HIGH EFFICIENCY 16 SEER TWO-STAGE HEAT PUMP WITH OBSERVER COMMUNICATING CONTROL SYSTEM2 THRU 5 TONS SPLIT SYSTEM208/230 Volt, 1-phase, 60 HzREFRIGERATION CIRCUIT Copeland Scroll Ultratech compressors on all models Crankcase Heater factory installed Suction line accumulator factory installed Bi-flow filter-drier included for field installation Integrated solid state control with Time-Temperature Defrost High and low pressure switches Discharge gas thermostat Copper tube / aluminum fin coil PERFORMANCE Self configuring installation capabilities with Observer Communicating Wall Control Outdoor temperature sensor factory installed Ball Bearing PSC Fan Motors on all models High performance compressor sound shield standard Isolation compressor grommets EASY TO INSTALL AND SERVICE Text based diagnostics with Observer Communicating Wall Control Only 2 control wires required from communicating indoor unit to condenser Easy access service valves on all models Innovative control box design External high and low refrigerant service ports Only two screws to access control panel Factory charged with R-410A refrigerant BUILT TO LAST High gloss, baked-on powder coat finish over galvanized steel Post-painted (black) coil fins Coated, weather-resistant cabinet screws Coated inlet grille with 3/8 (10mm) spacing for extra protection (hail guard) Corner posts for extra strength and style WARRANTY* 10 year No Hassle Replacement 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)* Applies to original purchaser/homeowner, some limitations may apply. See Warranty certificate for complete details.