Understanding Refrigerants and Regulations

Front

What is a zeotropic refrigerant mixture?

Back

A mixture of components with different boiling points.

Front

What is the proper charging method for R-400 series blended refrigerants?

Back

Weigh the refrigerant into the high side of the system as a liquid.

Front

Which refrigerant is known for having a high-temperature glide and may easily experience fractionation? Options: R-22, R-134a, R-407C, R-410A

Back

R-407C

Front

What type of oil is most commonly used when retrofitting HCFC equipment to HFC refrigerants?

Back

Polyolester oil

Front

Which refrigerant is classified as a very high-pressure refrigerant at 104°F? Options: HFC-134a, HCFC-22, CO2 (R-744), HFC-410A

Back

CO2 (R-744)

Front

What is the purpose of the EPA's Significant New Alternatives Policy (SNAP) Program?

Back

To identify refrigerants with lower overall risks to human health and the environment.

Front

What must be done before retrofitting an HCFC system to use HFC refrigerant?

Back

Remove other types of oils before adding ester-based oil.

Front

Which refrigerant is exempt from the venting prohibition under EPA regulations? Options: R-22, HFC-134a, Ammonia, R-410A

Back

Ammonia

Front

What is the penalty for knowingly releasing non-exempt refrigerant from appliances as of 2017?

Back

$44,539 per day, per violation

Front

What must be done with disposable cylinders of CFCs, HCFCs, HFCs, or HFOs before discarding?

Back

Recover all remaining refrigerant and recycle the metal.