I have a 30 Xa air cooled carrier chiller, the economizer has had leaks occur on the exit to the compressor around the stainless steel stub. The copper pipe work has also cracked around the pressure relief valve.

It has been replaced and 5 months later the economizer has another leak on the new economizer in the same spot. The compressor has been monitored at different hz to check for unwanted vibration.

Has anyone had the same issue or can shed any light on the above problem?