1、ANSI/ASHRAE Standard 58-1986 (RA 2014)(Reaffirmation of ANSI/ASHRAE Standard 58-1986)Method of Testing for RatingRoom Air-Conditioner andPackaged TerminalAir-Conditioner HeatingCapacityApproved by the ASHRAE Standards Committee on October 25, 1986, and reaffirmed on June 28, 2014; by the ASHRAE Boar
2、dof Directors on December 12, 1986, and reaffirmed on July 2, 2014; and by the American National Standards Institute on October20, 1998, and reaffirmed on July 3, 2014.ASHRAE Standards are scheduled to be updated on a five-year cycle; the date following the standard number is the year ofASHRAE Board
3、 of Directors approval. The latest edition of an ASHRAE Standard may be purchased on the ASHRAE website(www.ashrae.org) or from ASHRAE Customer Service, 1791 Tullie Circle, NE, Atlanta, GA 30329-2305. E-mail:ordersashrae.org. Fax: 678-539-2129. Telephone: 404-636-8400 (worldwide) or toll free 1-800-
4、527-4723 (for orders in US andCanada). For reprint permission, go to www.ashrae.org/permissions. 2014 ASHRAE ISSN 1041-2336SPECIAL NOTEThis American National Standard (ANS) is a national voluntary consensus standard developed under the auspices of ASHRAE.Consensus is defined by the American National
5、 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 categories. This signifies the concurrenceof more than a simple majority, but not necessarily unanimity. Consensus re
6、quires 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 compliancemandatory through legislation.ASHRAE obtains consensus through participation of its national and in
7、ternational members, associated societies, and public review.ASHRAE Standards are prepared by a Project Committee appointed specifically for the purpose of writing the Standard. The ProjectCommittee Chair and Vice-Chair must be members of ASHRAE; while other committee members may or may not be ASHRA
8、E 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 ASHRAE should be contacted for:a. interpretation of the contents of this Standard,b. participation in the next
9、 review of the Standard,c. offering constructive criticism for improving the Standard, ord. permission to reprint portions of the Standard.DISCLAIMERASHRAE uses its best efforts to promulgate Standards and Guidelines for the benefit of the public in light of available information andaccepted industr
10、y 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 ASHRAEs Standards or Guidelines or that any tests conducted under itsStandards or Guidelines will be nonhazardous or
11、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 testing for ratingpurposes,bysuggestingsafepracticesindesigningandinstallingequipment,byprovidingproperdefinitionsofthiseq
12、uipment,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 is completely voluntary.In referring to this Standard or Guideline and in marking of equipment and in advertising, n
13、o claim shall be made, either stated or implied,that the product has been approved by ASHRAE.ASHRAE Standards Project Committee 58CognizantTC:TC 8.11, Unitary and Room Air Conditioners and Heat PumpsSPLS Liaison: Janice PetersonRonald R. Huffman, Chair Richard F. SharpDavid M. Lapychak Mark W. Paque
14、tteW. Robert Nussdorfer David A. DidionGeorge J. Premaza Kenneth C. SchaibleJames P. Schafer L. Andrew Maciula*Denotes members of voting status when the document was approved for publicationASHRAE STANDARDS COMMITTEE 20132014William F. Walter, Chair David R. Conover Malcolm D. KnightRichard L. Hall,
15、 Vice-Chair John F. Dunlap Rick A. LarsonKarim Amrane James W. Earley, Jr. Mark P. ModeraJoseph R. Anderson Steven J. Emmerich Cyrus H. NasseriJames Dale Aswegan Julie M. Ferguson Janice C. PetersonCharles S. Barnaby Krishnan Gowri Heather L. PlattSteven F. Bruning Cecily M. Grzywacz Douglas T. Rein
16、dlJohn A. Clark Rita M. Harrold Julia A. Keen, BOD ExOWaller S. Clements Adam W. Hinge Thomas E. Werkema, Jr., CODebra H. KennoyStephanie C. Reiniche, Manager of StandardsANSI/ASHRAE 58-1986 (RA 2014)Method ofTesting for Rating Room Air Conditioner andPackagedTerminal Air Conditioner Heating Capacit
17、ySECTION PAGEForeword. 21 Purpose . 22 Scope. 23 Definitions 24 Classifications 25 Instruments 36 Apparatus 37 Test Procedures 78 Data to be Recorded 89 Calculation of Test Results 810 Test Report. 1011 References . 10Informative Appendix A, Bibliography.10NOTEApproved addenda, errata, or interpreta
18、tions for this standard can be downloaded free of charge from the ASHRAEWeb site at www.ashrae.org/technology. 2014 ASHRAE1791 Tullie Circle NE Atlanta, GA 30329 www.ashrae.org All rights reserved.ASHRAE is a registered trademark of the American Society of Heating, Refrigerating and Air-Conditioning
19、 Engineers, Inc.ANSI is a registered trademark of the American National Standards Institute.2 ANSI/ASHRAE Standard 58-1986 (RA 2014)(This foreword is not part of this standard. It is merelyinformative and does not contain requirements necessaryfor conformance to the standard. It has not been pro-ces
20、sed according to the ANSI requirements for a stan-dard and may contain material that has not been subjectto public review or a consensus process. Unresolvedobjectors on informative material are not offered theright to appeal at ASHRAE or ANSI.)FOREWORDThe 1986 standard was approved by the ASHRAE Sta
21、n-dards Committee on Oct. 25, 1986; by the ASHRAE Board ofDirectors on Dec. 12, 1986; and by the American NationalStandards Institute on Feb. 18, 1987.The standard was reaffirmed with minor editorialchanges by the Standards Committee on Oct. 18, 1988. TheASHRAE Board of Directors approved the reaffi
22、rmation onOct. 26, 1999 and the American National Standards Instituteon Oct. 26, 1999.This is a reaffirmation of Standard 58-1986 (RA 1999).This standard was prepared under the auspices of the AmericanHeating, Refrigerating and Air-Conditioning Engineers, Inc.(ASHRAE). It may be used, in whole or in
23、 part, by an associa-tion or government agency with due credit to ASHRAE. Adher-ence is strictly on a voluntary basis and merely in the interestsof obtaining uniform standards throughout the industry.This 2014 version of the reaffirmation has no updatesincluded other than a revised foreword and Stan
24、dards Com-mittee roster. A revised version of this standard will bereleased for public review in the near future.1. PURPOSEThe purpose of this standard is to prescribe test methods fordetermining the heating capacities and airflow quantities forroom air conditioners and packaged terminal air conditi
25、onersequipped with means for room heating.2. SCOPE2.1 This standard(a) establishes a uniform method of testing for obtainingrating data,(b) specifies test equipment for performing such tests,(c)specifiesdatarequiredandcalculationstobeused,and(d) lists and defines the terms used in testing.2.2 For pu
26、rposes of this standard, room air conditioners andpackaged terminal air conditioners are defined in Section 3,“Definitions.”2.3 This standard does not prescribe methods of testing toobtain cooling capacities of room air conditioners or pack-aged terminal air conditioners.3. DEFINITIONSaccuracy of re
27、adings: wherepercentagelimitsofreadingsareherein given, the reference basis is the magnitude of thegreater quantity measured and not the scale of the instrument.heat pump room air conditioner/heat pump packaged terminalair conditioner: a room air conditioner or packaged terminal airconditionerthatem
28、ploysameansforreversingthefunctionoftheindoor and outdoor coils such that the indoor coil becomes therefrigerating system condenser, allowing for heating of the air inthe conditioned space; similarly, the outdoor coil becomes theevaporator, utilizing outdoor air as a source of heat.heating capacity:
29、 the rate, expressed in Btu/h (W), at whichthe equipment adds heat to the air passing through it underspecified conditions of operation.indoor air-enthalpy test method: a procedure for determiningheating capacity in Btu/h (W) that involves measurement ofthe quality of air entering and leaving and th
30、e airflow rate andthe air-enthalpy change.indoor coil: theheatexchangerthatremovesheatfromoraddsheat to the conditioned space.outdoor coil: the heat exchanger that rejects heat to, orabsorbs heat from, a source external to the conditioned space.packaged terminal air conditioner: a factory-selected c
31、ombi-nation of heating and cooling components, assemblies, orsections, including a primary source of refrigeration anddehumidification, intended to serve an individual room orzone.qualification test: a procedure employed for verifying theaccuracy of the measuring techniques (temperature, airflowrate
32、s, duct heat calibration) employed in determination ofroom heating effect. This qualification procedure is periodi-cally employed in determining room heating effect.room air conditioner: an encased assembly designed as a unitprimarily for mounting in a window, through a wall, or as aconsole. It is d
33、esigned primarily to provide free delivery ofconditioned air to an enclosed space, room, or zone. Itincludes a primary source of refrigeration and dehumidifica-tion, means for air circulation, air cleaning, and heating, andmay include means for ventilation and humidification.standard air: airhavinga
34、densityof0.075lb/ft3(1.202kg/m3)and equivalent to dry air at a temperature of 70F (21.1C) anda barometric pressure of 29.92 in. Hg (101 kPa).standard barometric pressure: 29.92 in. Hg (101 kPa).4. CLASSIFICATIONS4.1 Two basic types of products are considered in this stan-dard, as seen in the title,
35、scope, and definitions: room air con-ditioners and packaged terminal air conditioners. For thepurpose of conciseness throughout the body of the text, thegeneral term “air conditioner” will be used.4.2 Two types of heating means commonly are employed inthese products: electrical resistance and heat p
36、ump (reversecycle). Additional means include steam and hot water.4.3 There are two basic methods of testing heat pump units:steady-state (no defrosting) and transient (with defrost cyclesrequired).4.4 There are two basic heating capacity calculations: thespecific heat method for no moisture change a
37、nd the enthalpymethod when moisture is added.ANSI/ASHRAE Standard 58-1986 (RA 2014) 35. INSTRUMENTS5.1 Temperature-Measuring Instruments5.1.1 Temperature measurement and temperature-mea-suring instruments shall be in accordance with the latest issueof ASHRAE Standard 41.1,1the standard measurementsg
38、uide.5.1.2 Instrument accuracy shall be within the followinglimits:(1) wet- and dry-bulb temperatures, 0.1F( 0.05C),except for those instruments employed specificallyfor the defrost period, 0.5F ( 0.28C);(2) water temperatures, 0.1F ( 0.05 C); and(3) all other temperatures, 0.5F ( 0.28C).5.1.3 Innoc
39、aseshallthesmallestscaledivisionofthetem-perature-measuring instrument exceed twice the specifiedaccuracy. For example, for the specified accuracy of 0.1F( 0.05C), the smallest scale division shall not exceed 0.2F(0.11C).5.1.4 When instrument accuracy closer than 0.5F (0.28C) is specified, the instr
40、ument shall be calibrated bycomparisonwithathermometerthathasaNationalInstituteofStandards and Technology1(NIST) certification in the rangeof use or a thermometer with certification by another nation-ally recognized calibration authority that is traceable to NIST.5.1.5 Wet-bulb temperature shall be
41、read only under con-ditions that ensure sufficient time has been allowed for evap-orative equilibrium to be attained. For temperatures in the air-conditioning comfort range, a velocity of 1000 fpm (5.0 m/s) 20% is recommended; at temperatures below 45F (7.2C),velocities on the order of 700 fpm (3.5
42、m/s) are acceptable.These recommended airstream velocities apply to tempera-ture-sensing elements of a size common to mercury-in-glassthermometers of approximately 0.25 in. (6.3 mm) diameter.For other sensing element sizes, velocities may be adjustedfrom the recommended figures directly as the diame
43、ter of thetemperature-sensing element employed. For wet-bulb deter-minations at temperatures below freezing, a recommendedmethod is to freeze a coating of ice approximately 0.02 in.(0.5 mm) thick directly on the bulb of the thermometer orother temperature-sensing element. Another recommendedmethod i
44、s the air sample reheat technique.5.1.6 Whenever possible, temperature-measuring instru-ments used to measure the change in temperature shall bearranged so that they can be readily interchanged betweeninlet and outlet positions to improve accuracy.5.1.7 Temperature of fluids within conduits shall be
45、 mea-sured by inserting the temperature-measuring instrumentdirectly into the fluid or into a well inserted into the fluid. Aglass thermometer should not be inserted directly into thefluid, unless it is calibrated for pressure effect.5.2 Pressure-Measuring Instruments5.2.1 Pressure measurements may
46、be made with any pres-sure-measuring instrument having the required accuracy(e.g., manometer, pressure transducer, etc.).5.2.2 Instrument accuracy shall be 0.005 in. water(1.25 Pa).5.2.3 Calibration shall be with respect to a dead-weighttester or by comparison to a mercury column or other refer-ence
47、 standard traceable to the NIST.a5.2.4 In no case shall the smallest scale division of thepressure-measuring instrument exceed two times the speci-fied accuracy.5.3 Airflow and External ResistanceMeasuring Instruments5.3.1 Static pressure across the nozzles, velocity pressureat nozzle throats, and e
48、xternal resistances shall be measuredwith manometers or other pressure-measuring instrumentsthatpermitmeasurementswithin0.005in.water(1.25Pa).The smallest scale division shall not exceed two times thespecified accuracy.5.3.2 Areas of nozzles shall be determined by measuringtheir diameters to an accu
49、racy of 0.2% in four placesapproximately 45 apart around the nozzle and in each of twoplanes through the nozzle throat, one at the outlet and theother in the straight section near the radius.5.4 Electricity-Measuring Instruments5.4.1 Electricity measurements shall be made with indi-cating or integrating instruments.5.4.2 Instruments used for measuring electricity inputshall be accurate to 0.5% of the quantity measured.5.5 Water Flow-Measuring InstrumentsVolumemeasurementsshallbemadewitheitherofthefollow-ing instruments having an
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