A recovery unit relies on the small appliance's own working compressor to push refrigerant into a recovery cylinder. What type of recovery equipment is this?
a.A micron-rated vacuum pump
b.System-dependent (passive) recovery equipment
c.Self-contained (active) recovery equipment
d.A recycling machine with an internal distillation stage
Explanation
System-dependent, or passive, recovery equipment has no compressor or pump of its own and relies on the appliance's compressor or its internal pressure to move refrigerant out. Self-contained (active) equipment has its own compressor and does not need the appliance to run. Passive equipment may only be used on small appliances.
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Related questions on this topic
- A technician uses self-contained (active) recovery equipment on a household refrigerator whose compressor still runs. What minimum percentage of the refrigerant must be recovered?
- A window air conditioner has a burned-out, non-operating compressor. Using self-contained recovery equipment, what recovery level must the technician achieve?
- Instead of measuring a recovery percentage, a technician chooses to evacuate a small appliance to a fixed vacuum as allowed by the rule. What vacuum level satisfies the requirement?
- Self-contained (active) recovery equipment is best described by which of the following?
- A scrap yard receives old household refrigerators and vending machines for crushing. Before the units are disposed of, who is responsible for ensuring the refrigerant is recovered?
- Which of the following units would a technician correctly classify as a small appliance?
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