![]() ![]() Lennox: Either the first two or second two digits are the year, it varies by era, but most of them actually have a separate sticker somewhere that has the year printed on it. Second two are the month.ītu rating is model number…ie GMP075-3 (75,000 bonnet input)Ĭompressor is same :serial # 9709088872 (yr1997 wk 09) Tonnage is model # CK361C The first two numbers after the CK (letters) divided by 12 is tons. Goodman: First two digits of the serial number are the year. Harold Hammer at Tech Support (ext#5) will answer your questions. They supply OEM equipment to all of the major HVAC manufacturers. **Coleman: **Serial numbers prior to April 1992=1st two numbers are month, then year, then series.Īfter April 1992, 1st two numbers are year, then month, then series.Ĭomfortmaker (International Comfort) uses the first letter for the month (skipping I) and the first two digits are the year.įirst Company Service Parts is one of 4 divisions of First Operations. Previously, it was a complex series of letters and single digits. #AIR CONDITIONER SERIAL NUMBER DECODER GOODMAN CODE#The year 2000 started the numerical numbering from 00.ġ4th & 15th digits = Factory Code (01=OH 02=GA)Ĭarrier, Bryant, Payne, Day & Night**: **Recently (last 20 years or so) the first four numbers in the serial number represent the week and year. This serial number style was only used during the months of April & May 1980.Ħth thru 11th digits represent the Unit Identity Number. In this sample D represents April.ĥth digit is the year of Manufacture. (The letter D in the Sample represents 1964).ġst three digits are the Compressor Part Number.Ĥth digit is the month of Manufacture. (The letter A in the Sample represents January).Ĩth digit is the year of Manufacture. In this example they are represented by the numbers 123456.ħth digit is the month of Manufacture. ![]() (Of course, now that they’ve been bought by Goodman, who knows what’ll happen.)ġst six digits are the Unit Identity Number. I’m bringing this over here for future reference…Īmana: BLACKHORSE. ![]()
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