The Jt4Bf-Ka/B Series Now Offers The Choice Of A Heat Pump That Uses A More Efficient and Environmentally Friendly Refrigerant Designated R-410A. The Jt4Bf-Ka/B Series Of Heat Pumps Offers Exceptional Performance As Well As Environmental Protection. These Models, When Matched with Our Variable Speed Air Handlers or Variable Speed Equipped Gas Furnaces, Offer A Line Of High Quality Heat Pump Systems Rated Up To 16 SEER and 9 Hspf. Features and Benefits: R-410A Refrigerant: Earth Friendly Non- Ozone Depleting Refrigerant. Copeland Scroll ULtratechtm Compressor: The ULtra Tech Compressor Operates with 2 Stages Of Heating and Cooling Capacities To Provide Superior Comfort and Efficiency. Copeland's Proven and Simple Design Equates To Years Of Comfort and Reliability For The Homeowner with Virtually Silent Operation. Durable, Attractive Cabinet: Designed Using Galvanized Steel with A Polyester Urethane Finish. The 950 Hour Salt Spray Finish Is 1.5 Mil Thick and Resists Corrosion 50% Better Than Comparable Units. Composite Base Pan: Absorbs Sound and Is Corrosion Resistant. Composite Is Also Stronger and Lighter Than Steel. Demand Defrost: Provides Additional Energy Savings In Heating By Defrosting Only When Necessary. Copper Tube / Aluminum Fin Coils: Both Indoor and Outdoor Coils Are Designed To Optimize Heat Transfer, Minimize Size and Cost, and Increase Durability and Reliability. Complete Metal Wrapper: Durable Metal Guard Protects The Coil From Yard Hazards and Extreme Weather. Removable Top Grille Assembly: Allows Ease Of Service From The Top Without Disconnecting Fan Motor Leads. Low Pressure Switch: Loss Of Charge Protection Ensures Long Compressor Life. Auto-Reset Feature Prevents Nuisance Service Visits. High Pressure Switch: Protects Against Abnormally High System Pressures. Auto-Reset Feature Prevents Nuisance Service Visits. Liquid Line Filter Drier: Included with Unit, Field Installed. One Piece Top/Orifice: Designed For Maximum Airflow and Quiet Operation. Common Suction Service Port: This Port Allows The Contractor To Read The Suction Pressure In All Modes Of Operation Without Removing Any Panels, Saving Time and Increasing Serviceability. Three Minute Restart Time Delay: When The Unit Shuts Down, A Three Minute Delay Keeps The Unit From Restarting, Eliminating The Highest Cause For Compressor Failure. Suction Accumulator: Protection From Liquid Flood Back and Future Compressor Failures. Hot Gas Muffler: Reduces Compressor Noise and Vibration. Easy Compressor and Control Access: Designed To Make Servicing Easier For The Contractor, Access Panels Are Provided To All Controls and The Compressor From The Side Of The Unit. Warranty: This Product Offers A 10-Year All-Parts Warranty. This Product Offers A 1 Year Quality Pledge To Replace The Unit If The Compressor Fails In The First Year Of Operation, To The original Owner. All Split System Products Must Be Installed with A Matched Indoor Air Handler or Indoor Coil. Consumer Product Registration Required For 10 Year All Parts Warranty and Quality Pledge Within A Limited Period Of Time After The Installation. See Current Warranty Document or Visit Our Consumer Web Site Listed On The Back Of This Document For Warranty Details.