HEAT PUMP COMPONENT1-1/2 THRU 5 TONS208 / 230 Volt, 1-phase, 60 HzREFRIGERATION CIRCUIT Scroll compressors on all modelsCompressors contain proper charge of POE oil** Suction line accumulator factory installed Integrated solid state control with Time-Temperature Defrost Low pressure switch 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 dry nitrogen holding charge - For use with R-22 refrigerant BUILT TO LAST Pre-painted cabinet finish over galvanized steel Coated inlet grille with 3/8 (10mm) grille spacing for extra protection (hail guard) WARRANTY*5 year parts limited warranty (including compressor and coil) * For owner occupied, residential applications only. See warranty certificate for complete details and restrictions, including warranty coverage for other applications.