REFRIGERATION AND AIR CONDITIONING

As an EN3, you have learned the principles of refrigeration and air conditioning; the components and accessories that make up the system; and how to start, operate, and secure refrigeration and air-conditioning plants. As an EN2, you will perform routine maintenance jobs, such as cleaning, lubricating, troubleshooting, servicing the system, using correct procedures for leak detecting, and charging the refrigeration and air-conditioning plants. As you advance in rate, you will be expected to have a greater knowledge of the construction and operating principles of refrigeration and air-conditioning plants. You will be required to perform more complicated maintenance jobs, to make repairs as required, and to determine the causes of inefficient plant operation and accomplish the necessary corrective procedures. This chapter provides some general information on the construction and maintenance of refrigeration and air-conditioning equipment and the detection and correction of operating difficulties.

Refer to the manufacturers technical manual for details of the plant on your ship. If you have any questions about the basic theory of refrigeration and air conditioning, refer to EN3, chapters 16 and 17.