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Standards Council of Canada

Household and similar electrical appliances — Safety — Part 2-40: Particular requirements for electrical heat pumps, air-conditioners and dehumidifiers

Standards development organization: 

Canadian Standards Association (operating as CSA Group)

Contact info: 

Contact information

Work Program: 

View the CSA work program

Designation Number: 

CSA C22.2 NO. 60335-2-40:19

Standard Type: 

National Standard of Canada - Adoption of International Standard

Standard sub-Type: 

Bi-National

Standard Development Activity: 

Amendment Revision

ICS Code(s): 

  • 23.120

Status: 

  • Proceeding to development

SDO Comment period start date: 

2022/11/16

SDO Comment period end date: 

2022/12/07

Scope: 

This clause of Part 1 is replaced by the following.

This part of IEC 60335 deals with the safety of electric HEAT PUMPS, including SANITARY HOT WATER HEAT PUMPS, AIR CONDITIONERS, and DEHUMIDIFIERS incorporating motor-compressors and HYDRONIC FAN COILS UNITS, their maximum RATED VOLTAGES being not more than 250 V for single phase appliances and 600 V for all other appliances. PARTIAL UNITS are within the scope of this International Standard.

Appliances not intended for normal household use but which nevertheless may be a source of danger to the public, such as appliances intended to be used by laymen in shops, in light industry and on farms, are within the scope of this standard.

The appliances referenced above may consist of one or more factory-made assemblies. If provided in more than one assembly, the separate assemblies are to be used together, and the requirements are based on the use of matched assemblies.

NOTE 101 A definition of ‘motor-compressor’ is given in IEC 60335-2-34, which includes the statement that the term motor-compressor is used to designate either a hermetic motor-compressor or semi-hermetic motor-compressor.

NOTE 102 Requirements for refrigerating safety are covered by ISO 5149-1, ISO 5149-2, and ISO 5149-3. Requirements for containers intended for storage of the heated water included in SANITARY HOT WATER HEAT PUMPS are, in addition, covered by IEC 60335-2-21.

This standard does not take into account refrigerants other than group A1, A2L, A2 and A3 as defined by ISO 817 classification, A2L REFRIGERANTS are limited to those of a molar mass of more than or equal to 42 kg/kmol based on WCF as specified in ISO 817.

This standard specifies particular requirements for the use of FLAMMABLE REFRIGERANTS. Unless specifications are covered by this standard, including the annexes, requirements for refrigerating safety are covered by ISO 5149.

The parts of ISO 5149 of particular concern to this standard are as follows:

• ISO 5149-1:2014, Refrigerating systems and heat pumps – Safety and environmental requirements – Part 1: Definitions, classification and selection criteria.
• ISO 5149-2, Refrigerating systems and heat pumps – Safety and environmental requirements – Part 2: Design, construction, testing, marking and documentation;
• ISO 5149-3:2014, Refrigerating systems and heat pumps – Safety and environmental requirements – Part 3: Installation site.

SUPPLEMENTARY HEATERS, or a provision for their separate installation, are within the scope of this standard, but only heaters which are designed as a part of the appliance package, the controls being incorporated in the appliance.

NOTE 103 Attention is drawn to the fact that

• for appliances intended to be used in vehicles or on board ships or aircraft, additional requirements may be necessary;
• for appliances subjected to pressure, additional requirements may be necessary;
• in many countries, additional requirements are specified, for example, by the national health authorities responsible for the protection of labour and the national authorities responsible for storage, transportation, building constructions and installations.

NOTE 104 This standard does not apply to

• humidifiers intended for use with heating and cooling equipment (IEC 60335-2-88);
• appliances designed exclusively for industrial processing;
• appliances intended to be used in locations where special conditions prevail, such as the presence of a corrosive or explosive atmosphere (dust, vapour or gas).

1DV.1 DR Modification by replacing the second paragraph of Clause 1 as follows:

This part of IEC 60335 deals with the safety of electric heat pumps, including hot water heat pumps, air conditioners, dehumidifiers, and hydronic fan coils units, their maximum rated voltages being not more than 300 V for single phase appliances and 15 000 V for all other appliances. Partial units are within the scope of this International Standard.

1DV.2 D1 Modification of the sixth paragraph of this Part 2 by replacing with the following:

This standard does not take into account refrigerants other than refrigerant safety groups as defined by ISO 817 or ASHRAE 34 as follows:

a) A1; and
b) B1 (for use in appliances installed in machinery rooms as defined in accordance with ANSI/ASHRAE 15 (USA) or CSA B52 (Canada), or outdoors only); and
c) A2L, A2, and A3, refrigerants with a molar mass not less than 42 kg/kmol based on nominal composition.

1DV.3 DR Modification of the eighth paragraph of Clause 1 as follows:

Replace ISO 5149 with ANSI/ASHRAE 15 (USA) and CSA B52 (Canada).

1DV.4 DR Modification of Clause 1 of the Part 2 by adding the following paragraph:

All references to ISO 817 in this Part 2 also apply to ANSI/ASHRAE 34. ANSI/ASHRAE 34 shall take precedence over ISO 817.

1DV.5 D1 Modification of NOTE 104 of Clause 1 of the Part 2 by deleting the 2nd bullet point.

Project need: 

The intent of the project is to align with international requirements and produce NA harmonized requirements for Electrical Heat Pumps, Air-Conditioners and Dehumidifiers. The AMD project will address remaining technical changes that were not updated in the previous publication. This proposed Amendment is being developed at the request of Technical Harmonization Committee for Appliances for Air-Conditioning for Household and Similar Purposes. It will provide the industry with alignment of Canadian requirements with that of IEC for Electrical Heat Pumps, Air-Conditioners and Dehumidifiers.

Posted on: 

2022/11/08

Note: The information provided above was obtained by the Standards Council of Canada (SCC) and is provided as part of a centralized, transparent notification system for new standards development. The system allows SCC-accredited Standards Development Organizations (SDOs), and members of the public, to be informed of new work in Canadian standards development, and allows SCC-accredited SDOs to identify and resolve potential duplication of standards and effort.

Individual SDOs are responsible for the content and accuracy of the information presented here. The text is presented in the language in which it was provided to SCC.

​
 

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