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UL 60335-2-40-2025【PDF原文+中文翻译版】
英文原文标题：
UL Standard for Safety Household and Similar Electrical Appliances– Safety– Part 2-40: Particular Requirements for Electrical Heat Pumps, Air-Conditioners and Dehumidifiers
中文翻译标题：
家用和类似用途电器的安全 第 2-40 部分：电热泵、空调器和除湿机的特殊安全要求
Fourth Edition; Reprint with revisions through and including October 31, 2025
standard by Underwriters Laboratories , 12/15/2022
LANGUAGES: English+Chinese【英文原文+中文翻译】
Historical Editions: UL 60335-2-40 (2022), UL 60335-2-40 (2019), UL 60335-2-40 (2017), UL 60335-2-40 (2012), UL 60335-2-40 (2012)
Description
SAME AS CSA C22.2 NO 60335-2-40 & IEC 60335-2-40
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.
This part of CSA C22.2 No. 60335-2-40/UL 60335-2-40 deals with the safety of
• electric HEAT PUMPS, including HOT WATER HEAT PUMPS,
• AIR CONDITIONERS,
• DEHUMIDIFIERS incorporating motor-compressors as well as without motor-compressors,
• HYDRONIC FAN COILS UNITS, and
• CENTRAL WARM AIR FURNACES and ADD-ON ELECTRIC HEAT KITS,
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 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 – Worst Case Formulation as specified in ISO 817.
This standard does not take into account refrigerants other than refrigerant safety groups as defined by ISO 817 or ANSI/ASHRAE 34 as follows:
a) A1;
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.
The parts of ANSI/ASHRAE 15 (USA) and CSA B52 (Canada) 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 for cooling a product, process, or equipment;
• 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).
All references to ISO 817 in this Part 2 also apply to ANSI/ASHRAE 34. ANSI/ASHRAE 34 shall take precedence over ISO 817.
All references to supplementary heaters in this Part 2 also apply to CENTRAL WARM AIR FURNACES and ADD-ON ELECTRIC HEAT KITs.
NOTE 105DV This standard does not apply to electric duct heaters, which are covered by UL 1996 and CSA C22.2 No. 155.
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