Precharged Lines : Refrigerant line's which are filled with refrigerant and are sealed at both ends. The seals are broken when the lines are installed and the line charge becomes part of the total system charge
EESiFlo North America, Terminology and Glossary: HVAC Terms, Pennsylvania, USA 2002. flowmeterdirectory.com/flowmeter_terminology, (Heat, Vent and Air Cond - Amer) {553}