Using an approved simulator, in the laboratory, or aboard ship and given access to an operating refrigeration system.

Performance requirement

Behavior Standard
The student will: During assessment, the student shall, at a minimum:

Secure the refrigerant circuit

Close the receiver outlet valve

Pump down the receiver

Observe suction pressure

Secure the refrigeration compressor

Observe compressor stop on low pressure cut-out

De-energize the compressor

Close compressor suction and discharge valves

Secure associated equipment

Secure secondary refrigerant loop, if used

Secure box solenoid, if shutting down

Secure the cooling water supply

Close valves and secure pumps as required


Assessed in EN‑3213 Refrigeration.


  1. Table A-III/1 OICEW-A4.1
  2. NVIC 17-14 Task 4.1.A

Note: Not all steps are possible on all refrigeration systems.

See the Assessment Guidelines for additional specifications of behavior and standards.