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31、 viewed at no cost at www.nfpa.org/docinfo.90B-1 NFPA and National Fire Protection Association are registered trademarks of the National Fire Protection Association, Quincy, Massachusetts 02169. Copyright 2017 National Fire Protection Association . All Rights Reserved. NFPA 90B Standard for the Inst
32、allation of Warm Air Heating and Air-Conditioning Systems 2018 Edition This edition of NFPA 90B, Standard for the Installation of Warm Air Heating and Air-Conditioning Systems, was prepared by the Technical Committee on Air Conditioning. It was issued by the Standards Council on August 1, 2017, with
33、 an effective date of August 21, 2017, and supersedes all previous editions. This edition of NFPA 90B was approved as an American National Standard on August 21, 2017. Origin and Development of NFPA 90B This standard dates from 1899, when committee attention was rst given to blower and exhaust syste
34、ms. Prior to 1936, the subject of air conditioning was covered in NFPA standards on blower systems. In 1937, it was decided to prepare a separate standard on air-conditioning, warm air heating, and ventilating systems. This standard was initially adopted in 1937 with subsequent amendments in 1938, 1
35、939, 1940, 1942, 1950, 1952, 1955, 1956, 1960, 1961, 1963, 1964, 1965, 1968, 1971, 1973, 1976, 1980, 1984, and 1989. The 1993 and 1996 editions were reconrmations of the 1989 edition. The 1999 edition contained changes that were mainly editorial in nature. The 2002 edition incorporated format change
36、s to comply with the Manual of Style for NFPA Technical Committee Documents and new provisions for the removal of accessible abandoned materials in concealed spaces and plenums. The only changes to the 2006 edition were to update “ame spread rating” to “ame spread index.” The major change in the 200
37、9 edition was to replace the references to NFPA 255 with ANSI/UL 723 and ASTM E84, because NFPA 255 was withdrawn. All three test standards were quite similar. The changes in the 2012 edition were edition updates of the referenced standards. For the 2015 edition, the changes were primarily editorial
38、 alterations, reference updates, and clarications of existing language. Also, a section and test method for air dispersion systems was added. For the 2018 edition, the changes are primarily editorial alterations, reference updates, and clarications of existing language. Also, a new requirement for d
39、uct sealants has been added.INSTALLATION OF WARM AIR HEATING AND AIR-CONDITIONING SYSTEMS 90B-2 2018 Edition Technical Committee on Air Conditioning Ralph D. Gerdes, Chair Ralph Gerdes Consultants, LLC, IN SE Ramzi A. Amawi, Intertek Testing Services, OH RT Joseph F. Andre, Steel Tube Institute, WA
40、M Rep. Steel Tube Institute of North America Justin B. Biller, Carilion Clinic, VA U James S. Buckley, Jacobs, TX IM Rep. American Society of Heating, Refrigeration & Air Conditioning Engineers, Inc. Laurence W. Caraway, Jr., Kitchen Klean Inc., NH IM Rep. National Air Duct Cleaners Association Mich
41、ael Earl Dillon, Dillon Consulting Engineers, Inc., CA SE James T. Dollard, Jr., IBEW Local Union 98, PA L Rep. International Brotherhood of Electrical Workers Jonathan Flannery, AHA - ASHE, AR U Thomas P. Hammerberg, Automatic Fire Alarm Association, Inc., GA M Rep. Automatic Fire Alarm Association
42、, Inc. John C. Harrington, FM Global, MA I Jonathan Hartsell, Rodgers, NC IM Marcelo M. Hirschler, GBH International, CA M Rep. American Fire Safety Council/Plenum Cable Assn. Eli P. Howard, III, Sheet Metal & Air Conditioning Contractors Natl. Assn., VA IM Anthony Hurst, Mason & Hanger, KY SE Ralph
43、 A. Koerber, ATCO Rubber Products, Inc., TX M Rep. Air Diffusion Council William E. Koffel, Koffel Associates, Inc., MD M Rep. Society of the Plastics Industry, Inc. Timothy J. Orris, AMCA International, Inc., IL M Rep. Air Movement & Control Association Ajay V. Prasad, JENSEN HUGHES, MD SE Rep. JEN
44、SEN HUGHES Michael Schmeida, Gypsum Association, OH M Dwayne E. Sloan, UL LLC, NC RT George A. Straniero, AFC Cable Systems, Inc., NJ M Rep. National Electrical Manufacturers Association Alternates Diane B. Copeland, Dillon Consulting Engineers, Inc., CA SE (Alt. to Michael Earl Dillon) Charles C. C
45、ottrell, North American Insulation Manufacturers Assn., VA M (Voting Alt.) Thomas M. Dusza, JENSEN HUGHES, CA SE (Alt. to Ajay V. Prasad) David L. Hall, Apollo America Inc., MI M (Alt. to Thomas P. Hammerberg) Amando Lyndyll Hisole, ccrd partners, TX SE (Voting Alt.) Randall K. Laymon, UL LLC, IL RT
46、 (Alt. to Dwayne E. Sloan) Michael Lloyd, Honeywell International, Inc., IL M (Alt. to George A. Straniero) Harold C. Ohde, IBEW 134/Electrical Joint Apprenticeship Training & Trust, IL L (Alt. to James T. Dollard, Jr.) Mark Terzigni, Sheet Metal & Air Conditioning Contractors Natl. Assn., VA IM (Al
47、t. to Eli P. Howard, III) William A. Webb, WEBB FIRE Protection Consulting, LLC, FL IM (Alt. to James S. Buckley) Allan Fraser, NFPA Staff Liaison This list represents the membership at the time the Committee was balloted on the nal text of this edition. Since that time, changes in the membership ma
48、y have occurred. A key to classications is found at the back of the document. NOTE: Membership on a committee shall not in and of itself constitute an endorsement of the Association or any document developed by the committee on which the member serves. Committee Scope: This Committee shall have prim
49、ary responsibility for documents on the construction, installation, operation, and maintenance of systems for air conditioning, warm air heating, and ventilating including lters, ducts, and related equipment to protect life and property from re, smoke, and gases resulting from re or from conditions having manifestations similar to re.CONTENTS 90B-3 2018 Edition Contents Chapter 1 Administration 90B 4 1.1 Scope. . 90B 4 1.2 Purpose. . 90B 4 1.3 Application. 90B 4 1.4 Equivalency. . 9
