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Módulo 6 de 8 120m 15 exam Qs

Refrigerant Recovery for Light Commercial Equipment

EPA-compliant refrigerant recovery from light commercial equipment including required vacuum levels, recovery machine operation, cylinder management, and documentation requirements.

  • Perform EPA-compliant refrigerant recovery from light commercial systems to required levels
  • Operate recovery machines and manage recovery cylinders safely
  • Determine correct recovery requirements based on equipment type and charge size
  • Document refrigerant recovery and disposal per EPA Section 608 regulations

Lección 1

EPA Recovery Requirements for Light Commercial Equipment

Section 608 Recovery Mandates

Before opening any refrigerant system for repair, the technician must recover refrigerant to EPA-required levels. The specific requirement depends on the type of equipment and whether the recovery machine was manufactured before or after November 15, 1993.

0 psig
Required Level - High Pressure Equipment
90%
Required Recovery - Systems With Known Leak
80%
Max Cylinder Fill (by weight)
$69,733
Max EPA Fine Per Day Per Violation (2026)

Most light commercial equipment uses high-pressure refrigerants (R-134a, R-404A, R-290) and requires recovery to 0 psig before the system can be opened. For systems with known leaks that make holding 0 psig impossible, recover to the maximum extent achievable.

When Recovery Is Required

Recovery is required before:

  • Opening any part of the refrigerant circuit for repair (compressor replacement, TXV service, cap tube replacement)
  • Disposing of any appliance containing refrigerant (scrap, decommission)
  • Making any repair that requires cutting into refrigerant-containing piping

Recovery is not required for:

  • Self-contained equipment with less than 200 grams of refrigerant that has been pressure-tested and verified to be free of contaminants (certain small appliances)
  • Systems that have already lost their entire charge through leaks (no refrigerant remaining to recover)
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Venting Is Illegal

Knowingly venting any regulated refrigerant (R-134a, R-404A, R-407C, R-410A, and HFC blends) is a federal violation under Section 608. The EPA can impose fines up to $69,733 per day per violation (2026 inflation-adjusted); subsequent violations can reach $209,202 to $214,637. Even small releases during hose disconnection (de minimis releases) should be minimized. The only substances that can be legally vented are CO2, nitrogen, water, ammonia, and hydrocarbons - though hydrocarbon venting has safety concerns.

Key Takeaway

Recover refrigerant from all light commercial equipment to 0 psig before opening the system for repair - venting any regulated refrigerant is a federal violation carrying fines up to $69,733 per day (2026 rate).