ČSN EN 12977-1
Tepelné solární soustavy a součásti - Soustavy stavěné na zakázku - Část 1: Obecné požadavky na solární ohřívače vody a kombinované soustavy

ČSN EN 12977-1

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 European Standard also contains requirements on the design process of large custom built systems.