Per Montgomery County:
Refrigerators, freezers, air conditioners, dehumidifiers, and water coolers contain ozone depleting refrigerants (CFCs / Freon) that must be removed by a certified professional.
Large and small appliances containing Freon like full size refrigerators, freezers, and large air conditioning units, as well as dehumidifiers, water coolers, air conditioners and mini-refrigerators should be taken to a Freon certified handler. Some sites charge a fee. Drop-off sites include:
JDog Junk Removal & Hauling
Perkasie (Bucks County)
611 Metals - Drop Off: Appliances and Freon contained appliances,
PECO https://www.peco.com/WaysToSave/ForYourHome/Pages/Recycling.aspx OR CALL 1-888-573-2672
PECO will remove and pay you for working refrigerators, freezers and air conditioners.