4 Refrigerant Recovery and Cylinder Management Free Online FlashCards

What does refrigerant recovery mean?

Recovering removes refrigerant from equipment and stores it in an external container; it does not require testing or cleaning.

How should recovery equipment be selected?

Use recovery equipment certified for the appliance category and refrigerant, and follow the equipment manufacturer’s instructions.

What kind of cylinder should receive recovered refrigerant?

Use an approved, serviceable recovery cylinder rated for that refrigerant. Never recover refrigerant into a disposable supply cylinder.

What should be checked before using a recovery cylinder?

Inspect cylinders for damage, serious corrosion, illegible markings, and leakage. Confirm suitability for the refrigerant and that required inspection or requalification is current.

What are two hazards of refrigerant exposure, and how can they be reduced?

Refrigerant can displace oxygen and cause cold burns on contact with liquid. Ensure adequate ventilation, protect skin and eyes, and keep it away from flames and hot surfaces.

What does refrigerant recycling do?

Recycling cleans recovered refrigerant, typically by separating oil and filtering or drying it, for reuse in equipment owned by the same person.

What distinguishes refrigerant reclamation?

Reclamation reprocesses and tests refrigerant to meet applicable purity specifications. Used refrigerant generally must be reclaimed by an EPA-certified reclaimer before it is sold as reclaimed refrigerant.

Does every system have the same required evacuation target?

The required evacuation level depends on appliance type, refrigerant, and applicable regulations. Verify the applicable level; do not assume one pressure target fits every system.

How should unknown or possibly contaminated refrigerant be handled?

Identify the refrigerant using equipment labels and service information. Keep unknown or potentially contaminated refrigerant separate and use a suitable process and equipment.

How can cylinder overfilling be prevented during recovery?

Connect the cylinder to a scale and monitor its weight and pressure during recovery. Never exceed its marked allowable fill weight.

How is the required evacuation level verified?

Use a suitable, calibrated gauge and the applicable procedure to verify that the required evacuation level has been reached before opening the circuit.

Why should different refrigerants be kept separate?

Mixing refrigerants can make recovery more difficult and costly, and may prevent ordinary recycling or reclamation.