1、B41B4eB53B49 B5aB32B31B2eB34B30B2eB31B2dB31B39B39B36B43B47B41 B32B2eB39B31B2dB4dB39B36B41B4dB45B52B49B43B41B4e B4eB41B54B49B4fB4eB41B4c B53B54B41B4eB44B41B52B44B2fB43B41B4eB41B44B49B41B4e B47B41B53 B41B53B53B4fB43B49B41B54B49B4fB4e B53B54B41B4eB44B41B52B44B46B4fB52GAS-FIRED,HEAT ACTIVATED AIR CONDIT
2、IONINGAND HEAT PUMP APPLIANCESB49B4eB54B45B52B4eB41B54B49B4fB4eB41B4c B41B50B50B52B4fB56B41B4c B53B45B52B56B49B43B45B53 B2d B55B2eB53B2eB2c B49B4eB43B2eB38B35B30B31 B45B61B73B74 B50B6cB65B61B73B61B6eB74 B56B61B6cB6cB65B79 B52B64B2e Bb7 B43B6cB65B76B65B6cB61B6eB64B2c B4fB68B69B6f B34B34B31B33B31B43B4
3、1B4eB41B44B49B41B4e B47B41B53 B41B53B53B4fB43B49B41B54B49B4fB4eB35B35 B53B63B61B72B73B64B61B6cB65 B52B64B2eB2c B54B6fB72B6fB6eB74B6fB2c B4fB6eB74B61B72B69B6fB2c B43B61B6eB61B64B61 B4dB33B42 B32B52B33AMERICAN NATIONAL STANDARD CANADIAN GAS ASSOCIATION STANDARDANSI Z21.40.1-1996 CGA 2.91-M96GAS-FIRED,
4、 HEAT ACTIVATED AIRCONDITIONING AND HEAT PUMPAPPLIANCESFirst Edition - 1996This Standard is a revised editionof the formerStandards forSummer Air Conditioning Appliances, Gas-Fired Absorption SummerGas-Fired Absorption Air Conditioning AppliancesANSI Z21.40.1-1994 CAN/CGA-2.9-M86APPROVEDIGACJuly 16,
5、 1996 October 20, 1995American National Standards Institute, Inc. Interprovincial Gas Advisory CouncilEffective in Canada February, 1998Prepared byINTERNATIONAL CANADIAN GAS ASSOCIATIONAPPROVAL SERVICES - U.S., INC. and 55 Scarsdale Road8501 East Pleasant Valley Road Toronto, Ontario, Canada M3B 2R3
6、Cleveland, Ohio 44131Published - April 1997Copyright 1996International Approval Services - U.S., Inc./Canadian Gas AssociationPermission is granted to republish material herein in laws or ordinances, and inregulations, administrative orders, or similar documents issued by publicauthorities. Those de
7、siring permission for other republication should consultInternational Approval Services - U.S., Inc. or the Canadian Gas Association atthe addresses noted above.AMERICAN NATIONAL STANDARDS INSTITUTEThe American National Standards Institute(ANSI), Inc. is the nationally recognized coordinator ofvolun
8、tary standards development in the United Statesthrough which voluntary organizations, representingvirtually every technical discipline and every facet oftrade and commerce, organized labor and consumerinterests, establish and improve the some 8500national consensus standards currently approved asAme
9、rican National Standards.ANSI provides that the interests of the public mayhave appropriate participation and representation instandardization activity, and cooperates withdepartments and agencies of U.S. Federal, state andlocal governments in achieving compatibility betweengovernment codes and stan
10、dards and the voluntarystandards of industry and commerce.ANSI represents the interests of the United Statesin international nontreaty organizations such as theInternational Organization for Standardization (ISO)and the International Electrotechnical Commission(IEC). The Institute maintains close ti
11、es with regionalorganizations such as the Pacific Area StandardsCongress (PASC) and the Pan American StandardsCommission (COPANT). As such, ANSI coordinatesthe activities involved in the U.S. participation inthese groups.ANSI approval of standards is intended to verifythat the principles of openness
12、 and due process havebeen followed in the approval procedure and that aconsensus of those directly and materially affected bythe standards has been achieved. ANSI coordination isintended to assist the voluntary system to ensure thatnational standards needs are identified and met witha set of standar
13、ds that are without conflict orunnecessary duplication in their requirements.Responsibility of approving American National Standards rests with theAmerican National Standards Institute, Inc.11 West 42nd StreetNew York, NY10036INTERNATIONAL APPROVAL SERVICESThe American Gas Association and Canadian G
14、asAssociation have co-sponsored national standardsprograms in the U.S. and Canada, and the creation orharmonization of Canadian and U.S. binational gasequipment standards. International Approval Services(IAS), formed in 1993, has provided the technical andadministrative support required by these act
15、ivities, onbehalf of the co-sponsors.The Canadian Gas Association remains thesponsor of the gas equipment and installationstandards programs in Canada. In the U.S.sponsorship, or the Secretariat, was transferred inMay 1996 from the American Gas Association toInternational Approval Services - U.S., I
16、nc. AlthoughIAS-U.S. acts as secretariat of the Z21 Committee, theactions of the committee are independent of ANSI andIAS-U.S.IAS also operates a design certification programfor fuel-fired products covered by the standards,accredited by the American National StandardsInstitute and the Standards Coun
17、cil of Canada, andaccepted by all Canadian inspection authorities.Through the Gas Research Institute (GRI) and theCanadian Gas Research Institute (CGRI), the gasindustry helps pursue the improvement of gasequipment and the development of new products.Data from these projects is available to Standard
18、sCommittees for review and consideration.As technical advances take place, new standardsand revisions to existing standards may be necessary.When they are believed desirable, recommendations orsuggestions should be forwarded to the StandardsDepartments of IAS U.S. at 8501 East PleasantValley Road, C
19、leveland, Ohio 44131, or IAS Canadaat 55 Scarsdale Road, Don Mills, Ontario, CanadaM3B 2R3. A proposal form is provided in the back ofthis standard.CANADIAN GAS ASSOCIATIONThe Canadian Gas Association (CGA), has beenaccredited by the Standards Council of Canada toprepare National Standards of Canada
20、 in the area ofequipment for use with natural gas and propane.Founded in 1907, its 320 corporate members span theindustry spectrum and include natural gastransmission companies, distributors, manufacturers ofother gas appliances and equipment, brokers,marketers and producers.Committees that write th
21、e standards includerepresentation from all interests and are soconstituted that no one interest may dominate. Theinterests represented include consumers,manufacturers, utilities, governmental inspectionauthorities and certification organizations. Standardsare prepared using the consensus principle w
22、ith effortapplied to reconcile differing opinions. Governmentinspection authorities having jurisdiction also balloton the standards asmembers of the Interprovincial Gas Advisory Council(IGAC).The CGA Standards Advisory Committee (SAC)reviews committee structures and procedures todetermine that the s
23、tandards meets the criteria of theStandards Council of Canada.This Standard has been accepted by theStandards Committee, IGAC and SAC.This Standard is intended to be used within thescope of the standard by the manufacturing sector, bythose applying the equipment, or those responsible forits proper a
24、pplication. It is the responsibility of theuser to determine in each case that the Standard issuitable for the specific application. The StandardsCommittee and IGAC normally stipulate an effectivedate for the Standard.PREFACEThis publication represents a basic standard for safe operation, substantia
25、l anddurable construction, and acceptable performance of gas-fired, heat activated air conditioning andheat pump appliances. It is the result of years of experience in the manufacture, testing, installation,maintenance, inspection and research on gas-fired, heat activated air conditioning and heat p
26、umpappliances designed for utilization of gas. There are risks of injury to persons inherent in appliancesthat, if completely eliminated, would defeat the utility of the appliance. The provisions in thisstandard are intended to help reduce such risks while retaining the normal operation of theapplia
27、nce.Nothing in this standard is to be considered in any way as indicating a measure ofquality beyond compliance with the provisions it contains. It is designed to allow compliance of gas-fired, heat activated air conditioning and heat pump appliances, the safety construction andperformance of which
28、may exceed the various provisions specified herein. In its preparation,recognition has been given to possibilities of improvement through ingenuity of design. As progresstakes place, revisions may become necessary. When they are believed desirable, recommendations orsuggestions should be forwarded t
29、o the Chairman of Accredited Standards Committee Z21, 8501 EastPleasant Valley Road, Cleveland, Ohio 44131, or the Chairman of the Canadian Gas AssociationStandards Steering Committee on Gas Burning Appliances and Related Accessories, 55 ScarsdaleRoad, Don Mills, Ontario, Canada, M3B 2R3.Safe and sa
30、tisfactory operation of gas-fired heat activated air conditioningappliances depends to a great extent upon its proper installation, use and maintenance. It should beinstalled, as applicable, in accordance with the National Fuel Gas Code, ANSI Z223.1; the Natural GasInstallation Code, CAN/CGA-B149.1;
31、 the Propane Installation Code, CAN/CGA-B149.2.Users of this American National Standard/Canadian Gas Association Standard areadvised that the devices, products and activities within its scope may be subject to regulation at theFederal, Territorial, Provincial, state or local level. Users are strongl
32、y urged to investigate thispossibility through appropriate channels. In the event of a conflict with this standard, the Federal,Territorial, Provincial, state or local regulation should be followed.NOTICE TO READER: The Canadian Gas Association (CGA) has been accredited by the StandardsCouncil of Ca
33、nada to prepare standards in the area of equipment for use with natural gas andpropane. Standards are prepared by committees that include representatives from all interests andare so constituted that no one interest may dominate. The interests represented includegovernmental inspection authorities,
34、certification agencies, manufacturers, utilities, and consumers.Government inspection authorities having jurisdiction review and approve these standards; sitting asthe Interprovincial Gas Advisory Council (IGAC).THIS STANDARD IS INTENDED TO BE USED BY THE MANUFACTURING SECTOR AND BY THOSEAPPLYING TH
35、E EQUIPMENT AND BY THOSE RESPONSIBLE FOR ITS PROPER INSTALLATION.IT IS THE RESPONSIBILITY OF THESE USERS TO DETERMINE THAT IN EACH CASE THISSTANDARD IS SUITABLE FOR AND APPLICABLE TO THE SPECIFIC USE THEY INTEND.CAUTION NOTICE: This American National Standard may be revised or withdrawn at any time.
36、 Theprocedures of the American National Standards Institute, Inc., require that action be taken toreaffirm, revise or withdraw this standard no later than five (5) years from the date of approval.Purchasers of American National Standards may receive current information on all standards bycalling or
37、writing the American National Standards Institute, Inc., 11 West 42nd Street, New York,N.Y. 10036, (212) 642-4900.EFFECTIVE DATE:MAn organization using this standard for product evaluation as a part of itscertification program will normally establish the date by which all products certified by thato
38、rganization should comply with this standard. In Canada the Standards Committee and theInterprovincial Gas Advisory Council normally stipulate an effective date for the standard.HISTORY OF THE DEVELOPMENT OF THE STANDARDFOR GAS-FIRED, HEAT ACTIVATED AIR CONDITIONINGAND HEAT PUMP APPLIANCES(This Hist
39、ory is informative and is not part of the standard.)With the onset of the Free Trade Agreementbetween the United States and Canada onJanuary 2, 1988, significant attention was givento the harmonization of the United States andCanadian safety standards addressing gas-firedequipment for residential, c
40、ommercial andindustrial applications. It was believed that theelimination of the differences between thestandards would remove potential tradebarriers and provide an atmosphere in whichNorth American manufacturers could marketmore freely in the United States and Canada.The harmonization of these sta
41、ndards was alsoseen as a step toward harmonization withinternational standards.With the formation of joint subcommittees,a Canadian Gas Association Standards SteeringCommittee on Gas Burning Appliances andRelated Accessories was established to parallelAccredited Standards Committees Z21 and Z83,and
42、to support the formation of jointsubcommittees. Operating procedures, inaccordance with American National StandardsInstitute procedures, for joint subcommitteeswere developed and subsequently approved byANSI on April 1, 1993.At its March 1987 meeting, the airconditioning subcommittee was informed of
43、industry interest in the development ofstandards coverage for new products whichwould heat, cool or generate electricity asseparate functions or in combination. Thesubcommittee endorsed the need for suchcoverage and recommended to the Z21Committee that the subcommittees scope beexpanded and clarifie
44、d, to cover preparation ofstandards for energy conversion equipmentutilizing gas fuel to provide: 1) conditioned air,liquid or refrigerant to spaces or equipment;2) on-site electrical power generation;3) mechanical power; and 4) any combinationof the above. Equipment may include, but isnot limited t
45、o, heat pumps, fuel cells, gasengines, dehumidifiers and cogenerators.The subcommittee agreed the preparation ofstandards coverage under its scope couldinclude drafting new standards, as well asupgrading the existing air conditioningstandard, Z21.40.1. The subcommitteeestablished the Fuel Gas Heat P
46、ump WorkingGroup to review the current Z21.40.1 and draftnew standards coverage for productapplication outlined under the revised scope.A Z21/CGA Joint Subcommittee onStandards for Gas Air Conditioning Applianceswas established, based on memberships of theZ21 Subcommittee on Standards for Gas AirCon
47、ditioning Appliances and the CGA 2.9Committee on Standards for Gas AirConditioning Appliances. Membershipencompasses representatives from the U.S. andCanadian manufacturing industry, gassuppliers, regulatory authorities and generalinterest with the intent that each country isequally represented.Base
48、d on the efforts of the Fuel Gas HeatPump Working Group, draft revisions to ANSIZ21.40.1-1981 and its addenda were adopted fordistribution for review and comment by thesupervising technical joint subcommittee at itsFebruary 1992 meeting. The proposed revisionswere distributed for review and comment
49、inSeptember 1992. At its February 1993 meeting,the revised standard was reviewed and furtherrevised in light of comments received.Following procedures, the Z21 Committee atits April 8, 1993 meeting, adopted the proposedrevised standard for gas-fired, heat activatedair conditioning and heat pump appliances.The seventh edition of the gas-fired, airconditioning and heat pump appliancesstandard, was approved as American NationalStandard by the American National StandardsInstitute, Inc., on March 24, 1994.At its May 1994 meeting, the joint airconditioning subcommittee adopted ANSIZ21.40.1 as a p
