How can I tell the age of a Unitary Products air conditioner or heat pump from the serial number?
Saturday, April 20, 2019
There are two different serial number formats for Unitary Products. Up until 2004, the third letter of the serial number was used to denote year of manufacture by the letter code below:
A = 1971, 1992. B = 1972, 1993
C = 1973, 1994. D = 1974, 1995
E = 1975, 1996. F = 1976, 1997
G = 1977, 1998. H = 1978, 1999
J = 1979, 2000. K = 1980, 2001
L = 1981, 2002 M = 1982, 2003
N = 1983, 2004 P = 1984
R = 1985 S = 1986 T = 1987
V = 1988. W = 1989. X = 1990
Y = 1991
So the serial number below indicates that it was manufactured in 1996, based on condition of the unit.
From 2004 to the present, the first two numbers in the serial number, located at the second and fourth characters, are the year of manufacture. So this serial number shows that it was manufactured in 2009.
To determine the size in tons of a Unitary Products system, see our blog post How many tons is my Unitary Products air conditioner or heat pump? For the age of another brand or manufacturer, go to our blog post How do I determine the age of my air conditioner?
To learn more about heating and air conditioning systems, see these other blog posts:
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