Hello everyone!!
We have a chiller unit installed with a screw compressor.
Recently we have done plugged the copper tubes and did the pressure test. The pressure was holded up for a day.
Started the compressor with new expansion valve and drier, but the new tubes have been leaked only after 3 days.
What can be the possible causes of tubes leakage ? Is there a same reason for first time and second time tube leakage ?