Efficiency of Air Cooled Chiller units by vintage

Year EER ≤ 1,800,000 Btu/hr EER > 1,800,000 Btu/hr Action
2024 10.4 10.4
2023 10.4 10.4
2022 10.4 10.4
2021 10.4 10.4
2020 10.4 10.4
2019 10.4 10.4
2018 10.4 10.4
2017 10.4 10.4
2016 10.4 10.4
2015 10.3 10.3
2014 9.6 9.6
2013 9.6 9.6
2012 9.6 9.6
2011 9.6 9.6
2010 9.6 9.6
2009 9.5 9.5
2008 9.5 9.5
2007 9.5 9.5
2006 9.5 9.5
2005 9.2 8.5
2004 9.2 8.5
2003 9.2 8.5
2002 9.2 8.5
2001 9.2 8.5
2000 9.2 8.5
1999 9.2 8.5
1998 9.2 8.5
1997 9.2 8.5
1996 9.2 8.5
1995 9.2 8.5
1994 9.2 8.5
1993 9.2 8.5
1992 9.2 8.5
1991 9.2 8.5
1990 9.2 8.5
1989 9.2 8.5
1988 9.2 8.5
1987 9.2 8.5
1986 9.2 8.5
1985 9.2 8.5
1984 9.2 8.5
1983 9.2 8.5
1982 9.2 8.5
1981 9.2 8.5
1980 9.2 8.5