Every effort is undertaken to offer you correct and concise information to assist you in determining the age or manufacture date of HVAC equipment. Anytime anyone is dealing with numbers and letters in determining data, mistakes and misinterpretation are bound to happen. For this reason if you find during your research that we may have erred please contact us. In addition perhaps you have come across a brand, model or serial number format that we have not addressed. Email us information or pictures of data/nomenclature plates of the unit and we will attempt to assist you in your determinations. Email
This page was last updated: 24 July 2009
AirQuest – Present Day
Serial Number format: R024112345
(This serial number is fictitious).
Using the second, third, fourth and fifth digits of the serial number R024112345 you will find the year and week of manufacture. The first digit of the serial number will always be a letter immediately followed by four numbers which will represent the year and week of manufacture. This unit was manufactured in the 41st week of 2002.
Year of manufacture: R024112345
Week of manufacture: R024112345