Individuals can identify and describe the refrigeration cycle for medium-and low-temperature systems, various approaches to defrosting, walk-ins, merchandisers, commercial ice machines, primary and secondary components in retail refrigeration applications, and common controls. They understand how to maintain and troubleshoot a reach-in freezer and cubed-ice machine. They can set up a defrost timer for a freezer; isolate a fault in refrigeration equipment or ice machine, and clean an ice machine.

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