CSA C22 2 NO 117-1970 Room air conditioners (Second Edition General Instruction No 1 February 1974).pdf

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1、C22.2 No. 117-1970(reaffirmed 2012)Room air conditionersBlank pageGeneral Instruction No. 1C22.2 No. 117-1970February 1974Note: General Instructions for CSA Standards are now called Updates. Please contact CSA Information Products Sales or visit shop.csa.ca for information about the CSA Standards Up

2、date Service.Title: Room air conditioners originally published August 1970The following revisions have been formally approved.Revised Clauses 4.2.2.4, 4.4.2.3, and 6.16.2New NoneDeleted None Update your copy by inserting these revised pages.Keep the pages you remove for reference.C22.2 No. 117-1970

3、Room Air Conditioners The following revisions, covering Clauses 4.2.1.6, 4.2.2.4, and 6.19 and Figure 1, have been formally approved. Publication Date July 2007 . Clause 4.2.1.6 Revise Clause 4.2.1.6 to read as follows: 4.2.1.6 Enclosures or parts thereof shall be considered to comply with Clause 4.

4、2.1.5 provided that they comply with the flammability requirements for 5VA materials in accordance with CAN/CSA-C22.2 No. 0.17-00, Evaluation of Properties of Polymeric Materials. July 2007 Revision No. 7 C22.2 No. 117-1970 . Clause 4.2.2.4 Revise Clause 4.2.2.4 to read as follows: 4.2.2.4 Louvers o

5、r other openings in enclosures for electrical parts other than motors shall be located, constructed, or baffled so as to prevent the emission of flame or molten metal from the air conditioner, and from an individual enclosure within the air conditioner if such an emission could cause a fire hazard b

6、y igniting materials within the air conditioner. Note: A hazard due to ignition of materials within the air conditioner is considered to be unlikely if (a) the materials comply with the flammability requirements of Clause 4.2.1.6; (b) the materials are normally acceptable as electrical insulation of

7、 components complying with the applicable Part II Standard of the Canadian Electrical Code; or (c) materials other than those specified in (a) or (b) above are judged to be present in an insignificant amount. July 2007 Revision No. 8 C22.2 No. 117-1970 . Clause 6.19 Deleted July 2007 Revision No. 9

8、C22.2 No. 117-1970 . Figure 1 Deleted July 2007 Revision No. 10 C22.2 No. 117-1970 . C22.2 No. 117-1970 Room Air Conditioners The following revisions, covering Clauses 2.1, 4.5.7, and 5.4, have been formally approved. Publication Date September 2005 . Clause 2.1 Add the following definitions to Clau

9、se 2.1: Arc-fault circuit interrupter (AFCI) a device intended to mitigate the effects of arcing faults by functioning to de-energize the circuit when an arc fault is detected. Leakage-current detector-interrupter (LCDI) a device that senses leakage current flowing between or from the attached cord

10、conductors and interrupts the circuit at a predetermined level of leakage current. Note: LCDIs may be integrated into cord sets or power supply cords. September 2005 Revision No. 4 C22.2 No. 117-1970 . Clause 4.5 Add the following clause: 4.5.7 A cord-connected single-phase room air conditioner shal

11、l be provided with a factory-installed LCDI or AFCI protection to reduce the risk of fire caused by arcing faults in the power supply cord. The LCDI or AFCI shall de-energize all current-carrying parts when arcing faults are detected within the power supply cord, and shall be installed as an integra

12、l part of the attachment plug cap or located in the supply cord within 300 mm (12 in) of the attachment plug cap. September 2005 Revision No. 5 C22.2 No. 117-1970 . Clause 5 Add the following clause: 5.4 A cord-connected room air conditioner shall be marked to indicate that a damaged power supply co

13、rd shall be replaced with a new supply cord obtained from the product manufacturer and not repaired. September 2005 Revision No. 6 C22.2 No. 117-1970 . Clause 4.2.2.4 Revise Clause 4.2.2.4 to read as follows: 4.2.2.4 Louvers or other openings in enclosures for electrical parts other than motors shal

14、l be located, constructed, or baffled so as to prevent the emission of flame or molten metal from the air conditioner, and from an individual enclosure within the air conditioner if such an emission could cause a fire hazard by igniting materials within the air conditioner. NOTE: A hazard due to ign

15、ition of materials within the air conditioner is considered to be unlikely if: (a) The materials are self extinguishing when tested by a procedure such as described in Clause 6.19; (b) The materials are normally acceptable as electrical insulation of com- ponents complying with the applicable Standa

16、rd of Part II of the Code; or (c) Materials other than those specified in (a) or (b) above are judged to be present in an insignificant amount. - Publication Date February 28, 1974 Effective Date February 28, 1974 Revision No. I C22.2 No. 1171970 Clause 4.4.2.3 .- Revise Clause 4.4.2.3 to read as fo

17、llows: 4.4.2.3 Tubing used in the construction of refrigerant-containing parts such as an evaporator or condenser coil which is adequately protected by the inherent construction shall comply with the pressure test specified in Clause 6.16, and shall have a wall thickness not less than 0.016 inch, ex

18、cept that the minimum thickness requirement does not apply to coils of finned copper tubing which: (a) Are each subjected to a pressure test during manufacture at a pres- sure, for condenser coils, not less than 125 per cent of the maxi- mum pressure dveloped in the temperature test specified in Cla

19、use 6.5; and at a pressure, for evaporator coils, not less than 20 per cent of the test pressure specified in Clause 6.16; (b) Have inlet and outlet tube wall thickness of not less than 0.016 inch; (c) Have hairpin turns and return bends protected from damage dur- ing assembly and after installation

20、 in the air codaitioner. Publication Date February 28, 1974 Effective Date February 28, 1974 Revision No. 2 C22.2 No. 1171970 Clause 6.16.2 Add a second paragraph to Clause 6.162 as follows: Such parts that are made of finned copper tubing with a wall thickness less than 0.016 inch, as provided in C

21、lause 4.4.2.3, shall also be capable of withstanding without failure a pressure equal to three times the low side pressure developed in the abnormal temperature (fan motor failure) test specified in Clause 6.7, including the pressure which follows stopping of t1 compressor. Publication Date February

22、 28, 1974 Effective Date February 28, 1974 Revisio, IV.:. J C222 No. 1171970 CSA STANDARD C22.2 No. 1171970 ROOM AIR CONDITIONERS FORMING PART OF CANADIAN ELECTRICAL CODE. PART II SAFETY STANDARDS FOR ELECTRICAL EQUIPMENT PUILIS1UD. AUGUST. 1910 IT ThE CANADIAN STAIIDAADS ASSOCIATiON (INCORPORATED 1

23、919) 17$ I!XDAL! IOULEYARD REXOALE . OKTAAIO. CANADA DATE EFfECTIVE NOVEMIER 30. 1970 DATE. MANDATORY NOVEMIER 30. 1970 COPYRIGRT REGISTERED, CANADA. 1960 CSA CERTIFICATION The Canadian Standards Association provides certification services for manufacturers who, under licence from CSA, wish to use t

24、he appro- priate registered CSA Marks on certain products of their manufacture to indicate conformity with a CSA Standard. CSA Certification for a number of products is provided on a voluntary basis in the interest of maintaining agreed-upon standards of quality, performance, interchangeability, or

25、safety and, where appropriate, it forms the basis for accep- tance by inspection authorities responsible for enforcement of regulations. Where feasible, programmes will be developed for additional products for which certification is desired by producers, consumers, or other interests. A complimentar

26、y copy of the complete list of CSA Publications will be provided on request. ROOM AIR CONDITIONERS 3 COMMITTEE ON CANADIAN ELECTRICAL CODE PART II D. C. KING (Chairman) Canadian Standards Association, Rexdale (Representing Canadian Standards Association) J. E. LEEMING (Alternate) Canadian Standards

27、Association, Rexdale D. M. MANS0N Canadian Standards Association, Rexdale M. POLANSEY Canadian Standards Association, Rexdale (Representing Canadian Electrical Association) I. M. CLARK Canadian Electrical Association, Montreal (Representing National Research Council) W. G. HOYLE National Research Co

28、uncil of Canada, Ottawa (Representing Inspection Authorities) K. L. BELLAMY Ontario Hydro, Toronto H. B. LURZE (Alternate) Ontario Hydro, Toronto G. MONTAMBEAULT Quebec Department of Labour and Manpower, Quebec J. ROIJSSEATJ (Alternate) Quebec Department of Labour and Manpower, Montreal (Representin

29、g Canadian Electrical Manufacturers Association) F. ASHWORTR Canada Wire and Cable Company Limited, Toronto K. M. COLLINS Crouse-Hinds Co. of Canada, Limited, Scarborough K. R. Dtn.pay Canadian General Electric Company Limited, Toronto K. V. KNUDSEN Pyle-National (Canada) Limited, Clarkson G. W. LAW

30、RENCE Northern Electric Company Limited, Montreal E. W. MOODIE Square D Company Canada Limited, Toronto (Representing Electronic Industries Association of Canada) A. AINLAY Lake Engineering Company Limited, Scarborough (Representing The Canadian Electrical Contractors Association) E. PEARL Pearl and

31、 Russell Limited, Weston H. M. ROBINSON (Secretary non-voting) Canadian Standards Association, Rexdale ASSOCIATE MEMBERS D. S. MARTIN Underwriters Laboratories of Canada, Scarborough (Representing American National Standards Institute) H. P. MICHENER National Electrical Manufacturers Association, Ne

32、w York G. C. ROWE Department of Industry, Ottawa E. WALLACH British Standards Institution, Hemel Hempstead, Hertfordshire, England SUBCOMMIrIEE ON C22.2 NO. 117-1970 M. POLANSKY (Chairman) Canadian Standards Association, Rexdale K. R. DUNPRY Canadian General Electric Company Limited, Toronto V. GOEB

33、EL Addison Products Company, Addison, Michigan G. A. HARRoWER Department of Public Works, Vancouver L. J. PEER Canadian Standards Association, Rexdale F. S. TOPER Carrier Air Conditioning Co., Syracuse R. VIRGIL WRALEY Whirlpool Corporation, Evansville, Indiana J. A. WEnt Chrysler Airtemp Canada Ltd

34、., Brampton N. W. WOODS Keeprite Products Ltd., Brantford J. L. FAIR (Secretary) Canadian Standards Association, Rexdale 4 CSA STANDARD C22.2 No. 117 CONTENTS Page List of Members of Committee on CE Code, Part II 3 Preface 6 Reference Publications 6 STANDARD 1. Scope 7 2. Definitions 7 3. General Re

35、quirements 7 4. Construction 7 4.1 General 7 4.2 Enclosures 7 4.2.1 Strength and Rigidity 7 4.2.2 Openings in Enclosures 10 4.3 Protection Against Rusting 10 4.4 Mechanical Assembly 10 4.4.1 General 10 4.4.2 Refrigerant-Containing Parts. 10 4.4.3 Pressure Relief Devices 11 4.5 Supply Connections 11

36、4.5.4 Attachment Plug Caps; 11 4.5.5 Strain Relief 11 4.6 Bushings for Leads and Cords 12 4.7 Terminal Parts 12 4.8 Current-Carrying Parts 12 4.9 Wiring 12 4.9.1 General 12 4.9.2 Internal Wiring 12 4.10 Electrical Insulation 13 4.11 Motors 13 4.11.1 Motor Enclosures 13 4.11.2 Motor Overload Protecti

37、on 14 4.11.3 Short Circuit Protection 14 4.12 Spacings 14 4.13 Capacitors 15 4.14 Starting Relays 15 4.15 Electric Heaters 16 4.16 Switches 16 4.17 Grounding 16 4.18 Input 16 ROOM AIR CONDITIONERS Page 5. Marking . 16 6. Tests 17 6.1 Samples 17 6.2 Sequence of Tests 17 6.3 Rated Conditions (Frequenc

38、y) 17 6.4 Rating 17 6.4.1 Cooling 17 6.4.2 Heating 17 6.5 Temperature (Normal) 18 6.6 Dielectric Strength 19 6.7 Temperature (Abnormal) 19 6.8 Locked Rotor-Compressor Motors 19 6.9 Locked Rotor-High-Impedance Protected Fan Motors 20 6.10 Short-Circuit 21 6.11 Switches 21 6.11.1 Overload 21 6.11.2 En

39、durance 22 6.12 Heater 22 6.12.1 Normal Temperature 22 6.12.2 Burnout 22 6.13 Starting 23 6.14 Insulation Resistance 23 6.15 Rain 23 6.16 Pressure Tests 23 6.17 Short Circuit Test for Wiring 25 6.18 Short Circuit Test for Motor Protective Devices 26 6.19 Flame Test for Enclosures of Live Parts 26 6.

40、19.3 Test Procedure 26 6.19.4 Compliance 27 6 CSA STANDARD C22.2 No. 117 PREFACE This is the second edition of No. 117 of a series of Standards issued by the Canadian Standards Association under Part Ii of the Canadian Electrical Code. It supersedes the first edition published in 1957. This second e

41、dition includes revisions previously published and a number which have been approved but not published heretofore. Since the adoption of this Standard in 1960 the variety in equipment in the room air conditioner category has emphasized the need to extend the original scope, to make more specific req

42、uirements for the enclosures, supply cords, switches, grounding, etc., and to amend the test requirements so as to reflect changes in practice recognized in other Standards. The changes will produce a more up-to-date Standard and remove some ambiguities which now exist, without requiring any changes

43、 to equipment which is now approved. This Standard was prepared under the jurisdiction of the Committee on CE Code, Part II, which is subsidiary to the Committee on CE Code, Part I, and was formally approved by these Committees. REXDALE, AUGUST, 1970 NoTE: For general information regarding the Stand

44、ards of the Canadian Electrical Code, Part II, see the preface of the latest issue of GSA Standard C22.2 No.0, Definitions and General Requirements. In order to keep abreast of progress in the electrical industry, these Standards are subject to periodic review. Suggestions for improvement addressed

45、to Canadian Standards Association, 178 Rexdal.e Boulevard, Rexdale 603, Ontario, Canada, will be welcomed at all times. They will be recorded and in due course, brought to the attention of the CSA Com- mittee on Canadian Electrical Code, Part II. REFERENCE PUBLICATJ ONS This publication makes refere

46、nce to the following and the year dates shown indicate the latest issues available at the time of printing; CSA Standards B35.21963, Binding Head Screws; C22.11969, Canadian Electrical Code, Part I; C22.2 No. 01960, Definitions and General Require- ments; C22.2 No. 141966, Industrial Control Equipme

47、nt for Use in Ordinary (Non-hazardous) Locations; C22.2 No. 211960, Cord Sets and Power Supply Cords; C22.2 No. 421959, Receptacles, Plugs and Similar Wiring Devices; C22.2 No. 771970, Motors with Inherent Overheating Protection. 7 C22.2 No. 1171970 ROOM AIR CONDITIONERS 1. SCOPE 1.1 This Standard a

48、pplies to cord-connected room air conditioners rated not more than 250 volts, single phase, with a rated capacity not over 36,000 Btu/hr, designed to be used in accordance with the . Ruies of Canadian Electrical Code, Part I. 1.2 This Standard applies to self-contained air-cooled window, or console or built-in-wall type room air conditioners, which have hermetic-type condensing units and which are intended to be installed in the conditioned room, usu