Understanding Refrigerant Management Processes

Front

What does the process of "recovery" involve in the context of refrigerants?

Back

Removing refrigerant from a system and storing it in an approved container.

Front

Which of the following is true about recycled refrigerant? It can be sold to any owner., It must meet AHRI 700 Standards before use., It is cleaned using oil separation and filter-driers., It is processed to a level equal to new product specifications.

Back

It is cleaned using oil separation and filter-driers.

Front

What is the purpose of reclaiming refrigerant?

Back

To process refrigerant to a level equal to new product specifications.

Front

What is required for refrigerant recovery and/or recycling equipment manufactured after November 15, 1993?

Back

It must be certified and labeled by an EPA-approved equipment testing organization.

Front

Which type of recovery device uses components in the appliance to capture refrigerant?

Back

System-dependent (passive)

Front

Why should long and small diameter hoses be avoided during refrigerant recovery?

Back

They cause excessive pressure drop and increase recovery time.

Front

What should a technician do if servicing systems that use different types of refrigerants?

Back

Have a separate recovery cylinder for each type of refrigerant.

Front

What is the most effective method to determine the general area of a small refrigerant leak?

Back

Using an electronic or ultrasonic leak detector.

Front

What is the purpose of dehydrating a refrigeration system?

Back

To remove water and water vapor.

Front

What indicates that dehydration of a refrigeration system is complete? Options: The vacuum gauge shows a pressure of 1000 microns. The system holds a vacuum of 500 microns or less. The pressure steadily rises after evacuation. The system is pressurized with dry-nitrogen.

Back

The system holds a vacuum of 500 microns or less.