PSAM line sets support high‑efficiency VRF‑style and multi‑zone ductless systems when specified correctly

https://mighty-wiki.win/index.php/HVAC_Line_Set_Inspection_Points_Every_Technician_Should_Check

PSAM line sets support high‑efficiency VRF‑style and multi‑zone ductless systems when specified correctly, helping maintain balanced refrigerant distribution.