Standards Development

Scope

This clause of Part 1 is replaced by the following.This part of IEC 60335 deals with the safety of electric parking air conditioners for cooling and/or heating driver’s  and habitation  compartments only when the vehicle is stationary, with electrical input power being not greater than 4kW. Their maximum rated voltage being not more than 300 V for single phase appliances and battery operated appliances  between 12VDC and 48V DC.The appliances referenced above can consist of one or more factory-made assemblies. If provided in more than one assembly, the separate assemblies are used together, and the requirements are based on the use of matched assemblies.Through the whole document, the term “appliance” refers to “parking air conditioner”.This standard does not cover the requirements for use of the appliance when the vehicle is not stationary.NOTE 101 If the manufacturer intends to allow operation of  the parking air conditioner when the vehicle is in motion, additional requirements can apply.NOTE 102  Different from the automobile air conditioner as an integral part of an OEM manufacturer, the parking air conditioner does not correspond to the specific model of the vehicle, and the product can be applied to multiple types of vehicles.NOTE 103 The parking  air conditioner  can be  factory-installed or installed aftermarket .NOTE 104 Dual supply appliances, either mains-supplied or battery-operated, are regarded as battery-operated appliances when operated in the battery mode.This standard does not take into account refrigerants other than group A1, A2L, A2 and A3 as defined by ISO 817. Flammable 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.As far as practical, this standard deals with common hazards presented by appliances that are encountered in normal use and assumes that installation, servicing, decommissioning, and disposal are safely handled by competent persons and accidental release of refrigerants is avoided. However, it does not prescribe the criteria to ensure competence of persons during installation, servicing and disposal. Safety requirements during disposal are neither specified in this standard.NOTE 105 Annex HH provides informative requirements on competence of persons. Criteria for competence of personnel for the purpose of certification schemes can be found in ISO 22712.Unless specifications are covered by this standard, including the annexes, requirements for refrigerating safety are covered by:– ISO 5149-1:2014, ISO 5149-1:2014/AMD1:2015, and ISO 5149-1:2014/AMD2:2021,– ISO 5149-2:2014 and ISO 5149-2:2014/AMD1:2020,– ISO 5149-3:2014 and ISO 5149-3:2014/AMD1:2021.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 of which are incorporated in the appliance.NOTE 106 Attention is drawn to the fact that• 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, vehicle cabin constructions and installations.NOTE 107  This standard does not apply to• 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).