View Full Version : Emerson Traxoil Oil Management OM3-120 Modules

27-09-2016, 07:12 PM
Hi Refrigerates Techs,
Anyone discover any malfunction with the Traxoil OM3-120 modules of Emerson / Copeland.
We encounter frequently failures with this oil level modules, and the feedback from the supplier is that humidity enters the modules by the screws of the 2 solenoids what's their failure analyses.:confused:
The failures will mostly give a low oil level alarms (when level is fine), and sometimes they really completely broken (No LED's activated anymore) what's gives a big effect on the plant performance.


Modules should have a IP65 rating, but really have my doubts about this rating as units are installed in a clean and dry machine room and still fail on this humidity.
They installed on a skid with several frequency drive controlled DMW Copeland 6TJ1-250X compressor for R507, and there could be a relation with compressor breakdowns as well (unexpected overfilling of the compressor with oil ?)

Thanks your thoughts guys to get this sorted out,

27-09-2016, 07:33 PM
Don't work with that stuff these days but when I did, only came across one fault.
One pack had a few with dodgy loom as shown on the photo.
Cheers, Andy.

27-09-2016, 08:07 PM
Thanks Andy,
But what is the alternative in the market for a proper oil level control system with 8 compressor on one skid ?
A mechanical float ?

27-09-2016, 09:29 PM
Never had any bother with these either except for the odd bad din plug, but if you are looking for alternatives henry tech make a similar one called optronic and castel make one called 5650.

24-10-2016, 04:48 PM
Our supplier offer an alternative, the Electronic Oil Level
Regulators ERM 5 / ERM 5-CDH from the German supplier ESK Schultze GmbH. Someone any experience with this ?