shall not exceed 4.27 m (14 ft) in length. 90A-28 Log #18 Final Action: Accept in Principle Air connectors shall not pass through any wall, partition, or enclosure ( ) of a vertical shaft that is required to have a fire resistance rating of 1 hour Electrical wires and cables or optical fiber cables, or optical-fiber and communications raceways within a duct enclosure shall comply with Substantiation: UL 2024 is used for testing and listing all types of raceways, including optical fiber raceways, communications raceways, signaling raceways, fire alarm raceways. CATV raceways when they are to be used in plenums. The critical issue is that the raceway has been tested and listed to UL 2024 and it is important to eliminate potential language problems. The change in nomenclature does not change the requirements. in Principle Revise text to read as follows: Electrical wires and cables or optical fiber cables, or optical-fiber and communications raceways within a duct enclosure shall comply with Committee Statement: The committee deleted raceways from this section as it is not the correct location. or more Air connectors shall not pass through floors Vibration isolation connectors in duct systems shall be made of an approved flame-retardant fabric or shall consist of sleeve joints with packing of approved material, each having a maximum flame spread index of 25 and a maximum smoke developed index of Vibration isolation connectors in duct systems shall be made of materials having a maximum flame spread index of 25 and a maximum smoke developed index of Approved flame-retardant fabric Unlisted vibration isolation connectors complying with having a maximum length of 254 mm (10 in.) in the direction of airflow shall be permitted to be used Wiring shall not be installed in air connectors. Committee Statement: The committee deleted and renumber and replace with the wording from 90A-26 (Log #19) for consistency. 90A-30 Log #51 Final Action: Reject ( ) Submitter: David Handwork, Arkansas State University Facilities 90A-29 Log #42 Final Action: Accept in Principle Management / Rep. APPA.ORG - Association of Education Facilities (4.3.2) Executives Air Connectors Air connectors are limited-use, flexible air ducts that shall not be required to conform to the provisions for air ducts where they meet the requirements of through Air connectors shall conform to the requirements for Class 0 or Class 1 connectors when tested in accordance with ANSI/UL 181, Standard for Safety Factory-Made Air Ducts and Air Connectors Class 0 or Class 1 air connectors shall not be used for ducts containing air at temperatures in excess of 121 C (250 F) Air connector runs shall not exceed 4.27 m (14 ft) in length Air connectors shall not pass through any wall, partition, or enclosure of a vertical shaft that is required to have a fire resistance rating of 1 hour or more Air connectors shall not pass through floors Vibration isolation connectors in duct systems shall be made of an approved flame-retardant fabric or shall consist of sleeve joints with packing of approved material, each having a maximum flame spread index of 25 and a maximum smoke developed index of Vibration isolation connectors in duct systems shall be made of materials having a maximum flame spread index of 25 and a maximum smoke developed index of Air connector runs shall not exceed m (14 6 ft) in length. Substantiation: The allowance of 14 ft of flexible duct connectors is excessive in practice for the following reasons: 1. Texas A&M research supported by ASHRAE exhibited flexible ductwork at compression levels over 4% has 2 to 10 times the pressure losses over sheet metal (Ref. Weaver Static pressure losses in 6, 8, and 10 non-metallic flexible duct ). 2. Excessive pressure losses will compromise effective air distribution and will dramatically increase fan energy use. 3. Flexible ductwork in commercial settings can be more susceptible to damage than rigid duct. Air leaks in punctured ductwork can be a significant loss in energy and air flow to the conditioned space. Allowing lengths up to 14 ft. increases the susceptibility to damage. 4. The energy losses relative to excessive use of flexible ductwork contradicts NFPA 900 Building Energy Code 5. The air flow losses with flexible ductwork can also contradict ASHRAE 62 for adequate airflow to spaces. Note: Supporting material is available for review at NFPA Headquarters. Committee Statement: The committee disagrees with the change as the substantiation is not relevant to fire safety nor is technically supported Approved flame-retardant fabric Unlisted vibration isolation connectors complying with having a maximum length of 254 mm (10 in.) in the direction of airflow shall be permitted to be used Wiring shall not be installed in air connectors. Substantiation: Vibration isolation connectors need to be made of materials complying with the same requirements as other materials in ducts. Even fabrics are being manufactured that meet the ASTM E 84 25/50 requirements. 90A-9

22 90A-31 Log #39 Final Action: Reject ( (New), and ) Recommendation: New text to read as follows: Smoke detectors required by shall not be required to meet flame spread index or smoke developed index requirements Smoke detectors installed in ducts or plenums shall exhibit a maximum peak optical density of 0.5 or less, an average optical density of 0.15 or less, and a peak heat release rate of 100 kw or less when tested in accordance with UL 2043, Standard for Safety Fire Test for Heat and Visible Smoke Release for Discrete Products and Their Accessories Installed in Air-Handling Spaces Smoke detectors shall comply with the requirements of not be required to meet the provisions of this section Smoke detectors shall comply with the requirements of not be required to meet the requirements of Substantiation: The standard does not contain any fire safety requirements associated with smoke detectors at present. If the smoke detectors are installed in ducts or in plenums they should comply with the requirements of UL 2043 just like all other discrete electrical equipment in plenums (see and ). This is probably already implied by the plenum sections but needs to be explicitly stated. Committee Statement: ANSI/UL 268A specifies the flame spread test that is the industry test standard. Ballot Results: Affirmative: 26 Negative: 1 Explanation of Negative: HIRSCHLER, M.: Smoke detectors are discrete electrical equipment and they should comply with the same requirements as other such equipment when installed in plenums. Comment on Affirmative: BUNKER, JR., M.: I agree with the TC action. The proposed requirements are unnecessary. Most duct smoke detectors installed today are located in external housings and are power limited. They pose little or no safety hazard. 90A-32 Log #7 Final Action: Reject ( ) Submitter: Stanley Kaufman, CableSafe Inc. / Rep. The Society of the Plastics Industry Recommendation: Revise as shown: Wiring shall be permitted to be installed in air ducts, only if the wiring is directly associated with the air distribution system and each length of cable exposed to the airflow does not exceed 1.22 m (4 ft). Substantiation: The current text could be interpreted to only permit an aggregate sum of 4 feet of all the cables exposed to the airflow. Committee Statement: This would allow a significant increase in the aggregate total of wire and cable. The committee prefers the current language as allowing the appropriate amount of wire and cable for the desired level of safety. Ballot Results: Affirmative: 25 Negative: 2 Explanation of Negative: KAHN, S.: The proposal should have been accepted. Does the current language indicate the the 4 ft limitation refers to the total length of cable permitted in a duct or that each cable run is limited to 4 ft? There may be several devices needed in an air duct and I believe the current wording refers to each cable run. The proposal clarifies the intent of this section and does not allow for any increased amount of cable. KOFFEL, W.: The current language is not enforceable. Based upon the Committee Statement the total length of cable in air ducts (is that an individual duct or the entire system of ducts within an building) is limited to 4 ft. 90A-33 Log #8 Final Action: Accept ( ) Submitter: Stanley Kaufman, CableSafe Inc. / Rep. The Society of the Plastics Industry Recommendation: Revise as shown: * Electrical wires and cables and optical fiber cables shall consist of wires or cables listed as having a maximum peak optical density of 0.50 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.5 m (5 ft) or less when tested in accordance with NFPA 262, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces, or shall be installed in metal raceways without an overall nonmetallic covering, or metal sheathed cable without an overall nonmetallic covering,. 90A-10 Substantiation: Metal raceways can have a combustible nonmetallic jacket and therefore would not be suitable for an application exposed to the airflow. Likewise for metal sheathed cables. 90A-34 Log #13 Final Action: Reject ( ) Submitter: William C. Wagner, Certification Solutions * Electrical wires and cables and optical fiber cables shall be consist of wires or cables listed as having a maximum peak optical density of 0.50 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.5 m (5 ft) or less when tested in accordance with NFPA 262, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces, or shall be installed in metal raceways, or metal sheathed cable or Reinforced Thermosetting Resin Conduit (RTRC) listed as having a maximum peak optical density of 0.50 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.5 m (5 ft) or less when tested in accordance with NFPA 262, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces. Substantiation: Paragraph of currently permits electrical wires and cables and optical fiber cables to be installed in metal raceways or metal sheathed cable. As an alternative to this, the wires and cables are not required to be installed using one of these methods if they themselves comply with the required optical smoke density and flame propagation requirements specified in when evaluated in accordance with the Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces, NFPA 262. However, the use of any type of nonmetallic raceway is not currently permitted. Recent developments in the formulation of materials which can be utilized in the production of Reinforced Thermosetting Resin Conduit (RTRC) warrant an expansion of the permitted installation methods. Resins for RTRC that comply with the identical flame propagation and smoke optical density requirements currently delineated in for wires and cables, while still complying with all listing requirements for RTRC, will permit the use of this alternative wire and cable installation method without any increase in flame and smoke hazards. Therefore, RTRC meeting all of these requirements should be permitted as an acceptable alternative to metal raceways for the installation of electrical wires and cables and optical fiber cables. Compliance with the flame propagation and optical smoke density requirements of NFPA 262, as well as ASTM E 84, has been confirmed through independent testing at Underwriters Laboratories. The inclusion of this type of conduit in is a necessary first step toward their eventual listing for this application. Committee Statement: RTRC should not simply be treated as non-combustible. It needs to be tested as other materials are. The committee also reaffirms its position not to create a laundry list of products. 90A-35 Log #60 Final Action: Accept ( ) Submitter: Joshua Elvove, U.S. General Services Administration Recommendation: Revise as follows: A service opening shall be provided in air ducts adjacent to each fire damper, smoke damper, combination fire/smoke damper, and any smoke detectors that need access for installation, cleaning, maintenance, inspection, and testing. Substantiation: To ensure that service openings are also provided for combination fire/smoke dampers. 90A-36 Log #61 Final Action: Accept ( ) Submitter: Joshua Elvove, U.S. General Services Administration Recommendation: Revise as follows: Inspection windows shall be permitted in air ducts, provided they are glazed with wired or fire protection rated glass. Substantiation: To permit other appropriate glazing and not limit this to only wire glass.

23 90A-37 Log #67 Final Action: Reject ( (New) ) Submitter: Joshua Elvove, U.S. General Services Administration Recommendation: Add new as follows: Smoke dampers shall be installed in systems with a capacity greater than 7080 L/sec (15,000 ft3/min) to isolate the air-handling equipment, including filters, from the remainder of the system on both the building supply and return sides, in order to restrict the circulation of smoke, unless specifically exempted by or Air-handling units located on the floor they serve and serving only that floor shall be exempt from the requirements of Air-handling units located on the roof and serving only the floor immediately below the roof shall be exempt from the requirements of Air handling units located in buildings that are completely sprinkler protected in accordance with NFPA 13, Standard for Installation of Sprinkler Systems do not require smoke dampers on the return side. Substantiation: Given the two existing exceptions, it would seem appropriate to allow a third for return air units in buildings completely protected by sprinkler systems when the sprinkler system has been installed in accordance with NFPA 13, since the likelihood of smoke of any significance in fully sprinklered buildings is minimal. Furthermore, air handling units of this size already require detection on both the supply and return side which would cause the unit(s) to shut down upon detection of smoke. Hence, whatever little smoke there is would not be recirculated throughout the building. Moreover, smoke from a supply air side filter or motor fire, or from an outside fire would still be prevented from spreading through the building since the supply side smoke damper is still required. Committee Statement: The change would eliminate the requirement to isolate the unit when the unit catches fire which is exactly what the committee wants to happen. 90A-38 Log #CP1 Final Action: Accept ( ) Submitter: Technical Committee on Air Conditioning, Recommendation: Clarify the text that was the subject of the following Formal Interpretation. Question No. 1: Is the intent of the paragraph to require multiple locations for return air in a corridor? Answer: No. Question No. 2: Is one point of return air with multiple supply air locations as indicated on the sketch below acceptable? Answer: Yes. Resident room Resident room Return grille 500 cfm Resident room Heat pump unit Resident room Resident room Resident room Resident room Exit corridor Day room Resident room Resident room Supply air 100 cfm typical of 5 Resident room Substantiation: The Regulations Governing Committee Projects require that a proposal be processed to clarify the text of a document on which a Formal Interpretation has been issued. After issuance of the next edition of the document, the Formal Interpretation will no longer be published. Committee Statement: The committee concludes that the text has been sufficiently clarified since this interpretation was originally issued to permit removing it from publication in future editions. 90A-11 90A-39 Log #20 Final Action: Accept in Part ( ) Accessible abandoned material shall be deemed to be storage and shall be removed not be permitted to remain. Where cables are identified for future use with a tag, the tag shall be of sufficient durability to withstand the environment involved. Substantiation: This requirement is based on the equivalent requirement in the NEC, which has revised the language to make the requirement more explicit: abandoned materials must be removed. If cables are present intended for future use they need to be appropriately identified for future use with a tag. The main reason for requiring removal of abandoned materials is for safety of personnel in terms of the potential for abandoned material to fall and/or entangle workers, electrical personnel and firefighters. Note that section states as follows: The accessible portion of abandoned materials exposed to airflow shall be removed. in Part Revise text to read as follows: Accessible abandoned material shall be deemed to be storage and shall be removed not be permitted to remain. Where cables are identified for future use with a tag, the tag shall be of sufficient durability to withstand the environment involved. Committee Statement: The committee concludes that the second sentence is covered in the NEC and is not necessary here. Ballot Results: Affirmative: 26 Negative: 1 Explanation of Negative: BUNKER, JR., M.: The proposal should have been accepted, or as a minimum, should have referenced the NEC for better user friendliness. 90A-40 Log #34 Final Action: Accept in Principle ( and (new)) Recommendation: New text to read as follows: Materials within a ceiling cavity plenum exposed to the airflow shall be noncombustible or comply with one of the following Plastic plumbing piping and tubing within a raised floor plenum shall exhibit a maximum peak optical density of 0.5 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.5 m (5 ft) or less when tested in accordance with ANSI/UL 1887, Standard for Safety Fire Test of Plastic Sprinkler Pipe for Visible Flame and Smoke Characteristics. Renumber through to become through Substantiation: Pipes are installed in ceiling cavity plenums and raised floor plenums today and they comply with the letter of the standard but not with the spirit. They are installed after being tested by means of ASTM E 84, but ASTM E 84 does not have a procedure for testing pipes. Consequently the test is being conducted by placing a single pipe in the tunnel, with the ends sealed and full of water. That does not ensure safe materials in plenums. During installation and/or maintenance or when repairs are being done, or in the event of an incipient fire, any water potentially present in the pipes would drain out and a highly combustible material would cause flame spread in the plenum. UL 1887 requires testing of pipes without water. The requirements recommended for plastic pipes is the same as that required for sprinkler pipes. The scope of UL 1887 is limited to sprinkler pipes but it can easily be expanded since the geometry of pipes and of sprinkler pipes is clearly similar. in Principle New text to read as follows: Materials within a ceiling cavity plenum exposed to the airflow shall be noncombustible or comply with one of the following Plastic plumbing piping and tubing within a ceiling cavity plenum shall exhibit a maximum peak optical density of 0.5 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.5 m (5 ft) or less when tested in accordance with ANSI/UL 1887, Standard for Safety Fire Test of Plastic Sprinkler Pipe for Visible Flame and Smoke Characteristics. Renumber through to become through Committee Statement: Correct location to be ceiling cavity plenums rather that raised floor cavity plenums which is the subject of 90A-54 (Log #35). Ballot Results: Affirmative: 25 Negative: 2 Explanation of Negative: BEITEL, J.: The proposed use of UL1887 is out of scope of the standard. It is not appropriate to use a test standard outside of its stated scope. If UL revises the standard to include all plastic piping, then 90A can reference it...not before.

24 LOYD, R.: I agree with J. Beitel s negative comments, UL 1887 is an inappropriate Standard for all Plastic Piping which is now required to be tested to ASTM E84 and should remain the reference test Standard since there is not a limit on the amount of piping permitted in the space. Comment on Affirmative: HIRSCHLER, M.: Mr Koffel is correct that the peak optical density limit should read 0.50 and not 0.5. KOFFEL, W.: The phrase and tubing should be deleted due to the potential conflict or confusion that could occur with current paragraph Also the proposed value for maximum peak optical density should be A-41 Log #21 Final Action: Accept ( and ) Recommendation: New text to read as follows: Materials within a ceiling cavity plenum exposed to the airflow shall be noncombustible or comply with through , as applicable one of the following Materials within a raised floor plenum exposed to the airflow shall be noncombustible or comply with through , as applicable. Substantiation: This code proposal just tries to get consistent language between the two sections providing charging language for plenum content materials. No requirements are being changed. 90A-42 Log #38 Final Action: Accept ( and ) Recommendation: New text to read as follows: Materials within a raised floor plenum exposed to the airflow shall be noncombustible or comply with through , as applicable * Electrical wires and cables and optical fiber cables shall be listed as having a maximum peak optical density of 0.50 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.5 m (5 ft) or less when tested in accordance with NFPA 262, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces, or shall be installed in metal raceways, metal sheathed cable, or totally enclosed nonventilated busway Pneumatic tubing for control systems shall be listed as having a maximum peak optical density of 0.5 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.5 m (5 ft) or less when tested in accordance with ANSI/UL 1820, Standard for Safety Fire Test of Pneumatic Tubing for Flame and Smoke Characteristics Nonmetallic fire sprinkler piping shall be listed as having a maximum peak optical density of 0.5 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.5 m (5 ft) or less when tested in accordance with ANSI/UL 1887, Standard for Safety Fire Test of Plastic Sprinkler Pipe for Visible Flame and Smoke Characteristics Optical fiber and communication raceways shall be listed as having a maximum peak optical density of 0.5 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.5 m (5 ft) or less when tested in accordance with ANSI/UL 2024, Standard for Safety Optical-Fiber and Communication Cable Raceway. Cables installed within these raceways shall be listed as plenum cable in accordance with the requirements in Raised floors, intermachine cables, electrical wires, listed plenum communication and optical-fiber raceways, and optical-fiber cables in computer/data processing rooms where these rooms are designed and installed in accordance with NFPA 75, Standard for the Protection of Information Technology Equipment, shall be permitted Loudspeakers, recessed lighting fixtures, and other electrical equipment with combustible enclosures, including their assemblies and accessories, cable ties, and other discrete products, shall be permitted in the raised floor plenum where listed as having a maximum peak optical density of 0.5 or less, an average optical density of 0.15 or less, and a peak heat release rate of 100 kw or less when tested in accordance with UL 2043, Standard for Safety Fire Test for Heat and Visible Smoke Release for Discrete Products and Their Accessories Installed in Air-Handling Spaces Air ducts complying with and air connectors complying with shall be permitted Materials that, in the form in which they are used, have a potential heat value not exceeding 3500 Btu/lb (8141 kj/kg), where tested in accordance with NFPA 259, Standard Test Method for Potential Heat of Building Materials, and include either of the following: 90A-12 (1) Materials having a structural base of noncombustible material, with a surfacing not exceeding a thickness of in. (3.2 mm) that has a flame spread index not greater than 50 (2) Materials, in the form and thickness used, having neither a flame spread index greater than 25 nor evidence of continued progressive combustion, and of such composition that surfaces that would be exposed by cutting through the material on any plane would have neither a flame spread index greater than 25 nor evidence of continued progressive combustion, when tested in accordance with ASTM E 84, Standard Test Method of Surface Burning Characteristics of Building Materials, or ANSI/UL 723, Standard Test Method for Surface Burning Characteristics of Building Materials Smoke detectors shall not be required to meet the requirements of Supplementary materials for air distribution systems shall be permitted when complying with The accessible portion of abandoned materials exposed to airflow shall be removed. Substantiation: Supplementary materials and smoke detectors should be included in the list of items covered by , just like they are in the section dealing with ceiling cavity plenums. This code proposal just tries to get consistent language between the two sections providing charging language for plenum content materials. No requirements are being changed. Comment on Affirmative: HIRSCHLER, M.: Mr Koffel is correct. This is existing text that should not have been modified. Moreover, section should read as follows, with the replaced section number struck out: Materials within a raised floor plenum exposed to the airflow shall be noncombustible or comply with through , as applicable. KOFFEL, W.: The value for maximum peak optical density in , , , and should have been changed to 0.50 to correlate with A-43 Log #6 Final Action: Accept ( ) Submitter: Stanley Kaufman, CableSafe Inc. / Rep. The Society of the Plastics Industry Recommendation: Revise as shown: * Electrical wires and cables and optical fiber cables shall be listed as having a maximum peak optical density of 0.50 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.5 m (5 ft) or less when tested in accordance with NFPA 262, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces, or shall be installed in metal raceways without an overall nonmetallic covering, metal sheathed cable without an overall nonmetallic covering, or totally enclosed non-ventilated metallic busway without an overall nonmetallic covering,. Substantiation: Metal raceways can have a combustible nonmetallic jacket and therefore would not be suitable for an application exposed to the airflow. Likewise for metal sheathed cables. 90A-44 Log #14 Final Action: Reject ( ) Submitter: William C. Wagner, Certification Solutions * Electrical wires and cables and optical fiber cables shall be listed as having a maximum peak optical density of 0.50 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.5 m (5 ft) or less when tested in accordance with NFPA 262, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces, or shall be installed in metal raceways, metal sheathed cable, or totally enclosed non-ventilated busway or Reinforced Thermosetting Resin Conduit (RTRC) listed as having a maximum peak optical density of 0.50 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.5 m (5 ft) or less when tested in accordance with NFPA 262, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces. Substantiation: Paragraph of currently permits electrical wires and cables and optical fiber cables to be installed in metal raceways, metal sheathed cable or totally enclosed, non-ventilated busway. As an alternative to this, the wires and cables are not required to be installed using one of these methods if they themselves comply with the required optical smoke density and flame propagation requirements specified in

25 when evaluated in accordance with the Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces, NFPA 262. However, the use of any type of nonmetallic raceway is not currently permitted. Recent developments in the formulation of materials which can be utilized in the production of Reinforced Thermosetting Resin Conduit (RTRC) warrant an expansion of the permitted installation methods. Resins for RTRC that comply with the identical flame propagation and smoke optical density requirements currently delineated in for wires and cables, while still complying with all listing requirements for RTRC, will permit the use of this alternative wire and cable installation method without any increase in flame and smoke hazards. Therefore, RTRC meeting all of these requirements should be permitted as an acceptable alternative to metal raceways for the installation of electrical wires and cables and optical fiber cables. Compliance with the flame propagation and optical smoke density requirements of NFPA 262, as well as ASTM E 84, has been confirmed through independent testing at Underwriters Laboratories. The inclusion of this type of conduit in is a necessary first step toward their eventual listing for this application. Committee Statement: See committee action and statement on Proposal 90A- 34 (Log #13). 90A-45 Log #10 Final Action: Reject ( ) Submitter: Reinhard Hanselka, aidi, Inc. Recommendation: Revise text and New text to read as follows: Non Metallic fire sprinkler and other non metallic water containing piping shall be listed as having a maximum peak optical density of 0.5 or less, an average optical density of 0.15 or less and a maximum flame spread distance of 1.5 m (5.0 ft) or less when tested in accordance with ANSI/ UL 1887, Standard for Safety Fire Test of Plastic Sprinkler Pipe for Visible Flame and Smoke Characteristics. Substantiation: This change is needed to accommodate laboratories, factories and other occupancies that utilize High Purity Piping Materials for the transport of Pressurized Pure Water. The standard of care should be equal or greater than Fire Sprinkler Pipe. To subject this type of piping to the same standard as dry pipe is technically incorrect and poses an unrealistic hardship on users. Committee Statement: See committee action on Proposal 90A-40 (Log #34). The existing requirements evaluate the material itself, not on it s use. Comment on Affirmative: HIRSCHLER, M.: It might be of interest for the committee to consider whether different requirements should apply to piping that does not carry water. 90A-46 Log #22 Final Action: Accept in Principle ( ) Optical fiber and communication raceways Raceways shall be listed as having a maximum peak optical density of 0.5 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.5 m (5 ft) or less when tested in accordance with ANSI/UL 2024, Standard for Safety Optical-Fiber and Communications Cable Raceway. Substantiation: UL 2024 is used for testing and listing all types of raceways, including optical fiber raceways, communications raceways, signaling raceways, fire alarm raceways. CATV raceways when they are to be used in plenums. The critical issue is that the raceway has been tested and listed to UL 2024 and it is important to eliminate potential language problems. The change in nomenclature does not change the requirements. in Principle Revise text to read as follows: Optical fiber and communication raceways Optical fiber, communications, signaling and coaxial cable raceways shall be listed as having a maximum peak optical density of 0.5 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.5 m (5 ft) or less when tested in accordance with ANSI/UL 2024, Standard for Safety Optical-Fiber and Communications Cable Raceway. Committee Statement: The change reflects the correct scope of test standard. Comment on Affirmative: HIRSCHLER, M.: Mr. Koffel is correct. This is existing text that should not have been modified. KOFFEL, W.: The value for the maximum peak optical density should have been changed to A-47 Log #45 Final Action: Accept ( ) Submitter: Bob Eugene, Underwriters Laboratories Inc * Loudspeakers, recessed lighting fixtures, and other electrical equipment with combustible enclosures, including their assemblies and accessories, cable ties, and other discrete products shall be permitted in the ceiling cavity plenum where listed as having a maximum peak optical density of 0.5 or less, an average optical density of 0.15 or less, and a peak heat release rate of 100 kw or less when tested in accordance with ANSI/UL 2043, Standard for Safety Fire Test for Heat and Visible Smoke Release for Discrete Products and Their Accessories Installed in Air-Handling Spaces.. Substantiation: Add ANSI approval designation to UL A-48 Log #3 Final Action: Reject ( (New) ) Submitter: Terry Peters, The Society of the Plastics Industry Recommendation: New and Revised text to read as follows: Renumber to , to , to and to and insert a new : (new) Cable routing assemblies shall be listed as having a maximum peak optical density of 0.50 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.5 m (5 ft) or less when tested in accordance with UL 2024a, Data Communications Cable and Wire Routing Assemblies. Substantiation: Cable routing assemblies are used for supporting and protecting large quantities of optical fiber, data and communications cables in telecommunications and information technology applications. NFPA , Standard for the Fire Protection of Telecommunications Facilities, has applications for cable routing assemblies in raised floor and ceiling cavity plenums in section Proposals for the use of cable routing assemblies are currently being processed for multiple articles in the National Electrical Code. I submitted the proposals for the NEC and did not include plenum applications because cable routing assemblies are not currently recognized in. The purpose of this proposal is to provide for the listing of plenum grade cable routing assemblies in. If accepts our proposals for cable routing assemblies, we will propose plenum grade routing assemblies for the next edition of the NEC. For further information on cable routing assemblies see Committee Statement: The committee concludes that this is already covered and it does not want to create a laundry list where items are already covered. Ballot Results: Affirmative: 24 Negative: 3 Explanation of Negative: HARRINGTON, J.: Specific requirements for cable routing assemblies need to be addressed in, and these assemblies are not currently recognized. KAHN, S.: The proposal should have been accepted. These assemblies are currently in use and their construction should comply with similar requirements for those specified for raceways and/or cables installed within air ducts. KOFFEL, W.: The proposal does not create a laundry list ; but rather adds a new paragraph for cable routing assemblies that do not appear to be covered elsewhere in. Although the Committee has indicated that cable routing assemblies are already covered they have failed to identify where. In fact, it should be noted that UL 2024 is a reference standard in, but UL 2024a is not. 90A-49 Log #11 Final Action: Reject ( ) Submitter: Reinhard Hanselka, aidi, Inc. Recommendation: New text to read as follows: Non Metallic Process and High Purity Water Piping shall be listed as having a maximum peak optical density of 0.5 or less, an average optical density of 0.15 or less and a maximum flame spread distance of 1.5 m (5.0 ft) or less when tested in accordance with ANSI/UL 1887, Standard for Safety Fire Test of Plastic Sprinkler Pipe for Visible Flame and Smoke Characteristics. 90A-13

26 Substantiation: This change is needed to accommodate laboratories, factories and other occupancies that utilize High Purity Piping Materials for the transport of Pressurized Pure Water. The standard of care should be equal or greater than Fire Sprinkler Pipe. To subject this type of piping to the same standard as dry pipe is technically incorrect and poses an unrealistic hardship on users. Committee Statement: See committee action on Proposal 90A-40 (Log #34). The existing requirements evaluate the material itself, not on it s use. Comment on Affirmative: HIRSCHLER, M.: See my affirmative comment on 90A A-50 Log #23 Final Action: Accept in Principle ( ) Electrical wires and cables or optical fiber cables, or optical fiber and communications raceways shall comply with Substantiation: UL 2024 is used for testing and listing all types of raceways, including optical fiber raceways, communications raceways, signaling raceways, fire alarm raceways. CATV raceways when they are to be used in plenums. The critical issue is that the raceway has been tested and listed to UL 2024 and it is important to eliminate potential language problems. The change in nomenclature does not change the requirements. in Principle Revise text to read as follows: Electrical wires and cables or optical fiber cables, or optical fiber and communications raceways shall comply with Committee Statement: The committee removed the comma and the word or and raceways to be consistent with Proposal 90A-28 (Log #18). 90A-51 Log #52 Final Action: Reject ( ) Submitter: David Handwork, Arkansas State University Facilities Management / Rep. APPA.ORG - Association of Education Facilities Executives For apparatus plenums less than 2000 cfm, Eelectrical wires and cables or optical fiber cables, or optical fiber and communications raceways shall comply with 4.3.4, otherwise shall comply with and Materials used in the construction of an apparatus plenum shall be noncombustible or shall be limited combustible having a maximum smoke developed index of 50 and shall be suitable for continuous exposure to the temperature and humidity conditions of the environmental air in the plenum Electrical wires and cables and optical fiber cables shall be listed as having a maximum peak optical density of 0.50 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.5 m (5 ft) or less when tested in accordance with NFPA 262, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces, or shall be installed in metal raceways, metal sheathed cable, or totally enclosed nonventilated busway. Substantiation: The current restriction of 1.22 m (4 ft) cannot be adhered for apparatus plenums on medium to large air handlers (approximately greater than 2000 cfm), specifically for low voltage HVAC control devices. For very large apparatus plenums (greater than 15,000 cfm), the conductor lengths may approach ft. These lengths of conductors are routinely required for control and power wiring of control devices (internal damper actuators, sensors, fan motors) due to the distance from the device to the exterior of the plenum. Freeze protection thermostats by the current definition also cannot meet this standard since these devices are at least 12 feet in length. Therefore, it is proposed the same standards listed for the air handler unit room plenums ( and ) be replicated for apparatus plenums with air flows capacity greater than 2000 cfm. Committee Statement: The requirements should be consistent with those in ducts. 90A-52 Log #24 Final Action: Accept in Part ( ) 90A Accessible abandoned material shall be deemed to be storage and shall be removed not be permitted to remain. Where cables are identified for future use with a tag, the tag shall be of sufficient durability to withstand the environment involved. Substantiation: This requirement is based on the equivalent requirement in the NEC, which has revised the language to make the requirement more explicit: abandoned materials must be removed. If cables are present intended for future use they need to be appropriately identified for future use with a tag. The main reason for requiring removal of abandoned materials is for safety of personnel in terms of the potential for abandoned material to fall and/or entangle workers, electrical personnel and firefighters. Note that section states as follows: The accessible portion of abandoned materials exposed to airflow shall be removed. in Part Revise text to read as follows: Accessible abandoned material shall be deemed to be storage and shall be removed not be permitted to remain. Committee Statement: See committee action and statement on Proposal 90A- 17 (Log #20). Ballot Results: Affirmative: 26 Negative: 1 Explanation of Negative: BUNKER, JR., M.: The proposal should have been accepted, or as a minimum, should have referenced the NEC for better user friendliness. 90A-53 Log #15 Final Action: Reject ( ) Submitter: William C. Wagner, Certification Solutions * Electrical wires and cables and optical fiber cables shall be listed as having a maximum peak optical density of 0.50 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.5 m (5 ft) or less when tested in accordance with NFPA 262, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces, or shall be installed in metal raceways, metal sheathed cable, or totally enclosed nonventilated busway or Reinforced Thermosetting Resin Conduit (RTRC) listed as having a maximum peak optical density of 0.50 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.5 m (5 ft) or less when tested in accordance with NFPA 262, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces. Substantiation: Paragraph of currently permits electrical wires and cables and optical fiber cables to be installed in metal raceways, metal sheathed cable or totally enclosed, nonventilated busway. As an alternative to this, the wires and cables are not required to be installed using one of these methods if they themselves comply with the required optical smoke density and flame propagation requirements specified in when evaluated in accordance with the Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces, NFPA 262. However, the use of any type of nonmetallic raceway is not currently permitted. Recent developments in the formulation of materials which can be utilized in the production of Reinforced Thermosetting Resin Conduit (RTRC) warrant an expansion of the permitted installation methods. Resins for RTRC that comply with the identical flame propagation and smoke optical density requirements currently delineated in for wires and cables, while still complying with all listing requirements for RTRC, will permit the use of this alternative wire and cable installation method without any increase in flame and smoke hazards. Therefore, RTRC meeting all of these requirements should be permitted as an acceptable alternative to metal raceways for the installation of electrical wires and cables and optical fiber cables. Compliance with the flame propagation and optical smoke density requirements of NFPA 262, as well as ASTM E 84, has been confirmed through independent testing at Underwriters Laboratories. The inclusion of this type of conduit in is a necessary first step toward their eventual listing for this application. Committee Statement: See committee action and statement on Proposal 90A- 34 (Log #13). 90A-54 Log #35 Final Action: Accept ( and (new)) Recommendation: New text to read as follows: Materials within a raised floor plenum exposed to the airflow shall comply with through , as applicable Plastic plumbing piping and tubing within a raised floor plenum

27 shall exhibit a maximum peak optical density of 0.5 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.5 m (5 ft) or less when tested in accordance with ANSI/UL 1887, Standard for Safety Fire Test of Plastic Sprinkler Pipe for Visible Flame and Smoke Characteristics. Renumber and to become and Substantiation: Pipes are installed in ceiling cavity plenums and raised floor plenums today and they comply with the letter of the standard but not with the spirit. They are installed after being tested by means of ASTM E 84, but ASTM E 84 does not have a procedure for testing pipes. Consequently the test is being conducted by placing a single pipe in the tunnel, with the ends sealed and full of water. That does not ensure safe materials in plenums. During installation and/or maintenance or when repairs are being done, or in the event of an incipient fire, any water potentially present in the pipes would drain out and a highly combustible material would cause flame spread in the plenum. UL 1887 requires testing of pipes without water. The requirements recommended for plastic pipes is the same as that required for sprinkler pipes. The scope of UL 1887 is limited to sprinkler pipes but it can easily be expanded since the geometry of pipes and of sprinkler pipes is clearly similar. Ballot Results: Affirmative: 25 Negative: 2 Explanation of Negative: BEITEL, J.: The proposed use of UL1887 is out of scope of the standard. It is not appropriate to use a test standard outside of its stated scope. If UL revises the standard to include all plastic piping, then 90A can reference it...not before. LOYD, R.: I agree with J. Beitel s negative comments, UL 1887 is an inappropriate Standard for all Plastic Piping which is now required to be tested to ASTM E84 and should remain the reference test Standard since there is not a limit on the amount of piping permitted in the space. Comment on Affirmative: HIRSCHLER, M.: Mr Koffel is correct that the peak optical density limit should read 0.50 and not 0.5. KOFFEL, W.: The phrase and tubing should be deleted due to the potential conflict or confusion that could occur with current paragraph Also the proposed value for the maximum peak optical density should be A-55 Log #16 Final Action: Reject ( ) Submitter: William C. Wagner, Certification Solutions * Electrical wires and cables and optical fiber cables shall be listed as having a maximum peak optical density of 0.50 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.5 m (5 ft) or less when tested in accordance with NFPA 262, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces, or shall be installed in metal raceways, metal sheathed cable, or totally enclosed nonventilated busway or Reinforced Thermosetting Resin Conduit (RTRC) listed as having a maximum peak optical density of 0.50 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.5 m (5 ft) or less when tested in accordance with NFPA 262, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces. Substantiation: Paragraph of currently permits electrical wires and cables and optical fiber cables to be installed in metal raceways, metal sheathed cable or totally enclosed, nonventilated busway. As an alternative to this, the wires and cables are not required to be installed using one of these methods if they themselves comply with the required optical smoke density and flame propagation requirements specified in when evaluated in accordance with the Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces, NFPA 262. However, the use of any type of nonmetallic raceway is not currently permitted. Recent developments in the formulation of materials which can be utilized in the production of Reinforced Thermosetting Resin Conduit (RTRC) warrant an expansion of the permitted installation methods. Resins for RTRC that comply with the identical flame propagation and smoke optical density requirements currently delineated in for wires and cables, while still complying with all listing requirements for RTRC, will permit the use of this alternative wire and cable installation method without any increase in flame and smoke hazards. Therefore, RTRC meeting all of these requirements should be permitted as an acceptable alternative to metal raceways for the installation of electrical wires and cables and optical fiber cables. Compliance with the flame propagation and optical smoke density requirements of NFPA 262, as well as ASTM E 84, has been confirmed through independent testing at Underwriters Laboratories. The inclusion of this type of conduit in is a necessary first step toward their eventual listing for this application. Committee Statement: See committee action and statement on Proposal 90A- 34 (Log #13). 90A-56 Log #4 Final Action: Reject ( (New) ) Submitter: Terry Peters, The Society of the Plastics Industry Recommendation: New and Revised text to read as follows: Renumber to , to , to , to , to , to and insert a new : (new) Cable routing assemblies shall be listed as having a maximum peak optical density of 0.50 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.5 m (5 ft) or less when tested in accordance with UL 2024a, Data Communications Cable and Wire Routing Assemblies. Substantiation: Cable routing assemblies are used for supporting and protecting large quantities of optical fiber, data and communications cables in telecommunications and information technology applications. NFPA , Standard for the Fire Protection of Telecommunications Facilities, has applications for cable routing assemblies in raised floor and ceiling cavity plenums in section Proposals for the use of cable routing assemblies are currently being processed for multiple articles in the National Electrical Code. I submitted the proposals for the NEC and did not include plenum applications because cable routing assemblies are not currently recognized in. The purpose of this proposal is to provide for the listing of plenum grade cable routing assemblies in. If accepts our proposals for cable routing assemblies, we will propose plenum grade routing assemblies for the next edition of the NEC. For further information on cable routing assemblies see Committee Statement: See committee action and statement on Proposal 90A- 48 (Log #3). Ballot Results: Affirmative: 24 Negative: 3 Explanation of Negative: HARRINGTON, J.: Specific requirements for cable routing assemblies need to be addressed in, and these assemblies are not currently recognized. KAHN, S.: The proposal should have been accepted. These assemblies are currently in use and their construction should comply with similar requirements for those specified for raceways and/or cables installed within air ducts. KOFFEL, W.: The proposal does not create a laundry list ; but rather adds a new paragraph for cable routing assemblies that do not appear to be covered elsewhere in. Although the Committee has indicated that cable routing assemblies are already covered they have failed to identify where. In fact, it should be noted that UL 2024 is a reference standard in, but UL 2024a is not. 90A-57 Log #9 Final Action: Reject ( ) Submitter: Reinhard Hanselka, aidi, Inc. Recommendation: New text to read as follows: Non Metallic fire sprinkler and other non metallic water containing piping shall be listed as having a maximum peak optical density of 0.5 or less, an average optical density of 0.15 or less and a maximum flame spread distance of 1.5 m (5.0 ft) or less when tested in accordance with ANSI/ UL 1887, Standard for Safety Fire Test of Plastic Sprinkler Pipe for Visible Flame and Smoke Characteristics. Substantiation: This change is needed to accommodate laboratories, factories and other occupancies that utilize High Purity Piping Materials for the transport of Pressurized Pure Water. The standard of care should be equal or greater than Fire Sprinkler Pipe. To subject this type of piping to the same standard as dry pipe is technically incorrect and poses an unrealistic hardship on users. Committee Statement: See committee action on Proposal 90A-54 (Log #35). The existing requirements evaluate the material itself, not on it s use. Comment on Affirmative: HIRSCHLER, M.: See my affirmative comment on 90A A-15

28 90A-58 Log #5 Final Action: Reject ( ) Submitter: Stanley Kaufman, CableSafe Inc. / Rep. The Society of the Plastics Industry Recommendation: Revise as shown: Optical fiber and communication raceways shall be listed as having a maximum peak optical density of 0.5 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.5 m (5 ft) or less when tested in accordance with ANSI/UL 2024, Standard for Safety Optical-Fiber and Communication Cable Raceway. Cables installed within these raceways shall be listed as plenum cable in accordance with the requirements in Substantiation: Cables installed within a raceway are outside the scope on. See Annex notes A and A The text recommended for deletion duplicates a requirement in the National Electrical Code. A Electrical wires and cables and optical fiber cables installed in metal raceways or metal sheathed cable are not considered to be exposed to the airflow, and need not meet the requirements of Electrical wires and cables and optical fiber cables listed to UL Subject 2424, Outline of Investigation for Cable Marked Limited Combustible, are considered to be suitable for use wherever cables tested in accordance with NFPA 262, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces, are required. A Electrical wires and cables and optical fiber cables installed in metal raceways, metal sheathed cable, or totally enclosed nonventilated busway are not considered to be exposed to the airflow, and need not meet the requirements of Electrical wires and cables and optical fiber cables listed to UL Subject 2424, Outline of Investigation for Cable Marked Limited Combustible, are considered to be suitable for use wherever cables tested in accordance with NFPA 262, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces, are required. Committee Statement: The committee concludes that this requirement should be retained. 90A-59 Log #25 Final Action: Accept in Principle ( ) Optical fiber and communication raceways Raceways shall be listed as having a maximum peak optical density of 0.5 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.5 m (5 ft) or less when tested in accordance with ANSI/UL 2024, Standard for Safety Optical-Fiber and Communication Cable Raceway. Cables installed within these raceways shall be listed as plenum cable in accordance with the requirements in Substantiation: UL 2024 is used for testing and listing all types of raceways, including optical fiber raceways, communications raceways, signaling raceways, fire alarm raceways. CATV raceways when they are to be used in plenums. The critical issue is that the raceway has been tested and listed to UL 2024 and it is important to eliminate potential language problems. The change in nomenclature does not change the requirements. in Principle Revise text to read as follows: Optical fiber and communication raceways Optical fiber, communications, signaling and coaxial cable raceways shall be listed as having a maximum peak optical density of 0.5 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.5 m (5 ft) or less when tested in accordance with ANSI/UL 2024, Standard for Safety Optical-Fiber and Communications Cable Raceway. Committee Statement: See committee action and statement on Proposal 90A- 46 (Log #22). Comment on Affirmative: HIRSCHLER, M.: Mr Koffel is correct. This is existing text that should not have been modified. KOFFEL, W.: The value for the maximum peak optical density should have been changed to A-60 Log #26 Final Action: Accept in Principle ( ) 90A Raised floors, intermachine cables, electrical wires, listed plenum raceways, and optical-fiber cables in computer/data processing rooms where these rooms are designed and installed in accordance with NFPA 75, Standard for the Protection of Information Technology Equipment, shall be permitted. Substantiation: UL 2024 is used for testing and listing all types of raceways, including optical fiber raceways, communications raceways, signaling raceways, fire alarm raceways. CATV raceways when they are to be used in plenums. The critical issue is that the raceway has been tested and listed to UL 2024 and it is important to eliminate potential language problems. The change in nomenclature does not change the requirements. in Principle Revise text to read as follows: Raised floors, intermachine cables, electrical wires, listed plenum communication and optical-fiber optical fiber, communications, signaling and coaxial cable raceways, and optical-fiber cables in computer/data processing rooms where these rooms are designed and installed in accordance with NFPA 75, Standard for the Protection of Information Technology Equipment, shall be permitted. Committee Statement: See committee action and statement on Proposal 90A- 46 (Log #22). 90A-61 Log #46 Final Action: Accept ( ) Submitter: Bob Eugene, Underwriters Laboratories Inc Loudspeakers, recessed lighting fixtures, and other electrical equipment with combustible enclosures, including their assemblies and accessories, cable ties, and other discrete products, shall be permitted in the raised floor plenum where listed as having a maximum peak optical density of 0.5 or less, an average optical density of 0.15 or less, and a peak heat release rate of 100 kw or less when tested in accordance with ANSI/UL 2043, Standard for Safety Fire Test for Heat and Visible Smoke Release for Discrete Products and Their Accessories Installed in Air-Handling Spaces. Substantiation: Add ANSI approval designation to UL Comment on Affirmative: HIRSCHLER, M.: Mr Koffel is correct. This is existing text that should not have been modified. KOFFEL, W.: The value for the maximum peak optical density should have been changed to A-62 Log #12 Final Action: Reject ( ) Submitter: Reinhard Hanselka, aidi, Inc. Recommendation: New text to read as follows: Non Metallic Process and High Purity Water Piping shall be listed as having a maximum peak optical density of 0.5 or less, an average optical density of 0.15 or less and a maximum flame spread distance of 1.5 m (5.0 ft) or less when tested in accordance with ANSI/UL 1887, Standard for Safety Fire Test of Plastic Sprinkler Pipe for Visible Flame and Smoke Characteristics. Substantiation: This change is needed to accommodate laboratories, factories and other occupancies that utilize High Purity Piping Materials for the transport of Pressurized Pure Water. The standard of care should be equal or greater than Fire Sprinkler Pipe. To subject this type of piping to the same standard as dry pipe is technically incorrect and poses an unrealistic hardship on users. Committee Statement: See committee action on Proposal 90A-54 (Log #35). The existing requirements evaluate the material itself, not on it s use. Comment on Affirmative: HIRSCHLER, M.: See my affirmative comment on 90A A-63 Log #27 Final Action: Reject ( ) The accessible portion of abandoned materials exposed to airflow shall be removed. Where cables are identified for future use with a tag, the tag shall be of sufficient durability to withstand the environment involved.

29 Substantiation: This requirement is based on the equivalent requirement in the NEC, which has revised the language to make the requirement more explicit: abandoned materials must be removed. If cables are present intended for future use they need to be appropriately identified for future use with a tag. The main reason for requiring removal of abandoned materials is for safety of personnel in terms of the potential for abandoned material to fall and/or entangle workers, electrical personnel and firefighters. This change is made for consistency with the NEC and with proposals on other sections of. Committee Statement: See committee action and statement on Proposal 90A- 52 (Log #24). rejected. The purpose of this proposal is to keep from establishing occupancy-specific requirements, and leave those requirements to the Life Safety and Building Codes. In order to facilitate this, the TC could draft such proposals to the respective occupancy chapters to ensure the intent of is maintained. Committee Statement: The reference to unspecified other codes does not comply with the Manual of Style. Ballot Results: Affirmative: 26 Negative: 1 90A-66 Log #CP17 Final Action: Accept Explanation of Negative: BUNKER, JR., M.: The proposal should have been accepted, or as a minimum, should have referenced the NEC for better user friendliness. ( , (New), A (New)) Submitter: Technical Committee on Air Conditioning, Egress corridors in health care nursing and long term care facilities, 90A-64 Log #28 Final Action: Accept detention and correctional, and residential occupancies shall not be used as a ( ) portion of a supply, return, or exhaust air system serving adjoining areas unless The foam plastic insulation material both (a) is separated from the plenum by an approved thermal barrier consisting of 12.7 mm (0.5 in.) gypsum wallboard or a material that is tested in accordance with and meets the acceptance criteria of both the temperature transmission fire test and the integrity fire test of NFPA 275, Standard Method of Fire Tests for the Evaluation of Thermal Barriers Used Over Foam Plastic Insulation, equivalent material that will limit the average temperature rise of the unexposed surface to not more than 139 C (250 F) after 15 minutes of fire exposure, complying with the standard time-temperature curve of NFPA 251, Standard Methods of Tests of Fire Resistance of Building Construction and Materials, and (b) exhibits a flame spread index of 75 or less and a smoke developed index of 450 or less when tested in accordance with ASTM E 84, Standard Test Method for Surface Burning Characteristics of Building Materials, or ANSI/UL 723, Standard Test Method for Surface Burning Characteristics of Building Materials, at the maximum thickness intended for use. Also add NFPA 275, Standard Method of Fire Tests for the Evaluation of Thermal Barriers Used Over Foam Plastic Insulation, into Chapter 2 on referenced standards Substantiation: The NFPA technical committee on Fire Tests has developed NFPA 275 in order to avoid the vague language about thermal barriers. NFPA 275 was specifically developed to clarify the two tests for thermal barrier materials to be used over foam plastic insulation. otherwise permitted by through Add new text to read as follows: Air movement between rooms and egress corridors in hospitals and ambulatory care facilities shall be permitted where the transfer of air is required for clinical purposes by other standards. Revise text to read as follows: A See ANSI/ASHRAE/ASHE Standard 170, Ventilation of Health Care Facilities, 2008 edition with approved addendum. Renumber the existing paragraphs. Substantiation: This resolves the concerns of the submitter of Proposal 90A- 82 (Log #1) using text that complies with the Manual of Style. Ballot Results: Affirmative: 26 Negative: 1 Explanation of Negative: KOFFEL, W.: While it is understood what the Committee is trying to do for some occupancies, the proposed language is flawed. First, it is not clear why health care has been revised to nursing and long term care. It is recognized that proposed addresses hospitals and ambulatory care facilities but the existing restriction is lost with the proposed new language. Secondly, to say the arrangement is not permitted within the facility is different than saying it is not permitted within the occupancy. Most health care facilities consist of a variety of occupancies. Is it the intent of the Committee to restrict the HVAC system throughout the facility or only in the health care portions of the facility? The temperature transmission fire test in NFPA 275 uses the ASTM E 119 (or 90A-67 Log #54 Final Action: Reject NFPA 251) time-temperature fire curve to expose the thermal barrier specimen and it requires the following: During the 15-minute test period, the average measured temperature rise above the average temperature at the start of the fire test for the thermocouples described in Section 4.3 shall not exceed 250 F (139 C), and the measured temperature rise of any such single thermocouple shall not exceed 325 F (181 C). Therefore, the temperature transmission fire test in NFPA 275 corresponds to what the code requires now. The integrity fire test in NFPA 275 requires that the thermal barrier material, together with the foam plastic insulation, be tested to NFPA 286 (which is a 15 minute test) and that the pass/fail criteria are identical to those used for NFPA 286 elsewhere in other codes and standards, including and NFPA 101. NFPA 275 also allows the integrity fire test to be conducted in accordance with UL 1040, UL 1715 and FM 4880, with the pass/fail criteria for those tests. ( , , and A ) Submitter: Joshua Elvove, U.S. General Services Administration Recommendation: New text to read as follows: Add new , and A as follows: Air-Handling Equipment Rooms That Have Air Ducts That Open Directly into a Shaft Air-handling equipment rooms, including the protection of openings, shall be separated from shafts by construction having a fire resistance rating not less than that required for the shaft by Fire-resistant separation shall not be required for air handling equipment rooms that are enclosed by construction having a fire resistance rating not less than that required for the shaft Combustible storage is not permitted unless the room is separated from adjacent spaces by construction having a fire resistance rating of not less than one hour * Rooms containing storage that is specifically required for air handling equipment located in the room are not required to have a fire resistance rating of one hour. 90A-65 Log #62 Final Action: Reject A Air filters is an example of permissible storage. ( ) Substantiation: To prevent air handling rooms located adjacent to shafts from Submitter: Joshua Elvove, U.S. General Services Administration Recommendation: Revise as follows: Where another code prohibits Eegress corridors in health care, detention and correctional, and residential occupancies shall not be used as a portion of a supply, return, or exhaust air system serving adjoining areas, the requirements of unless otherwise permitted by through shall apply. Substantiation: should not be specifying occupancy requirements even if they provide better safeguards as this should fall under the Building or Life Safety Code. NFPA 101 already prohibits transfer grills, louvers, transoms, etc. from being installed in corridors and doors of health care occupancies, lodging and rooming houses, hotel and dormitories, apartments and residential board and care occupancies. Note: it is not my intent to weaken existing requirements and permit egress corridors to be used as a portion of a supply, return or exhaust air system in these occupancies. If this proposal inadvertently does this, then it should be being used for general purpose storage. Though this could be considered a fire code issue, by placing this provision in this standard, it better ensures that air handling rooms located adjacent to shafts won t be used for such purposes and additionally potentially protects the integrity of the air handling equipment within the room from a fire that originates from general purpose storage. Note: building codes don t generally require air handling rooms to be separated from adjacent spaces by fire rated construction; as such, a fire in these rooms (which becomes more likely if combustible storage is present) could spread unprotected. The annex note provides an example of the type of storage which would be permitted as operationally, it makes sense to permit the storage of replacement air filters in these rooms. Committee Statement: The committee concludes that this will introduce an unwanted combustible load where no storage is currently allowed. 90A-17

30 90A-68 Log #CP15 Final Action: Reject ( ) Submitter: Technical Committee on Air Conditioning, Fire/smoke dampers shall be installed at each direct or ducted opening into or out of enclosures required by , unless otherwise permitted by or Substantiation: This committee has approved this requirement in the last two cycles, but it has been overturned with NITMAMs. The committee concludes that it should appear in the ROP for public comment. Committee Statement: This proposal has been considered before any reject. The committee seeks additional public input at the ROC stage. Comment on Affirmative: HIRSCHLER, M.: No justification has ever been presented to incorporate this new requirement. 90A-69 Log #43 Final Action: Reject (6.1) Submitter: David Handwork, Arkansas State University Facilities Management / Rep. APPA.ORG - Association of Education Facilities Executives Recommendation: Add the following text to the front end of Chapter 6, Controls 6.1 Wiring. The installation of electrical wiring and equipment associated with the operation and control of air-conditioning and ventilating systems shall be in accordance with NFPA 70, National Electrical Code and NFPA 79, Electrical Standard for Industrial Machinery (NEW) 250V Wiring. The electrical control wiring and equipment associated with the control of air-conditioning and ventilating systems shall be installed in a compartment separate from electrical circuits operating at voltages greater than 250V (NEW) A safety sign shall be provided to warn qualified persons of potential electric arc flash hazard hazards. The marking shall be located so as to be clearly visible to qualified persons before examination, adjustment, servicing, or maintenance of the equipment. Substantiation: This proposal conveys some of the leading safety practices asserted in NFPA 79 - Electrical Standard for Industrial Machinery, into the next version. Electrical safety in field built HVAC control systems for buildings has not yet had a broad discussion compared the manufacturing process control systems. Two photographs-- herewith in Microsoft Publisher--are submitted for the committee s review. (See photos on the following page.) The need for partitioning of 480 VAC circuits, which are capable of producing substantial flash energy, from lower voltage should be self-evident. The absence of language that reduces this risk causes facility professionals in the education facilities industry--and probably in other industries--to give electrical flash hazard training to HVAC control mechanics and/or pair up HVAC control mechanics with electricians who have had electrical flash training. There is nothing inherently wrong with an HVAC control mechanics receiving such training but costs and risk are reduced when the safety-versus-economy conundrum is worked from both ends: BUILD SAFER EQUIPMENT as well as offer training. This proposal strengthens the linkage of with other documents in the NFPA safety document universe. Committee Statement: The proposed requirements are not within the scope of, but are covered in NFPA 70. NFPA 79 is not an appropriate reference for this document 90A-70 Log #63 Final Action: Reject (6.3.1 and A.6.3.1) Submitter: Joshua Elvove, U.S. General Services Administration Recommendation: New text to read as follows: Add an annex note to as follows: 6.3.1* Smoke dampers shall be controlled by an automatic alarm-initiated device. A Typically, duct smoke detectors are used to initiate the signal to control a smoke damper. Substantiation: As currently written, any automatic alarm initiating device is permitted to control smoke dampers (e.g., manual pull station, area smoke or heat detector, duct smoke detector, sprinkler system, etc.). The new annex is merely meant to inform the reader duct detectors are typically used to control smoke dampers (and might actually be the preferred method). Committee Statement: The proposed text does not add any new information or clarity. 90A-71 Log #68 Final Action: Reject (6.4.2) Submitter: Randy Willard, National Reconnaissance Office Recommendation: Add new text to read follows: Smoke detectors shall not be required for fans units or air distribution systems that serve a single open area. Substantiation: Appendix section A.6.4 identifies the intent of providing smoke detectors and related controls in an HVAC system is to prevent the distribution of smoke. Fan units or air distribution systems that only serve a single open area are by definition incapable of distributing smoke to other parts of a building. An example of such a system is a rooftop HVAC unit in a warehouse or big-box retail store. This proposal would clarify that return smoke detectors are not required in such areas. This proposal would also provide consistency with the International Mechanical Code which already has this exception. Committee Statement: This would allow the fans to keep running during a system fire bringing smoke to the occupied space creating untenable spaces. Ballot Results: Affirmative: 26 Negative: 1 Explanation of Negative: BUNKER, JR., M.: This proposal should have been accepted. I agree with the submitter s substantiation. Units that serve a single space, such as a warehouse or gymnasium, do not transport products of combustion to other parts of the building. It seems wasteful to require a smoke detector(s) to shut down a unit that simply recirculates from the affected space back to the affected space. 90A-72 Log #64 Final Action: Reject (6.4.3) Submitter: Joshua Elvove, U.S. General Services Administration Recommendation: Revise as follows: 6.4.3* Function Smoke detectors provided as required by shall automatically stop their respective fan(s) on detecting the presence of smoke Smoke detectors provided as required by shall automatically close their respective smoke damper on detecting the presence of smoke Where the return air fan is functioning as part of an engineered smokecontrol system and a different mode is required, the smoke detectors shall not be required to automatically stop their respective fans or close their respective dampers. Substantiation: Duct smoke detectors should also be required to close smoke dampers that are required by or another code, that are not part of an engineered smoke control system, to prevent the spread of smoke. Committee Statement: This is handled by design decisions and this specific text does not add or clarify the requirement. 90A-73 Log #65 Final Action: Reject ( ) Submitter: Joshua Elvove, U.S. General Services Administration Recommendation: Revise as follows: Smoke detectors powered separately from the fire alarm system for the sole function of stopping fans or closing smoke dampers shall not require standby power. Substantiation: This proposal simply extends the existing exception to include similar detectors arranged to close smoke dampers. Committee Statement: See committee action and statement on Proposal 90A- 72 (Log #64). 90A-18

31 90A-69 (Log #43) Substantiation 90A-19