Understanding Refrigerant Oils

Front

What type of lubricant is most commonly used with HCFC binary and ternary blends?

Back

Synthetic alkylbenzene lubricant

Front

When retrofitting HCFC equipment to HFC refrigerants, which type of oil is most commonly used?

Back

Polyolester oil

Front

What must be done before adding ester-based oil to an HCFC system being retrofitted to HFC refrigerant?

Back

Remove other types of oils from the system

Front

Why must care be taken when using ester-based oils?

Back

They are very hygroscopic

Front

What does it mean for an oil to be hygroscopic?

Back

It absorbs moisture from the air

Front

Which type of oil cannot be mixed with any other type of oil?

Back

Polyolester oil

Front

What is the primary concern when storing ester-based oils?

Back

They can absorb moisture through some containers

Front

What is the composition of HCFC binary blends?

Back

Two-part

Front

What is the composition of HCFC ternary blends?

Back

Three-part

Front

Which of the following is NOT a characteristic of ester-based oils? They are hygroscopic, They can be mixed with other oils, They are used in retrofitting HCFC systems, They require careful handling

Back

They can be mixed with other oils