6 Type I: Small Appliances Free Online FlashCards

What qualifies as a small appliance under Type I?

A small appliance is factory-manufactured, charged, and hermetically sealed, with 5 pounds (2.27 kg) or less of refrigerant.

When is Section 608 certification generally required for small-appliance work?

A technician who may disturb the refrigerant circuit generally must hold the appropriate Section 608 certification.

Does the disposal-related certification exemption eliminate the duty to recover refrigerant?

EPA exempts small appliances from the certification requirement for refrigerant recovery when preparing them for disposal, but refrigerant still must be properly recovered.

What recovery level applies when recovery equipment was made before November 15, 1993?

Recover at least 80% of the refrigerant, or use the alternative evacuation option of 4 inches of mercury vacuum.

What does the 4-inch mercury vacuum option measure?

It is a vacuum reading relative to atmospheric pressure, not an absolute pressure reading.

How does self-contained recovery equipment remove refrigerant?

Self-contained, or active, equipment uses its own compressor or another means to remove refrigerant; it does not rely on the appliance compressor.

What should you do with a working compressor during passive recovery?

Operate the compressor when using system-dependent recovery equipment on an appliance with a working compressor.

How should you identify a refrigerant before connecting recovery equipment?

Check the appliance label and service information before connecting equipment. Pressure–temperature comparisons can help diagnose a discrepancy, but are not a substitute for proper identification.

How can technicians prevent cross-contamination and refrigerant emissions?

Use compatible equipment and containers, do not mix refrigerants in a recovery container, and do not knowingly vent refrigerant during service; recover it instead.

What must you never do to a hermetic compressor under vacuum?

Never energize a hermetic compressor while it is under vacuum.

What recovery level applies to post-November 15, 1993 equipment with a functioning compressor?

Recover at least 90% of the refrigerant, or evacuate the appliance to 4 inches of mercury vacuum.

What recovery level applies to post-November 15, 1993 equipment with a nonfunctioning compressor?

Recover at least 80% of the refrigerant, or evacuate the appliance to 4 inches of mercury vacuum.