How to Determine Furnace Age - （如何确定炉年龄-）.pdf

How to Determine Furnace Age HVAC MONTH OF MANUFACTURE (Most Manufactures that use lettersfollow this letter to month pattern) A = January, B = February, C = March, D = April, E = May, F = June, G = July, H = August, J = September, K = October, L = November, M = December Allied Air Enterprises six brands – Armstrong Air™, AirEase™, Concord™, Ducane™, Allied Commercial and Magic-Pak™. Some imported some mfg’d / 800-448-5872 Aire-Flow- 2nd two digits are the year followed by a letter for the month. Owned by Lennox International, but has own manufacturing facility in Dallas, TX and Mexico. Lennox is an exclusive distributor for Aire- Flo. Tech support can be reached at 1-800-982-2333. / AirQuest: See ICP Airtemp – was made by Chrysler. Fifth digit is the year (8= 1978) same as their cars . They were purchased by Fedders in 1976 Amana: Purchased by Goodman, in 2003 B = 71, 81, 91, 01 L = 72, 82, 92, 02 A = 73, 83, 93, 03 C = 74, 84, 94, 04 K = 75, 85, 95, 05 H = 76, 86, 96, 06 O = 77, 87, 97, 07 R = 78, 88, 98, 08 S = 79, 89, 99, 09 E = 80, 90, 00, 10 American Standard – See Trane Arcoaire: Arcoaire and Comfortmaker brands, now produced by International Comfort Products Corporation, trace their roots back to the founding of a furnace company in St. Louis, Missouri in 1900 and was bought from the Snyder-General Corporation in 1991 who had its residential HVAC operation in Red Bud, IL. See ICP for serial number sequence, newer will work, older is unknown. Armstrong: See Lennox – stumped? call 800-448-5872 ask for consumer division. Model number G6 was manufactured between the late 1950s and early 1960s . Now distributed by Allied Air owned by Lennox Armstrong (1974 - Present) Date of Manufacture (1974 to Present): The manufacturing date code is the third, fourth, and fifth digits of the serial number,