Does ENVIRO-SAFE require retrofitting?
No! ENVIRO-SAFE ES-12a is a direct drop-in R-134a replacement. It requires no retrofitting or redesigning of the refrigeration system because it is completely compatible with all the materials, hoses, O-rings, seals and oils (mineral, pag or synthetic) in all systems. The savings can be enormous! If you have an automotive R-12 system you must change the two vehicle fittings to the 134a type fittings and properly remove any freon in accordance with EPA procedures. Changing the fittings can be easily done by screwing on (over the existing R-12 fittings) R-134a adapter fittings which we offer on our ENVIRO-SAFE Prices page. How do I install ENVIRO-SAFE? There are no new procedures or techniques to learn! The same equipment and gauges are used. The refrigeration system is charged in the same manner as with the refrigerant being replaced using approximately the same pressure levels. (Note: ENVIRO-SAFE ES-12a, ES-22a & ES-502a pressure on the high side may run up to 15 psi lower than what yo
