Trane screw compressor chha

[GHAZ]

Hi guys need info on trane screw compressor CHHA and ERTHA chiller, any manuals or info would be grateful, this compressor is massive, thankyou

[centrecipew]

What is the Model Number?? I Have various files on these chillers.The compressor info is limited as there is very limited repair capabilities in the field. I am changing one over the weekend, with 52 500 hrs. Still running a treat, but suggested bearing overhaul as per manufacturer is at 50 000 hrs. The new compressor has been supplied under a service exchange program. I do have a lot of recommended service and controler info.

[GHAZ]

the chiller is ertha300