Bitzer Compressor

[Stretch79]

Hello guys,

Need some help please from yourselves who have experience on a CSH7573-90Y Bitzer compressors controlled by am inverter.

Have attended a site where they are suffering from high discharge temperatures. Recently carried out a coil clean to which they dropped around 20 degrees less than normal.

However, after this they started to go above 85 degrees, aware Bitzer state higher degrees but looks like compressor keeps tripping on high temperature sensor, has a new temp sensor and motor protection module when installed, these units do suffer air recirc but only bad in the summertime, oil level is good ok. Bit lost atm.

Looking into liquid injection for these, wondered if anyone had any opinions on this?