Hi all! Although been registered for sometime never actually post much

Now i have a Frigosystem chiller that need to repair.
The model is a RACA 200 and it had a semi copeland model D4SA1 2000 in it burned out.
Burned out due to one of the suction valves completely dissapeared .

Costumer says that every 2-3 years the compressor burns out and needs to swap it, therefore hes not very happy... Already had to swap compressor 3 times

Im thinking of swapping for a bristol or bitzer compressor.

Has any of you guys ever came across this compressor problems on this type of chillers?