UL 60335-2-24 (ND)-2017 National Differences For Household and Similar Electrical Appliances C Safety C Part 2-24 Particular Requirements for Refrigerating Appliances Ice-Cream App.pdf

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1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences ForHousehold and Similar Electrical Appliances Safety Part 2-24: Particular Requirements forRefrigerating Appliances, Ice-Cream Appliances and Ice-MakersUL COPYRIGHTED MATERI

2、AL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences ForHousehold and Similar Electrical Appliances Safety Part 2-24: Particular Requirements forRefrigerating Appliances, Ice-Cream Appliances and Ice-MakersSecond EditionEdition Date: April 28, 2017

3、This new edition of ANSI/UL 60335-2-24, the harmonized Standard for Household and SimilarElectrical Appliances Safety Part 2-24: Particular Requirements for Refrigerating Appliances,Ice-Cream Appliances and Ice-Makers, UL 60335-2-24, is based off of Edition 7.1 of IEC 60335-2-24.This document provid

4、es 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, stored in a retrieval system, ortransmitted in any form by any means, electronic, mechanical photocopying, recording, or ot

5、herwisewithout 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 warranties of merchantability or fitness for any purpose.In no event will UL be liable for any special, incidental, cons

6、equential, 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 document, even if UL or an authorized UL representative has been advisedof the possibility of such damage. In no event sh

7、all 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 Safety agree to defend, indemnify, and hold ULharmless from and against any loss, expense, liability, damage, claim, or ju

8、dgment (including reasonableattorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronicStandard on the purchasers computer system.Copyright 2017 Underwriters Laboratories Inc.APRIL 28, 2017NATIONAL DIFFERENCES FOR2UL COPYRIGHTED MATERIAL NOT AUTHORIZED F

9、OR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULPrefaceThis document provides a single listing of the technical National Differences included in the UL adoptionof the corresponding IEC standard.In its IEC-based standards, UL uses the notations indicated below to identify national di

10、fference 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 safety principles and requirements, elimination ofwhich would compromise safety for U.S. consumers and users of products.D2

11、- These are deviations based on safety practices. These are deviations for IEC requirements that maybe acceptable, but adopting the IEC requirements would require considerable retesting or redesign on themanufacturers part.DC - These are deviations based on the component standards and will not be de

12、leted until a particularcomponent standard is harmonized with the IEC component standard.DE - These are deviations based on editorial comments or corrections.DR - These are deviations based on the national regulatory requirements.Each national difference contains a description of what the national d

13、ifference 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 addition entails adding a complete new numbered clause, subclause, table, figure,or annex. Addition is not meant to include addin

14、g 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 replacement text.Modification / Modify - A modification is an altering of the existing base IEC text such as the addition,replaceme

15、nt or deletion of certain words or the replacement of an entire clause, subclause, table, figure,or annex of the base IEC text.APRIL 28, 2017 NATIONAL DIFFERENCES FOR 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences2DV.1 D

16、C Modification to add the following to Clause 2 of the Part 2:16 CFR Part 1500Hazardous Substances and Articles; Administration and Enforcement RegulationsANSI Z97.1Safety Glazing Materials Used In Buildings Safety Performance Specifications andMethods of TestASHRAE 15Safety Standard for Refrigerati

17、on SystemsASHRAE 34Designation and Safety Classification of RefrigerantsASTM B344Standard Specification for Drawn or Rolled Nickel-Chromium and Nickel-Chromium-IronAlloys for Electrical Heating ElementsASTM E162Standard Test Method for Surface Flammability of Materials Using a Radiant Heat EnergySou

18、rceCSA B52Mechanical Refrigeration CodeCSA C22.2 No. 0.3Test Methods for Electrical Wires and CablesIEC 60695-11-20Fire Hazard Testing Part 11-20: Test Flames 500 W Flame Test MethodUL 94Tests for Flammability of Plastic Materials for Parts in Devices and AppliancesUL 1441Coated Electrical SleevingU

19、L 1581Electrical Wire, Cables, and Flexible CordsUL 1694Tests for Flammability of Small Polymeric Component MaterialsAPRIL 28, 2017NATIONAL DIFFERENCES FOR4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL2DV.2 DC Modification to add the follow

20、ing to Clause 2 of the Part 2 (US only):16 CFR Part 1750Devices to Permit the Opening of Household Refrigerator Doors from the Inside3.109DV DR Modification of Clause 3.109 of the Part 2 as follows:Replace ISO 5149 with ASHRAE 34 or CSA B52.3.111DV DR Modification of Clause 3.111 of the Part 2 as fo

21、llows:Replace 60 I with 56,6I(2ft3).3.117DV DE Add the following definition to Clause 3 of the Part 2 as follows:ACCESSORY: An optional electrical device, such as an INCORPORATED ICE-MAKER, intended forinstallation in or connection to a refrigerator for the purpose of modifying orsupplementing the f

22、unctions of the refrigerator. It can be factory installed or intended forinstallation by the user or service personnel.3.118DV DE Add the following definition to Clause 3 of the Part 2 as follows:ELECTRICAL CONNECTION: The physical interface between two points in a circuit such as spadeterminals, pi

23、n terminals, micro switch contacts, relay contacts, timer contacts, crimpedconnections, and connections that are welded or soldered.3.119DV DE Add the following definition to Clause 3 of the Part 2 as follows:ICE DISPENSING SYSTEM: The parts of a refrigerator used in moving ice, including the motor,

24、auger, ice bucket, ICE-MAKER (where a broken part could be dispensed), and mechanicalparts used to move or modify ice.5.7DV D1 Modification of Clause 5.7 of the Part 2 by replacing the second paragraphand three temperatures for the various climatic classes as follows:For other appliances, tests spec

25、ified in Clauses 10, 11, 13 and Clause 19.103 are carriedout at an ambient temperature of 43 C 1 C (109,4 F 1,8 F).6.1DV.1 D1 Modification to replace Clause 6.1DV.1 of the Part 1 with the following:Class 0 and Class 0I appliances are not allowed.6.101DV D2 Deletion of Clause 6.101 of the Part 2:This

26、 clause of the Part 2 is not applicable.7.1DV.1 D2 Modification of Clause 7.1 of the Part 2 as follows:Delete the fourth dashed item of the first paragraph.APRIL 28, 2017 NATIONAL DIFFERENCES FOR 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM

27、UL7.1DV.2 D2 Modification of Clause 7.1 of the Part 2 by adding the following (US only):Appliances shall also be marked with the date of manufacture that will enable the productto be identified as being manufactured within a consecutive 3-month period. Thisinformation may be in code and shall be loc

28、ated on or near the nameplate. A date codemarking shall be such that it does not repeat in less than 10 years.7.1DV.3 D2 Modification of Clause 7.1 of the Part 2 by adding the following:If a manufacturer produces appliances at more than one factory, each unit shall have apermanent distinctive markin

29、g to identify it as the product of a particular factory.7.1DV.4 DR Modification of Clause 7.1 of the Part 2 by adding the following:7.1DV.4.1 The following markings, or the equivalent, shall be provided and shall bepermanent when a FLAMMABLE REFRIGERANT is used:a) DANGER Risk Of Fire Or Explosion. F

30、LAMMABLE REFRIGERANT Used. Do Not UseMechanical Devices To Defrost Refrigerator. Do Not Puncture Refrigerant Tubing.This marking shall be located on or near any EVAPORATORS that can be contacted bythe user.b) DANGER Risk Of Fire Or Explosion. FLAMMABLE REFRIGERANT Used. To BeRepaired Only By Trained

31、 Service Personnel. Do Not Puncture RefrigerantTubing. This marking shall be located near the machine compartment.c) CAUTION Risk Of Fire Or Explosion. FLAMMABLE REFRIGERANT Used. ConsultRepair Manual/Owners Guide Before Attempting To Service This Product. AllSafety Precautions Must be Followed. Thi

32、s marking shall be located near themachine compartment.d) CAUTION Risk Of Fire Or Explosion. Dispose Of Properly In AccordanceWith The Applicable Federal Or Local Regulations. FLAMMABLE REFRIGERANT Used.This marking shall be located on the exterior of the refrigerator.e) CAUTION Risk Of Fire Or Expl

33、osion Due To Puncture Of Refrigerant Tubing;Follow Handling Instructions Carefully. FLAMMABLE REFRIGERANT Used. This markingshall be located near all exposed refrigerant tubing.NOTE Wherever the word CAUTION is required, it may be substituted with the word WARNING.7.1DV.4.2 In the US, the markings o

34、f Clause 7.1DV.4.1 shall be in letters no less than6,4-mm (1/4-in) high.7.1DV.4.3 In Canada, the markings of Clause 7.1DV.4.1 shall be in letters no less than3,2-mm (1/8-in) high.APRIL 28, 2017NATIONAL DIFFERENCES FOR6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WIT

35、HOUT PERMISSION FROM UL7.1DV.4.4 For COMPRESSION-TYPE APPLIANCES which use FLAMMABLE REFRIGERANTS, the refrigerationtubing or other devices through which the refrigerant is intended to be serviced shall bepainted or colored red, Pantone Matching System (PMS) No. 185. This color shall bepresent at al

36、l places where service puncturing or otherwise creating an opening in therefrigerant circuit might be expected. In the case of a process tube on a compressor, thecolor mark shall extend at least 2,5 cm (1 in) from the compressor.7.1DV.5 DR Modification of Clause 7.1 of the Part 2 by adding the follo

37、wing:Permanently connected equipment shall be marked with the individual electrical loads, theminimum circuit ampacity, and the maximum current rating of the supply circuitovercurrent protection. The minimum circuit ampacity is equal to 125% of the highestmotor, heater, or compressor current rating

38、plus the sum of all other current ratings ofconcurrent loads. The maximum overcurrent protection is equal to 225% of the highestmotor or compressor current rating plus the sum of all other current ratings of concurrentloads.7.1DV.6 D2 Modification of Clause 7.1 of the Part 2 as follows:Replace the “

39、symbol “Caution: risk of fire” with “symbol ISO 7010 W021”7.102DV D1 Addition of Clauses 7.102DV.1 and 7.102DV.2 to the Part 2:7.102DV.1 A lock key shall be permanently marked with the word CAUTION and with thefollowing or equivalent statement: To Prevent A Child From Being Entrapped, Keep OutOf Rea

40、ch Of Children And Not In The Vicinity Of Freezer (Or Refrigerator).7.102DV.2 A marking calling attention to the notice of Clause 7.102DV.1 shall be placedover the key slot of the lock or immediately adjacent to it. This marking may be removable.7.103DV D1 Addition of the following to the Part 2:A c

41、hild entrapment warning statement shall be included in either the operating instructionsor in a use and care manual provided with each refrigerator and shall include the followingor equivalent wording:DANGER: Risk of child entrapment. Before you throw away your old refrigeratoror freezer:* Take off

42、the doors.* Leave the shelves in place so that children may not easily climb inside.7.104DV D2 Addition of the following to the Part 2:The appliance shall be visibly marked for proper operating CLEARANCES. This marking is notrequired when the unit has been evaluated and tested with zero CLEARANCES.A

43、PRIL 28, 2017 NATIONAL DIFFERENCES FOR 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL10.103DV DR Addition of Clauses 10.103DV.1 and 10.103DV.2 to the Part 2:10.103DV.1 For a cyclic ICE-MAKER, the marked current shall be based on the input c

44、urrentmeasured 5 min after the start of the third freezing cycle. With reference to the above, theharvest cycle of some types of ICE-MAKERS imposes a load that is greater than the loadmeasured during the freezing cycle. The harvest cycle load need not be indicated on thenameplate of the ICE-MAKER if

45、 it:a) Does not exceed 125% of the nameplate rating;b) Does not occur more than twice an hour; andc) Is not more than 5 min in duration.10.103DV.2 The harvest cycle shall not exceed the rating of the attachment plug on acord-connected unit or the minimum circuit ampacity required for a permanentlyco

46、nnected unit. For a non-cyclic ICE-MAKER, the marked current shall be based on the inputcurrent measured after1hofcontinuous operation.11.1DV D2 Modification of Clause 11.1 of the Part 2 by adding the following after thelast sentence:Winding temperatures of motor compressors are not required to be m

47、easured when thecase housing temperature (with a thermocouple at the most unfavorable location) does notexceed 150 C (302 F).11.8DV D2 Modification of Clause 11.8 of the Part 2 by replacing the sixth paragraphwith the following:Temperature rises shall not exceed the values given in Table 3 of the Pa

48、rt 1 reduced by 7 K.15.106DV D1 Addition of Clause 15.106DV.1 to the Part 2:15.106DV.1 Component washing test15.106DV.1.1 A lampholder, switch, or other electrical component shall be located so thatleakage current resulting from cleaning in and around food storage compartments of arefrigerator does

49、not exceed 0,5 mA.15.106DV.1.2 The appliance shall be isolated from the earth ground circuit bydisconnecting the PROTECTIVE EARTHING CONDUCTOR. The appliance shall be connected so thatthe component to be tested is on the ungrounded side of the supply. Control knobs,guards, panels, food storage components, and similar components that are located in thearea shall be cleaned, and components that are removable without the use of TOOLS shallbe removed. Lamps shall be left in place.APRIL 28, 2017NATIONAL DIFFERENCES