Inter City Products® – How to determine the age or manufacture date

How to determine the date of production/manufacture or age of an Inter-City® HVAC equipment.


This page was last updated 06 March 2012


The date of production/manufacture or age of Inter-City® HVAC equipment can be determined from the serial number. Serial number styles/formats found:


Style 1:  L920671787

Style 2:  9414B39332







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