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From inside (document excerpt):
25HCB3 Comfortt 13 Series Heat Pump with Puronr Refrigerant 1 1/2 To 5 Nominal Tons (Sizes 18 To 60) Product Data INDUSTRY LEADING FEATURES / BENEFITS Efficiency S 13 SEER/ 10.1 — 10.8 EER/ 7.7 — 8.3 HSPF (Nominal) S Microtube Technologyt refrigeration system S Indoor air quality accessories available Sound S Sound level as low as 70 dBA Comfort S System supports Thermidistatt or standard thermostat controls Reliability S Puronr refrigerant — environmentally sound, won’t deplete the ozone layer and low lifetime service cost.
the environmentally sound refrigerant Carrier’s heat pumps with Puronr refrigerant provide a collection of features unmatched by any other family of equipment. The 25HCB3 has been designed utilizing Carrier’s Puron refrigerant. The environmentally sound refrigerant allows consumers to make a responsible decision in the protection of the earth’s ozone layer. This product has been designed and manufactured to meet Energy Starr criteria for energy efficiency when matched with appropriate coil components. 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 Front–seating service valves S Scroll compressor S Internal pressure relief valve S Internal thermal overload S High pressure switch S Loss of charge switch S Filter drier S Balanced refrigeration system for maximum reliability Durability WeatherArmort protection package: S Solid, durable sheet metal construction S Steel louver coil guard S Ceramic coated cabinet screws S Baked–on, complete coverage, powder paint 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 –20_F/–28.9_C) with accessory kit MODEL NUMBER NOMENCLATURE 1 N 2 2 N 5 3 A H Product Family H = RES HP 4 A C Tier 5 A/N B Major Series 6 N 3 SEER 3=13 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 5=208/230 3 6=460 3 13 N 1 Minor Series 0, 1, 2. Product Series 25 = HP Cooling Capacity C=Comfort B = Puron the environmentally sound refrigerant 25HCB3 Use of the AHRI Certified TM Mark indicates a manufacturer’s participation in the program For verification of certification for individual products, go to www.ahridirectory.org. This product has been designed and manufactured to meet Energy Star® criteria for energy efficiency when matched with appropriate coil components. However, proper refrigerant charge and proper air flow are critical to achieve rated capacity and efficiency. Installation of this product should follow all manufacturing refrigerant charging and air flow instructions. Failure to confirm proper charge and air flow may reduce energy efficiency and shorten equipment life. STANDARD FEATURES Feature Puron Refrigerant 13 SEER Scroll Compressor Louvered Coil Guard Field Installed Filter Drier Front Seating Service Valves Internal Pressure Relief Valve Internal Thermal Overload Long Line capability Low Ambient capability with Kit Suction Line Accumulator High Pressure Switch Loss of Charge Switch X = Standard Scroll Puronr (R 410A) TXV (Puron Hard Shutoff) 7.2 (3 ….. …