Refrigerant Circuit, Converting R12 To R134A And Servicing

For environmental reasons and on account of the corresponding legislation, refrigerant R12 can no longer be manufactured or supplied. Refrigerant R134a has been developed as a replacement for R12.

A/C systems developed and designed for R12 refrigerant cannot, however, simply be charged with refrigerant R134a. To ensure trouble-free A/C system function even after conversion, various components of the refrigerant circuit must be replaced.

An exact description of the conversion procedure and servicing information for converted refrigerant circuits can be found in the appropriate Repair Information: A/C System with Refrigerant R12 Parts 2 and 3. (This repair information is only available in hard copy).