Product Data24ACB7Performancet 2---Stage Air Conditionerwith Puronr Refrigerant2 to 5 Tonsthe environmentally sound refrigerantCarrier Air Conditioners with Puron r refrigerant provide acollection of features unmatched by any other family ofequipment. The 24ACB has been designed utilizing Carrier’sPuron refrigerant. The environmentally sound refrigerant allowsyou to make a responsible decision in the protection of the earth’sozone layer.This product has been designed and manufactured to meetEnergy Starr criteria for energy efficiency when matched withappropriate coil components. Refer to the combination ratings inthe Product Data for system combinations that meet Energy Starrguidelines.NOTE: Ratings contained in this document are subject tochange at any time. Always refer to the AHRI directory(www.ahridirectory.org) for the most up--to--date ratingsinformation.INDUSTRY LEADINGFEATURES / BENEFITSEfficiencyS 14.0 -- 17.7 SEER / 11.3 -- 13.7 EERS Microtube Technologyt refrigeration systemS Indoor air quality accessories availableSoundS Sound level as low as 72 dBAComfortS System supports Thermidistatt or standard 2--stagethermostat controlsReliabilityS Puronr refrigerant -- environmentally sound, won’tdeplete the ozone layer and low lifetime service cost.S Front--seating service valvesS 2--stage scroll compressorS Internal pressure relief valveS Internal thermal overloadS Low pressure switchS High pressure switchS Filter drierS Balanced refrigeration system for maximum reliabilityDurabilityWeatherArmor Ultrat protection package:S Solid, Durable sheet metal constructionS Steel louver coil guardS Baked--on, complete outer coverage, powder paintApplicationsS Long--line -- up to 250 feet (76.2 m) total equivalentlength, up to 200 feet (60.96 m) condenser aboveevaporator, or up to 80 ft. (24.38 m) evaporator abovecondenser (See Longline Guide for more information.)