Infinity® 19 Heat Pump 25HNB9 Efficient Cooling and Heating System Backed By the Comfort of Infinity Infinity series products represent the pinnacle of our communicating technology. In a heat pump, this advanced system enables some of the best comfort features and energy saving advancements. With the Infinity 19 heat pump you can enjoy two-stage compressor comfort, exceptional cooling and heating efficiency and, when paired appropriately with the Infinity control, greater energy savings and convenient system management features. Should you choose to add an Infinity furnace with variable-speed blower motor you can have an energy-smart, Hybrid Heat® system with exceptional year round comfort and savings. Standard Features Up to 19 SEER cooling efficiency Up to 10 HSPF heating efficiency Sound: as low as 65 decibels1 Superior humidity and temperature control Two-stage compressor operation for excellent comfort and quiet Compressor sound blanket and Silencer System II™ design Filter drier system protection from moisture and contaminants Ideal Defrost heating operation with Infinity control WeatherArmor™ Ultra protection Non-ozone depleting Puron® refrigerant 10-year parts limited warranty2 Optional Features Optional labor warranty available3 1 Quietest size within each model group during most common cooling operating condition. 2 To the original owner, when product is used in a residence, a 10-year parts limited warranty upon timely registration of your new equipment. Warranty period is 5 years if not registered within 90 days. Jurisdictions where warranty benefits cannot be conditioned on registration will automatically receive a 10-year parts limited warranty. See warranty certificate for complete details. 3 Ask your Carrier® dealer for details.