Usually, people don't care enough to decode model numbers, but sometimes you need to know what they mean. Still, each letter and number means something. Leave a Reply Cancel reply Your email address will not be published.Model numbers, to the untrained eye, can seem a little like a foreign language. Save my name, email, and website in this browser for the next time I comment. Your email address will not be published. Mas Broto is also a blogger, who's dedicated to bringing you the best knowledge to get ahead in the game of life. He is person that will grow and thrive to learn more about the HVAC industry throughout his career. Have been in the heating and air conditioning HVAC industry for over 20 years. Use our guide above to decipher your trane serial number or ask your dealer for help. As your serial number includes some vital information about your unit age. Trane model numbers and serial numbers are needed to register a new product or look up an existing warranty. Check the year of ANSI rating elsewhere on the data plate to confirm. Trane heating and air conditioning company again made changes in year The first two digits of trane serial number lookup age are the year. If the trane serial number is a 9-digit combination of letters and numbers that starts with a number, then the first number is the year. In the first character of the serial number is 2, in3 and so on. In they started their serial numbers with the year it was built. The first letter of the trane serial number lookup gives the year of manufacture and the next two numbers are the week. This HVAC company started this in with the letter B and skipped a couple of letters during the years. Trane uses alpha codes in their serial numbers to determine the age year of manufacture.

Trane serial number nomenclature