Armstrong Air® HVAC age

How to determine the date of production/manufacture or age of Armstrong Air® 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 Company: Armstrong Air Conditioning, Inc., which is part of the Allied Air Division of Lennox.

The date of production/manufacture or age of Armstrong Air brand HVAC equipment can be determined from the serial number located on the rating data plate.

Example serial number styles/formats found:

Style 1: 4607B20058
Style 2: A14019ELA

Legend: Year is RED; Month is GREEN

Style 1: 4607B20058

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

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

Armstrong Air HVAC Age – Serial Number – Style 1

Style 1: A14019ELA

Month of manufacture can be determined by using the 7^th position of the serial number (See chart below)

Year of manufacture can be determined by using the 8^th position of the serial number (See chart below)

Armstrong Air HVAC Age – Serial Number – Style 2

Armstrong Air® 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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