This Technical Specification 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 CEN/TS 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.
BS DD CEN/TS 12977-2:2010 history
2012BS EN 12977-2:2012 Thermal solar systems and components. Custom built systems. Test methods for solar water heaters and combisystems
2010BS DD CEN/TS 12977-2:2010 Thermal solar systems and components - Custom built systems - Test methods for solar water heaters and combisystems
2001BS DD ENV 12977-2:2001 Thermal solar systems and components - Custom built systems - Test methods