**Manufacturer: Centurion **
Model#: AC042X1021G
Serial#: W0D5894390
Capacity: 3.5 Ton
How do I read the age for this one?
I believe Centurion is a Carrier product, but this info doesn’t seem to go with your serial number written down. I can’t see an ANSI date on the picture, did you?
Carrier
Carrier has used several different codes at different plants. Information below refers to commonly used codes.
Capacity: Commonly found in the last three to five digits of model number, sometimes in 100s of Btus – sometimes in tons
Example:
001 = 1.5 ton, 002 = 2 ton, 003 = 2.5 ton, 004 = 3 ton, 004-5 = 3.5 ton,
005 = 4 ton, 006 = 5 ton
Or
18xx = 1.5 ton, 24xx = 2 ton, 30xx = 2.5 ton, 36xx = 3 ton, 42xx = 3.5 ton,
48xx = 4 ton, 60xx = 5 ton
Or
14xx = 1 ton, 18xx = 1.5 ton, 024 = 2 ton, 030 = 2.5 ton, 036 = 3 ton,
042 = 3.5 ton, 048 = 4 ton, 060 = 5 ton
Age: Through the 1960s Carrier used the first digit of the serial number to indicate the year of manufacture. Example: 3xxxxx = 1963, 4xxxxx = 1964, 5xxxxx = 1965, etc.
Beginning in 1970 Carrier began to use a letter followed by a single digit year.
Example: A1 = January 1971, B2 = February 1972,
M5 = December 1975
Note: No letter I
A=Jan
B=Feb
C=Mar
D=Apr
E=May
F= Jun
G= Jul
H=Aug
J=Sept
K=Oct
L=Nov
M=Dec
More recently Carrier has simplified things using the first four digits of the serial number to signify the age, where the first two digits indicate the week and the third and fourth digits indicate the year of manufacture (similar to Bryant).
Example: 3298xxxxxx = 32nd week of 1998