Allied Air/Allied-Commercial® HVAC age

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

The industry average service design life for most forced air furnaces is 15-20 years, and the industry average service design life for most air conditioning condensing units is 10-15 years. The average service design life of boilers can vary from as little as 10 years to as many as 50 years depending on the type and quality of materials used in their manufacture. Routine upkeep/maintenance, regional weather/climate, and location/placement of the mechanical systems will all play critical roles in the longevity of these systems.

Parent: Lennox

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

Example serial number styles/formats found:

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

Legend: Year is RED; Month is GREEN; Week is BLUE; Day is DARK BLUE

(See letter codes in respective style-types)

Style 1: 1606B13871

Year of manufacture can be determined by using the 3rd & 4th positions of the serial number

Month of manufacture can be determined by using the 5^th position of the serial number (See below for legend)

Style 2: C89274AAC

Year of manufacture can be determined by using the 7^thposition of the serial number (See chart below for legend)

Month of manufacture can be determined by using the ^6th position of the serial number (See chart below for legend)

Style 3: 15A67 JA098

Day of manufacture can be determined by using the 1^st & 2^nd position of the serial number

Week of manufacture can be determined by using the 3^rdposition of the serial number (See chart below for legend)

Year of manufacture can be determined by using the 4^th & 5^th position of the serial number

Style 4: 4140720328

Year of manufacture can be determined by using the 7^th & 8^th position of the serial number

Week of manufacture can be determined by using the 9^th & 10^thposition of the serial number

Allied-Commercial® History

Work In Progress

Every effort is undertaken to offer you correct and concise information to assist you in determining the age or manufacture date of HVAC/R equipment. Users relying on this information do so at their own risk.

Page last updated: 06/21/2024

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