200

In this course, students begin with the fundamentals of commercial refrigeration. They explore both medium-temperature and low-temperature applications, identifying refrigeration flow problems and delving into the mechanical components of commercial refrigeration systems. Electrically, students study labeling, identifying, creating, and applying all electrical components found in walk-in coolers and freezers, including single and three-phase units and their components. The course equips students with the ability to read electrical schematics of commercial refrigeration systems. Regulatory knowledge is extended to include RCW 19.28, WAC 296-46A, WAC 296-401B, and articles from the NEC.

This comprehensive laboratory and shop course provides hands-on evaluation and repair opportunities with a diverse array of operational refrigeration equipment. Students gain practical experience in setting, adjusting, evaluating, programming, and wiring a wide variety of commercial refrigeration equipment under various operating conditions. Installation, setting, and proper wiring methods, as specified by NEC standards, are emphasized, ensuring that students are well-versed in safety measures in lab and shop areas.

Building upon the foundation laid in Commercial Refrigeration I, this course delves into advanced commercial refrigeration. Students explore medium temperature and low-temperature applications in greater depth, with a focus on identifying refrigeration flow problems and understanding standard operating procedures for walk-in coolers, freezers, and ice machines. Electrically, students expand their expertise in labeling, identifying, creating, and applying electrical components across a wide range of commercial refrigeration units, including single and three-phase systems. The course includes an introduction to supermarket rack systems with oil management, ensuring students are well-prepared for the complexities of modern commercial refrigeration. Regulatory knowledge is extended to encompass RCW 19.28, WAC 296-46A, WAC 296-401B, and articles from the NEC.

This hands-on laboratory and shop project course enables students to further develop by working with a diverse range of operational refrigeration equipment, including walk-in coolers, freezers, ice machines, reach-in units, undercounter units, and supermarket rack systems. Students gain knowledge in identifying oil management systems in supermarket refrigeration. The curriculum tests students' abilities in setting, adjusting, evaluating, programming, and wiring various commercial refrigeration equipment under a wide array of operating conditions. Installation, setting, and proper wiring methods, in accordance with NEC standards, are emphasized, ensuring that students are well-versed in safety measures in lab and shop environments.

In this advanced course, students are introduced to industrial heating and cooling systems and their various components, including variable air volume (VAV) systems, boilers, chillers, cooling towers, hot water systems, geothermal heat pumps, electrical theory, control circuits, wiring schematics, variable frequency drives (VFDs), pneumatics, and direct digital control (DDC) systems. Students will develop troubleshooting skills for industrial systems, an understanding of control systems, and the ability to interpret control circuits, wiring schematics, and piping diagrams. This course also delves into specific topics related to controlled atmosphere (CA) rooms, including nitrogen scrubbers, liquid nitrogen, nitrogen generators, and the processes involved in creating and exiting a controlled atmosphere. RCW 19.28, WAC 296-4018, and articles from the NEC are addressed for a final time.

This course allows students to receive hands-on experience operating, servicing, and repairing industrial heating and cooling systems. It allows students to apply the knowledge and skills they have learned in a practical setting to functioning labs and equipment. The related projects in the course will cover DDC equipment, chillers, brazing, MIG welding, pipe threading, compressor tear-down, VFDs, boilers, hot water systems, campus building maintenance, and off-site service work.

Students can accept a position as a HVAC/R technician and work in industry under a training externship agreement with Perry Technical Institute, the employer, and the student. Completion of the externship packet is required as well as some assigned course activities. To be eligible for an externship the student must work under a licensed 06A journeyman with an appropriate electrical license or waive the credited 2000 electrical hours. Students not on an externship will focus on the completion of a required capstone project along with reviewing program curriculum while working on shop and lab projects.