BS EN 12977-4:2018规定了用于EN 12977-1:2018规定的小型定制系统的存储性能表征的测试方法。根据本文件测试的存储通常用于solar combisystems。但是，也可以根据本文件规定的试验方法，评估以水为存储介质的所有其他热储器（例如热泵系统）的热性能。本文件适用于标称容量不超过3000 l且不带集成燃烧器的梳状晶体管。交叉引用:EN 12828EN 12977- 3:2018EN ISO 9488（采用ISO 9488:1999）EN 12977-2:2018EN 12976-2:2017EN 12977-1:2018EN 12897EN 307购买本文件时提供的所有当前修订版均包含在购买本文件中。

BS EN 12977-4:2018 specifies test methods for the performance characterization of stores which are intended for use in small custom built systems as specified in EN 12977-1:2018.Stores tested according to this document are commonly used in solar combisystems. However, the thermal performance of all other thermal stores with water as a storage medium (e.g. for heat pump systems) can be also assessed according to the test methods specified in this document.This document applies to combistores with a nominal volume up to 3 000 l and without integrated burner.Cross References:EN 12828EN 12977-3:2018EN ISO 9488 (ISO 9488:1999 Adopted)EN 12977-2:2018EN 12976-2:2017EN 12977-1:2018EN 12897EN 307All current amendments available at time of purchase are included with the purchase of this document.