CSA C22 2 NO 120-2013 Refrigeration Equipment (Fourth Edition).pdf

1、C22.2 No. 120-13Refrigeration equipmentLegal Notice for StandardsCanadian Standards Association (operating as “CSA Group”) develops standards through a consensus standards development process approved by the Standards Council of Canada. This process brings together volunteers representing varied vie

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18、e ServiceC22.2 No. 120-13March 2013Title: Refrigeration equipmentTo register for e-mail notification about any updates to this publication go to shop.csa.ca click on CSA Update ServiceThe List ID that you will need to register for updates to this publication is 2422148.If you require assistance, ple

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20、prior permission of the publisher.Published in March 2013 by CSA Group A not-for-profit private sector organization 5060 Spectrum Way, Suite 100, Mississauga, Ontario, Canada L4W 5N6 To purchase standards and related publications, visit our Online Store at shop.csa.caor call toll-free 1-800-463-6727

21、 or 416-747-4044.TMA trade-mar k of the Canadian S tandards Association, operating as “CSA Group”Refrigeration equipmentC22.2 No. 120-13C22.2 No. 120-13Refrigeration equipmentMarch 2013 2013 CSA Group 1ContentsTechnical Committee on Consumer and Commercial Products 5Subcommittee on Household Applian

22、ces for Refrigeration 7Preface 91 Scope 102 Reference publications 113 Definitions 154 Construction 194.1 General 194.2 Mechanical strength 194.2.1 Enclosures 194.2.2 Enclosure impact test 194.2.3 Cabinet 194.2.4 Glass assemblies 204.3 Protection from fire hazard 204.3.1 Polymeric material 204.3.2 E

23、lectrical components 214.3.3 Separation from combustible material 214.4 Protection from shock hazard 224.5 Doors and covers of enclosures 234.6 Protection from mechanical hazards 244.7 Mechanical assembly 264.8 Safety of refrigerating system 294.9 Determination of maximum working pressures 294.9.1 N

24、ormal 294.9.2 Abnormal 304.9.3 Marking 304.10 Protection against excessive pressure 304.11 Pressure limiting devices 324.12 Water heating tanks 324.13 Pressurized product systems 334.14 Freezing chambers under pressure 334.15 Supply connections 334.15.1 General 334.15.2 Cord-connected equipment 344.

25、16 Permanently connected equipment 354.17 Field wiring terminals 354.18 Current-carrying parts 364.19 Strain relief (supply cord) 374.20 Bushings 374.21 Electrically operated valves and solenoids 37C22.2 No. 120-13Refrigeration equipmentMarch 2013 2013 CSA Group 24.22 Internal wiring 374.22.1 Genera

26、l 374.23 Types of wiring 384.23.1 General 384.23.2 Wiring means 394.23.3 Parallel-conductor appliance wiring material 394.23.4 Extra-low voltage Class 2 circuit wiring 394.23.5 Wiring for panels of walk-in coolers 394.23.6 Wiring to external accessories 394.23.7 Resistance type heater wire 404.23.8

27、Wiring subjected to periodic movement 404.23.9 Conductor size 404.23.10 Control circuits 404.24 Electrical insulation 424.25 Motors 424.25.1 General 424.25.2 Motor overheating and overload protection 424.25.3 Short circuit protection 444.26 Transformers and power supplies 454.27 Lighting equipment 4

28、54.27.1 Incandescent and electric discharge lighting equipment 454.27.2 LED lighting equipment 464.27.3 Incandescent lighting circuits 464.27.4 Electric-discharge lighting circuits 464.27.5 Ballasts 474.27.6 LED lighting 484.28 Capacitors 484.29 Switches and controls 494.30 Protection of water heate

29、rs 504.31 Heater elements 504.32 Electric defrost heaters 504.33 Electric ice cutting grid heaters 514.34 Electric crankcase heaters 514.35 Spacings 524.36 Separation of circuits 544.37 Grounding and bonding 554.38 Receptacles 554.39 Plumbing requirements 564.40 Refrigerant liquid pumps 565 Marking

30、576 Tests 616.1 General 616.1.1 Number of samples 616.1.2 Test voltage 616.1.3 Test frequency 616.1.4 Installation clearances 626.2 Conditions for normal load tests 62C22.2 No. 120-13Refrigeration equipmentMarch 2013 2013 CSA Group 36.2.1 Non-refrigerated equipment 626.2.2 Refrigerated equipment 626

31、.2.3 Drinking water coolers and beverage dispensers 636.2.4 Freezer dispensers for food and beverage products 656.2.5 Ice making machines 656.2.6 Milk coolers 656.2.7 Absorption-type refrigerators 666.3 Rating 666.4 Temperature (normal load) 676.5 Temperature (ballasts and wiring) 686.6 Temperature

32、(condensation wiring) 686.7 Temperature (defrost) 686.8 Insulation resistance (defrost heaters) 696.9 Leakage current 696.10 Dielectric strength 716.11 Temperature (abnormal operation) 716.11.1 Condenser fan failure 716.11.2 Condenser water failure 716.11.3 Manual-reset pressure control 716.11.4 Tes

33、t criteria 726.11.5 Test compliance 726.11.6 Electric air heater burnout test 726.11.7 Burnout testOther components 736.12 Control equipment 736.12.1 Overload 736.12.2 Endurance 746.13 Starting 756.14 Flexing 756.15 Cabinet strength 766.16 Impact test (enclosures) 776.17 Impact test (glass assemblie

34、s) 776.18 Rain test 786.19 Accelerated aging tests 796.19.1 Gaskets 796.20 Moisture absorption resistance 806.21 Printed circuit boards (abnormal) 816.22 Door latch release 816.23 Overflow 826.24 Strain relief (supply cord) 826.25 Pressure test for water heater tanks 836.25.1 Test requirements 836.2

35、5.2 Test procedure 836.26 Pressure tests 846.26.1 Pressurized product systems 846.26.2 Refrigerant-containing components 846.27 Limited short circuit (motor protective devices) 846.28 Short-circuit test for wiring 856.29 Stability test 856.30 Spill test 86C22.2 No. 120-13Refrigeration equipmentMarch

36、 2013 2013 CSA Group 46.31 Shelf strength test 876.31.6 Custom shelving 886.32 Component restraint test 89Annex A (Informative) Minimum design pressures 110Annex B (Informative) Manufacturing and production tests 113Annex C (Informative) Determination of minimum circuit ampacity (See Clause 5.5.2) 1

37、14Annex D (Informative) Refrigerant flammability parameters 115Annex E (Normative) Requirements for refrigerators and freezers employing a flammable refrigerant in the refrigerating system 116C22.2 No. 120-13Refrigeration equipmentMarch 2013 2013 CSA Group5Technical Committee on Consumer and Commerc

38、ial ProductsA. Milne 21st Olympiad Sales, Burlington, OntarioRepresenting General InterestsChairD. Mascarenhas Brampton, OntarioRepresenting General InterestsVice-ChairL. Letea CSA Group, Mississauga, OntarioProject ManagerRepresenting General InterestsR. Cleary The Home Depot Canada Inc., Toronto,

39、OntarioR.L. Hicks Mississauga, OntarioM.K. Timmings Oakville, OntarioA.Z. Tsisserev Stantec Consulting Ltd, Vancouver, British ColumbiaRepresenting ManufacturersJ.E. Evans Evans Regulatory Certification Consulting, Jasper, OntarioW. Hansen Trane Ingersoll Rand, La Crosse, Wisconsin, USAS. Lawrence C

40、isco Systems Video Technology Canada, Inc., Scarborough, OntarioG. Lundy IBM Canada Limited, Markham, OntarioR. Martel Electro-Federation Canada, Toronto, OntarioC22.2 No. 120-13Refrigeration equipmentMarch 2013 2013 CSA Group 6S. Michaud Thomas b) provide an explanation of circumstances surrounding

41、 the actual field condition; andc) where possible, phrase the request in such a way that a specific “yes” or “no” answer will address the issue.Committee interpretations are processed in accordance with the CSA Directives and guidelines governing standardization and are available on the Current Stan

42、dards Activities page at standardsactivities.csa.ca.5) This Standard is subject to periodic review, and suggestions for its improvement will be referred to the appropriate committee. To submit a proposal for change, please send the following information to inquiriescsagroup.org and include “Proposal

43、 for change” in the subject line:a) Standard designation (number);b) relevant clause, table, and/or figure number;c) wording of the proposed change; andd) rationale for the change.C22.2 No. 120-13Refrigeration equipmentMarch 2013 2013 CSA Group 10C22.2 No. 120-13Refrigeration equipment1 Scope1.1 Thi

44、s Standard applies to self-contained and remote refrigeration equipment, designed to be installed and used in accordance with the Canadian Electrical Code, Part I, for use in non-hazardous locations indoors or outdoors in commercial and business establishments.1.2 This Standard also applies to self-

45、contained, cord-connected equipment rated at not more than 250V with branch circuit protection rated at not more than 60A, and equipment intended for permanent connection rated at 600V and less, single-phase or three-phase.1.3 This Standard applies to refrigerated equipment used in commercial and bu

46、siness establishments that include refrigeration systems other than those that employ refrigerant motor-compressors and air- and water-cooled condensers, such as thermo-electric or absorption systems.1.4 This Standard applies toa) refrigerated equipment such as display cases, meat, dairy, or frozen

47、food cases, reach-in cabinets, and bottle type beverage coolers;b) self-service or illuminated refrigerators, freezers, and ice cream cabinets;c) walk-in coolers;d) equipment designed to be field-installed as part of a refrigeration system, such as remote display cases and unit coolers;e) equipment

48、designed to produce some degree of freezing of food or beverage mixtures and to dispense them at will from the equipment at the time of sale, such as ice cream makers;f) water coolers, pressure, bottle, or point-of-use type, free-standing or wall-mounted, having added features such as a means for he

49、ating water, or a refrigerated space;g) refrigerated beverage dispensers for use in commercial establishments, designed for free-standing use or for building into fixtures;h) coolers for raw milk intended for farm use, permanently-connected, of the bulk direct expansion ice bank type, having either a self-contained or remote condensing unit;i) ice makers that manufacture and harvest ice in cube, flake, or other readily usable form and that may or may not incorporate ice storage means;Note: This Standard does not apply to automatic ice-makers that a