CSA C22 2 NO 236-2015 Heating and cooling equipment (Fifth Edition).pdf

1、C22.2 No. 236-15Heating and cooling 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 vari

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18、 Update ServiceC22.2 No. 236-15July 2015Title: Heating and cooling 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 2423422 .If you require ass

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20、entJuly 31, 2015ANSI/UL 1995-2015Commitment for AmendmentsThis standard is issued jointly by the Canadian Standards Association (operating as CSA Group) andUnderwriters Laboratories Incorporated (UL). Comments or proposals for revisions on any part of thestandard may be submitted to CSA Group or UL

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24、 related publications, visit CSA Groups Online Store atshop.csa.ca or call toll-free 1-800-463-6727 or 416-747-4044.Copyright 2015 Underwriters Laboratories Inc.ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standardshould be altered in any way. All of ULs

25、 Standards and all copyrights, ownerships, and rights regardingthose Standards shall remain the sole and exclusive property of UL.This ANSI/UL Standard for Safety consists of the Fifth Edition. The most recent designation of ANSI/UL1995 as an American National Standard (ANSI) occurred on July 30, 20

26、15. ANSI approval for astandard does not include the Cover Page, Transmittal Pages, Title Page (front and back), or thePreface. The National Difference Page and IEC Foreword are also excluded from the ANSI approval ofIEC-based standards.The Department of Defense (DoD) has adopted UL 1995 on March 9,

27、 1992. The publication of revisedpages or a new edition of this Standard will not invalidate the DoD adoption.Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time.Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative Standards

28、Development System (CSDS) at http:/.To purchase UL Standards, visit Comm 2000 at http:/m- call toll-free 1-888-853-3503.CONTENTSPreface .71 Scope .92 Definitions 113 Reference publications .183.9 Attachment plugs, receptacles, connectors, and terminals 193.10 Controls .203.11 Cords, cables, and inte

29、rnal wiring 243.12 Light sources and associated components 253.13 Marking and labeling systems 253.14 Power supplies .253.15 Printed wiring boards .253.16 Switches 263.17 Transformers 264 Installation and operating instructions 26CONSTRUCTION5 Enclosures 286 Thickness of sheet metal enclosures for u

30、ninsulated live parts 337 Openings in enclosures .368 Enclosures, doors, and covers .399 Accessibility of parts .4010 Assembly 4111 Mechanical protection .4212 Outdoor use equipment 4413 Enclosures, outdoor use .4514 Field wiring connections, outdoor use equipment .4615 Mechanical assembly field ass

31、embly 4616 Auxiliary devices 4717 Connection to power supply 4818 Thermal insulation and air filters 5119 Terminal parts and leads for field wiring connections 5220 Internal wiring 5721 Separation of circuits 6222 Electrical insulation .6323 Motors .6424 Grounding and bonding 6925 Mounting of compon

32、ents .7126 Switches and controllers .7127 Transformers .7428 Capacitors .7629 Electric crankcase heaters .7730 Electric heaters .7731 Receptacles 8032 Control circuits .8133 Spacings 8434 Refrigerant, hot water, and steam coils 8735 Condensing and compressor units employing flammable refrigerants. 9

33、436 Heat pump water heating and heat recovery equipment .94JULY 31, 2015 CSA C22.2 NO. 236-15 UL 1995 337 Power supplies .9538 Components and subsystems of solar photovoltaic systems .9539 Photovoltaic system grounding .9640 Photovoltaic system ground fault protection 9641 Photovoltaic system overcu

34、rrent protection .9642 Photovoltaic system disconnection means .97UNIT MARKINGS43 General 9844 Equipment markings 9845 Other markings 108TESTS46 General test parameters 11147 Input test .12548 Temperature operation test without any supplementary heating means .12549 Temperature operation testswith h

35、ot water or steam heating .12650 Cooling operation testtemperature and pressure 12651 Heating operation test temperature and pressure 12752 Abnormal temperature and pressure tests refrigerant heat only 12753 Electric heater tests 12854 Abnormal temperature and pressure tests 13155 Backup protection

36、tests .13356 Fan delay test duct-connected downflow and horizontal units .13457 Control system failure test 13458 Fan motor failure test 13559 Motors for use with wave chopping solid-state speed controls .13560 Condenser water failure test 13661 Dielectric voltagewithstand test .13762 Condensate dra

37、in blockage test .13863 Loading test .13864 Limited short-circuit test 13965 Transformer burnout test 14066 Transformer overload test .14067 Rain test 14168 Accelerated aging tests .14469 Impact test 14670 Strength tests .14771 Fatigue test analysis .14772 Rupture member tests 15073 Fusible plug tes

38、t .15074 Regulating relief valve endurance test 15075 Leakage current test cord-connected products .15176 Starting test .15477 Strain relief .15478 Power supply cords 15479 Heat pump water heating and heat recovery equipment 15580 Ultraviolet light exposure test 15781 Water exposure and immersion te

39、st 15782 Heat pump pool heaters 15783 Flexing test .158JULY 31, 2015CSA C22.2 NO. 236-15 UL 19954MANUFACTURING AND PRODUCTION TESTS84 Knockout security test 15985 Pressure tests for leakage and strength 15986 Production fatigue tests 16187 Production line dielectric voltage-withstand tests .16188 Pr

40、oduction line grounding continuity test 16189 Ultraviolet radiation exposure test .16189.1 Resistance to UV-C radiation .16189.2 Ultraviolet (UV) irradiance test 16290 Controls end product test parameters 16290.1 General 16290.2 Auxiliary controls 16390.3 Operating controls (regulating controls) 163

41、90.4 Protective controls (limiting controls) .16590.5 Controls using a temperature sensing device .166CSA, UL AND OTHER STANDARDS AND CODES91 Standards for components 16792 Other Standards and codes .177SUPPLEMENT SA - REQUIREMENTS FOR DUCT MOUNTED UV LAMPS SYSTEMS WHENEMPLOYED IN COMBINATION WITH A

42、IR CONDITIONING AND HEATING SYSTEMS PRESENTLYCOVERED BY UL 1995/CSA No. 236.SA1 Scope 179SA2 Definitions .179SA3 Reference publications .179SA4 General .179SA5 Installation and operating instructions .180SA6 Enclosures 180SA7 Openings in enclosures .180SA8 Enclosures, doors, and covers .180SA9 Acces

43、sibility of parts (UV Barriers) .180SA10 Field assembly .181SA11 Connection to power supply 182SA12 Materials in duct system .182SA13 Resistance to moisture 182SA14 Leakage current test 183SA15 Elevated temperature testing 183SA16 Resistance to UV radiation 183SA17 Ultraviolet (UV) irradiance test 1

44、83SA18 Marking: .184SA19 Evaluation reports: 185ANNEX A (Informative)Marking TranslationsJULY 31, 2015 CSA C22.2 NO. 236-15 UL 1995 5ANNEX B (Informative)Hot, Flaming Oil Test and Molten PVC and Copper TestB1 General 187B2 Hot flaming oil 187B3 Molten PVC and copper 187JULY 31, 2015CSA C22.2 NO. 236

45、-15 UL 19956PrefaceThis is the harmonized CSA Group and UL standard for Heating and Cooling Equipment. It is the fifth edition of CSA C22.2 No. 236 and the fifth edition of UL 1995. This edition of CSA C22.2 No. 236 and UL 1995 supersedes the previous editions published in 1995, 1990, 2005 and 2011.

46、This harmonized standard was prepared by the CSA Group and Underwriters Laboratories Inc. (UL). Theefforts and support of the heating and cooling equipment industry, the Air Conditioning and RefrigerationInstitute (ARI), and the Heating, Refrigerating, and Air Conditioning Institute of Canada (HRAI)

47、 aregratefully acknowledged.This Standard is considered suitable for use for conformity assessment within the stated scope of theStandard.This Standard was reviewed by the CSA Subcommittee on Appliances for Air-Conditioning for Householdand Similar Purposes, under the jurisdiction of the CSA Technic

48、al Committee on Consumer andCommercial Products and the CSA Strategic Steering Committee on the Requirements for ElectricalSafety, and has been formally approved by the CSA Technical Committees. It was also reviewed by theUL Standards Technical Panel 1995 and processed according to the method of dev

49、elopment, revision,and implementation of UL standards for safety.This Standard has been approved as a National Standard of the U.S.A. by the American NationalStandards Institute (ANSI).Application of StandardWhere reference is made to a specific number of specimens to be tested, the specified number is to beconsidered a minimum quantity.Note: Although the intended primary application of this standard is stated in its scope, it is important to note that it remainsthe responsibility of the