When I was a brewer, we retrofitted our chiller from R22 to R410A (had to change compressor oil to POE, but was otherwise a seamless transition). The techs from

When I was a brewer, we retrofitted our chiller from R22 to R410A (had to change compressor oil to POE, but was otherwise a seamless transition). The techs from the shop we contracted to do the changeover let all that R22 bleed off into the atmosphere because they forgot their reclamation cylinder.