A shop suggests saving money by plumbing a compressor salvaged from a scrapped refrigerator to a recovery cylinder, and using that arrangement to pull charges out of small appliances. What is wrong with the idea?
Correct Answer
D) A shop built rig is not certified equipment, and certified equipment is required
Recovery from an appliance has to be done with equipment that has been certified by an EPA approved testing organization against the applicable standard. A rig assembled in the shop has never been tested and cannot be certified, so using it is a violation no matter how well it happens to work. There are practical objections too, since a salvaged compressor has no oil separator, no relief protection and no means of preventing the cylinder from overfilling, but the regulatory objection stands on its own without any of them.
Why This Is the Correct Answer
The requirement is for certified recovery equipment, and certification is granted by an approved testing organization to a manufactured design. A shop assembled arrangement has no certification and cannot obtain one, so it may not be used to recover refrigerant regardless of how quickly it empties an appliance or how carefully the shop documents its behaviour.
Why the Other Options Are Wrong
Option A: The salvaged compressor is too small to reach the level small appliances require
Capability is not the issue. Even a rig that reached the required level every time would still be uncertified equipment.
Option B: The arrangement is acceptable if the shop records the level it can actually reach
Self documentation cannot substitute for certification by an approved testing organization, which is what the rule specifically calls for.
Option C: The arrangement is acceptable only where the refrigerant goes to a reclaimer
The destination of the refrigerant has no bearing on the equipment requirement, which attaches to the act of recovering it.
Memory Technique
You cannot certify your own homework.
Reference Hint
Recovery must be performed with equipment certified by an EPA approved testing organization.
More epa-608-type-1 Questions
An under-counter ice maker is one factory-sealed cabinet, while a modular ice machine head is joined to a remote condenser by field-run tubing. What certification does servicing the modular machine's circuit require?
A technician recovers refrigerant from a small appliance using a recovery machine that was manufactured in 1991. What recovery level must that older equipment achieve?
Two technicians recover from identical refrigerators with working compressors, one using a 1991 recovery machine and the other a 2015 machine. Why do their required recovery levels differ?
System-dependent recovery equipment may be used only on appliances that normally hold up to what amount of refrigerant?
What feature defines a self-contained recovery unit and sets it apart from the system-dependent kind?
When system-dependent recovery equipment is used on a small appliance whose compressor still runs, how can that working compressor be put to use?
Recovery from a small appliance has slowed down and the pressure is barely moving. What accepted technique helps drive the remaining refrigerant out?
After the recovery unit stops pulling on a small appliance, how does a technician confirm that the recovery is actually complete?
A sealed small appliance offers no service port at all. What has to happen before recovery equipment can be connected to it?
As refrigerant from a string of small appliances collects in a recovery cylinder, what fill limit applies to that cylinder?
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