SS-ABGMEC80/ABGCEC80 www.abcoolairhvac.com 8/20Supersedes 10/19Two-Stage, Multi-Speed ECMGas Furnace80% AFUEGMEC80 / GCEC80Heating Input: 40,000–120,000 BTU/hStandard Features• Two-stage gas valve provides quiet,economical heating• Efficient and quiet multi-speed ECM circulator motor• SureStart® Silicon Nitride igniterdesigned for long igniter life• Self-diagnostic control board• Low constant fan speed circulates airthroughout the home• Quiet, two-speed induced draft blower• California Low NOx emissions-compliantmodels available• Can no longer be installed in California’sSouth Coast Air Quality Management District(SCAQMD) on or after October 1, 2019.• AHRI Certified; ETL ListedCabinet Features• Fully insulated, heavy-gauge steel cabinetwith durable baked-enamel finish• Multi-position installation:GMEC80: upflow, horizontal left or rightGCEC80: downflow, horizontal left or right• Removable bottom for side- orbottom-return applications• Convenient left or right connectionfor gas/electric service• Cabinet air leakage ≤ 2%• Coil and furnace fit flushfor most installationsLIFETIMEHEATEXCHANGERLIMITED WARRANTY*10YEARUNITREPLACEMENTLIMITED WARRANTY*10YEARPARTSLIMITED WARRANTY** Complete warranty details available from your local dealer or at www.abcoolairhvac.com. To receivethe Lifetime Heat Exchanger Limited Warranty (good for as long as you own your home), 10-YearUnit Replacement Limited Warranty and 10-Year Parts Limited Warranty, online registration must becompleted within 60 days of installation. Online registration is not required in California or Québec.ContentsNomenclature........................................ 2Product Specifications ........................... 3Dimensions ............................................ 5Accessories ............................................ 6Airflow Data ........................................... 7Wiring Diagram ................................... 24