Recovery & Recycling
R-410A recovery equipment requirements, DOT cylinder specifications, recovery procedures for high-pressure systems, and the differences between recovery, recycling, and reclamation.
- Distinguish between recovery, recycling, and reclamation of refrigerants
- Select recovery equipment rated for R-410A high-pressure operation
- Perform liquid and vapor recovery from R-410A systems to EPA-required levels
- Apply DOT cylinder requirements and the 80% fill rule for R-410A
Lesson 1
Recovery, Recycling, and Reclamation Defined
Three Distinct Processes
The EPA defines three separate processes for handling used refrigerant. The R-410A safety exam tests your understanding of each.
Recovery is removing refrigerant from a system and storing it in an external container without necessarily testing or processing it. Recovery is performed before opening any system for repair.
Recycling is cleaning recovered refrigerant by passing it through filter-driers and oil separators to remove moisture, acid, and particulates. Recycled refrigerant can be reused in the same system or in equipment owned by the same owner. You do not need to send it to a reclaimer.
Reclamation is reprocessing refrigerant to meet AHRI Standard 700 purity specifications - essentially restoring it to virgin-quality. Reclamation can only be performed by an EPA-certified reclaimer, not by field technicians. Reclaimed refrigerant can be sold and used in any system.
Recovery
What: Remove and store in a container
Who: Any certified technician
Quality: No purity guarantee
Reuse: Same system only, or send for reclamation
Recycling
What: Clean with filter-drier and oil separator
Who: Any certified technician with equipment
Quality: Improved but not virgin-spec
Reuse: Same owner's equipment
Reclamation
What: Restore to AHRI 700 virgin purity
Who: EPA-certified reclaimer only
Quality: Meets new-refrigerant specifications
Reuse: Any system, can be resold
When Recovery Is Required
Under EPA Section 608, refrigerant must be recovered before:
- Opening a system for any repair that breaches the sealed circuit
- Disposing of equipment (scrapping an old condensing unit or air handler)
- Decommissioning a system permanently
The only exception is de minimis releases - the unavoidable small puff of refrigerant when disconnecting hoses after proper recovery. You are expected to minimize even these releases.
Recovery removes refrigerant into a container, recycling cleans it with filters for reuse by the same owner, and reclamation restores it to AHRI 700 virgin purity by an EPA-certified facility. Recovery is required before opening any system or disposing of equipment.