NORTH CENTRAL TEXAS COLLEGE
                                                                 COURSE SYLLABUS
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Course Title:Â Â Â Â Â Â Commercial Refrigeration
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Course Prefix & Number:
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HART 2342
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Section Number:Â
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0180
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Semester/Year:
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S2/22
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Semester Credit Hours:
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3
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Lecture Hours:
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32
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Lab Hours:
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32
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Semester start and end dates:  March 21, 2022 – May 14, 2022
Course Type:Â Hybrid; Online, Gainesville Campus
Course Schedule:  Online; LABS Thursday 6:00 PM – 10:PM
Location:Â Â Online/BLDG 2100, Room 2114
Course Description (NCTC Catalog):
Theory and practical application in the maintenance of commercial refrigeration;Â medium and low temperature applications and ice machines.Â
Course Prerequisite(s):Â Refrigeration Principles, Residential Air Conditioning
REQUIRED OR RECOMMENDED COURSE MATERIALS
Stanfield, C. & Skaves, D. (2013). Fundamentals of HVACR (3rd  ed.).
Boston: Pearson Education, Inc.
 (ISBN 13: 978-0-13-401616-0)
 Instructor: Mike Brucia
Office Location:Â CTC 2109/DHS 342
Telephone Number:Â 214-394-9364 (cell)
E-mail Address: mbrucia@nctc.edu          Â
OFFICE HOURS
One hour before class on Lab days, and by appointment
SYLLABUS CHANGE DISCLAIMER
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The faculty member reserves the right to make changes to this published syllabus if it is in the best interest of the educational development of this class. Any such changes will be announced as soon as possible in person and/or writing.
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 SUMMARY OF COURSE ASSIGNMENTS
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List of graded assignments:
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# of Graded Course Elements
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Graded Course Elements
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Points
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2
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Getting Started Quiz,
Refrigeration Cycle Quiz
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25
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4
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Commercial Refrigeration Systems
Assignment, Quiz, Lab, Discussion
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118
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3
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Special Refrigeration Components
Assignment, Quiz, Lab
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74
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3
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Supermarket Equipment
Assignment, Quiz, Lab
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100
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3
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Refrigerants
Assignment, quizzes
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130
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4
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Ice Machines
Assignment, Quiz, Labs
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104
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3
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Troubleshooting Refrigeration Systems
Assignment, Quiz, Labs
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95
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1
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Final Exam and Knowledge Assessments
100 Questions randomly selected from all modules
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130
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Total Points
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776
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 GENERAL DESCRIPTION OF SUBJECT MATTER FOR EACH LECTURE/DISCUSSION
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Topic
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General Description of Subject Matter
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The Refrigeration Cycle
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Review of the fundamental principles of the mechanical compression refrigeration cycle
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Commercial Refrigeration systems
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High, medium and low temperature refrigeration systems  Multiple compressor system operation,
Defrost system operation.
Sizing a walk in cooler or freezer.
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Supermarket Equipment
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Multiplex, distributed, and secondary loop systems. Compressor racks.
Simple hot gas defrost system layout.
Open refrigerated display cases.
Series, parallel, and hydronic heat reclaim systems.
Basic CO2 cascade refrigeration systems operate.
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Ice Machines
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Sizing of the ice machine required for a particular application.
Types of ice; cubes, crushed ice, flake ice, and block ice and what applications are best suited for these ice types.
Ice machine cleaning.
Sequence of operations of a flake ice machine, cube and crushed ice machines.
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Troubleshooting Refrigeration Systems
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Electrical troubleshooting a refrigeration system.
Troubleshoot a defective compressor, troubleshoot a defective start relay, troubleshoot a defective capacitor. Trouble shoot metering devices, common evaporator problems, common condenser problems.
Search for leaks in a refrigeration system.
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