Allied Air/Allied-Commercial®

How to determine the date of production/manufacture or age of Allied-Commercial® HVAC Systems.

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

Parent: Lennox

Example serial number styles/formats found:

Style 1: 1606B13871
Style 2: C89274AAC
Style 3: 15A67 JA098
Style 4: 4140720328

Back to Brand Listing

Style 1: 1606B13871

Description: Ten (10) character Serial number begins with four (4) numerical digits followed by one (1) letter and ends with five (5) numerical digits.

Year of manufacture is 3rd-4th character numerical digits

Month of manufacture is 5th character letter digit (See chart below).

Style 2: C89274AAC

Description: Nine (9) character Serial number begins with one (1) letter digit followed by five (5) numerical digits and ends with three (3) letter digits.

Year of manufacture is 1st-2nd numerical digits

Month of manufacture is 3rd character (see chart)

Style 3: 15A67 JA098

Description: Ten (10) character Serial number begins with two (2) numerical digits followed by a letter and two (2) more numerical digits – a space – and ends with two (2) letters followed by three (3) numerical digits

Day of manufacture is 1st-2nd numerical digits

Month of manufacture is 3rd character letter digit (See chart below)

Year of manufacture is 4th-5th numerical digits reversed.

Style 4: 4140720328

Description: Ten (10) digit numerical Serial number.

Year of manufacture is 7th-8th numerical digits.

Work Week of manufacture is 9th-10th numerical digits.

Page last updated: 13 Sep 2015

Contact Allied-Commercial® (View)

Recalls (Empty)

Trademarks & Service Marks (Disclaimer)

Any of the trademarks, service marks, collective marks, design rights or similar rights that are mentioned, used or cited in the articles of the Building Intelligence Center (www.buildingcenter.org) are the property of their respective owners. Their use here does not imply that you may use them for any purpose other than for the same or a similar informational use as contemplated by the original authors of these articles under the CC-BY-SA and GFDL licensing schemes. Unless otherwise stated Building Intelligence Center (www.buildingcenter.org) sites are neither endorsed by nor affiliated with any of the holders of any such rights and as such Building Intelligence Center (www.buildingcenter.org) cannot grant any rights to use any otherwise protected materials. Your use of any such or similar incorporeal property is at your own risk. This guide is intended to assist Commercial/Residential Building Inspectors, HVAC professionals, Facilities Managers, HOA’s, etc.., in determining the date of manufacture and/or age of HVAC equipment to determine the expected useful life (EUL). This web site should not be relied upon for commercial use or interpretations. Accuracy and reliability of the information provided is believed accurate but is not guaranteed. The burden for fitness of information provided relies solely and completely with the user. In no event will Building Intelligence Center or its representatives be liable for any loss or damages whatsoever for consequential, incidental, indirect, special, or tort damages of any kind, including but not limited to loss of data, lost profits, business interruption, loss of business information, or other pecuniary loss that might arise from the use of or reliance on the information provided within.