本标准为住宅应用中使用的中央系统加湿器的加湿能力、空气压降、能耗和能效（如使用）的测试和评级制定了一套单独的要求。中央系统加湿器是指安装在管道式住宅供暖/制冷中央系统上的加湿器。I-P评级见AHRI标准610（I-P）-2014。

This standard establishes a single set of requirements for the testing and rating of humidification capacity, air pressure drop, and energy consumption and energy efficiency (where used) for central system humidifiers used in residential applications. Central system humidifiers are defined as humidifiers intended to be installed on ducted residential heating/cooling central systems.For I-P ratings, seeAHRI Standard 610 (I-P) - 2014.