Agree with Dr. Most all condensers come precharged. However, there are actually some manufacturers that are sending out R-22 units uncharged. They are precharged with nitrogen/helium mix, and need to be charged by weight with R-22. Not sure if this is a loophole around the non manufacture law of 2010 for 22 units or what. Either way, the outside unit will tell the precharge, or nominal operationg charge (if unit is indeed uncharged) on the manufactures label. The charge will be given in oz (ounces). 16 oz to a lbs. NOW, that being said, you must be licensed to work with refrigerants, so I suggest calling in a licensed tech to set the system up. Good luck and please let us know how things work out.
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