From inside (document excerpt):
25HNA9 Infinityt 19 Series Heat Pump with Puronr Refrigerant 2 To 5 Tons Nominal (Size 24 To 60) Product Data INDUSTRY LEADING FEATURES / BENEFITS Energy Efficiency S 14- SEER/10.6-19 -14.1 EER/8.4 – 9.2 HSPF – New Aesthetic Design S WeatherArmor Ultrat Cabinet — — — Baked on powder paint Steel louver coil guard Color matched ceramic coated cabinet screws Extra Quiet Operation S Silencert System II for sound as low as 69 dBA Quiet mount split post compressor grommets Quiet External Silencer muffler Exclusive Silencer Top design Electronic ECM ball bearing outdoor condenser fan motor — Forward-swept condenser fan blade — Compressor sound hood — Laminated steel compressor mounting plate S Quiet Shift Defrost — — — — Reliability, Quality and Toughness the environmentally sound refrigerant Carrier heat pumps with Puronr refrigerant provide a collection of features unmatched by any other family of equipment.
The 25HNA has been designed utilizing Carrier’s Puron r refrigerant. The environmentally sound refrigerant allows consumers to make a responsible decision in the protection of the earth’s ozone layer. As an Energy Starr Partner, Carrier Corporation has determined that this product meets the Energy Starr guidelines for energy efficiency. Refer to the combination ratings in the Product Data for system combinations that meet Energy Starr guidelines. NOTE: Ratings contained in this document are subject to change at any time. Always refer to the AHRI directory (www.ahridirectory.org) for the most up- -date ratings -toinformation. S S 2-stage scroll compressor Field-installed 16 cu. in. filter drier Back-seating service valves High pressure switch Loss of charge switch Internal pressure relief valve Internal thermal overload Long line accessory connections Suction Line Accumulator Vapor fog eliminator Ideal Defrost Controls and Diagnostics S Infinityt Control (MUST be used, no substitutes) S Utility Interface Connection S Up to 78 point diagnostic capability with Infinityt Control Applications S Long-line – up to 250 feet (76.20 m) total equivalent length, up to 200 feet (60.96 m) condenser above evaporator, or up to 80 ft. (24.38 m) evaporator above condenser (See Longline Guide for more information.) S Low ambient (down to 0_F/-17.8_C) with complete Infinityt system. MODEL NUMBER NOMENCLATURE 1 N 2 Product Series 25 = HP 2 N 5 3 A H Product Family H = RES HP 4 A N Tier n= infinity Series 5 A/N A Major Series A = Puron 6 N 9 SEER 9=19 SEER 7 N 3 8 N 6 9 A/N A Variations A = Standard 10 A/N 0 Open 0=Not Defined 11 A/N 0 Open 0=Not Defined 12 N 3 Voltage 3=208/230 1 13 N 0 Minor Series