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About Allied

Allied Air Enterprises is a division of Lennox International. We bring together the collective strengths of seven comfort brands – Armstrong Air™, AirEase®, Concord®, Ducane™, Allied™, Allied Commercial™ and MagicPak® to give distributors and dealers the ultimate source for heating and cooling solutions. From compact residential applications to large commercial projects, Allied Air Enterprises redefines ease-of-business through breadth of product, resources and competencies unparalleled in the market.

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HVAC Age / Serial Decoder

Version 1

The first two characters of the serial number are ignored. The second two are the year (08 = 2008), and the first letter is the month of manufacture (E = May)

This is the current known serial number format.
Example Serial Number
2
 
1
 
0
Year
8
Year
E
Month
1
 
2
 
3
 
4
 
5
 

This would read as being manufactured in May of 2008.

Version 2

Focus on the final three characters of the serial number. The first character is the Month (E = May), the second character is the year (F = 1985). Ignore the final character.

This is a legacy serial number format (1978 - 1992).
Example Serial Number
C
 
1
 
2
 
3
 
4
 
5
 
E
Month
F
Year
C
 

This would read as being manufactured in May of 1985.

Version 3

The first two digits of the serial number are the production day (10th day), the third character is the month (E = May), and the fourth and fifth characters are the year of production (presented in reverse, so 27 = 72 for 1972).

This is a legacy serial number format.
Example Serial Number
1
 
0
 
E
Month
2
Year
7
Year
1
 
2
 
3
 
4
 
5
 

This would read as being manufactured on the 10th day of May, 1972.

Version 4

The final four characters are the focus. The first two digits are the year (23 = 2023), the second two digits are the week (45 = 45th Week).

This is a legacy serial number format.
Example Serial Number
0
 
0
 
1
 
1
 
1
 
2
Year
3
Year
4
Week
5
Week

This would read as 45th Week of Year 2023.

Contact Information for Allied
Phone Numbers

Customer Service
(803) 738-4000

Email Addresses

No email addresses on file.

Websites

Allied Air Enterprises
Warranty Information
Contact Allied

Addresses
Allied Air Enterprises
215 Metropolitan Drive
West Columbia, South Carolina 29170
United States
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