This standard BS EN 12977-1:2018 Thermal solar systems and components. Custom built systems is classified in these ICS categories:
91.140.65 Water heating equipment
91.140.10 Central heating systems
27.160 Solar energy engineering
This European Standard specifies requirements on durability, reliability and safety of small and large custom built solar heating and cooling systems with liquid heat transfer medium in the collector loop for residential buildings and similar applications. This document also contains requirements on the design process of large custom built systems.
