Type I — Small AppliancesQuestion 84 of 240
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?
a.10 inches Hg vacuum
b.500 microns absolute
c.15 inches Hg vacuum
d.4 inches of mercury (Hg) vacuum
Explanation
As an alternative to the 80% or 90% recovery levels, the technician may evacuate a small appliance to four inches of mercury vacuum. Reaching 4 inches Hg vacuum is treated as meeting the recovery requirement. This gives a simple, measurable target for small sealed systems.
Law Reference: 40 CFR §82.156Practice all 240 questions free — no signup required.
Related questions on this topic
- A technician is deciding whether a household unit qualifies as a 'small appliance' under Section 608. Which description matches the EPA definition of a small appliance?
- 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?
- 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?
- 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?
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