Help needed with bitzer screw, please

[Tamir]

Hi guys,

I have a Climaveneta chiller runing with this bitzer screw
CSH-8591-140CVY-40P.

The compressor is loosing oil like crazy, any Ideas anyone?
Thanks
Tamir

[RANGER1]

Tamir,
Tell us a bit more about system.
Does it lose oil when running, or if cycled off?
What type of oil separator/s does it have, any coalescer type, is oil return working?
Is it getting floodbacks?
Is it a new system, has it worked OK in the past?

A few pictures etc

[Tamir]

HI Ranger,

its a climaveneta Italian chiller.
Yes its losing oil only when running, when the compressor shuts down the oil returns after a few minutes.
It has an internal oil separator (you can see in the pictures).
this compressor got a tiny overhaul , bearings and gasket replaced.

the system worked fine before.

Many Thanks
Tamir14455144561445714458

[The Viking]

Most likely issues;
- Lack of refrigerant
- Poorly adjusted EEV/TEV
- Oil line/flow issues

:cool:

[Tamir]

Hi Viking

I check all the above and they are fine.
Its the weirdest thing, the compressor can run 10 minutes and lose the oil or it can happen after 7 hours...

Its runing on r134a with solest170 oil..

Any chance that an jamed oil filter can cause the issue?

[RANGER1]

Hi Viking

I check all the above and they are fine.
Its the weirdest thing, the compressor can run 10 minutes and lose the oil or it can happen after 7 hours...

Its runing on r134a with solest170 oil..

Any chance that an jamed oil filter can cause the issue?



Tamir,
What about to much refrigerant washing oil out!
Check out expansion valve & bulb etc, superheat, liquid line solenoid, filter drier, water flow.