1、Designation:F252005(Reapproved 2012)An American National StandardStandard Specification forReach-in Refrigerators,Freezers,Combination Refrigerator/Freezers,and Thaw Cabinets1This standard is issued under the fixed designation F2520;the number immediately following the designation indicates the year
2、 oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers the basic design and functionof tempe
3、rature regulated,continuous duty commercial,andmarine refrigerators,freezers,combination refrigerator/freezers and thaw cabinets.The equipment will be stationaryand of a vertical or horizontal type.1.2 Equipment covered under this specification may containa substance(or be manufactured with a substa
4、nce)that harmspublic health and environment by destroying ozone in theupper atmosphere.This specification does not purport toaddress environmental regulations.It is the responsibility ofthe user of this specification to comply with environmentalregulations.1.3 The values stated in inch-pound units a
5、re to be regardedas the standard.The values given in parentheses are forinformation only.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices a
6、nd determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2A167 Specification for Stainless and Heat-ResistingChromium-Nickel Steel Plate,Sheet,and StripB280 Specification for Seamless Copper Tube for Air Con-ditioning and Refrigeration Field Ser
7、viceD3951 Practice for Commercial PackagingF760 Specification for Food Service Equipment ManualsF1166 Practice for Human Engineering Design for MarineSystems,Equipment,and Facilities2.2 ANSI/UL Standards:3ANSI/UL 303 Refrigeration and Air-Conditioning Condens-ing and Compressor UnitsANSI/UL 471 Comm
8、ercial Refrigerators and FreezersANSI/UL 866 Outlet Boxes and Fittings for Use in Hazard-ous Locations,Class I,Groups A,B,C,and D and ClassII,Groups E,F,and GANSI/UL 969 UL Standard for Marking and Labeling Sys-tems2.3 NSF/ANSI International Standards:4NSF/ANSI 7 Food Service Refrigerators and Freez
9、ersNSF/ANSI 51 Plastic Materials and Components Used inFood Service2.4 ASHRAE Standard:5ASHRAE 15 Safety Code for Mechanical Refrigeration2.5 NFPA Standard:6NFPA 70 National Electrical Code,Article 500,HazardousLocations2.6 Canada National Standard/Canadian Standard:7CAN/CSA C22.2#120-M91 Refrigerat
10、ion Equipment2.7 Federal and Military Documents:8MIL-STD-167/1 Mechanical Vibrations of ShipboardEquipment(Type IEnvironmental and Type IIInternally Excited)MIL-STD-461 Requirements For the Control of Electromag-netic Interference Characteristics of Subsystems andEquipmentMIL-STD-1399/300 Interface
11、Standard For Shipboard Sys-tems Section 300A Electric Power,Alternating CurrentMIL-R-12323 Refrigerators and Related Equipment,Pack-aging and Packing1This specification is under the jurisdiction of ASTM Committee F26 on FoodService Equipment and is the direct responsibility of Subcommittee F26.03 on
12、Storage and Dispensing Equipment.Current edition approved May 1,2012.Published August 2012.Originallyapproved in 2005.Last previous edition approved in 2005 as F2520 05.DOI:10.1520/F2520-05R12.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at servi
13、ceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036.4Available from NSF International,P.O.Box 130140,789 N.Dixboro Rd.,AnnA
14、rbor,MI 48113-0140.5Available from American Society of Heating,Refrigerating,and Air-Conditioning Engineers,Inc.(ASHRAE),1791 Tullie Circle,NE,Atlanta,GA30329.6Available from National Fire Protection Association(NFPA),1 BatterymarchPark,Quincy,MA 02269-9101.7Available from Canadian Standards Associa
15、tion(CSA),178 Rexdale Blvd.,Toronto,ON M9W1R3,Canada.8Available from Standardization Documents Order Desk,DODSSP,Bldg.4,Section D,700 Robbins Ave.,Philadelphia,PA 19111-5098.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.Terminology3.1
16、 Definitions:3.1.1 ambient air temperaturetemperature of the air sur-rounding the exterior of the cabinet or machinery compart-ment.3.1.2 automatic defrostprocess where heat is automati-cally introduced into the cooling coils to dissipate any ice orfrost buildups on the coil.3.1.3 capacityterm that refers to the total cubic foot areaof the interior storage.3.1.4 condensing unitseach unit shall consist of acompressor,condenser,receiver(if required),fan,and motor.3.1.5 evaporator coils(forced air)
