The Unico System® HVAC age

How to determine the date of production/manufacture or age of The Unico System® HVAC Systems.

The date of production/manufacture or age of The Unico System® HVAC equipment can be determined from the serial number located on the data plate.

Parent Company:   Unico Inc., Saint Louis, MO

Example serial number styles/formats found:

  • Style 1:    Serial No. 0511A178333

Style 1:    0511A178333

The date of manufacture is coded in the 1st four digits of the serial number and represent the year and week of manufacture.

Page last updated: 26 June 2018

Unico, Inc.

1120 Intagliata Drive
Arnold, MO 63010

Office: (800) 527-0896
Fax: (314) 457-9000


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