A leaking field joint is confirmed in a system subject to refrigerant rules. What is the proper service sequence?
- ARelease the remaining charge
- BSeal the joint while pressurized with an open flame
- Recover, repair, test, evacuate, and recharge
- DTop off indefinitely
Why C is correct
Leak repair must protect workers, the atmosphere, and the refrigeration circuit. Recovery, repair, testing, dehydration, accurate charging, and records form a controlled process.