MACS 609 Certification Practice Exam

When two or more refrigerants are mixed, what action must be taken?

1. Dispose of it in regular waste

2. Send off-site to EPA certified reclaimer for reclamation or destruction

3. Store it safely in labeled canisters

4. Add more refrigerant to dilute

The correct answer is: Send off-site to EPA certified reclaimer for reclamation or destruction

When refrigerants are mixed, the proper action is to send the mixture off-site to an EPA certified reclaimer for reclamation or destruction. This is essential because different refrigerants can have varying characteristics and affect the efficiency and safety of cooling systems. Mixing refrigerants poses significant environmental risks and can lead to improper functioning of HVAC systems. By sending the mixed refrigerant to a certified reclaimer, the refrigerant can be properly processed to either recover usable components or ensure safe destruction, thus minimizing environmental impact and adhering to legal regulations. This action is in line with best practices for refrigerant management, ensuring safety, compliance with laws, and environmental responsibility. The other options do not address the necessary environmental protections or legal requirements for handling mixed refrigerants. Regular waste disposal or storing in canisters without appropriate handling protocols could lead to hazardous situations or regulatory violations. Adding more refrigerant only dilutes the mixture without resolving the underlying issues associated with mixing different refrigerants.