NORTH CENTRAL TEXAS COLLEGE
COURSE SYLLABUS
Course Title: Commercial Refrigeration
|
Course Prefix & Number:
|
HART 2342
|
Section Number:
|
0180
|
Semester/Year:
|
S2/24
|
|
Semester Credit Hours:
|
3
|
Lecture Hours:
|
32
|
Lab Hours:
|
32
|
Semester start and end dates: March 18, 2024 – May 11, 2024
Course Type: Hybrid; Online, Gainesville Campus
Course Schedule: Online; LABS Thursday 6:00 PM – 10:PM
Location: 114 Campions Circle, suite 101
Course Description (NCTC Catalog):
Theory and practical application in the maintenance of commercial refrigeration; medium and low temperature applications and ice machines.
Course Prerequisite(s): Refrigeration Principles, Residential Air Conditioning
REQUIRED OR RECOMMENDED COURSE MATERIALS
Stanfield, C. & Skaves, D. (2013). Fundamentals of HVACR (4th ed.).
Boston: Pearson Education, Inc.
(ISBN: 9780136840787)
Instructor: Professor Peoples
Office Location: 114 Campions Circle, suite 101
Telephone Number: 940-453-0509 )
E-mail Address: DPeoples@NCTC.edu
OFFICE HOURS: T– TH 10:00am – 1:00 pm & Fri 10:00am-11:00am by appointment.
SYLLABUS CHANGE DISCLAIMER
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.
SUMMARY OF COURSE ASSIGNMENTS
List of graded assignments:
|
# of Graded Course Elements
|
Graded Course Elements
|
Points
|
| |
Getting Started Quiz,
Refrigeration Cycle Quiz
|
|
| |
Commercial Refrigeration Systems
Assignment, Quiz, Lab, Discussion
|
|
|
|
Special Refrigeration Components
Assignment, Quiz, Lab
|
|
| |
Supermarket Equipment
Assignment, Quiz, Lab
|
|
|
|
Refrigerants
Assignment, quizzes
|
|
| |
Ice Machines
Assignment, Quiz, Labs
|
|
| |
Troubleshooting Refrigeration Systems
Assignment, Quiz, Labs
|
|
| |
Final Exam and Knowledge Assessments
100 Questions randomly selected from all modules
|
|
|
|
Review Questions
Discussions
Total Points
|
|
GENERAL DESCRIPTION OF SUBJECT MATTER FOR EACH LECTURE/DISCUSSION
|
Topic
|
General Description of Subject Matter
|
|
The Refrigeration Cycle
|
Review of the fundamental principles of the mechanical compression refrigeration cycle
|
|
Commercial Refrigeration systems
|
High, medium and low temperature refrigeration systems Multiple compressor system operation,
Defrost system operation.
Sizing a walk in cooler or freezer.
|
|
Supermarket Equipment
|
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.
|
|
Ice Machines
|
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.
|
|
Troubleshooting Refrigeration Systems
|
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.
|
Final grade scale:
|
A
|
90 – 100%
|
|
B
|
80 – 89%
|
|
C
|
70 -79%
|
|
D
|
60 – 69%
|
|
F
|
below 60%
|
Late work policy:
- You are required to submit online assignments on time regardless of whether or not you attend class that day.
- Late assignments will not be accepted.
- Incomplete assignments will not be accepted.
SEE CANVAS FOR THE COMPLETE COURSE CALENDAR, OUTLINE, DETAILED DESCRIPTION OF GRADED WORK, AND OTHER RELATED MATERIAL.
COURSE POLICIES
Academic Integrity Policy: Scholastic dishonesty shall include, but is not limited to cheating, plagiarism, academic falsification, intellectual property dishonesty, academic dishonesty facilitation and collusion. Faculty members may document and bring charges against a student who is engaged in or is suspected to be engaged in academic dishonesty. See Student Handbook, “Student Rights & Responsibilities: Student Conduct ([FLB(LOCAL)]”.
Consequences for academic dishonesty may include:
- First offense – All participants involved will receive a grade of 0 on the assignment
- Second offense – The student(s) will be reported to the appropriate NCTC authorities who will then take action that may result in the student’s removal from the course and/or the college.
Attendance Policy: Regular and punctual attendance is expected of all students in all classes for which they have registered. All absences are considered to be unauthorized unless the student is absent due to illness or emergencies as determined by the instructor. It is the student’s responsibility to provide documentation as to the emergency for approval and judgement by the faculty member. Approved school sponsored activities are the only absences for which a student should not be held liable and only when provided by a school official ahead of the absence. Valid reasons for absence, however, do not relieve the student of the responsibility for making up required work. Students will not be allowed to make up an examination or lab assignment missed due to absence unless they have reasons acceptable to the instructor. A student who is compelled to be absent when a test or lab assignment is given should petition the instructor, in advance if possible, for permission to postpone the exam/assignment. Student will be dropped from a class by the Registrar upon recommendation of the instructor who feels the student has been justifiably absent or tardy a sufficient number of times to preclude meeting the course’s objectives. Persistent, unjustified absences from classes or laboratories will be considered sufficient cause for College officials to drop a student from the rolls of the College.
Lab Attire:
-
-
-
- Watches, rings, and other jewelry are prohibited in the lab
- Closed toe leather footwear is required
- Loose fitting clothing, accessories or any hairstyle that may, in the instructor’s opinion, present a safety hazard while using tools in the lab are prohibited
- Protective eyewear is required
Student and instructor safety are paramount. Faculty members will answer any questions regarding the standards and their decisions regarding suitability of any of the above listed items are final. Failure to follow any of the above lab policies may result in the student receiving a grade of "0" for any assignment under way at the time. Repeated offenses will result in the removal of the student from the class.
Withdrawal Policy
A student may withdraw from a course on or after the official date of record. It is the student’s responsibility to initiate and complete a Withdrawal Request Form.
Last day to withdraw from the course with a “W” is: April 21, 2022
|
Student Learning Outcomes:
|
|
Explain and apply medium and low temperature systems operation.
|
|
Explain and apply ice machine and packaged refrigeration system operation.
|
|
Explain application and conversion procedures of refrigerants related to specific systems.
|
|
Core Objectives: The Texas Higher Education Coordinating Board has identified six (6) Core Objectives for the Texas core curriculum. They are as follows:
- Critical Thinking Skills (CT) - creative thinking, innovation, inquiry, and analysis, evaluation and synthesis of information
- Communication Skills (COM) - effective development, interpretation and expression of ideas through written, oral and visual communication
- Empirical and Quantitative Skills (EQS) - manipulation and analysis of numerical data or observable facts resulting in informed conclusions
- Teamwork (TW) - ability to consider different points of view and to work effectively with others to support a shared purpose or goal
- Social Responsibility (SR) - intercultural competence, knowledge of civic responsibility, and the ability to engage effectively in regional, national, and global communities
- Personal Responsibility (PR) - ability to connect choices, actions, and consequences to ethical decision-making
COLLEGE POLICIES
STUDENT HANDBOOK
Students are expected to follow all rules and regulations found in the Student Handbook.
ADA STATEMENT
NCTC will adhere to all applicable federal, state and local laws, regulations and guidelines with respect to providing reasonable accommodations to afford equal educational opportunity. It is the student’s responsibility to contact the Office for Students with Disabilities to arrange appropriate accommodations. See the OSD Syllabus Addendum.
STUDENT SERVICES
NCTC provides a multitude of services and resources to support students. See the Student Services Syllabus Addendum for a listing of those departments and links to their sites.
DISABILITY SERVICES (Office for Students with Disabilities)
The Office for Students with Disabilities (OSD) provides support services for students with disabilities, students enrolled in technical areas of study, and students who are classified as special populations (i.e. single parents).
Support services for students with disabilities might include appropriate and reasonable accommodations, or they may be in the form of personal counseling, academic counseling, career counseling, etc. Furthermore, OSD Counselors work with students to encourage self-advocacy and promote empowerment. The Counselors also provides resource information, disability-related information, and adaptive technology for students who qualify.
If you feel you have needs for services that the institution provides, please reach out to either Wayne Smith (940) 498-6207 or Yvonne Sandman (940) 668-4321. Alternative students may stop by Room 170 in Corinth or Room 110 in Gainesville.
Important Program Note – All certificate and degree programs have a capstone exam and lab practical. This capstone process must be completed and passed before NCTC will award the certificate or associates. The exam has to be scheduled with the Division Chair and/or Faculty. If you are completing your final core program course, consider scheduling your capstone. If you have any questions, please contact your instructor for more information
If you have any questions, please contact your instructor for more information.
QUESTIONS, CONCERNS, or COMPLAINTS
|
Name of Chair/Coordinator:
|
Victor Drayton
|
|
Office Location:
|
Gainesville CTC 2110
|
|
Telephone Number:
|
940-668-7731
|
|
E-mail Address:
|
VDrayton@NCTC.edu
|
|
|
|
|
Name of Instructional Dean:
|
Darrell D Smith
|
|
Office Location:
|
Gainesville CTC 2110
|
|
Telephone Number:
|
940-668-7731 x4426
|
|
E-mail Address:
|
ddsmith@nctc.edu
|
|
E-mail Address:
|
Darrell D Smith
|
NCTC Student Services and Resources
![]()