If moisture-laden oil is circulated in the system, it can lead to acid formation and corrosion of the internal metal components. Environmental and Regulatory Context.
Understanding Correct Viscosity for R134a PAG Oil
Chemical Compatibility and Function Polyalkylene glycol, or PAG oil, is the synthetic lubricant of choice for R134a refrigerant systems. The viscosity determines how easily the oil flows and how well it maintains a film between moving parts.
Visible debris or sludge exiting the compressor when it is removed for inspection. Unusual noises emanating from the compressor, such as knocking or grinding.
Understanding Correct Viscosity for R134a PAG Oil
Signs of Degradation or Failure A system suffering from degraded PAG oil will exhibit specific symptoms that alert the user to a problem. Installation Best Practices When servicing an R134a system, it is generally recommended to replace the PAG oil whenever the compressor is opened or replaced.
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