Industrial Ammonia Refrigeration Level II

This class is designed to provide the Industrial Ammonia Refrigeration Operator with a more in-depth understanding of the theory and practical knowledge required to successfully operate today’s more sophisticated and demanding systems. Class material and training is based on Refrigeration Engineers and Technicians Associations, (RETA) material.  The class consists of two sections, a 20-hour, classroom session followed by a 20 hour hands-on laboratory session, for a total of 40 hours. At the conclusion of the course the RETA Operator 2 test is administered. Upon completion of the course and passing the test, credit for this class is 36 professional development hours and 3.6 continuing education units. All texts and material needed for the class are included with the purchase of the class.

Participants must show proof of completing an approved hands-on Level I prior to participating in Level II.

Topics to be covered include:

• Heat flow through materials
• Enthalpy, the Mollier chart and its uses
• Psychometrics, how moisture in the air effects system performance
• Direct Expansion Systems
• Automated System Operation
• Two Stage and Cascade Systems
• Pumped Liquid Recirculation Systems
• Single stage vs two stage operation
• Secondary Coolant Systems
• Data Logging and Analysis
• Gravity flooded Systems
• System Efficiency
• Kilowatt hour calculations
• Horsepower calculations
• Cost of operation

The course is taught 7am – 5:30pm Monday – Thursday.
A working lunch will be provided Wednesday and Thursday while in the lab.