NORTH CENTRAL TEXAS COLLEGE COURSE SYLLABUS
Course Title: Refrigeration Principles
Course Prefix & Number: HART1307
Section Number: 0100
Term Code: F1 24
Semester Credit Hours: 3
Lecture Hours: 32
Lab Hours: 32
Semester start and end dates: 26 August 2024 – 19 October 2024
Modality (Face to face)
Class meeting location, days, and times: Gainesville campus Bldg. 2100 room 2120
Lab meeting location, days, and times: Tuesday and Thursday evenings 6pm – 10pm
Course Description (NCTC Catalog): An introduction to the refrigeration cycle, heat transfer theory, temperature/pressure relationship, refrigerant handling, refrigeration components, and safety.
Course Prerequisite(s): N/A
Course Type:
o - Academic General Education Course (from Academic Course Guide Manual but not in NCTC Core)
o- Academic NCTC Core Curriculum Course
x- WECM Course
Name of Instructor: Victor Drayton
Campus/Office Location: CTC Gainesville Bldg 2100 2114/2116/2120
Telephone Number: 972-899-9701 ext. 4101
E-mail Address: vdrayton@nctc.edu
OFFICE HOURS:
Your Instructor is available for consultation by appointment. Phone calls and emails received Monday through Thursday will be returned within 24 hours. Phone calls and emails received Friday, Saturday or Sunday will be returned the following Monday. The instructor will not reply to text messages.
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.
REQUIRED OR RECOMMENDED COURSE MATERIALS
Fundamentals of HVACR 4th edition Carter Stanfield and David Skaves
ISBN 13:978-0-13-401616-0
Fundamentals of HVACR 4th edition
Powerpoint Slides provided
GRADING CRITERIA
Letter grades for this course will be assigned in accordance with NCTC standard grading policy:
A 90% - 100% D 60% - 69%
B 80% - 89% F 0 – 59%
C 70% - 79%
GRADING CRITERIA
Element
Graded Course Elements
Percentage or Points Values
Unit 1
Introduction to HVACR,
Complete academic assignments, Lab assignments & Exam
Most assignments and Exams
will be graded 0 -100 point
Review questions 0-10 points
Unit 3
Safety,
Complete academic assignments, Lab assignments & Exam
Most assignments and Exams
will be graded 0 -100 points
Review questions 0-10 points
Unit 6
Measurements,
Complete academic assignments, Lab assignments & Exam
Most assignments and Exams
will be graded 0 -100 points
Review questions 0-10 points
Unit 7
Properties of Matter,
Complete academic assignments, Lab assignments & Exam
Most assignments and Exams
will be graded 0 -100 points
Review questions 0-10 points
Unit 8
Types of Energy and Their Properties,
Complete academic assignments, Lab assignments & Exam
Most assignments and Exams
will be graded 0 -100 points
Review questions 0-10 points
Unit 9
Temperature and Thermodynamics,
Complete academic assignments, Lab assignments & Exam
Most assignments and Exams
will be graded 0 -100 points
Review questions 0-10 points
Unit 10
Pressure and Vacuum,
Complete academic assignments, Lab assignments & Exam
Most assignments and Exams will be graded 0 -100 points
Review questions 0-10 points
Unit 11
Types of Refrigeration Systems,
Complete academic assignments, Lab assignments & Exam
Most assignments and Exams
will be graded 0 -100 points
Review questions 0-10 points
Unit 12
The Refrigeration Cycle,
Complete academic assignments, Lab assignments & Exam
Most assignments and Exams
will be graded 0 -100 points
Review questions 0-10 points
Unit 13
Compressors,
Complete academic assignments, Lab assignments & Exam
All assignments and Exams
will be graded 0 -100 points.
Unit 14
Condensers, Complete academic assignments, Lab assignments & Exam
Most assignments and Exams
will be graded 0 -100 points.
Review questions 0-10 points
Unit 15
Metering Devices, Complete academic assignments, Lab assignments & Exam
Most assignments and Exams
will be graded 0 -100 points.
Review questions 0-10 points
Unit 16
Evaporators , Complete academic assignments, Lab assignments & Exam
Most assignments and Exams
will be graded 0 -100 points.
Review questions 0-10 points
Unit 17 Refrigerants and Their Properties, Complete academic assignments, Lab assignments & Exam
Most assignments and Exams
will be graded 0 -100 points.
Review questions 0-10 points
Unit 22
Piping and Tubing; Complete academic assignments, Lab assignments & Exam
Most assignments and Exams
will be graded 0 -100 points.
Review questions 0-10 points
Unit 23
Soldering and Brazing, Complete academic assignments, Lab assignments & Exam
Most assignments and Exams
will be graded 0 -100 points.
Review questions 0-10 points
Unit 24
Refrigerant System Piping, Complete academic assignments, Lab assignments & Exam
Most assignments and Exams
will be graded 0 -100 points.
Review questions 0-10 points
Exams
Section Exams – Test over all units in a section
and Final Exam - Test over all sections in course
All element grades will be averaged together for a final grade for the course.
Course Policy
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 missed due to absence unless they have reasons acceptable to the instructor. A student who is compelled to be absent when a test is given should petition the instructor, in advance if possible, for permission to postpone the exam. 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. From Board Policy FC (LOCAL) Students may be allowed to drop one exam grade from the required exams given during the course. Required work not completed by due dates will not be accepted without instructor approval.
Course Attendance & Participation are just as important in class as on the job. Any student who is not present will receive a "0" for any graded assignments missed. You may be allowed to make up work, at the instructor’s discretion. If you must be late or absent for any reason you are required to contact the instructor by phone, text or email prior to the absence or tardiness.
You are required to submit online assignments on time regardless of whether or not you are in class that day.
Late assignments will up to 7 calendar days past due with a 5% deduction.
Incomplete assignments will not be accepted.
Cell phone use is prohibited in the classroom and lab unless specifically authorized by the instructor. Earbuds may only be used with specific approval from the instructor.
Class disruptions will not be tolerated.
If you need to leave the classroom or lab for any reason during class hours, inform the instructor of your destination and expected return time. Check back in with the instructor upon your return.
All assignments must be completed by each student individually. There is to be no collaboration unless specified by the instructor.
Dishonesty will not be tolerated. A minor offense will result in a grade of "0" for any assignment affected by dishonest or prohibited behavior. Deliberate, intentional and/or repeated instances of dishonesty such as plagiarism and/or collusion on assignments may result in an “F” for the final course grade or dismissal from the course, and possibly the college at the discretion of the instructor and/or college authorities.
Watches, rings and other jewelry are prohibited in the lab.
Closed toe shoes are required in the lab.
Loose fitting clothing, accessories or any hairstyle that may present a safety issue while using tools are prohibited in the lab.
Outer clothing made from 100% cotton or specific fire resistant material is required to be worn whenever torches are in use in the lab.
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.
Important Program Notes:
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 is often included in the curriculum of the final course each semester but may have to be scheduled with the Division Chair and/or Faculty. If you are completing your final core program course, consider scheduling your capstone.
The instructor may add, remove, or change any graded elements of this course at the instructor's sole discretion.
If you have any questions, please contact your instructor for more information.
LAST DAY TO WITHDRAW
For the fall 2024 semester the last day to withdraw from a course with a “W” is September 14, 2024
STUDENT HANDBOOK
Students are expected to follow all rules and regulations found in the student handbook and published
online.
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.
AI Statement for Instruction
Absent a clear statement from a course instructor, use of or consultation with generative Artificial
Intelligence (AI) or other similar technologies shall be treated analogously to assistance from another
person, agency, or entity. In particular, using generative AI tools to substantially complete an
assignment or exam is not permitted. Students should acknowledge the use of generative AI (other than
incidental use) and default to disclosing such assistance when in doubt.
When students use generative AI to replace the rigorous demands of and personal engagement with
their coursework, it runs counter to the educational mission of the college and undermines the heart of
education itself. Artificial Intelligence, large language models, and technologies hold promise for
deploying knowledge in service to others and accelerating the discovery of new knowledge. However,
such technology poses new challenges to pedagogy and to integrity. Within the context of the teaching
mission of the college, and consistent with the Student Code of Conduct, the authority to define the
appropriate use, study, and deployment of these technologies rests with the faculty.
Individual course instructors, in coordination with their divisions, set policies regulating the use of
generative AI tools in their courses, including allowing or disallowing some or all uses of such tools.
Course instructors will set such policies in their course syllabi and clearly communicate such policies to
students. Students who are unsure of policies regarding generative AI tools are encouraged to ask their
ACADEMIC DISHONESTY
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:
A grade of zero on any assignment that the instructor believes was completed dishonestly.
A report of the academic dishonesty to the appropriate authorities at NCTC which may result in removal from the course and/or removal form the college.
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.
Conversion of Onsite Classes to Online/Remote Format: North Central Texas College students should be aware that in the event of a college closure due to COVID-19, onsite classes will be converted to an online/remote format. Students should plan ahead to ensure they have access to the computer equipment (either PC, MAC, or tablet), webcam, and internet connectivity to continue their classes in an online/remote format. Please read all your official North Central Texas College student emails as the transition from onsite to online/remote might require a reorganization in your personal situation. Students will be granted a 72-hour transition and grace period. Online classes will continue as scheduled without disruption. Wear a mask, stay safe, and contact your Instructor as the situation arises. These policies and procedures were updated on July 30, 2020 and are subject to change as conditions change.
Students should:
Provide notification to campus officials (via NCTC Daily Health Check protocol through Canvas) if they have tested positive for COVID-19 or have to quarantine so we can confirm reported absence with instructors, monitor, and assist the campus community.
Notify instructors in advance of the absence.
Connect with that class through Webex if the class session is being transmitted in a hybrid fashion.
Keep up with and/or make up missed classwork or assignments.
Submit assignments digitally through Canvas or other means as announced by your instructor.
Work with their instructors to reschedule exams, labs, and other critical academic activities described in the course syllabus.
Check Canvas and campus email daily to receive important announcements pertaining to the course.
END OF COURSE OUTCOMES (WECM)
Student Learning Outcomes:
1. Identify refrigeration components
2. Explain operation of the basic refrigeration cycle and heat transfer
3. Demonstrate proper application and/or use of tools, test equipment and safety procedures
Program Outcomes:
Skill development in each of the following areas:
1. Communication
2. Teamwork
3. Problem Solving
4. Ethics
GENERAL DESCRIPTION OF SUBJECT MATTER FOR EACH LECTURE/DISCUSSION
Topic
General Description of Subject Matter
Introduction to Heating, Ventilation, Air Conditioning and Refrigeration
History Of HVACR, define environmental heating and air conditioning, the importance of a clean background. The types of various jobs in the HVACR industry.
Safety
Discuss safety in the HVACR industry; name the major hazards of pressure vessels, steps to take in case of an accident.
Measurements
Four physical properties that are commonly measured the basic concept of the SI system. Estimate length and area based on standard building material dimensions.
Piping and Tubing
Pipe materials used in HVACR, methods of joining copper tubing. Characteristics of ACR tubing.
Soldering and Brazing
Proper clothing and PPE that must be worn during soldering and brazing. Correct procedure for soldering and brazing.
Refrigerant System Piping
Installation of refrigerant piping and the modifications required for long line, vertical lift and velocities in lines.
Properties and Matter
Characteristics if the three states of matter, why properties of matter are important.
Types of Energy and their properties
Difference between potential and kinetic energy, common forms of energy, structure of molecules and atoms.
Temperature and Measurement and conversion
The effect that temperature has on a substance, the four types of temperature scales, Fahrenheit, Celsius, Rankin and Kelvin.
Thermodynamics- the study of Heat
The first and second laws of thermodynamics, the rate that heat transfers through various materials. Heat energy and temperature, sensible heat and latent heat.
Pressure and Vacuum
Relationships between atmospheric pressure, gauge pressure and absolute pressure. How gas responds to changes in temperature, volume and pressure
Types of Refrigeration Systems
Different types of cooling systems, fundamental principles behind the compression refrigeration cycle.
The Refrigeration Cycle
Fundamental principles behind the refrigeration cycle, the four major components of the compression cycle.
Compressors
Identify the major types of compressors, how each type of compressor works. Explain horsepower and compressor capacity.
Condensers
How air cooled and water cooled condensers work, types of air cooled and water cooled condensers and their operation
Metering Devices
Types of metering devices, operation between fixed and modulating metering devices. Describe how to measure superheat. Operation of balanced port expansion valves.
Evaporators
Identify the four broad categories if evaporators and their application. Concepts of sensible and latent cooling as they relate to evaporators. Flooded and direct expansion evaporators.
Refrigerants and their Properties
Define refrigerant, type of refrigerant by number designation. Pressure- temperature relationship or saturated refrigerant.
QUESTIONS, CONCERNS, or COMPLAINTS
Name of Chair/Coordinator: Victor Drayton
Office Location: Gainesville Bldg. 2100
Telephone Number: 972-899-9701 ext. 4401
E-mail Address: vdrayton@nctc.edu
Name of Instructional Dean: Darrell Smith
Office Location: Champion Circle Ft. Worth
Phone: 817-464-1001
E-mail Address: ddsmith@nctc.edu
NCTC Student Services and Resources
Frequently Asked Questions-all you need to know as a new or continuing student
Student Services page-all the offices and contact information you need!
Advising FAQ's-all majors and programs!
Meet Your Advisor/Coach
Degree Plans and Online Registration
Career Services and Completion Center
Course Combination/Credit Hour Maximization Matrix
Lion365 Year-Round Registration!
Post-Registration Checklist
Navigating Your First Year at NCTC
Affinity Groupsand Student Life & Organizations
Awareness, Community Resources, andWellness
CARES Team and Counseling Services
Financial Aid and Scholarships
Equity, Diversity, and Inclusion
Student Success/Tutoring, TRIO, and OSD (Disability Services)
Testing Services
QLess and Signing into Virtual Lines
Keep track of NCTC campus and COVID-related updates
Affinity Groups
Staff and faculty representing the Employee Resource Groups (ERG’s), along with academic advisors, counselors and success coaches, serve as mentors for NCTC’s student-centered Affinity Groups.
An Affinity Group is a population of students who have specific needs, barriers or systems they are needing to navigate not only within college, but within life. Providing mentorship, support and resources for identified Affinity Groups such as Black/African American students, veterans and active military, single parents, students with disabilities, adult learners, Latinx, LGBTQ+ and students who have experienced foster care and/or homelessness, enables us to make more impactful, meaningful connections with students who are in dire need of equity and understanding.
Career Services Center
In need of employment? NCTC Career Coaches meet one-on-one to provide training in writing resumes, job searches, interviewing, and more. The Skills to Succeed Academy is also a free interactive, online employability training program focused on building the skills and confidence you need to find the best career.
Completion Center
The Completion Center provides a variety of services for first-time in college students. These include academic success coaching, goal setting, course planning, student resources, career development, and job placement services for all new college students. Free online Success Seminars are also available through Student Lingo and new students will also enroll in a First Year Experience (NCTC 1001) course to get started on the right track!
Counseling and Advising
Academic Advisors and Counselors help students explore majors and programs offered, how to take the best combination of classes to meet your goals, assist with questions related to university transfer, and guide students towards academic and personal success, and more. At NCTC, you are assigned to a specific advisor or success coach based on your major or career interests. You can locate our advisors and their majors, along with contact information on the Meet Your Advisor page-and even schedule an appointment with them through their online calendar!
Early Alert and CARES
The NCTC Early Alert program assists students who are at risk of failing or withdrawing from a course. Faculty and staff may refer students through the Early Alert process at any point in the semester in an effort to provide appropriate intervention and access to support services. Examples of behaviors that could prompt an Early Alert referral could be missing assignments, failing tests, excessive absences, or personal circumstances impacting academic performance. A student submitted as an Early Alert will be contacted by an academic advisor or success coach through text, phone, and/or via their NCTC e-mail address to discuss any current challenges as well as helpful resources and success strategies-we want our students to finish strong and know that education is a partnership!
The NCTC CARES Team is concerned not only about our students' academic success, but also their emotional and physical well-being. As a student, you have the ability to report concerning behavior which could impact your own safety or the safety of another NCTC student, such as stalking, harassment, physical or emotional abuse, violent or threatening behavior, or self-harm. Visit the NCTC CARES site to also locate campus and community resources, or email counseling@nctc.edu. As always, if you feel there is an immediate threat to your own safety or welfare (or to another student), please call 911 immediately.
Equity, Diversity and Inclusion (EDI)
EDI partners with the entire campus community to create, maintain and demonstrate NCTC’s commitment to an equitable, diverse and inclusive learning environment where NCTC students succeed. NCTC defines equity as encompassing the practice of acknowledging individual differences and systemic disparities when developing new programs and resources for our campus community, which may sometimes challenge our own beliefs and assumptions, in order to ensure balanced educational opportunities toward completion. Everyone Included. Everyone Belongs. Everyone Valued. Everyone Inspired.
Financial Aid
The Office of Financial Aid provides students with information and guidance with applying for eligible types of financial assistance, such as the FAFSA (Free Application for Federal Student Aid). Students who have any types of exemptions or tuition waivers will also work with the Financial Aid Office to have these funds applied to their accounts. Additionally, the Scholarship Office provides local scholarship opportunities through an online application process, and tips on how to secure other types of scholarship awards which can help finance educational goals.
Student Success Center
The Student Success Center is designed to help all students at NCTC develop tools to achieve their academic goals. The center links students to FREE tutoring, including a Writing Center, a Math Lab, and free online tutoring. Student Success offers academic coaching, tutoring, including a Writing Center, and a Math Lab to assist new students acclimate to college by providing computer lab services for prospective students. First generation students can also participate in TRIO which offers specialized services.
Testing Services
The mission of NCTC Testing Services is to provide high-quality testing services that adhere to the professional standards and guidelines to meet the needs of students, faculty, and community members.