Split System Air Conditioner - R221-1/2 THRU 5 TONS208 / 230 Volt, 1-phase, 60 HzREFRIGERATION CIRCUIT Scroll compressors on all models Compressors contain proper charge of mineral oil 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 For use with R-22 refrigerant BUILT TO LAST Pre-painted cabinet finish over galvanized steel Coated inlet grille with 3/8 (10mm) spacing for extra protection (hail guard) LIMITED WARRANTY*5 year parts limited warranty (including compressor and coil) * Applies to original purchaser/homeowner, some limitations may apply. See Warranty certificate for complete details.