IEC 60335-2-40:2013（E）涉及电热泵的安全性，包括卫生热水热泵、空调和包含电机压缩机和循环室风机盘管的除湿机，单相电器的最大额定电压不超过250 V，所有其他电器的最大额定电压不超过600 V。 不用于正常家庭使用但可能对公众造成危险的电器，如用于商店、轻工业和农场的非专业人员使用的电器，属于本标准的范围。本标准也适用于含有易燃制冷剂的电动热泵、空调器和除湿机。易燃制冷剂的定义见3.121。上面提到的器具可以由一个或多个工厂制造的组件组成。如果在多于一个组件中提供，则单独的组件将一起使用，并且要求基于匹配组件的使用。本标准不考虑ANSI/ASHRAE 34[ISO 817]分类定义的A1、A2或A3组以外的化学品。本标准规定了使用易燃制冷剂的特殊要求。除非本标准（包括附件）涵盖了规格，否则ISO 5149涵盖了制冷安全要求。这第五版取消并取代了2002年出版的第四版，它是修正案1(2005)，修正案2(2005)和勘误1(2006)。它构成技术修订。本版与第四版相比，主要变化如下: -3.127和3.128增加了新的定义； -5.10现在指定用于测试的制冷剂管路的长度； -7.1改变了易燃制冷剂的标记要求； -8.15增加了明确测试期间安装面板位置的要求； -11.2.1检测方法的澄清； -19(整个条款)全部替换； -21.2增加了运输过程中振动考虑的新覆盖范围； -22.46增加了PEC的澄清； -22.118增加了使用易燃制冷剂时在室内使用机械连接器的承保范围； -32使第1部的本条适用； -附件FF2.4计算体积（V）的修订计算； -附件FF2.5修订易燃制冷剂气体的容许浓度； -附件GG8增加了新的覆盖范围； -附件HH增加了资料性附件。 关键词:热泵、空调、除湿机、易燃制冷剂 本出版物应与IEC 60335-1:20 10一起阅读。

IEC 60335-2-40:2013(E) deals with the safety of electric 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 250 V for single phase appliances and 600 V 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 standard. This standard also applies to electric heat pumps, air conditioners and dehumidifiers containing flammable refrigerant. Flammable refrigerants are defined in 3.121. 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 requirements are based on the use of matched assemblies. This standard does not take into account chemicals other than group A1, A2, or A3 as defined by ANSI/ASHRAE 34 [ISO 817] classification. This standard specifies particular requirements for the use of flammable refrigerants. Unless specifications are covered by this standard, including the annexes, requirements for refrigerating safety are covered by ISO 5149. This fifth edition cancels and replaces the fourth edition published in 2002, it's Amendment 1 (2005), it's Amendment 2 (2005) and it's Corrigendum 1 (2006). It constitutes a technical revision. The principal changes in this edition as compared with the fourth edition are as follows:
- 3.127 and 3.128 added new definitions;
- 5.10 length of refrigerant lines now specified for testing;
- 7.1 changed marking requirements for flammable refrigerants;
- 8.15 added requirement to clarify the placement of installation panels during testing;
- 11.2.1 clarification of test procedure;
- 19 (whole clause) replaced in its entirety;
- 21.2 added new coverage for vibration considerations during transport;
- 22.46 added clarification for PEC;
- 22.118 added coverage for use of mechanical connectors indoors when employing flammable refrigerants;
- 32 made this section of Part 1 applicable;
- Annex FF2.4 revised calculation for calculating volume (V);
- Annex FF2.5 revision of allowable concentration of flammable refrigerant gas;
- Annex GG8 new coverage added;
- Annex HH added informative annex. Key words: heat pumps, air-conditioners, dehumidifiers, flammable refrigerant

This publication is to be read in conjunction with IEC 60335-1:2010.