NOT ENOUGH: Bryan Jones, an installer at Fire and Ice Heating and Air Conditioning, Columbus, Ohio, ensures the charge is correct. A system with too little refrigerant will not cool/heat or dehumidify ...
Most air conditioners use one of two types of refrigerant: R-22 or R-410A. I've never paid any attention to this detail while inspecting houses because it didn't make much difference, but that's all ...