本文件由两部分组成。 第一部分是对EN 303-1、EN 303-2、EN 303-4和EN 304（以下简称锅炉标准）的补充。 本标准规定了燃油热水器和组合锅炉的结构、安全、合理使用能源、适用性、分类和标记的补充要求和试验。 生活热水是根据瞬时或储存原理产生的。国内热 水生产是集成或耦合的，整体作为一个单元销售。 第二部分介绍家用热水器的能源性能 第一部分介绍。 第二部分阐述了评估电器能源性能的方法。 它定义了 厨房、淋浴、浴缸和浴室等家用热水的每日水龙头循环次数 这些因素的结合，以及相应的测试程序，使能源性能 锅炉和热水器的组合应根据用户的需求进行比较和匹配。 本标准涵盖的电器的热输出不超过400千瓦。 对于带或不带储水箱的组合锅炉，生活热水生产是必要的 整体的或耦合的，整体作为一个单元进行销售。 本标准仅适用于型式试验。交叉引用:ISO 228-1EN 304EN 1057ISO 7-1EN 303-2EN 13203-2EN 303-1:2017购买本文件时可获得的所有现行修订均包括在购买本文件中。

This document is composed of two parts. The first part supplements EN 303-1, EN 303-2, EN 303-4 and EN 304, hereafter called boiler standards. It specifies the supplementary requirements and tests for the construction, safety, rational use of energy, fitness for purpose, classification and marking related to the domestic hot water operation of oil-fired water heaters and combination boilers. The domestic hot water is produced on either the instantaneous or storage principle. The domestic hot water production is integrated or coupled, the whole being marketed as a single unit. The second part covers the energy performance of domestic hot water production of the appliances covered by the first part. This second part sets out a method for assessing the energy performance of the appliances. It defines a number of daily tapping cycles for each domestic hot water use such as kitchen, shower, bath and a combination of these, together with corresponding test procedures, enabling the energy performances of combination boilers and water heaters to be compared and matched to the needs of the user. The heat output of the appliances covered by this standard does not exceed 400 kW. In the case of combination boilers, with or without storage tank, domestic hot water production is integrated or coupled, the whole being marketed as a single unit. This standard only covers type testing.Cross References:ISO 228-1EN 304EN 1057ISO 7-1EN 303-2EN 13203-2EN 303-1:2017All current amendments available at time of purchase are included with the purchase of this document.