IEC TS 63542:2024

The International Electrotechnical Commission (IEC) released the first version of the standard IEC TS 63542:2024 for combustible refrigerant monitoring systems on August 13, 2024. IEC TS 63542: 2024 is applicable to

 refrigerant detection systems that comply with the IEC 60335 series standards in appliances using flammable refrigerants.

The relevant standards of the IEC 60335 series include:

·IEC 60335-2-40: Special requirements for heat pumps, air conditioners, and dehumidifiers

·IEC 60335-2-89: Special requirements for commercial refrigeration equipment and ice makers with integrated or remote refrigerant units or motor compressors

·IEC 60335-2-104: Special requirements for appliances for recovering and/or recycling refrigerants from air conditioning and refrigeration equipment

·IEC 60335-2-118: Special requirements for professional ice cream machines

The testing system is mainly aimed at addressing global climate change and peak carbon neutrality. Countries and regions such as Europe, the United States, and Australia have introduced relevant regulations and policies 

prohibiting high global warming potential (GWP) refrigerants. Starting to develop and produce low GWP combustible refrigerant products represented by R32, R290, R600a, and R1234yf for enterprises. However, the use of these 

flammable refrigerants increases the risk of product flammability and explosiveness. For safety reasons, when the charging amount of combustible refrigerant in air conditioning exceeds a certain range, IEC 60335-2-40: Annex LL takes the

 lead in providing testing requirements for combustible refrigerant monitoring systems