It is known that compressor oil will slowly coat the inside surfaces of air conditioner evaporator and and consenser coils thus reducing the thermal conductivity and consequently reducing the cooling efficiency. Over time, what is the typical percentage reduction?How much does air conditioner cooling efficiency decrease over time due to compressor oil fowling?
Although oil vapor from the compressor will enter the evaporator and condenser and condense, it is important to remember that A/C systems are closed systems... Therefore, as oil vapor is being leaked into the A/C system, it is also being returned to the compressor. I guess I can't really answer your question specifically. But in theory, at some point the efficiency loss peaks and levels out due to the fact that oil from the system is also being returned to the compressor.
It is also important to note that the distribution of some oil throughout the system is a desirable ';side-effect'; of the operation of the compressor, as it prevents the corrosion of the condenser and evaporator, as well as the piping in between.How much does air conditioner cooling efficiency decrease over time due to compressor oil fowling?
like any application, proactive maintenance remediation may improve performance
sometimes it makes not defference, if your application is near the edge of the envelope, address the causes for problems
the link is for air compressors, not air conditioner, but a/c usually does not have an issue
but that is my opinion and I don't know much
I think I have had nothing that could be measured. It also may depend on contaminates. I have had some last very long with no problem.
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