HVAC CORE EPA
Home > Preview
The flashcards below were created by user
on FreezingBlue Flashcards.
What is the prefered oil to be used with HFC-134a ?
The lubricant most used with HFC-134a are the polyolesters or "ester" based.The ester based oils are hygroscopic,meaning they readily absorb moisture
Can ester based oils be mixed with other oils?
NO, no oils, lubricants or refrigerants should be mixed
What does "hygroscopic" mean ?
Hygroscopic means it is an ester based oil that readily absorbs moisture
What lubricant type is recomended for use with a ternary blend?
Polyolsters or ester based oils are recomended with a ternary blend another lubricant type , the alkylbenzene type is coming into use for some ternary blends containing HCFC's
What would you like to do?
Home > Flashcards > Print Preview