本欧洲标准适用于小型和大型定制太阳能加热系统，具有用于住宅建筑和类似应用的液体传热介质，并提供了验证EN 12977-1规定要求的测试方法。 该文件还包括通过组件测试和系统仿真的小型定制系统的热性能表征和系统性能预测的方法。 此外，本文档包含大型定制系统的热性能表征和系统性能预测的方法。 本文适用于以下类型的小型定制太阳能供热系统: - 家用热水制备系统; - 仅供空间采暖的系统; - 家用热水制备和空间供热系统; - 其他（例如包括冷却）。 本文件适用于大型定制太阳能加热系统，主要用于具有一个或多个存储容器，热交换器，管道和自动控制器的太阳能预热系统，以及在集电器环路中强制循环流体的收集器阵列。 本文档不适用于 - 具有水以外的储存介质的系统（例如相变材料）， - 热虹吸系统， 集成电路

This European Standard applies to small and large custom built solar heating systems with liquid heat transfer medium for residential buildings and similar applications, and gives test methods for verification of the requirements specified in EN 12977-1. This document also includes a method for thermal performance characterization and system performance prediction of small custom built systems by means of component testing and system simulation. Furthermore, this document contains methods for thermal performance characterization and system performance prediction of large custom built systems. This document applies to the following types of small custom built solar heating systems: - systems for domestic hot water preparation only; - systems for space heating only; - systems for domestic hot water preparation and space heating; - others (e.g. including cooling). This document applies to large custom built solar heating systems, primarily to solar preheat systems, with one or more storage vessels, heat exchangers, piping and automatic controls and with collector array(s) with forced circulation of fluid in the collector loop. This document does not apply to - systems with a store medium other than water (e.g. phase- change materials), - thermosiphon systems, - integral collector-storage (ICS) systems.