manufacture or age of a SQUARE D® HVAC Systems

Square D®
How to determine the date of production/manufacture or age of a Square D® HVAC Systems.

This page was last updated 11 April 2012


The date of production/manufacture or age of an Square D® HVAC system can be determined from the manufacture date located on the data plate along with the model and serial numbers. 


Style 1:  CN3D104  F0481  2518


square d furnace air conditioner


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