Hi Jess,
U probably already know this but Chip-Con use "Refrigerant: Environmental friendly R134A".
HCF 134a
The production of R-22 or Chlorodifluoromethane is being phased out (pun intended)
Here is the info on Tetrafluoroethane (R134a)
http://www.dupont.com/suva/na/usa/aa/
Danfoss
http://www.danfoss-maneurop.com/inte...unction=refrig