If moisture-laden oil is circulated in the system, it can lead to acid formation and corrosion of the internal metal components. The primary role of PAG oil in an R134a system is to lubricate the moving parts of the compressor.
Ensuring Proper R134a PAG Oil Compatibility for Optimal System Performance
Noticeable reduction in cooling performance despite adequate refrigerant levels. PAG oil is hygroscopic, meaning it absorbs water from the air.
Keeping the oil capped and stored in a dry environment before use is a standard professional practice. Identifying the Correct Viscosity Not all PAG oils are created equal, as they are available in different viscosity grades to suit various system designs and climate conditions.
How to Verify R134a PAG Oil Compatibility in Your System
However, it also serves to carry heat away from the compressor and helps to seal the internal components by maintaining the flexibility of the seals and hoses. If the wrong lubricant is introduced, it can lead to immediate system failure due to inadequate lubrication of the compressor or the formation of sludge that blocks the expansion valve.
More About R134a pag oil
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