AAF® | AAF-McQuay® | Herman-Nelson® | Incremental® | McQuay® | Prefex® | Remington® | Singer® | Skyline® | Vision®

Parent Company:  AAF-McQuay Group, Inc., a subsidiary company of DAIKIN, Industries (Thailand) Ltd.

How to determine the date of production/manufacture or age of AAF-McQuay Group, Inc. brand HVAC Systems.

The date of production/manufacture or age of AAF-McQuay Group, Inc. brand HVAC equipment can be determined from the serial number located on the data plate.

Example serial number styles/formats found:

  • Style 1: AUB U 08 05 00386
  • Style 2:  55A1234501
  • Style 3:  5PB1234503

Style 1:   AUB U 08 05 00386

Year of manufacture is 5th & 6th characters combined.
Week of manufacture is 7th & 8th characters combined.

Style 2:   55A123501

Year of manufacture is 2nd character.
Month of manufacture is 3rd character.

Style 3:   5PB1234503

Year of manufacture is 2nd character.
Month of manufacture is 3rd character.

Page last updated: 2/22/2017

Contacting AAf®

HermanNelson/AAF/McQuay
2500 City West Blvd #300
Houston, TX 77042

Phone: (609) 662-5300

Web: www.aafmcquay.com

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