GB 4706.32-2012 Household and similar electrical appliances—Safety—Particular requirements for electrical heat pumps, air-conditioners and dehumidifiers
Household and similar electrical appliances - Safety -
Particular requirements for electrical heat pumps, air-conditioners and dehumidifiers
1 Scope
This clause of GB 4706.1-2005 is replaced by the following:
This part of GB 4706 specifies the safety of electrical heat pumps, air conditioners and dehumidifiers for household and similar purposes.
This part is applicable to electrical heat pumps, including sanitary hot water heat pumps, air conditioners, and dehumidifiers incorporating motor-compressors and hydronic room fan coils, their maximum rated voltages being not more than 250V for single phase appliances and 600V for all other appliances.
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 part.
This part also applies to electrical heat pumps, air conditioners and dehumidifiers containing flammable refrigerant. Flammable refrigerants are defined in 33.121.
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 technical requirements of this standard are based on the use of matched assemblies.
Note 1: A definition of 'motor-compressor' is given in GB 4706.17, which includes the statement that the term motor-compressor is be used to designate either a hermetic motor-compressor or semi-hermetic motor- compressor.
Note 2: Requirements for refrigeration safety are covered by ISO 5149, and requirements for containers intended for storage of the heated water included in sanitary hot water heat pumps are, in addition, covered by GB 4706.12.
This part does not take into account chemicals other than group A1, A2, or A3 as defined by 3.121.
Note 3: This part specifies particular requirements for the use of flammable refrigerants. Unless specifications are covered by this part, including the annexes, requirements for refrigerating safety are covered by ISO 5149.
The sections and clauses in ISO 5149:1993 of particular concern to this part are as follows:
——Section 3: Design and construction of equipment applies to all appliances and systems.
——Section 4: Requirements for utilization applies to appliances and systems which are for “similar electrical appliances”, i.e. commercial and light industrial.
——Section 5: Operating procedures applies to appliances and systems which are for “similar electrical appliances”, i.e. commercial and light industrial.
Supplementary heaters, or a provision for their separate installation, are within the scope of this part, but only heaters which are designed as a part of the appliance package, the controls being incorporated in the appliance.
Note 4: 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 5: This part 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).
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 2423.18-2000 Environmental testing for electric and electronic products - Part 2: Tests - Test Kb: Salt mist, cyclic (sodium chloride solution) (idt IEC 60068-2-52:1996)
GB 4706.17-2010 Household and similar electrical appliances - Safety - Particular requirements for motor-compressors (IEC 60335-2-34:2009, IDT)
GB 4208-2008 Degrees of protection provided by enclosure (IP code) (IEC 60529:2001, IDT)
GB/T 16842-2008 Protection of persons and equipment by enclosures - Probe for verification (IEC 61032:1997, IDT)
GB 19212.1-2008 Safety of power transformers, power supplies, reactors and similar products - Part 1: General requirements and tests (IEC 61558-1:2005, IDT)
