1、B41B4eB53B49 B5aB32B31B2eB34B30B2eB34B2dB31B39B39B36B43B47B41 B32B2eB39B34B2dB4dB39B36B41B4dB45B52B49B43B41B4e B4eB41B54B49B4fB4eB41B4c B53B54B41B4eB44B41B52B44B2fB43B41B4eB41B44B49B41B4e B47B41B53 B41B53B53B4fB43B49B41B54B49B4fB4e B53B54B41B4eB44B41B52B44B46B4fB52PERFORMANCE TESTING AND RATING OFGA
2、S-FIRED, AIR CONDITIONINGAND HEAT PUMP APPLIANCESB49B4eB54B45B52B4eB41B54B49B4fB4eB41B4c B41B50B50B52B4fB56B41B4c B53B45B52B56B49B43B45B53 B2d B55B2eB53B2eB2c B49B4eB43B2eB38B35B30B31 B45B61B73B74 B50B6cB65B61B73B61B6eB74 B56B61B6cB6cB65B79 B52B64B2e Bb7 B43B6cB65B76B65B6cB61B6eB64B2c B4fB68B69B6f B
3、34B34B31B33B31B43B41B4eB41B44B49B41B4e B47B41B53 B41B53B53B4fB43B49B41B54B49B4fB4eB35B35 B53B63B61B72B73B64B61B6cB65 B52B64B2eB2c B54B6fB72B6fB6eB74B6fB2c B4fB6eB74B61B72B69B6fB2c B43B61B6eB61B64B61 B4dB33B42 B32B52B33AMERICAN NATIONAL STANDARD CANADIAN GAS ASSOCIATION STANDARDANSI Z21.40.4-1996 CGA
4、 2.94-M96First Edition - 1996This Standard is a revised editionof the formerStandards forPERFORMANCE TESTING AND RATING OFGAS-FIRED HEAT ACTIVATED AIRCONDITIONING AND HEAT PUMP APPLIANCESANSI Z21.40.4-1994APPROVEDIGACJuly 16, 1996 October 20, 1995American National Standards Institute, Inc. Interprov
5、incial Gas Advisory CouncilEffective in Canada February 1, 1998Prepared byINTERNATIONALAPPROVAL SERVICES - U.S., INC. and CANADIAN GAS ASSOCIATION8501 East Pleasant Valley Road 55 Scarsdale RoadCleveland, Ohio 44131 Toronto, Ontario, Canada M3B 2R3Published - April 1997Copyright 1996International Ap
6、proval 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 desiring permission for other republication should consultInternational App
7、roval 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 recognizedcoordinator of voluntary standards development inthe United States through which voluntaryorg
8、anizations, representing virtually everytechnical discipline and every facet of trade andcommerce, organized labor and consumer interests,establish and improve the some 8500 nationalconsensus standards currently approved asAmerican National Standards.ANSI provides that the interests of the publicmay
9、 have appropriate participation andrepresentation in standardization activity, andcooperates with departments and agencies of U.S.Federal, state and local governments in achievingcompatibility between government codes andstandards and the voluntary standards of industryand commerce.ANSI represents t
10、he interests of the UnitedStates in international nontreaty organizationssuch as the International Organization forStandardization (ISO) and the InternationalElectrotechnical Commission (IEC). The Institutemaintains close ties with regional organizationssuch as the Pacific Area Standards Congress(PA
11、SC) 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 toverify that the principles of openness and dueprocess have been followed in the approvalprocedure and that a conse
12、nsus of those directlyand materially affected by the standards has beenachieved. ANSI coordination is intended to assistthe voluntary system to ensure that nationalstandards needs are identified and met with a setof standards that are without conflict or unneces-sary duplication in their requirement
13、s.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 CanadianGas Association have co-sponsored nationalstandards programs in the U.S. and
14、Canada, andthe creation or harmonization of Canadian andU.S. binational gas equipment standards.International Approval Services (IAS), formed in1993, has provided the technical andadministrative support required by these activities,on behalf of the co-sponsors.The Canadian Gas Association remains th
15、esponsor 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., Inc. AlthoughIAS-U.S. acts as secretariat of the Z21 Committee,the actions of t
16、he committee are independent ofANSI and IAS-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 Council of Canada,and accepted by all Canadian inspectionauthorities. Through the
17、Gas Research Institute(GRI) and the Canadian Gas Research Institute(CGRI), the gas industry helps pursue theimprovement of gas equipment and thedevelopment of new products. Data from theseprojects is available to Standards Committees forreview and consideration.As technical advances take place, news
18、tandards and revisions to existing standards maybe necessary. When they are believed desirable,recommendations or suggestions should beforwarded to the Standards Departments of IASU.S. at 8501 East Pleasant Valley Road, Cleveland,Ohio 44131, or IAS Canada at 55 Scarsdale Road,Don Mills, Ontario, Can
19、ada M3B 2R3. A proposalform is provided in the back of this standard.CANADIAN GAS ASSOCIATIONThe Canadian Gas Association (CGA), has beenaccredited by the Standards Council of Canada toprepare National Standards of Canada in the areaof equipment for use with natural gas and propane.Founded in 1907,
20、its 320 coporate members spanthe industry spectrum and include natural gastransmission companies, distributors,manufacturers of other gas appliances andequipment, brokers, marketers and producers.Committees that write the standards includerepresentation from all interests and are soconstituted that
21、no one interest may dominate. Theinterests represented include consumers,manufacturers, utilities, governmental inspectionauthorities and certification organizations.Standards are prepared using the consensusprinciple with effort applied to reconcile differingopinions. Government inspection authorit
22、ieshaving jurisdiction also ballot on the standards asmembers of the Interprovincial Gas AdvisoryCouncil (IGAC).The CGA Standards Advisory Committee (SAC)reviews committee structures and procedures todetermine that the standards meets the criteria ofthe Standards Council of Canada.This Standard has
23、been accepted by theStandards Committee, IGAC and SAC.This Standard is intended to be used within thescope of the standard by the manufacturing sector,by those applying the equipment, or thoseresponsible for its proper application. It is theresponsibility of the user to determine in each casethat th
24、e Standard is suitable for the specificapplication. The Standards Committee and IGACnormally stipulate an effective date for theStandard.PREFACEThis publication represents a basic standard for safe operation, substantial anddurable construction, and acceptable performance of performance testing and
25、rating of gas-fired, air -conditioning and heat pumping appliances. It is the result of years of experience in the manufacture,testing, installation, maintenance, inspection and research on performance testing and rating of gas-fired, air-conditioning and heat pumping appliances designed for utiliza
26、tion of gas. There are risks ofinjury to persons inherent in appliances that, if completely eliminated, would defeat the utility of theappliance. The provisions in this standard are intended to help reduce such risks while retaining thenormal operation of the appliance.Nothing in this standard is to
27、 be considered in any way as indicating a measure ofquality beyond compliance with the provisions it contains. It is designed to allow compliance ofperformance testing and rating of gas-fired, air-conditioning and heat pumping appliances, the safetyconstruction and performance of which may exceed th
28、e various provisions specified herein. In itspreparation, recognition has been given to possibilities of improvement through ingenuity of design.As progress takes place, revisions may become necessary. When they are believed desirable,recommendations or suggestions should be forwarded to the Chairma
29、n of Accredited StandardsCommittee Z21, 8501 East Pleasant Valley Road, Cleveland, Ohio 44131, or the Chairman of theCanadian Gas Association Standards Steering Committee on Gas Burning Appliances and RelatedAccessories, 55 Scarsdale Road, Don Mills, Ontario, Canada, M3B 2R3.Safe and satisfactory op
30、eration of performance testing and rating of gas-fired, air-conditioning and heat pumping appliances depends to a great extent upon its proper installation, useand maintenance. It should be installed, as applicable, in accordance with the National Fuel GasCode, ANSI Z223.1; the Natural Gas Installat
31、ion Code, CAN/CGA-B149.1; the Propane Installation Code,CAN/CGA-B149.2; or the manufacturers installation instructions and local municipal codes.Users of this American National Standard/Canadian Gas Association Standard areadvised that the devices, products and activities within its scope may be sub
32、ject to regulation at theFederal, Territorial, Provincial, state or local level. Users are strongly 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.NOTI
33、CE TO READER: The Canadian Gas Association (CGA) has been accredited by the StandardsCouncil of Canada 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
34、 one interest may dominate. The interests represented include governmentalinspection authorities, certification agencies, manufacturers, utilities, and consumers. Governmentinspection authorities having jurisdiction review and approve these standards; sitting as theInterprovincial Gas Advisory Counc
35、il (IGAC).THIS STANDARD IS INTENDED TO BE USED BY THE MANUFACTURING SECTOR AND BY THOSEAPPLYING THE 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 TH
36、EY INTEND.CAUTION NOTICE: This American National Standard may be revised or withdrawn at any time. 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.Purcha
37、sers of American National Standards may receive current information on all standards bycalling or 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
38、itscertification program will normally establish the date by which all products certified by thatorganization 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 DEVELOPME
39、NT OF STANDARDFOR PERFORMANCE TESTING AND RATING OFGAS-FIRED, AIR-CONDITIONING AND HEAT PUMPING APPLIANCES(This History 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
40、the harmonization of the United States andCanadian safety standards addressing gas-firedequipment for residential, commercial andindustrial applications. It was believed that theelimination of the differences between thestandards would remove potential tradebarriers and provide an atmosphere in whic
41、hNorth American manufacturers could marketmore freely in the United States and Canada.The harmonization of these standards was alsoseen as a step toward harmonization withinternational standards.With the formation of joint subcommittees,a Canadian Gas Association Standards SteeringCommittee on Gas B
42、urning Appliances andRelated Accessories was established to parallelAccredited Standards Committees Z21 and Z83,and to support the formation of jointsubcommittees. Operating procedures, inaccordance with American National StandardsInstitute procedures, for joint subcommitteeswere developed and subse
43、quently approved byANSI on April 1, 1993.At its March 1987 meeting, the Z21 airconditioning subcommittee was informed ofindustry interest in the development ofstandards coverage for new products whichwould heat, cool or generate electricity asseparate functions or in combination. Thesubcommittee end
44、orsed the need for suchcoverage and recommended to AccreditedStandards Committee Z21 that thesubcommittees scope be expanded andclarified, to cover preparation of standards forenergy conversion equipment utilizing gas fuelto provide: 1) conditioned air, liquid orrefrigerant to spaces or equipment; 2
45、) on-siteelectrical power generation; 3) mechanicalpower; and 4) any combination of the above.Equipment may include, but is not limited to,heat pumps, fuel cells, gas engines, humidifiers,dehumidifiers and cogenerators.The subcommittee agreed the preparation ofstandards coverage under its scope coul
46、dinclude drafting new standards, as well asupgrading existing air conditioning standards.The subcommittee established the Fuel GasHeat Pump Working Group to review thecurrent air conditioning standards and draftnew standards coverage for productapplication outlined under the revised scope.In that th
47、ere are no Department of Energy(DOE) ratings for gas-fired heat pumps and airconditioners, it was agreed a new standardshould be developed to provide gas-fired heatpump/air conditioner manufacturers with themethod of testing, efficiency rating, and cost ofoperation procedures and calculations whicha
48、re currently available to electric heatpump/air conditioning manufacturers. Theproposed standard was to be based on similarsteady-state and seasonal efficiencycalculations governed by the DOE.A Z21/CGA Joint Subcommittee onStandards for Gas Air Conditioning Applianceswas established, based on member
49、ships of theZ21 Subcommittee on Standards for Gas AirConditioning 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.Based on the efforts of the Fuel Gas HeatPump Working Group, a proposed Z21.40.4standard was adopted for distribution forreview and comment by the supervisingtechnical joint subcommittee at its February1992 meeting. The proposed standard wasdi
