"reversible air-conditioning/heat pump system" means a combination of interconnected refrigerant-containing parts constituting one closed refrigeration circuit, in which the refrigerant is circulated for the purpose of extracting and rejecting heat (i.e. cooling, heating), processes which are reversible in that the evaporators and condensers are designed to be interchangeable in their functions,
"izmenični sistem za klimatizacijo/toplotno črpalko" pomeni kombinacijo medsebojno povezanih delov, ki sestavljajo zaprti hladilni krog, v katerem kroži hladilno sredstvo zaradi zbiranja in oddajanja toplote (t. j. hlajenje, segrevanje), torej reverzibilnih procesov, v katerih so uparjalniki in kondenzatorji projektirani za izmenično delovanje,