Identify before recovery
Confirm the refrigerant and equipment compatibility before connecting a machine.
Diagnose without unnecessary release
Use measurements and manufacturer procedures before opening the circuit.
Recover and keep refrigerants separate
Use approved equipment and isolate contaminated or incompatible material.
Verify and document
After charging, verify operation, leaks, labels, and shop records.
Common mistakes
- Connecting before identifying refrigerant
- Charging before repair decisions are complete
- Skipping final labels and records
Module progressNot completed