DS/EN IEC 60335-2-40:2023

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

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 motorcompressor.*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 – Worst Case Formulation as specified in*ISO 817.