EFFICIENT 13 SEER AIR CONDITIONERENVIRONMENTALLY SOUND R-410A REFRIGERANT1-1/2 THRU 5 TONS SPLIT SYSTEM208/230 Volt, 1-phase, 60 HzREFRIGERATION CIRCUIT Scroll compressors on all models 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 BUILT TO LAST Pre-painted cabinet finish over galvanized steel Coated inlet grille with 3/8 (10mm) grille spacing for extra protection WARRANTY* 5 year compressor limited warranty 5 year parts limited warranty (including compressor and coil) - With timely registration, an additional 5 year parts limited warranty (including compressor and coil)* For residential applications only. See warranty certificate for complete details and restrictions, including warranty coverage for other applications.