If your Trane product has a 9-digit combination of numbers and letters and begins with a number, that first number is the manufacturing year. Therefore, the first number of the serial number is, , etc. In 2002, Trane changed the nomenclature again and the manufacturing year was the first in the serial numbers. The first letter of the Trane serial number nomenclature will inform the year of manufacture, whereas the following two numbers represent the week. Trane actually skipped some letters in the following years. The method has been used since 1987 and the letter B was the first to use. Trane utilizes alpha codes in the serial numbers to inform on the age of manufacture. You need to learn how to read the Trane serial number nomenclature. The serial number on Trane products is a strong combination of letters and numbers that informs you of the manufacture date. How to tell the age of your Trane unit from its serial number Companies like Trane are free to decide which coding to use for their heating and cooling systems. There is no standard in the industry for how manufacturers should use letters and numbers to identify their products. Both letters and numbers are used in the coding. Serial numbers are typically used in various kinds of Trane products. If you have a Trane product and want to determine its age, you should look for the serial number.
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