Hanbell Maintenance
Version 1.0
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HANDLING POE OILS
Please read as improper handling can cause compressor
failure and void the compressor warranty.
POE oils are more hygroscopic than mineral oils, so exposing POE oils to air will result in their
absorbing moisture quicker than mineral oils. When POE oils are exposed to moisture and heat,
they may react, forming acid that is harmful to the system. If a POE system is open for the same
amount of time service technicians are used to having mineral oil systems open, there is a much
greater chance of moisture contamination of the oil and, consequently, downstream system
concerns.
As a result, it is imperative that contractors keep containers of POE oils sealed, except when the
oils are actually being dispensed. POE oils should also be stored properly in their original
container because many plastics used to package oils are permeable to moisture. It is also
important to keep compressors and systems closed, except when work is actually being done on
the equipment, and to filter out undesirable contaminants. This can be achieved with proper
installation and service techniques as well as the use of correct filters and driers.
Once moisture is in the oil it is extremely difficult to remove, even under a high vacuum it can
take many hours to reduce the level of moisture. Several filter drier changes should be planned
when replacing a compressor. Often an oil change and filter driers are required to correct the
problem.
Oil should be sampled once a year and sent to an oil testing lab.
High moisture and acid levels will cause coppering in the slide chamber and will cause
premature slide failure. In extreme cases copper will be deposited on the compressor screws and
cause high noise levels and compressor failure. High acid levels will also cause compressor
motor failure.
Any questions or concerns please contact MCS Controls.
239-694-0089
MCSCONTROLS.COM
