Our History Frizair has been a pioneer in the Indian air conditioning industry, introducing the following to the Indian markets. 1957 Automobile air conditioners. 1962 2.0 Ton window air conditioners 1963 3.0 and 4.0 Ton windows / splits 1982 Enhanced fin surfaces 1983 Rotary compressors 1992 SmarTemp electronic thermostats 1993 C3 Microprocessor controlled air conditioners 1993 5 Ton (6000 Btu/Hr) air conditioners 2001 Mini Central Coolers 2002 10+ EER Aircons (New US DOE Standard) 2004 7 mm Heat Exchangers 2013 AL Tube Heat Exchangers