Question

Describe the process of reclaiming refrigerant and the specific requirements that must be met before disposal.

Accepted Answer

Reclaiming refrigerant is the process of removing refrigerant from a system, cleaning it to meet specific purity standards, and storing it for reuse. The process begins by connecting a recovery machine to the refrigeration system. This recovery machine draws the refrigerant out of the system, passing it through filters and driers to remove contaminants like oil, moisture, and acids. The reclaimed refrigerant is then stored in a dedicated recovery cylinder. Before refrigerant can be disposed of, it must meet specific purity standards set by regulations, often adhering to ARI 700 standards. These standards dictate acceptable levels of moisture, acidity, oil, and other contaminants. To determine if the reclaimed refrigerant meets these standards, it is tested using specialized equipment, such as a refrigerant identifier and an acid test kit. If the refrigerant does not meet the required purity standards, it cannot be legally disposed of and must be sent to a reclamation facility for further processing to achieve the required purity level. Disposal requirements also mandate proper documentation. The type and amount of refrigerant, the date of recovery, the name of the technician or company performing the recovery, and the results of the purity tests must be recorded. This documentation ensures compliance with environmental regulations and provides a record of responsible refrigerant handling. If the refrigerant is ultimately deemed unusable even after processing, it must be disposed of according to EPA regulations, which typically involves sending it to a certified destruction facility where it is incinerated under controlled conditions to minimize environmental impact.

Home → All Courses → Engineering and Technology Courses → Building Systems Operations and Preventive Maintenance → Flashcard

Describe the process of reclaiming refrigerant and the specific requirements that must be met before disposal.