I (i) is skipped to avoid confusion with the number 1. The fourth character is a letter representing the month.Ī=January / B=February / C=March / D=April / E=May / F=June / G=July / H=August / J=September / K=October / L=November / M=December Month: Week codes are not used – just months. Year: First two numbers after the letter. Most codes of this type start with A or C. * The starting letter is the code for the manufacturing facility where the unit was made, i.e., the factory code. It’s the second through fourth characters that are essential to the manufacturing date. But confusion is avoided if you understand the nomenclature sequence – Letter, 2 numbers, letter, etc. We can decode it as follows: 76 represents the year of manufacture. This serial number is used in units manufactured before 1970. 012345 is the sequential number of the unit. This system was mostly used in the 1970s, but it “pops up” periodically after that on some types of Trane and American Standard equipment.Īs you can guess, this sequence of numbers and letters can easily be confused with the method used from 1983 to 2001. We can decode it as follows: 1 represents the year of manufacture. 9 Characters Starting with a Letter – 1970s Year: First two numbers are the year, starting with 10 (2010) and currently up to 22 (2022)ĭate of Manufacture:1982 (the letter C) in the 33 rd week (August/September). The other numbers and letters in each of the styles identify the factory where the unit was made and the sequence of manufacturing. They are listed from most recent to older serial number styles.įor each of these, the important characters for the manufacturing date are underlined. Here’s an overview of all the styles, including a review of the two explained already, now that you understand the basic strategy Trane uses. This method is used for heat pump and furnace serial numbers too. How to Read a Trane Air Conditioner Serial Number The next two numbers are the week: The 10 th week of the year falls in March. It proves the decoding method explained above. The serial number is 17103N6MF4. In the picture above, you can see it shown as 3/2017, or March 2017. If you cannot identify Bard HAVC age from serial number, drop your comment below, and we will be happy to help you.MFR Date: Trane makes it easy on many of its products by stamping the manufacture date right onto the tag. The other numerical digits are the Unit Identity numbers.įor Bard HVAC that are manufacture in year 2000 to present, the year 2000 started the numerical numbering from 00 (00 = 2000 01 = 2001 02 = 2002, etc.).The number 98 in the sample represents 1998. The fifth and sixth numerical digits are the year of manufacture.The letter A in the sample represents January. The fourth letter digit is the month of manufacture.The first three numerical digits are the Compressor Part Number.Serial Number #123 A98123456789 – Fifteen character Serial number that begins with three numerical digits followed by a letter and eleven numerical digits. The last six numerical digits represent the Unit Identity Number.The letter A in the sample represents 1980. The second letter is the year of manufacture.The letter B in the sample represents February. The first letter is the month of manufacture.The first three digits are the Compressor Part Number.This style was used only in April & May 1980. Serial Number #123 BA456789 – Eleven character Serial number that begins with three numerical digits followed by two-letter digits and ends with six numerical digits. To decode the letter in Bard serial number above, follow the guideline below: Month The letter B in the sample represents 1962. The first six numerical digits are the Unit Identity numbers.This style is used from 1962 to March 1980. Serial Number #123456 AB – Eight character Serial number begins with six numerical digits followed by two-letter digits.
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