1、ANSI/AHRI/ASHRAE ISO Standard 13256-1:1998 (RA 2012)Reaffirmation of ANSI/ARI/ASHRAE ISO Standard 13256-1:1998Water-source heat pumps Testing and rating forperformance Part 1: Water-to-air andbrine-to-air heat pumpsApproved by AHRI on August 10, 2001, and reaffirmed on June 7, 2011; by the ASHRAE St
2、andards Committee on March 20,2002, and reaffirmed on January 21, 2012; by the ASHRAE Board of Directors on July 3, 2003, and reaffirmed on January 25, 2012;and by the American National Standards Institute on August 15, 2003, and reaffirmed on November 3, 2011.ASHRAE Standards are scheduled to be up
3、dated on a five-year cycle; the date following the standard number is the year ofASHRAE Board of Directors approval. The latest edition of an ASHRAE Standard may be purchased on the ASHRAE Web site(www.ashrae.org) or from ASHRAE Customer Service, 1791 Tullie Circle, NE, Atlanta, GA 30329-2305. E-mai
4、l:ordersashrae.org. Fax: 404-321-5478. Telephone: 404-636-8400 (worldwide) or toll free 1-800-527-4723 (for orders in US andCanada). For reprint permission, go to www.ashrae.org/permissions. 1998 ISO, 2012 AHRI, ASHRAE ISSN 1041-2336SPECIAL NOTEThis American National Standard (ANS) is a national vol
5、untary consensus standard developed under the auspices of ASHRAE.Consensus is defined by the American National Standards Institute (ANSI), of which ASHRAE is a member and which has approved thisstandard as an ANS, as “substantial agreement reached by directly and materially affected interest categor
6、ies. This signifies the concurrenceof more than a simple majority, but not necessarily unanimity. Consensus requires that all views and objections be considered, and that aneffort be made toward their resolution.” Compliance with this standard is voluntary until and unless a legal jurisdiction makes
7、 compliancemandatory through legislation.ASHRAE obtains consensus through participation of its national and international members, associated societies, and public review.ASHRAE Standards are prepared by a Project Committee appointed specifically for the purpose of writing the Standard. The ProjectC
8、ommittee Chair and Vice-Chair must be members of ASHRAE; while other committee members may or may not be ASHRAE members, allmust be technically qualified in the subject area of the Standard. Every effort is made to balance the concerned interests on all ProjectCommittees.The Manager of Standards of
9、ASHRAE should be contacted for:a. interpretation of the contents of this Standard,b. participation in the next review of the Standard,c. offering constructive criticism for improving the Standard, ord. permission to reprint portions of the Standard.ASHRAE DISCLAIMERASHRAE uses its best efforts to pr
10、omulgate Standards and Guidelines for the benefit of the public in light of available information andaccepted industry practices. However, ASHRAE does not guarantee, certify, or assure the safety or performance of any products, components,or systems tested, installed, or operated in accordance with
11、ASHRAEs Standards or Guidelines or that any tests conducted under itsStandards or Guidelines will be nonhazardous or free from risk.ASHRAE INDUSTRIAL ADVERTISING POLICY ON STANDARDSASHRAE Standards and Guidelines are established to assist industry and the public by offering a uniform method of testi
12、ng for ratingpurposes,bysuggestingsafepracticesindesigningandinstallingequipment,byprovidingproperdefinitionsofthisequipment,andbyprovidingother information that may serve to guide the industry.The creation of ASHRAE Standards and Guidelines is determined by the need for them,and conformance to them
13、 is completely voluntary.In referring to this Standard or Guideline and in marking of equipment and in advertising, no claim shall be made, either stated or implied,that the product has been approved by ASHRAE.AHRI IMPORTANT SAFETY DISCLAIMERAHRI does not set safety standards and does not certify or
14、 guarantee the safety of any products, components or systemsdesigned, rested, rated, installed or operated in accordance with this standard/guideline. It is strongly recommended that productsbe designed, constructed, assembled, installed and operated in accordance with nationally recognized safety s
15、tandards and coderequirements appropriate for products covered by this standard/guideline.AHRI uses its best efforts to develop standards/guidelines employing state-of-the-art and accepted industry practices. AHRIdoes not certify or guarantee that any tests conducted under its standards/guidelines w
16、ill be non-hazardous or free from risk. ASHRAE (www.ashrae.org). For personal use only. Additional reproduction, distribution, or transmission in either print or digital form is not permitted without ASHRAEs prior written permission.CONTENTSANSI/AHRI/ASHRAE ISO Standard 13256-1:1998 (RA 2012),Water-
17、source heat pumpsTesting and rating for performancePart 1: Water-to-air and brine-to-air heat pumpsThis standard is an identical national adoption of the ISO standard.SECTION PAGEForeword. 2Introduction . 21 Scope . 22 Normative Reference 23 Definitions. 24 Rating and Test Conditions. 35 Performance
18、 Requirements 56 Test Methods 77 Marking Provisions . 98 Publication of Ratings. 10Normative Annex ATest Procedures .10Normative Annex BIndoor Air-Enthalpy Test Method .10Normative Annex CLiquid Enthalpy Test Method .11Normative Annex DAirflow Measurement .11Normative Annex ECalorimeter Room Test Me
19、thod.12Informative Annex FInstrumentation and Measurements .14Informative Annex GSymbols Used in Annexes .21Informative Annex HBibliography22NOTEApproved addenda, errata, or interpretations for this standard can be downloaded free of charge from the ASHRAEWeb site at www.ashrae.org/technology. 1998
20、ISO 2012 AHRI 2012 ASHRAEInternational Organization for Standardization Air-Conditioning, Heating, and Refrigeration Institute1, rue de Varemb, Case postale 56 4100 N. Fairfax Drive, Suite 200 1791 Tullie Circle NECH-1211 Geneva 20, Switzerland Arlington, VA 22203 Atlanta, GA 30329www.iso.org www.ar
21、i.org www.ashrae.orgAll rights reserved. All rights reserved. All rights reserved.ASHRAE is a registered trademark of the American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc.ANSI is a registered trademark of the American National Standards Institute. ASHRAE (www.ashrae.org
22、). For personal use only. Additional reproduction, distribution, or transmission in either print or digital form is not permitted without ASHRAEs prior written permission.2 ANSI/AHRI/ASHRAE ISO Standard 13256-1:1998 (RA 2012)(This foreword is not part of this standard. It is merelyinformative and do
23、es not contain requirements necessaryfor conformance to the standard. It has not beenprocessed according to the ANSI requirements for astandard and may contain material that has not beensubject to public review or a consensus process.Unresolved objectors on informative material are notoffered the ri
24、ght to appeal at ASHRAE or ANSI.)FOREWORDISO (the International Organization for Standardiza-tion) is a worldwide federation of national standards bodies(ISO member bodies). The work of preparing InternationalStandards is normally carried out through ISO technicalcommittees. Each member body interes
25、ted in a subject forwhich a technical committee has been established has theright to be represented on that committee. Internationalorganizations, governmental and non-governmental, in liai-son with ISO, also take part in the work. ISO collaboratesclosely with the International Electrotechnical Comm
26、ission(IEC) on all matters of electrotechnical standardization.Draft International Standards adopted by the technicalcommittees are circulated to the member bodies for voting.Publication as an International Standard requires approvalby at least 75% of the member bodies casting a vote.This part of IS
27、O 13256 was developed by ISO TechnicalCommittee TC 86, Refrigeration, Subcommittee SC 6, Test-ing and rating of air-conditioners and heat pumps.ISO 13256 consists of the following parts, under thegeneral title Water-source heat pumpsTesting and ratingfor performance:Part 1: Water-to-air and brine-to
28、-air heat pumpsPart 2: Water-to-water and brine-to-water heat pumpsAnnexes A, B, C, D, and E form an integral part of thispart of ISO 13256. Annexes F, G, and H are for informationonly.INTRODUCTIONThis part of ISO 13256 covers heating and coolingsystems which are generally referred to as “water-sour
29、ce heatpumps.” These systems generally include an indoor coil withair-moving means, a compressor, and a refrigerant-to-water orrefrigerant-to-brine heat exchanger. A system may provideboth heating and cooling, cooling-only, or heating-only func-tions.1. SCOPE1.1 This part of ISO 13256 establishes pe
30、rformance testingand rating criteria for factory-made residential, commercialand industrial, electrically-driven, mechanical-compressiontype, water-to-air and brine-to-air heat pumps. The require-ments for testing and rating contained in this part ofISO 13256 are based on the use of matched assembli
31、es.1.2 Equipment designed for rating at one application underthis part of ISO 13256 may not be suitable at all applicationscovered in this part of ISO 13256.1.3 This part of ISO 13256 does not apply to the testing andrating of individual assemblies for separate use, nor to thetesting and rating of h
32、eat pumps covered in ISO 5151, ISO13253 or ISO 13256-2.Note: For the purpose of the remaining clauses, the terms“equipment” or “heat pumps” may be used to mean “water-to-air heat pumps” or “brine-to-air heat pumps” and the term“liquid” refers to either “water” or “brine.”2. NORMATIVE REFERENCEThe fo
33、llowing standard contains provisions which,through reference in this text, constitute provisions of this partof ISO 13256.At the time of publication, the edition indicatedwas valid. All standards are subject to revision, and parties toagreements based on this part of ISO 13256 are encouraged toinves
34、tigate the possibility of applying the most recent editionof the standard indicated below. Members of IEC and ISOmaintain registers of currently valid International Standards.ISO 817:2005, RefrigerantsDesignation system.3. DEFINITIONSFor the purposes of this part of ISO 13256, the followingdefinitio
35、ns apply.3.1 water-to-air heat pump and/or brine-to-air heatpumpheat pump which consists of one or more factory-madeassemblies which normally include an indoor conditioningcoil with air-moving means, compressor(s), and refrigerant-to-water or refrigerant-to-brine heat exchanger(s), includingmeans to
36、 provide both cooling and heating, cooling-only, orheating-only functionsNotes:1. When such equipment is provided in more than oneassembly, the separated assemblies should bedesigned to be used together.2. Such equipment may also provide functions of sani-tary water heating, air cleaning, dehumidify
37、ing, andhumidifying.3.1.1 water-loop heat pump applicationwater-to-air heat pump using liquid circulating in acommon piping loop functioning as a heat source/heat sinkNote: The temperature of the liquid loop is usuallymechanicallycontrolledwithinatemperaturerangeof15Cto40C.3.1.2 ground-water heat pu
38、mp applicationwater-to-air heat pump using water pumped from a well,lake, or stream functioning as a heat source/heat sinkNote: The temperature of the water is related to theclimatic conditions and may vary from 5C to 25C for deepwells.3.1.3 ground-loop heat pump applicationbrine-to-air heat pump us
39、ing a brine solution circulatingthrough a subsurface piping loop functioning as a heat source/heat sink ASHRAE (www.ashrae.org). For personal use only. Additional reproduction, distribution, or transmission in either print or digital form is not permitted without ASHRAEs prior written permission.ANS
40、I/AHRI/ASHRAE ISO Standard 13256-1:1998 (RA 2012) 3Notes:1. The heat exchange loop may be placed in horizontaltrenches or vertical bores, or be submerged in a bodyof surface water.2. The temperature of the brine is related to the climaticconditions and may vary from 5C to 40C.3.2 total cooling capac
41、ityamount of sensible and latent heat that the equipment canremove from the conditioned space in a defined interval oftime, in watts, as determined by the specified test methods3.3 net total cooling capacitytotal cooling capacity with fan power adjustment(See 4.1.3)3.4 heating capacityamount of heat
42、 that the equipment can add to the condi-tioned space in a defined interval of time, in watts, as deter-mined by the specified test methods3.5 net heating capacityheating capacity with fan power adjustment (See 4.1.3)3.6 rated voltagevoltageshownonthenameplateoftheequipment,involts3.7 rated frequenc
43、yfrequency shown on the nameplate of the equipment, inhertz3.8 energy efficiency ratio (EER)ratio of the net total cooling capacity to the effectivepower input at any given set of rating conditions, in watts perwatt3.9 coefficient of performance (COP)ratio of the net heating capacity to the effectiv
44、e powerinput of the equipment at any given set of rating conditions, inwatts per watt3.10 standard airdry air at 20.0C and 101.324 kPa having a mass densityof 1.204 kg/m33.11 effective power inputaverage electrical power input to the equipment within adefined interval of time, in watts; i.e., the su
45、m of: the power input for operation of the compressor exclud-ing additional electrical heating devices, the power input of all control and safety devices of theequipment, and the proportional power input of the conveying devicesfor the transport of the heat transfer media through theheat pump only (
46、e.g., fans, pumps, whether internal orexternal, whether provided with the equipment or not)(See 4.1.3 and 4.1.4.)3.12 latent cooling capacityamountoflatentheatthattheequipmentcanremovefromthe conditioned space in a defined interval of time, in watts3.13 sensible cooling capacityamount of sensible he
47、at that the equipment can removefrom the conditioned space in a defined interval of time, inwatts4. RATING AND TEST CONDITIONS4.1 Rating conditions for the determination of capacity4.1.1 Standard ratingsStandardratingsshallbeestablishedatthestandardratingconditionsspecifiedin4.2,usingthetestprocedur
48、esdescribedin clause 6. Standard ratings relating to cooling and heatingcapacities shall be net values, including the effects of circu-lating-fan heat, but not including supplementary heat. Stan-dard efficiency ratings shall be based on the effective powerinput as defined in 3.11.4.1.2 Power input o
49、f fans for heat pumps without ductconnectionIn the case of heat pumps which are not designed for ductconnection and which are equipped with an integral fan, allpower consumed by the fans shall be included in the effectivepower input to the heat pump.4.1.3 Power input of fans for heat pumps with ductconnection4.1.3.1 If no fan is provided with the heat pump, a fanpower adjustment is to be included in the effective powerinput to the heat pump, using the following formula:wherefais the fan power adjustment, in watts; = 0.3 103by convention;p
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