Title: +038=370.001-IK009._03-Dynaciat LG 300 A Varmepumpe EPTEC - Teknisk datablad.pdf
8Water chillersHeat pumpDYNACIAT LGSeasonal performance, heating mode The European "Ecodesign" directive takes into account the product's environmental impact throughout its life cycle. It defines the mandatory energy efficiency requirements for water chillers and heat pumps.■ Primary energy evaluation In order to compare the energy efficiency of products using different energy sources, the Ecodesign directive introduced a new seasonal energy efficiency calculation known as Ƞs (Greek letter eta followed by the letter "s" for seasonal) and expressed as a percentage. For heat pumps, the SCOP (final energy) value is transposed to Ƞs (primary energy) by taking into account a conversion coefficient of 2.5 which corresponds to the average efficiency of the electrical production and various corrections for the responsiveness of the regulation system (i = 8 for water-to-water heat pumps).