Which sequence describes a compliant procedure for handling a refrigerant leak in an HVAC system?

• A. Immediately shut down the entire system and replace all components.
• B. Vent refrigerant to atmosphere to relieve pressure.
• C. Isolate area, evacuate if needed, locate and repair leak, recover/reclaim refrigerant, test, and document.
• D. Ignore leaks and operate.

Answer: (C)

Handling a refrigerant leak requires a controlled, stepwise response that protects people and the environment. Start by isolating the area to prevent exposure and contain the leak; evacuate if there’s a safety risk. Then locate the leak and repair it using proper tools and PPE. Recover or reclaim the refrigerant with approved equipment rather than venting, so emissions are minimized and regulatory requirements are met. After the repair, test the system to confirm the leak is fixed, and document the work, including leak location, repair actions, and refrigerant recovered, for compliance and maintenance records. Shutting down the entire system and replacing all components is excessive; venting to atmosphere releases harmful refrigerants and is illegal in many places; ignoring leaks is dangerous and noncompliant.