i really need help with a 4 year old modular chiller set up that has killed 4 out of 8 scroll compressors. r-22 . air cooled condenser and chiller not from same company. high side runs 350 to 380 psi while low side is mid to low 50's psi. 375psi vapor into condenser 345psi leaving condenser going into an 80lb receiver . any ideas.