The Seized Compressor in Unit 4B
A maintenance technician holding only a Type I certificate works for a 12-unit apartment complex. Unit 4B's refrigerator - a 2004 model whose nameplate reads R-134a, 5.0 oz, hermetically sealed, no service ports - has a compressor that is electrically open; the box is warm and the compressor never starts. The landlord wants the unit dragged to the curb Friday and asks whether "the freon has to come out first, or can the scrapper deal with it." The technician has a self-contained recovery machine rated for HFCs, a piercing valve and gauge, and a 30-lb recovery cylinder (TW 22 lb, WC 30 lb) holding 6 lb of R-134a from a previous job. The scrapper says he will take the appliance as-is and "handle the gas."
1. What recovery target applies here, and does the failed compressor change how the technician should do the job?
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Classify the appliance first. Hermetically sealed, factory-charged, under 5 lb of refrigerant, not part of an MVAC - that is a small appliance, so Type I rules govern. The 5.0 oz (0.31 lb) charge is small, but nothing about the requirement is waived because the charge is small.
The dead compressor does change the method. System-dependent (passive) recovery depends on the appliance's own compressor to move refrigerant into the recovery vessel. This compressor is electrically open and will never run, so the technician must use the self-contained recovery machine, pulling through the piercing valve and, if the pressure stalls, warming the evaporator (a heat gun or a warm room - never a torch) or adding a second access point on the high side.
The endpoint. Recovery must reach 80% of the charge when the compressor is not operating and 90% when it is running; for small appliances manufactured on or after November 15, 1993, the recovery equipment must also be capable of 90%. A recovery that stops when the suction line "feels empty" is not a measured endpoint.
Whoever hauls it away. Letting the scrapper "handle the gas" is venting. The appliance must be evacuated before it leaves, and the final processor has its own obligation to verify refrigerant removal before shredding.
2. Does the technician have cylinder capacity, and what Section 608 paperwork is required for this job?
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Capacity check. Maximum net refrigerant in the cylinder = 0.8 × water capacity = 0.8 × 30 lb = 24 lb. It already holds 6 lb, leaving 18 lb of headroom - vastly more than the 0.31 lb in this refrigerator. The 80% limit is not bureaucratic: liquid refrigerant expands with temperature, and a liquid-full cylinder can rupture hydrostatically. Weigh the cylinder during recovery rather than judging by feel.
Recovery practicalities. With a dead compressor and a tiny charge, recovery will be slow and the pressure will fall off quickly; that is normal, not a sign the machine is broken. Keep the cylinder on a scale and watch the machine's inlet pressure rather than the discharge.
Paperwork. Small appliances are exempt from the Section 608 recordkeeping requirements - no invoice or service record is required for this recovery, and the technician does not have to file anything with the landlord. If the recovered refrigerant leaves the site for a reclaimer, document the transfer anyway so the reclaimer's records match what actually arrived.
3. The landlord wants the recovered R-134a put into the building's other refrigerator, a 2015 model, next month. Is that permissible?
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Same owner, properly recycled: allowed. Recovered refrigerant may be returned to the appliance it came out of, or placed in another appliance owned by the same person, provided it has been recycled (filtered, moisture and acid removed) and has not been mixed with any other refrigerant.
Conditions to verify before reuse.
- The cylinder is labeled R-134a and contains nothing else. Mixing refrigerants makes the whole cylinder unreclaimable and unusable.
- The charge passes an acidity/moisture check. This compressor failed electrically (open winding) rather than burning, so acid formation is less likely - but if it had been a burnout, sludge and acid would make the refrigerant unfit for another machine.
- The receiving appliance is designed for R-134a and its nameplate charge is known, so the reused refrigerant can be weighed in correctly.
What is not allowed. Refrigerant that changes ownership - sold, given away, or transferred to a different building's owner - must first be reclaimed to AHRI 700 by an EPA-certified reclaimer. The technician cannot sell "recycled" refrigerant to the landlord for equipment the landlord does not own, and cannot blend the leftover R-134a into a cylinder of unknown contents.