ENVIRONMENTALLY SOUND R-410A REFRIGERANT1-1/2 THRU 5 TONS SPLIT SYSTEM208/230 Volt, 1-phase, 60 HzREFRIGERATION CIRCUIT Scroll compressors on all models Filter-Drier supplied with every unit for field installation Copper tube / aluminum fin coil EASY TO INSTALL AND SERVICE Easy Access service valves on all models External high and low refrigerant service ports Only two screws to access control panel Factory charged with R-410A refrigerant