HEAT PUMP EFFICIENT 14 SEER1-1/2 THRU 5 TONS SPLIT SYSTEMENVIRONMENTALLY SOUND R-410A REFRIGERANT208 / 230 Volt, 1-phase, 60 HzREFRIGERATION CIRCUIT Scroll compressors on all models Suction line accumulator factory installed Integrated solid state control with Time-Temperature Defrost High and Low pressure switches 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 Painted cabinet finish over galvanized steel Coated inlet grille with 3/8 (10mm) grille spacing for extra protection (hail guard) LIMITED WARRANTY 1 year unit replacement limited warranty 5 year parts limited warranty compressor (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.