A technician recovers the charge from a system whose compressor suffered a motor burnout. What should happen to that recovered refrigerant?
Correct Answer
C) It should be kept in a separate cylinder marked as contaminated and sent to a certified reclaimer
Refrigerant that came out of a burnout carries acid, moisture and breakdown products from the failed motor. Putting it back into the repaired system will attack the new compressor, and moving it to another system spreads the contamination. Blending it into a shared cylinder ruins whatever clean refrigerant was in there. The right handling is to recover it into its own labeled cylinder and send it to a certified reclaimer, where it can be processed back to the industry purity standard before it goes into anyone's equipment again.
Why This Is the Correct Answer
Contaminated refrigerant has to be processed to the industry purity standard before it can be used in equipment belonging to a different owner, and reclamation is the only process that does that. Segregating it into a marked cylinder keeps the contamination from spreading and tells the reclaimer what they are receiving.
Why the Other Options Are Wrong
Option A: It may be returned to the same system once the replacement compressor and driers are installed and started
Acid and moisture in a burnout charge attack the new compressor's windings and oil. Field equipment cannot remove acid, so putting that charge back shortens the life of the repair whatever driers are fitted.
Option B: It should be added to the shop's bulk recovery cylinder so the contamination is diluted down
Diluting contamination does not remove it. Mixing a burnout charge into a bulk cylinder turns a small problem into a large one and can push the entire cylinder out of specification.
Option D: It may be reused in any other system that runs the same refrigerant and oil
Moving recovered refrigerant into a different owner's system requires reclamation first, and a burnout charge is the last thing to send anywhere. Matching refrigerant and oil does not make it clean.
Memory Technique
Burnout charge gets its own bottle and its own trip to the reclaimer. Never back into a system, never into the shared can.
Reference Hint
40 CFR 82.157: refrigerant used in another owner's equipment must be reclaimed to the industry purity standard by a certified reclaimer.
More epa-608-type-2 Questions
A walk-in cooler condensing unit holds a full charge of twenty-five pounds of R-404A, which is below the fifty pound threshold that brings an appliance under the leak repair provisions. What still applies to this unit?
An office building has thirty water source heat pumps on a common water loop, and each one left the factory assembled, hermetically sealed and charged with four pounds of R-410A. How is one of those units classified?
A data sheet for an unfamiliar refrigerant lists a boiling point of about fifty-five degrees Fahrenheit at atmospheric pressure. What does that tell a technician holding Core and Type II certification?
A technician holds Core, Type I and Type III certification and is sent to recover the charge from a twenty ton rooftop unit charged with R-410A. What does that combination of sections allow on this job?
A fleet garage technician holds only the vehicle air conditioning certification issued under Section 609 and is asked to recover the charge from the shop's own rooftop air conditioner. What does that credential allow?
A split system's outdoor unit, indoor coil and the line set the installer ran and brazed between them are being considered. For the purposes of the refrigerant rules, what makes up the appliance here?
On a new installation the line set is brazed to a factory charged outdoor unit and an indoor coil shipped under a nitrogen holding charge, with the outdoor unit's service valves still closed. What does the recovery requirement call for before that brazing?
A rooftop unit's data plate has weathered until the charge figure cannot be read, and the technician needs the full charge to place the appliance under the evacuation and leak provisions. Where should that figure come from?
A computer room air conditioning unit holds forty pounds of R-407C and connects to a remote air cooled condenser through refrigerant piping run and brazed by the installer. How is that unit classified?
A shop's office manager, who holds no technician certification, is sent to a supply house to pick up a new recovery machine for the commercial crew. What does the sales restriction require at that counter?
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