Assessment OICEW-5-1F

Start fresh water generator

Assessed in EN-4231 Sea Term IV: Marine Engineering

Recommended Evaporator Start-up Procedure (TS Enterprise Specific)

Check that the following valves are open:

Check that the following valves are closed:



Turn on:

Salinity panel (insure 3 way dump valve is tripped to bilge)



Distillate pump, and regulate level by throttling discharge valve

Line up:


Using an approved simulator, in the laboratory, or aboard ship and given access to a fresh water generator.

Performance Requirements

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

Identify the valves and pumps associated with the freshwater generator


  • all associated pumps
  • valves required for startup

Start the freshwater generator

follow the ship specific evaporator starting procedure provided during training

Line up the discharge to meet operational requirements

Before proceeding:

  • check that selected tank is not full
  • state salinity limits for tank selected
  • check that discharge salinity is within limits

Operate the freshwater generator until operations stabilize


  • discharge salinity
  • shell vacuum
  • feed temperature
  • liquid levels
  • pump operations
  • chemical feed

Supports Table A-III/1 officers in charge of an engineering watch

Competence Knowledge, Understanding & Proficiency Task

Operate main and auxiliary machinery and associated control systems

A4.1 Basic construction and operation principles of machinery systems, including:

  1. marine diesel engine
  2. marine steam turbine
  3. marine gas turbine
  4. marine boiler
  5. shafting installations, including propeller
  6. other auxiliaries, including various pumps, air compressor, purifier, fresh water generator, heat exchanger, refrigeration, air-conditioning and ventilation systems
  7. steering gear
  8. automatic control systems
  9. fluid flow and characteristics of lubricating oil, fuel oil and cooling systems
  10. deck machinery

Start fresh water generator

Published: 2016-10-28-04:00