"The importance of lubricants"
AUTOMOTIVE AIR CONDITIONING LUBRICANTS
A/C system lubricants are ones specifically
made for use in A/C systems.
The purpose of these special oils is to provide
lubrication for the compressor.
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ISO 32/68/100/170 & Universal
These oil series are fully synthetic lubricating fluids,
based on synthetic and biodegradable polyesters oils
(POE) with a particular anti-wear additive package designed specifically for use in refrigeration and air conditioning systems loaded with alternative refrigerants not detrimental to the ozone layer.
Lubricants for R-744
PAG OIL 68 / POE OIL 85
CO2 has much higher operating pressures and temperatures than medium pressure halogen refrigeration fluids and thus involves extreme mechanical constraints on moving components and bearings.
Consequently, in the event of the use of an unsuitable oil, premature wear of the system may occur as a result of insufficient lubrication and a leak with a loss of compression.
Basic POE molecules added or PAG will be more suitable for R-744 and may be suitable in subcritical and transcritical applications.