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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 8 E 1 2 3 4 5
This would read as being manufactured in May of 2008.

Year is Green, Month is Yellow.

How to translate Character to Month
A January
B February
C March
D April
E May
F June
G July
H August
J September
K October
L November
M December

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 F C
This would read as being manufactured in May of 1985.

Year is Green.

How to translate Character to Month
A January
B February
C March
D April
E May
F June
G July
H August
J September
K October
L November
M December
How to translate Character to Year
8 1978
9 1979
A 1980
B 1981
C 1982
D 1983
E 1984
F 1985
G 1986
H 1987
J 1988
K 1989
L 1990
M 1991
N 1992

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 2 7 1 2 3 4 5
This would read as being manufactured on the 10th day of May, 1972.

Year is Green, Month is Yellow, Day is Blue.

How to translate Character to Month
A January
B February
C March
D April
E May
F June
G July
H August
J September
K October
L November
M December

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 3 4 5
This would read as 45th Week of Year 2023.

Year is Green, Week is Light Blue.

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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