I changed a compressor saturday and purged N2 prior ro replacement and cap tube was open. After replacement of compressor and drier and evac. Charge system and start. Low site in vacume and side 80 psi. remove charge and purge with N2. found cap tube resticted. I cutcap tube back several times and this thing was pluged solid. The restricting stuff looked like some kind of lime deposit.
Did I do something wrong?
Unit. TRUE Prep table