标准146提供了泳池加热器额定加热能力和能源效率的测试方法。本标准适用于燃气、燃油和/或电力驱动的强制循环加热器，以及混合加热器。2020版新增内容:-将标准重新格式化为测试方法。-扩大范围，包括使用土壤、水或盐水作为热源的热泵泳池加热器，以及配备化石燃料燃烧器和热泵的混合泳池加热器。-修订了试验方法，以解决扩大范围内的产品。-更新了定义和参考资料。-修改了可选再循环回路的使用规范，以明确其仅在制造商要求时适用。-增加了测量待机和关闭模式能耗的测试方法。-删除了两个过时的信息性附录，并添加了一个新的信息性附录B，描述了美国。 美国能源部对泳池加热器进行评级。

Standard 146 provides methods of test testing for heating capacity and energy efficiency for rating pool heaters. The standard applies to forced-circulation heaters operated by gas, oil, and/or electricity, as well as hybrid heaters.New in the 2020 edition:- Reformatted the standard as a method of test.- Expanded the scope to include heat-pump pool heaters that use earth, water, or brine as the heat source and hybrid pool heaters equipped with both a fossil-fueled burner and a heat pump.- Revised the test method to address the products included by the expanded scope.- Updated definitions and references.- Modified the specification for use of the optional recirculating loop to make clear it applies only when required by the manufacturer.- Added test methods to measure the standby and OFF-mode energy consumption.- Deleted two obsolete informative appendices have been deleted and added a new Informative Appendix B describing test conditions used by the U.S. Department of Energy to rate pool heaters.