15.5 Safe Disposal Requirements Equipment that is typically dismantled on site before disposal (commercial and industrial equip- ment) must have the refrigerant recovered in accordance with EPA requirements for servicing. Equipment that typically enters the waste stream with the charge intact (auto air conditioners, domestic refrigerators, room air conditioners) is subject to certain safe disposal requirements. The final person in the disposal chain (junk- yard or landfill owner) is responsible for ensuring refrigerant is recovered from equipment before the equipment’s final disposal. However, persons “upstream” may remove the refrigerant and provide documentation of its removal to the final person if it is more cost-effective. refrigerant must be reclaimed. Reclaiming requires cleaning the refrigerant to the Air Conditioning and Refrigeration Institute (ARI) 700 standard of purity and chemically analyzing the restored refrigerant to verify that it meets the standard. Reclaiming is a process normally available only at a manufacturing or reprocessing facility. See Figure 15-7. ROBINAIR Refrigerant Recycling System Purge line 120v Low-pressure gauge Inlet valve Inlet fitting Vacuum fitting Equalization valve Outlet fitting Moisture indicator Control panel High-pressure gauge Inlet filter Outlet valve Outlet filter A B Thermal Engineering Robinair Mfg. Corp. Figure 15-6. Recycle units. A—A recycle unit removes contaminants from a refrigerant to allow reuse. B—A recovered refrigerant charge is recycled outside of the refrigeration system. A liquid pump circulates liquid through filters and returns it to the cylinder. Van Steenburgh Engineering Laboratories, Inc. Figure 15-7. A reclaim unit is used to restore refrigerant to its original purity. 264 Heating and Cooling Essentials Copyright Goodheart-Willcox Co., Inc.