9,000 BTU Ductless 23.5 SEER 1-Zone Conditioner/Inverter Heat Pump Package. The LG LS090HSV5 is a Ductless Mini Split System that consists of a LSN090HSV5 and a LSU090HSV5. This LG LS090HSV5 Mini Split Ductless Heat Pump Air Conditioner is a wall mounted 9,000 class BTU, single zone unit, complete with heat pump inverter. The LG LS090HSV5 System will improve your quality of life in an affordable, eco-friendly way.