ANSI CSA AM Z21.47-2016 CSA 2.3-2016 Gas-fired central furnaces (Seventh Edition).pdf

1、ANSI Z21.47-2016 CSA 2.3-2016Gas-fired central furnacesLegal Notice for StandardsCanadian Standards Association and CSA America, Inc. (operating as “CSA Group”) develop standards thro ugh a consensus standards development pro cess approved by the Standards Council of Canada and the American National

2、 Standards Institut e. This process brings together volunteer s representing varied viewpoints and interes ts to achieve consensus and develop a standard. Although CSA Group administ ers the process and est ablishes rules to pro mote fairness in achieving consensus, it does not independently tes t,

3、evaluat e, or verify the content of standards.Disclaimer and exclusion of liabilityThis document is pro vided without any representations, warranties, or conditions of any kind, express or implied, including, without limitation, implied warranties or conditions concerning this document s fitness for

4、 a particular purpose or use, its merchantability , or its non-infringement of any third party s intellectual pro perty rights. CSA Group does not warrant the accuracy , complet eness, or currency of any of the information published in this document. CSA Group makes no representations or warranties

5、regarding this document s compliance with any applicable statut e, rule, or regulation.IN NO EVENT SHALL CSA GROUP, ITS VOLUNTEERS, MEMBERS, SUBSIDIARIES, OR AFFILIATED COMPANIES, OR THEIR EMPLOYEES, DIRECTORS, OR OFFICERS, BE LIABLE FOR ANY DIRECT, INDIRECT, OR INCIDENTAL DAMAGES, INJURY, LOSS, COS

6、TS, OR EXPENSES, HOWSOEVER CAUSED, INCLUDING BUT NOT LIMITED TO SPECIAL OR CONSEQUENTIAL DAMAGES, LOST REVENUE, BUSINESS INTERRUPTION, LOST OR DAMAGED DATA, OR ANY OTHER COMMERCIAL OR ECONOMIC LOSS, WHETHER BASED IN CONTRACT, TORT (INCLUDING NEGLIGENCE), OR ANY OTHER THEORY OF LIABILITY, ARISING OUT

7、 OF OR RESULTING FROM ACCESS TO OR POSSESSION OR USE OF THIS DOCUMENT, EVEN IF CSA GROUP HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, INJURY, LOSS, COSTS, OR EXPENSES.In publishing and making this document available, CSA Group is not undertaking to render pro fessional or other services for

8、or on behalf of any person or entity or to perform any duty owed by any person or entity to another person or entity . The information in this document is directed to those who have the appropriat e degree of experience to use and apply its conten ts, and CSA Group accepts no responsibility whatsoev

9、er arising in any way from any and all use of or reliance on the information contained in this document.CSA Group is a private not -for -profit company that publishes voluntary standards and related documents. CSA Group has no power , nor does it undertake, to enforce compliance with the contents of

10、 the standards or other documents it publishes.Intellectual property rights and ownershipAs between CSA Group and the users of this document (whether it be in print ed or electronic form), CSA Group is the owner , or the authorized licensee, of all works contained herein that are pro tect ed by copy

11、right, all trade-marks (except as otherwise not ed to the contrary), and all inventions and trade secrets that may be contained in this document, whether or not such inventions and trade secrets are prot ected by patents and applications for patents. Without limitation, the unauthorized use, modific

12、ation, copying, or disclosure of this document may violate laws that pro tect CSA Groups and/or other s int ellectual property and may give rise to a right in CSA Group and/or others to seek legal redress for such use, modification, copying, or disclosure. To the extent permitt ed by licence or by l

13、aw , CSA Group reserves all int ellectual property rights in this document.Patent rightsAtt ention is drawn to the possibility that some of the elements of this standard may be the subject of patent rights. CSA Group shall not be held responsible for identifying any or all such patent rights. Users

14、of this st andard are expressly advised that determ ination of the validity of any such patent rights is entirely their own responsibility .Authorized use of this documentThis document is being provided by CSA Group for informational and non-commercial use only . The user of this document is authori

15、zed to do only the following:If this document is in electronic form: load this document onto a computer for the sole purpose of reviewing it; search and bro wse this document; and print this document if it is in PDF format.Limited copies of this document in print or paper form may be distribut ed on

16、ly to persons who are authorized by CSA Group to have such copies, and only if this Legal Notice appear s on each such copy .In addition, users may not and may not permit others to alter this document in any way or remove this Legal Notice from the attached standard; sell this document without autho

17、rization from CSA Group; or make an electronic copy of this document.If you do not agree with any of the terms and conditions contained in this Legal Notice, you may not load or use this document or make any copies of the contents hereof, and if you do make such copies, you are required to destr oy

18、them immediately . Use of this document constitut es your acceptance of the terms and conditions of this Legal Notice.Revision HistoryANSI Z21.47-2016 CSA 2.3-2016, Gas-fired central furnacesRevision from previous edition Revision symbol (in margin)Clauses 1.1 , 1.8 , 1.9 , 1.10 , 1.12 , 1.14 , 1.16

19、 , 3, 4.5.6 , 4.6.10 , 4.7.5 , 4.10.3 , 4.10.19 , 4.11.5 , 4.11.6 , 4.12.3 , 4.12.4 , 4.14.14 , 4.14.15 , 4.17.1 , 4.17.4 , 4.17.10 , 4.17.24 , 4.18.2 , 4.22.3 , 4.23.6 , 4.25 , 4.26.3 , 4.26.5 , 5.1.1 , 5.1.3 , 5.4 , 5.5.3 , 5.7 , 5.8.1 , 5.8.4 , 5.10.12 , 5.12.6 , 5.19.1 , 5.19.2 , 5.20 , 5.21 , 5

20、.22 , 5.27.4 , 5.27.6 , 5.29.4 , 5.30 , 5.33.2 , 6.9.3 , 6.11.2 , 7.4.5 , 7.7 , 8.1.3 , 8.9.1 , 8.10.3 , 9.1.1 , 9.5.1 , 9.5.2 , 11.6.1 , 11.7 , 12.1 , 13.3 , G.2.5 , H.1.1 , H.3 , and S.2Standards Update ServiceANSI Z21.47-2016 CSA 2.3-2016November 2016Title: Gas-fired central furnacesTo regist er

21、for e-mail notification about any updat es to this publication go to shop.csa.ca click on CSA Updat e ServiceThe List ID that you will need to regist er for updat es to this publication is 2424023.If you require assista nce, please e-mail t echsupportcsagr oup.org or call 416-747-2233.Visit CSA Gr o

22、ups policy on privacy at www .csagr oup.org/legal to find out how we prot ect your per sonal information.CSA Group American National Standards InstituteThe Canadian Standards Association (operating as CSA Gr oup), under whose auspices this National Standard has been produced, was charte red in 1919

23、and accredit ed by the Standards Council of Canada to the National Standards sy st em in 1973. It is a not -for - pro fit, nons tatutory , voluntary membership association engaged in stan dards development and certification activities. CSA Gr oup standards reflect a national consensus of pro ducers

24、and user s including manufacturers, consumer s, retailer s, unions and profes sional organizations, and governmental agencies. The stan dards are used widely by indus try and commerce and oft en adopt ed by municipal, provincial, and federal governments in their regulations, particularly in the fiel

25、ds of health, safety , building and cons truction, and the environm ent.Individuals, companies, and associations acro ss Canada indicate their support for CSA Gr oups stan dards development by volunte ering their time and skills to Commit tee work and supporting CSA Gr oups objectives through sustai

26、 ning member ships. The more than 7000 committ ee volunte ers and the 2000 sustai ning member ships together form CSA Gr oups total member ship fro m which its Directors are chosen. Sustai ning member ships represent a major source of income for CSA Gr oups stan dards development activities.CSA Gr o

27、up offers certification and tes ting services in support of and as an ext ension to its stan dards development activities. To ensure the integri ty of its certification pr ocess, CSA Gr oup regularly and continually audits and inspects pr oducts that bear the CSA Gr oup Mark.In addition to its head

28、office and laboratory complex in Toronto, CSA Gr oup has regional branch offices in major centres acro ss Canada and inspection and te sting agencies in eight countries. Since 1919, CSA Gr oup has developed the necessary expertise to meet its corporat e mission: CSA Group is an independent service o

29、rganization whose mission is to pr ovide an open and effective forum for activities facilitating the exchange of goods and services through the use of stan dards, certification and relat ed services to meet national and int ernational needs.The American National Standards Ins titute (ANSI), Inc. is

30、the nationally recognized coordinator of voluntary standards development in the United States thr ough which voluntary organizations, representing virtually every technical discipline and every facet of trade and commerce, organized labor and consumer int erests, establish and improve the some 10,00

31、0 national consensus stan dards currently approved as American National Standards. ANSI provides that the inter ests of the public may have appr opriate participation and representation in standardization activity , and cooperate s with departments and agencies of U.S. Federal, stat e and local gove

32、rnments in achieving compatibility between government codes and standards and the voluntary standards of indus try and commerce.ANSI represents the inter est s of the Unit ed State s in international nontreaty organizations such as the International Organization for Standardization (ISO) and the Int

33、 ernational Electr otechnical Commission (IEC). The Institut e maintains close ties with regional organizations such as the Pacific Area Standards Congress (PASC) and the Pan American Standards Commission (COPANT). As such, ANSI coordinate s the activities involved in the U.S. participation in these

34、 groups.ANSI approval of standards is intended to verify that the principles of openness and due process have been followed in the approval proce dure and that a consensus of those directly and mater ially affect ed by the stan dards has been achieved. ANSI coordination is intended to assist the vol

35、untary sys te m to ensure that national standards needs are identified and met with a set of s tandards that are without conflict or unnecessary duplication in their requirements.For further information on CSA Gr oup services, writ e to CSA Gr oup 178 Rexdale Boulevard, Toro nto, Ontario, Canada M9W

36、 1R3Responsibility of approving American stan dards rest s with the American National Standards Ins titute, Inc. 25 West 43rd Street, Fourth floor New York, NY 10036ISBN 978-1-4883-0121-6 2016 CSA Group All rights reserved. No part of this publication may be reproduced in any form whatsoever without

37、 the prior permission of the publisher .Published in November 2016 by CSA Group A not -for-prof it privat e sect or organization 178 Re xdale Boulevard, Toront o, Ontario, Canada M9W 1R3 To purchase st andards and related publications, visit our Online Store at shop.csa.caor call to ll-free 1-800-46

38、3-6727 or 416-747-4044.A trademark of the Canadian Standards Association and CSA America Inc., operating as “CSA Group”American National Standards Institute, Inc.Interprovincial Gas Advisory CouncilApproved on Octo ber 28, 2016 by ANSIApproved on Augus t 20, 2016 by IGACEffective in Canada May 1, 20

39、18Gas-fired central furnacesANSI Z21.47-2016 CSA 2.3-2016ANSI Z21.47-2016 CSA 2.3-2016Gas-fired central furnacesNovember 2016 2016 CSA Group 1ContentsInt erpro vincial Gas Advisory Council 5Z21/83 Technical Committ ee on Performance and Inst allation of Gas Burning Appliances and Relat ed Accessorie

40、s 7CSA Technical Committ ee on Gas Appliances and Relate d Accessories 11Z21/CSA Joint Technical Subcommitt ee on Standards for Gas-Fired Central Furnaces 13Preface 171 Scope 212 Reference publications 233 Definitions 284 Cons truction 414.1 General construc tion and assembly 414.2 Mat erials 444.3

41、Polymeric mat erials in air handling compartments 474.4 Casings, ext ernal parts, and openings 484.5 Accessibility 494.6 Gas supply lines 504.7 Orifice spuds and orifice fit tings 534.8 Combus tion air supply and contr ol 544.9 Main burner s and flame spreaders 564.10 Automatic gas ignition s ys tem

42、s and pilot filt ers 584.11 Gas flow contr ols 604.12 Limit and fan controls 634.13 Condensat e disposal 644.14 Draft hoods, flue connections, and int egral venting sy st ems 654.15 Automatic vent damper devices 684.16 Motor s and blower s 704.17 Electrical equipment and wiring 714.18 Pr ot ection o

43、f service per sonnel 814.19 Furnaces for ins tallation downstre am fr om refrigeration sy st ems 834.20 Cooling sections of furnaces with cooling units 844.21 Enclosed furnaces 844.22 Ins tructions 854.23 Ins tallation manuals 864.24 Maint enance and service manuals 984.25 User s information manual

44、994.26 Furnace markings 1025 Performance 1155.1 General 115ANSI Z21.47-2016 CSA 2.3-2016Gas-fired central furnacesNovember 2016 2016 CSA Group 25.2 Basic tes t arrangements 1175.3 Tes t ducts and plenums 1205.4 Tes t Gases 1255.5 Tes t pressures and burner adjust ments 1265.6 Static pressure and air

45、 flow adjust ments 1275.7 Cat egory deter mination 1295.8 Combus tion 1325.9 Burner operating charact erist ics 1345.10 Pilot burners and safety shutoff devices 1365.11 Direct ignition sy st ems 1425.12 Pr oved ignit er sy st em 1445.13 Flame roll -out safety shutoff means 1475.14 Manifold and contr

46、 ol assembly capacity 1485.15 Corr osion resis tance 1485.16 Flue gas tempe rature 1485.17 Allowable heating element temperatures 1495.18 Flue gas baffle tempe ratures 1505.19 Main burner and flame spreader tempe ratures 1515.20 Blocked vent shutoff sys tem 1525.21 Burner blocked inlet 1535.22 Draft

47、 hoods 1535.23 Automatic vent damper devices 1565.24 Draft tes ts for furnaces not equipped with draft hoods 1595.25 Filt er s 1605.26 Allowable air tem peratures 1615.27 Wall, floor , and ceiling tempe ratures 1635.28 Temperatures of furnaces for line contact ins tallation 1715.29 Operational tes t

48、s of electrical components and parts 1715.30 Safety circuit analysis 1775.31 Furnaces for ins tallation downstre am fr om refrigeration sy st ems 1785.32 Enclosed furnaces 1785.33 Condensat e disposal s ys tem(s) 1805.34 Condensat e drain s ys tem locat ed in blower compartment 1815.35 Venting s yst

49、 ems for Category II, III, or IV furnaces 1815.36 Furnaces vented horizontally throu gh an outside wall 1825.37 Heating element cycling tes t 1925.38 Marking mater ial adhesion and legibility 1945.39 Surface tem peratures 1955.40 Thermal efficiency 1956 Direct vent central furnaces cons truction 1976.1 Scope 1976.2 General construc tion and assembly 1986.3 Mat erials 1986.4 Casings, ext ernal parts, and openings 1996.5 Accessibility 1996.6 Combus tion air supply and contr ol 1996.7 Main burner s and flame spreaders 1996.8 Vent -air intake pipes 200ANSI Z21.4