1、ANSI/ASHRAE Standard 137-2013 (RA 2017)(Reaffirmation of ANSI/ASHRAE Standard 137-2013)Methods of Testing for Efficiency ofSpace-Conditioning/Water-HeatingAppliances that Include aDesuperheater Water HeaterApproved by ASHRAE on February 8, 2017, and by the American National Standards Institute on Fe
2、bruary 8, 2017.ASHRAE Standards are scheduled to be updated on a five-year cycle; the date following the Standard number is the year ofASHRAE 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,
3、 NE, Atlanta, GA 30329-2305. E-mail: ordersashrae.org. Fax: 678-539-2129. Telephone: 404-636-8400 (worldwide) or toll free 1-800-527-4723 (for orders in US and Canada). For reprintpermission, go to www.ashrae.org/permissions. 2017 ASHRAE ISSN 1041-2336SPECIAL NOTEThis American National Standard (ANS
4、) is a national voluntary consensus Standard developed under the auspices of ASHRAE. Consensus is definedby the American National Standards Institute (ANSI), of which ASHRAE is a member and which has approved this Standard as an ANS, as“substantial agreement reached by directly and materially affect
5、ed interest categories. This signifies the concurrence of more than a simple majority,but not necessarily unanimity. Consensus requires that all views and objections be considered, and that an effort be made toward their resolution.”Compliance with this Standard is voluntary until and unless a legal
6、 jurisdiction makes compliance mandatory 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 S
7、tandard. The ProjectCommittee 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 Project Committees. The S
8、enior Manager of Standards of ASHRAE should be contacted fora. 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.DISCLAIMERASHRAE uses
9、its best efforts to promulgate Standards and Guidelines for the benefit of the public in light of available information and acceptedindustry practices. However, ASHRAE does not guarantee, certify, or assure the safety or performance of any products, components, or systemstested, installed, or operat
10、ed in accordance with ASHRAEs Standards or Guidelines or that any tests conducted under its Standards or Guidelineswill 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 u
11、niform method of testing for rating purposes, bysuggesting safe practices in designing and installing equipment, by providing proper definitions of this equipment, and by providing other informationthat may serve to guide the industry. The creation of ASHRAE Standards and Guidelines is determined by
12、 the need for them, and conformanceto them 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.ASHRAE Standards Project Committee 137Cognizant
13、TC: 8.11, Unitary and Room Air Conditioners and Heat Pumps* Denotes members of voting status when the document was approved for publicationJoseph A. Pietsch*, Chair Brian Philip Dougherty* Robert M. LittleCharles E. Bullock* Ben A. Elkin* Nance C. Lovvorn*John W. Clukey Victor W. Goldschmidt* Edwin
14、A. Nordstrom*Robert E. Cook* Bradford F. Harris Wayne R. Reedy*James G. Crawford John M. Hill Herbert C. SkarbekRichard W. Dixon* Marshall B. Hunt Bodh R. SuberwahlPiotr Domanski Kerrin A. Kirkpatrick* Thomas I. WetheringtonASHRAE STANDARDS COMMITTEE 20162017Rita M. Harrold, Chair Michael W. Gallagh
15、er Cyrus H. NasseriSteven J. Emmerich, Vice-Chair Walter T. Grondzik David RobinJames D. Aswegan Vinod P. Gupta Peter SimmondsNiels Bidstrup Susanna S. Hanson Dennis A. StankeDonald M. Brundage Roger L. Hedrick Wayne H. Stoppelmoor, Jr.Drury B. Crawley Rick M. Heiden Jack H. ZarourJohn F. Dunlap, Sr
16、inivas Katipamula William F. Walter, BOD ExOJames W. Earley, Jr. Cesar L. Lim Patricia Graef, COKeith I. Emerson Arsen K. MelikovJulie M. Ferguson R. Lee Millies, Jr.Stephanie C. Reiniche, Senior Manager of StandardsCONTENTSANSI/ASHRAE Standard 137-2013 (RA 2017),Methods of Testing for Efficiency of
17、 Space-Conditioning/Water-Heating Appliancesthat Include a Desuperheater Water HeaterSECTION PAGEForeword. 21 Purpose 22 Scope . 23 Definitions. 24 Nomenclature . 35 Classifications. 76 Requirements . 77 Instrumentation Specifications 78 Apparatus . 89 Methods of Test 1810 Test Procedure . 2011 Calc
18、ulations 3012 References . 37Informative Annex ASeasonal Annual Energy Consumption and Operation Costsfor the Combined Appliance 37Informative Annex BSeasonal and Annual Energy Consumption and Operating Costs for the SeparateHeat Pump (or Air Conditioner) and Electric Water Heater of the Combined Ap
19、pliance. 39Informative Annex CSeasonal and Annual Energy and Cost Credits for the Combined Appliance 40Informative Annex DCalculation of an Equivalent Seasonal Energy Efficiency Ratio and anEquivalent Heating Seasonal Performance Factor or an Equivalent Energy Factor. 41Informative Annex EDeterminat
20、ion of Seasonal Combined Performance Factors for Installations Usinga Separate Heat Pump (Air Conditioner) and an Electric Water Heater . 43NOTEApproved addenda, errata, or interpretations for this standard can be downloaded free of charge from the ASHRAEWeb site at www.ashrae.org/technology. 2017 A
21、SHRAE1791 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 Engineers, Inc.ANSI is a registered trademark of the American National Standards Institute.2 ANSI/ASHRAE Standard 13
22、7-2013 (RA 2017)(This foreword is not a part of this standard. It ismerely informative and does not contain requirementsnecessary for conformance to the standard. It has notbeen processed according to the ANSI requirementsfor a standard and may contain material that has notbeen subject to public rev
23、iew or a consensus process.) FOREWORDThis is a reaffirmation of Standard 137-2013. This stan-dard was prepared under the auspices of ASHRAE. It may beused in whole or in part by an association or governmentagency with due credit to ASHRAE. Adherence is strictly ona voluntary basis and merely in the
24、interests of obtaininguniform guidelines throughout the industry. This version ofthe reaffirmation has no changes.1. PURPOSE1.1 This standard provides test methods and calculationprocedures for establishing the efficiencies of space-con-ditioning/water-heating appliances having refrigerant-to-water
25、desuperheaters.1.2 The procedures may be used as a basis for establish-ing efficiency ratings for such equipment and for estimat-ing annual energy consumption.2. SCOPEThis standard covers electric, air-to-air, space-condi-tioning appliances that include a refrigerant-to-water desu-perheater and have
26、 rated cooling capacities of less than65,000 Btu/h.3. DEFINITIONSactive system: a combined appliance that uses a pump tocirculate potable water, either at a varying or a fixed rate,between the desuperheater and the water heater.appliance: often used in this standard as a one-wordsubstitute for combi
27、ned appliance, which is defined bined appliance: an assembly consisting of a heatpump or air conditioner, a desuperheater, a water heater,and, if required, a potable water pump; the assemblyprovides space conditioning and domestic hot bined performance factorcooling season (CPFcs ):the seasonal coef
28、ficient of performance of the combinedappliance when used to meet both the space-cooling anddomestic water-heating loads that occur during the space-cooling season. The quantity is bined performance factorheating season (CPFhs ):the seasonal coefficient of performance of the combinedappliance when u
29、sed to meet both the space-heating anddomestic water-heating loads that occur during the space-heating season. The quantity is bined performance factorwater-heating-only season(CPFws ): the seasonal coefficient of performance of thecombined appliance when used to meet the domestic water-heating load
30、 that occurs during the water-heating-only season(i.e., days during the year when no space conditioning isprovided). For combined appliances having a desuperheater,all water heating during this season is performed by the waterheater resistive element(s). The quantity is bined space-cooling and water
31、-heating (COOL the refrigerant-side additions and modifications thatare needed to couple the components are completed when thesystem is installed in the field. For active and passive systemswith field-installed desuperheaters, the water piping thatconnects the desuperheater and the water heater may
32、becompleted either at the factory or when the system is installedin the field.heating seasonal performance factor (HSPF): for thespace-heating season, the ratio of the total space heatingdelivered to the total electrical energy input if the combinedappliance operated exclusively in a space-heating-o
33、nly(HEAT) mode. The quantity is expressed in units of Btu/W h.insert system: a combined appliance where refrigeranttubing is inserted directly into the water heater, usuallythrough one of the ports on the water heater; the insertedtubing is the desuperheater.ANSI/ASHRAE Standard 137-2013 (RA 2017) 3
34、manufacturer: the supplier who provides the rating of thecombined appliance.passive system: a combined appliance that does not use awater pump but relies on thermosiphon flow through thedesuperheater and water heater; generally the desuperheater ismounted on the side of the water heater or at an ele
35、vation lowerthan the water heater.piping: when used alone, refers strictly to water piping.seasonal energy efficiency ratio (SEER): for the coolingseason, the ratio of the total heat removed from the condi-tioned space to the total electrical energy input if the combinedappliance operated exclusivel
36、y in a space-cooling-only(COOL) mode. The quantity is expressed in units of Btu/Wh.simulated-use test: a laboratory test where water draws areimposed on the water heater while the combined applianceprovides space conditioning and desuperheater water heatingover specified periods. The test is used to
37、 determine a repre-sentative inlet water temperature to the desuperheater for useduring tests of the water-heating mode and a laboratory basisfor the water heating contributed by the desuperheater versusthe water heater resistive elements.space-cooling-only (COOL) mode: an operating mode thatoccurs
38、during space cooling when either the desuperheaterwater pump has automatically cycled off or the rate of heattransfer to the domestic water has become negligible. Withrespect to seasonal performance calculations, this modeoccurs when the water-heating load is satisfied but a space-cooling load remai
39、ns. space-heating-only (HEAT) mode: an operating mode thatoccurs during space heating when either the desuperheaterwater pump has automatically cycled off or the rate of heattransfer to the domestic water has become negligible. Withrespect to seasonal performance calculations, this modeoccurs when t
40、he water-heating load is satisfied but a space-heating load remains or, if applicable, when operating belowthe combined (HEAT standard air conditioners(heat pumps) shall be used when testing a field-installed desu-perheater where an air conditioner (heat pump) is neithersupplied nor prescribed by th
41、e manufacturer. standard heat pump: a heat pump meeting the specificationsgiven in Section 8.2.2; standard heat pumps (air conditioners)shall be used when testing a field-installed desuperheaterwhere a heat pump (air conditioner) is neither supplied norprescribed by the manufacturer. standard water
42、heater: an electric water heater meeting thespecifications given in Section 8.2.3; a standard water heatershall be used when a water heater is neither supplied norprescribed by the manufacturer. standard water pump: a water pump meeting the specifica-tions given in Section 8.2.4; a standard water pu
43、mp shall beused when testing active systems where a water pump isneither supplied nor prescribed by the manufacturer.test condition tolerance: the maximum permissible vari-ation between the average of a measured quantity and thedesired test condition specified in the standard.test operating toleranc
44、e: the maximum amount that adesignated measured quantity shall vary (i.e, maximumminimum) during the entire or a specified interval of a test.test rooms: the two environmental chambers where allcomponents of the combined appliance are installed andtested; one chamber is used to maintain specified in
45、doorambient conditions, while the second chamber is used tomaintain specified outdoor ambient conditions.tubing: when used alone, refers strictly to refrigerant tubing.Type A water-heating-mode tests: tests that are conductedusing the Type A test method and setup described inSection 10.7.1.Type B wa
46、ter-heating-mode tests: tests that are conductedusing the Type B test method and setup described inSection 10.7.2.water heater: an electric storage tank water heater.water-heating-mode tests: a series of laboratory tests fordetermining an average space-conditioning capacity, anaverage desuperheater
47、water-heating capacity, and an aver-age electrical power input as a function of outdoor tempera-ture for each combined space-conditioning and water-heating operating mode.4. NOMENCLATUREBL (tj) = the building space-conditioning load atoutdoor temperature tj, Btu/h C = 0.77, an experience factor that
48、 improves theagreement between the measured andcalculated space-heating loadCD= the cyclic degradation factor determined asdescribed in ANSI/ASHRAE Standard 116;1one value of CDshall be determined fromspace-cooling-only tests, and a second valueof CDshall be determined from space-heating-only tests
49、cp,w= specific heat of water, Btu/lbm F CLH = cooling load hours, hCOPh(t)= coefficient of performance when operating ina HEAT mode at outdoor temperature tCPFcs= the seasonal combined performance factor forthe space-cooling and water-heating seasonCPFhs= the seasonal combined performance factor forthe space-heating and water-heating seasonCPFws= the seasonal combined performance factor forthe water-heating-only seasonCSH = cooling season hours, hDHR = the design heating requirement used withi
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