4 Refrigerant Recovery Procedures Free Online FlashCards

What does refrigerant recovery do?

Recovery removes refrigerant from an appliance and stores it in an external container; it does not necessarily clean or test the refrigerant.

What does Section 608 prohibit during equipment service?

Section 608 prohibits intentional venting during service, repair, or disposal of stationary refrigeration and air-conditioning equipment in the United States.

How should recovery equipment be selected?

Use certified recovery equipment compatible with the refrigerant and appliance category. Flammable refrigerants require equipment specifically designed and approved for them.

What makes a recovery cylinder suitable and safe to fill?

Use an undamaged, refillable cylinder approved for recovery and rated for the refrigerant’s pressure. Monitor its weight on a scale and never exceed its permitted fill limit.

Why must recovered refrigerants be kept separate?

Keep different refrigerants separate. Mixing refrigerant types or unknown refrigerant with known refrigerant can contaminate the contents and complicate reuse or reclamation.

What precautions help protect technicians during recovery?

Wear appropriate eye and hand protection, provide ventilation, and keep ignition sources away when handling flammable refrigerants. Escaping liquid refrigerant can cause cold injury.

What must be considered when choosing a liquid- or vapor-recovery method?

Use the liquid- or vapor-recovery method appropriate to the appliance and machine. Do not send liquid into equipment that is not designed to handle it.

What example recovery endpoint applies to a high-pressure appliance charged with under 200 pounds?

For very-high-pressure appliances and high-pressure appliances charged with under 200 pounds, the example EPA table specifies a target of $0$ inches of mercury vacuum \(0\ \text{psig}).

How should recovery proceed when a leak prevents the required evacuation?

If a leak prevents the required evacuation, isolate leaking and non-leaking sections where possible. Evacuate non-leaking sections to the applicable level and leaking sections to the lowest attainable level, not above $0\ \text{psig}$.

What does “recovered refrigerant” mean?

Recovered refrigerant is refrigerant removed from an appliance and stored; this term does not imply that it has been cleaned.

When may recovered or recycled refrigerant be reused under Section 608?

Recovered or recycled refrigerant may be returned to the same appliance or used in other appliances owned by the same person.

What is generally required before used refrigerant is sold to a new owner?

Before used refrigerant is sold to a new owner, it generally must be reclaimed by an EPA-certified reclaimer.