AC_ABI
17-01-2012, 09:53 AM
Hi All,
This is my first post and i apologise in advance if i am duplicating, but i have searched various terms for at least an hour and cannot find an answer to my query!
I am receiving this information second hand from one of my engineers so forgive me if my knowledge of the situation is a bit vague!
I have a Trane ERTAA213 Chiller and it is having a problem with tripping on low oil flow, however it only seems to be tripping on "pump down" upon achieving setpoint. The oil diff switch has been replaced already and it seemed to run ok for a few days but then the fault reared its ugly head again!
The oil solenoid valve and coil have been checked and appear to be working ok, and the next step appears to be to replace the oil + filter (which in good practice should have been done when the diff switch was replaced). :(
The problem being that i have also heard that there are certain oil ports / sliders in the compressor itself that could require replacement which cause the same fault!
I have also been told that this can be a complicated change and only has approx 70% success rate, if done wrong its bye bye compressor! :rolleyes:
Does anyone know a lot about these chillers and if so could you point me in the right direction, as i dont want to keep going back to the same fault.
Any help would be greatly appreciated!
Regards
This is my first post and i apologise in advance if i am duplicating, but i have searched various terms for at least an hour and cannot find an answer to my query!
I am receiving this information second hand from one of my engineers so forgive me if my knowledge of the situation is a bit vague!
I have a Trane ERTAA213 Chiller and it is having a problem with tripping on low oil flow, however it only seems to be tripping on "pump down" upon achieving setpoint. The oil diff switch has been replaced already and it seemed to run ok for a few days but then the fault reared its ugly head again!
The oil solenoid valve and coil have been checked and appear to be working ok, and the next step appears to be to replace the oil + filter (which in good practice should have been done when the diff switch was replaced). :(
The problem being that i have also heard that there are certain oil ports / sliders in the compressor itself that could require replacement which cause the same fault!
I have also been told that this can be a complicated change and only has approx 70% success rate, if done wrong its bye bye compressor! :rolleyes:
Does anyone know a lot about these chillers and if so could you point me in the right direction, as i dont want to keep going back to the same fault.
Any help would be greatly appreciated!
Regards