1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences ForHousehold and Similar Electrical Appliances Safety Part 2-89: Particular Requirements forCommercial Refrigerating Appliances with an Incorporated or Remote Refrigerant Uni
2、t orCompressorUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences ForHousehold and Similar Electrical Appliances Safety Part 2-89: Particular Requirements forCommercial Refrigerating Appliances with an Incorporated or Remote R
3、efrigerant Unit or CompressorFirst EditionEdition Date: September 29, 2017This First edition of ANSI/UL 60335-2-89, the harmonized Standard for Household and SimilarElectrical Appliances Safety Part 2-89: Particular Requirements for Commercial RefrigeratingAppliances with an Incorporated or Remote R
4、efrigerant Unit or Compressor, is based off ofEdition 2 of IEC 60335-2-89 and its Amendment No. 1.This document provides a single listing of the National Differences included in the UL adoption ofthe corresponding IEC standard.All rights reserved. No part of this publication may be reproduced, store
5、d in a retrieval system, ortransmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwisewithout prior permission of UL.UL provides this standards document as is without warranty of any kind, either expressed or implied,including but not limited to, the implied wa
6、rranties of merchantability or fitness for any purpose.In no event will UL be liable for any special, incidental, consequential, indirect or similar damages,including loss of profits, lost savings, loss of data, or any other damages arising out of the use of or theinability to use this standards doc
7、ument, even if UL or an authorized UL representative has been advisedof the possibility of such damage. In no event shall ULs liability for any damage ever exceed the pricepaid for this standards document, regardless of the form of the claim.Users of the electronic versions of ULs Standards for Safe
8、ty agree to defend, indemnify, and hold ULharmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonableattorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronicStandard on the purchasers computer system.Copyri
9、ght 2017 Underwriters Laboratories Inc.SEPTEMBER 29, 2017NATIONAL DIFFERENCES FOR2UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULPrefaceThis document provides a single listing of the technical National Differences included in the UL adoptiono
10、f the corresponding IEC standard.In its IEC-based standards, UL uses the notations indicated below to identify national difference type, andthese types are additionally noted in this document. The standard may not use all types of thesedeviations.D1 - These are deviations which are based on basic sa
11、fety principles and requirements, elimination ofwhich would compromise safety for U.S. consumers and users of products.D2 - These are deviations based on safety practices. These are deviations for IEC requirements that maybe acceptable, but adopting the IEC requirements would require considerable re
12、testing or redesign on themanufacturers part.DC - These are deviations based on the component standards and will not be deleted until a particularcomponent standard is harmonized with the IEC component standard.DE - These are deviations based on editorial comments or corrections.DR - These are devia
13、tions based on the national regulatory requirements.Each national difference contains a description of what the national difference entails. Typically one of thefollowing words is used to explain how the text of the national difference is to be applied to the base IECtext:Addition / Add - An additio
14、n entails adding a complete new numbered clause, subclause, table, figure,or annex. Addition is not meant to include adding select words to the base IEC text.Deletion / Delete - A deletion entails complete deletion of an entire numbered clause, subclause, table,figure, or annex without any replaceme
15、nt text.Modification / Modify - A modification is an altering of the existing base IEC text such as the addition,replacement or deletion of certain words or the replacement of an entire clause, subclause, table, figure,or annex of the base IEC text.SEPTEMBER 29, 2017 NATIONAL DIFFERENCES FOR 3UL COP
16、YRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences1DV.1 D2 Modification to replace the second paragraph in Clause 1 with the following:This Standard specifies safety requirements for electrically operated commercialrefrigerating ap
17、pliances that have an incorporated compressor or that are supplied in twounits for assembly as a single appliance in accordance with the manufacturersinstructions (split system) and intended for use in accordance with: CSA C22.1, Canadian Electrical Code (CE Code) Part I, in Canada; NFPA 70, Nationa
18、l Electrical Code (NEC), in the United States.1DV.2 D2 Modification to add the following after the second paragraph:This standard also contains the requirements for: commercial refrigerators and freezers for use in fuel dispensing facilities(Annex 101.DVD); factory assembled walk in coolers (Annex 1
19、01.DVE); refrigerating units (Annex 101.DVF); PARTIAL UNITS (Annex 101.DVG); and dispensing units (Annex 101.DVH).2DV DR Modification of Clause 2 to add the following normative references:Any reference to International Standards that have been adopted as National Standards ofCanada and/or the USA, o
20、r are adopted subsequent to the publication of this standard,shall be replaced by the relevant National Standard of Canada and/or the USA.Where reference is made to CSA Group or UL publications, such reference shall beconsidered to refer to the latest edition and all amendments published to that edi
21、tion. ThisStandard refers to the following publications, and the years shown indicate the latesteditions available at the time of printing:CSA GroupCSA B51,Boiler, Pressure Vessel, and Pressure Piping CodeCSA B52,Mechanical Refrigeration CodeCSA C22.1,Canadian Electrical Code, Part ISEPTEMBER 29, 20
22、17NATIONAL DIFFERENCES FOR4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCSA C22.2 No. 94.2,Enclosures for electrical equipment, environmental considerationsCSA C22.2 No. 120,Refrigeration EquipmentCSA C22.2 No. 140.3,Refrigerant-containing
23、components for use in electrical equipmentCAN/CSA-C22.2 No. 60335-1,Safety of Household and Similar Appliances Part 1: General RequirementsCAN/CSA-C22.2 No. 60335-2-34,Household and similar electrical appliances Safety Part 2-34: Particular requirementsfor motorcompressorsULUL 50EEnclosures for Elec
24、trical Equipment, Environmental ConsiderationsUL 207Refrigerant-Containing Components and Accessories, NonelectricalUL 471Commercial Refrigerators and FreezersUL 60335-1Household and Similar Electrical Appliances Safety Part 1: General RequirementsUL 60335-2-34Household and Similar Electrical Applia
25、nces Safety Part 2-34: Particular Requirementsfor MotorcompressorsANSI/ASHRAE (American National Standards Institute/American Society of Heating,Refrigerating and Air-Conditioning Engineers)ANSI/ASHRAE 15,Safety Standard for Refrigeration SystemsANSI/ASHRAE 34,Designation and Safety Classification o
26、f RefrigerantsANSI/NFPA (American National Standards Institute/National Fire Prevention Association)ANSI/NFPA 30A,Code for Motor Fuel Dispensing Facilities and Repair GaragesANSI/NFPA 70,National Electrical CodeSEPTEMBER 29, 2017 NATIONAL DIFFERENCES FOR 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR F
27、URTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULASME (American Society of Engineers)ASME, Unfired Pressure Vessel CodeIEC (International Electrotechnical Commission)IEC 60068-2-52Environmental testing Part 2: Tests Test Kb: Salt mist, cyclic (sodium, chloride solution)IEC 60335-2-75Hous
28、ehold and similar electrical appliances Safety Part 2-75: Particular requirementsfor commercial dispensing appliances and vending machinesIEC 60695-11-20Fire hazard testing Part 11-20: Test flames 500 W flame test methodsISO (International Organization for Standardization)ISO 7010Graphical symbols S
29、afety colours and safety signs Registered safety signs3.104DV DE Modification by adding the following notes:NOTE 1DV: In North America, the above described refrigerant unit is referred to as a CONDENSING UNIT. (SeeAnnex 101.DVG).NOTE 2DV: The term REFRIGERANT UNIT should not be confused with a REFRI
30、GERATING UNIT as described in3.113DV and Annex 101.DVF.3.112DV DR Add the following definition to Clause 3 of the Part 2:PARTIAL UNITS a remote condensing (or condenser) unit or remote evaporator (orevaporating) unit which is part of a total connected assembly of a commercial refrigerationsystem whe
31、re not all assemblies that create the complete refrigeration system arespecified by the manufacturer.NOTE: Partial units are defined and evaluated for safety as stand-alone assemblies per the requirements of Annex101.DVG.3.113DV DR Add the following definition to Clause 3 of the Part 2:REFRIGERATING
32、 UNIT factory assembled unit for performing the complete refrigeration cycle(compressing gas, condensation or gas cooling, and evaporation) comprising refrigerantcompressor(s) with motors, condensers or GAS COOLERS, liquid receivers, interconnectionpipe work, and ancillary equipment, all mounted on
33、a common base with a singleenclosure. A REFRIGERATING UNIT is a packaged system that is mounted on the enclosure to becooled, such as a factory assembled walk in cooler.NOTE: The term REFRIGERANT UNIT (3.104) should not be confused with a REFRIGERATING UNIT as describedin this clause and Annex 101.D
34、VF.SEPTEMBER 29, 2017NATIONAL DIFFERENCES FOR6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL3.114DV DR Add the following definition to Clause 3 of the Part 2:LCDI (LEAKAGE CURRENT DETECTION INTERRUPTER) a device provided in a power supply co
35、rd thatsenses leakage current flowing between or from the integral cord conductors andinterrupts the circuit at a predetermined level of leakage current.3.115DV DR Add the following definition to Clause 3 of the Part 2:CASCADE SYSTEM a refrigeration system that incorporates two or more independentva
36、por-compressor refrigeration cycles in series. This is done to acquire low temperaturesthat might not be readily achieved with a single refrigeration cycle.3.116DV DR Add the following definition to Clause 3 of the Part 2:PRESSURE REGULATING RELIEF VALVE similar to a pressure relief valve, except sp
37、ecificallyintended for use with refrigeration systems utilizing carbon dioxide (R744) as therefrigerant in a secondary loop or CASCADE SYSTEM. The pressure relief setting of this valve isalways lower than the relief setting of a pressure relief valve. This valve can open andre-close many times durin
38、g the life of the system.3.117DV DR Add the following definition to Clause 3 of the Part 2:START TO DISCHARGE PRESSURE the pressure at which a relief valve begins to discharge;typically, the pressure where the first bubbles can be seen when a valve is immersed inwater.3.118DV DR Add the following de
39、finition to Clause 3 of the Part 2:PRESSURE VESSEL a closed vessel, used for containing, storing, distributing, transferring,distilling, processing, or otherwise handling any gas, vapour, or liquid under pressure andas further defined in CSA B52 and ANSI/ASHRAE 15.3.119DV DR Add the following defini
40、tion to Clause 3 of the Part 2:MOTOR FUEL DISPENSING FACILITY that portion of a property where motor fuels are stored anddispensed from fixed equipment into the fuel tanks of motor vehicles or marine craft orinto containers, including all equipment used in connection therewith. The areasurrounding a
41、 fuel dispenser in an outdoor motor fuel dispensing facility extending up 450mm (18 in) above grade level and 6 m (20 ft) horizontally in all directions from thedispenser enclosure is considered to be a location where flammable or combustible gasand/or liquids can be present in combustible concentra
42、tions as noted in NFPA 30A.3.120DV DR Add the following definition to Clause 3 of the Part 2:FACTORY ASSEMBLED WALK-IN COOLER an enclosed walk-in cabinet that is cooled by aREFRIGERATING UNIT or integral refrigerating system that is completely assembled and shippedfrom the factory as one assembly.3.
43、121DV DR Add the following definition to Clause 3 of the Part 2:INTEGRAL REFRIGERATING SYSTEM the necessary equipment for performing the completerefrigeration cycle (compressing gas, condensation or gas cooling, and evaporation)comprising refrigerant compressor(s) with motors, condensers or GAS COOL
44、ERS, liquidSEPTEMBER 29, 2017 NATIONAL DIFFERENCES FOR 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULreceivers, interconnection pipe work, and ancillary equipment. The components needed toperform these functions are incorporated into the de
45、sign on the walk-in cooler and neednot be mounted on a single base plate or within a single enclosure.3.122DV DR Add the following definition to Clause 3 of the Part 2:BEVERAGE DISPENSERS equipment comprising means for performing one or more of thefunctions of cooling, mixing, carbonating, and dispe
46、nsing of beverages, and intended tobe used in commercial establishments.6.2DV D1 Modification by adding the following to Clause 6.2 of the Part 1:Appliances or parts of appliances intended for outdoor use shall be at least IPX4.NOTE 1DV: Additionally, other standards, CSA C22.2 No. 94.2/UL 50E, may
47、be used for outdoor use as determinedby the AHJ.7.1DV.1 DR Modification of the Part 2 to add the following dashed items after the firstdashed item after “Addition”: total input current (cord connected appliances) manufacturing date or date code and location if the product is produced in more thanone
48、 location refrigerant number in accordance with ANSI/ASHRAE 34 ISO 817 markings for permanently connected appliances: motor ratings (FLA) minimum circuit ampacity (MCA) motor compressor ratings (RLA and LRA) rating of over current protective device branch circuit selection current (BCSC) (if RLA exc
49、eeds 64% of MCC) all other individual loads marked in amps7.1DV.2 DE Modification of the Part 2 by adding the following below the dashed itemsfollowing “Addition”:Load markings may be in watts or amps.See Annex 101.DVB for examples of marking calculations.Suitable for Outdoor Use” if required by the AHJ.SEPTEMBER 29, 2017NATIONAL DIFFERENCES FOR8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL7.1DV.3 DR Modification of the Part 2 by addin
