Has Your AC guy ever told you that you need to add Freon to your machine? Did you really need it? Today I will be sharing some info on what you need to know about Freon.


R-22: The old stuff. If your heating and cooling system was installed before 2009 there is a good chance this is the refrigerant your machine runs on. This
refrigerant is currently being phased out by the EPA due to the fact that when it leaks the gas depletes the ozone. R-22 is  expected to be gone by 2019.

R-410a: The new stuff also known as PURON. All new AC systems since 2010 are manufactured to run on PURON. R-410a does not contain bromine or chlorine which causes ozone depletion This refrigerant also allows for a higher SEER rating on your air conditioning and heating system.


The answer to this question is simple…..NEVER. Your heating and cooling system is a sealed circuit. The condensing unit outside pumps the Freon as a liquid to Your air handler where the evaporator coils change it from liquid to gas. The gas then proceeds back to the condensing unit where the condensing coils change the FREON back to liquid. If your AC guy tells you that you need to add FREON ask him why. There are two reasons you will be low either someone let it out or most likely you have a LEAK. Don’t let your AC company charge you for FREON every year without finding out if or why you actually need it!

Target PSI

*Pressures may vary up to 5 psi higher or lower due to outside temperature

R-22:           200 over 75

R-410a:     300 over 125