Houston Community College CAREER AND TECHNICAL EDUCATION HEATING, AIR CONDITIONING AND REFRIGERATION COURSE SYLLABUS COURSE NUMBER: HART 1303 COURSE TITLE: CREDITS: A/C Control Principles 2 lectures, 3 labs PREREQUISITE/COREQUISITE: LEAD 1200 or 1370, TECM 1301, HART 1301 INSTRUCTOR: INSTRUCTIONAL METHOD: C. Pleasant (cheryl.pleasant@hccs.edu) Hybrid COURSE DESCRIPTION A basic study of HVAC and refrigeration controls; troubleshooting of control components; emphasis on use of wiring diagrams to analyze high and low voltage circuits; a review of Ohm's law as applied to air conditioning controls and circuits. END OF COURSE OUTCOMES 1. Demonstrate electrical safety. 2. Demonstrate knowledge of basic electricity. 3. Apply Ohm s Law to air conditioning controls and circuits. 4. Demonstrate knowledge of HVAC devices and circuits. 5. Troubleshoot HVAC related controls and motors. 6. Read, draw, and interpret high and low voltage control circuits. STUDENT LEARNING OUTCOMES 1. Identify different types of power supply and power distributions 2. List several types of electric motors 3. List and describe devices that protect motors from overloads and overheating 4. Categorize contactors and relays used in an A/C electrical circuits 5. Demonstrate service procedures required for several types of electric motor 6. Illustrate the use of electrical meters to check motor windings, shorts, and grounds COURSE POLICIES Attendance Students are expected to attend classes regularly, and to be on time for every class period. Students can be dropped from a class due to excessive absences. Excessive tardiness may be considered absences. Students are responsible for subjects, assignments, and projects covered during their
absences. Consult the Student Handbook for more details or visit http://www.hccs.edu/hccs/currentstudents. Academic Honesty Scholastic dishonesty is treated with the utmost seriousness by the instructor and the College. Academic dishonesty includes, but it is not limited to the willful attempt to misrepresent one s work, cheat, plagiarize, or impede other students scholastic progress. Consult the Student Handbook for more details. Students with Disabilities The Disability Support Services Office (DSSO) assists students with physical, learning, or emotional disabilities in developing independence and self-reliance. Students with Disabilities are urged to contact the DSSO at least 30 to 60 days prior to the first day of class. The goal is to ensure that students with disabilities get off to a good start and have the support necessary for them to succeed. The DSSO are committed to compliance with the Americans with Disabilities Act (ADA) and Rehabilitation Act of 1973 (section 504). Student can contact DSSO by phone at 713.718.6164 - TTY 713.718.6335. Fax 713.718.1468 Course Repeater Policy: Beginning in the fall 2006, students repeat a course for a third or more times will face significant tuition/fee increases at HCC and other Texas public colleges and universities. Please ask your instructor and/or counselor about opportunities for tutoring/other assistance prior to considering course withdrawal or if you are not receiving passing grades. Cell Phones All cell phones must be muted, set to vibrate, or turned off during class. Cell phone activity during class is deemed disruptive to the academic process and will not be tolerated. If you need to make or receive an Emergency Call, please leave the classroom. Calculators If the course allows the use of a calculator during class, lab projects, and exams, the student is responsible to bring his/her calculator. Cell phones are not calculators, and are not allowed to be used for that purpose during class, tests, or exams. Student ID Students are required to obtain a Student ID. For additional information, consult the Student Handbook. Parking Rules and Regulations Students are required to follow HCC s regulations regarding parking and permits. For additional information, visit http://www.hccs.edu/hccs/about-hcc/police/parking/parking-rules-and-regulations Books, Tools and Supplies Students are required to purchase and bring to class the required textbooks, tools, notebooks, supplies, and writing instruments as required by the instructor.
Electricity for Refrigeration, Heating, and Air Conditioning, 8th Edition Russell E. Smith Athens Technical College, Athens, Georgia ISBN-10: 1111038740 ISBN-13: 9781111038748 Tool list is available to student during the first week of class. Dress Code Dress code must be appropriate for the class. Students must dress in a way that clothing and accessories do not compromise their safety, and the safety of others. Proper foot wear is required in all laboratories. Absolutely no sandals or other footwear that exposes the feet will be allowed. Classroom and oratory Conduct Proper behavior is expected in all classes and laboratories. Foul language and horseplay are not allowed. Making or receiving cell phone calls during class are not allowed. Sleeping in class is not allowed. Course Withdrawal It is the responsibility of the student to officially withdraw from a course before the official withdrawal deadline. A student who does not withdraw from a course by the deadline will receive an F as the final grade. Also note that under Section 51.907 of the Texas Education Code, an institution of higher education may not allow a student to drop more than six courses. Student Evaluation Policies/Grading Scales Class Participation 200 20% (5 x 50) 250 25% (5 x 50) 250 25% Midterm Examination 150 15% Final Examination 150 15% Total Possible Points 1000 - Total Percentage - 100%
Grading Points The percentage of total points that students achieve is converted to a letter grade as follows: 90% - 100% 4.00 A 80% - 89% 3.00 B 75% - 80% 2.00 C 70% - 74% 1.00 D 69% - below 0.00 F EGLS3 -- Evaluation for Greater Learning Student Survey System At Houston Community College, professors believe that thoughtful student feedback is necessary to improve teaching and learning. During a designated time, you will be asked to answer a short online survey of research-based questions related to instruction. The anonymous results of the survey will be made available to your professors and division chairs for continual improvement of instruction. Look for the survey as part of the Houston Community College Student System online near the end of the term. COURSE OUTLINE, CONTENT GOALS AND ACTIVITIES Week 1 (Reading Assignment: HART 1303 Unit 12, Learning Web) Discuss syllabus, school policies, syllabus requirements and assignments Introduction to HVAC Week 2 (Reading Assignment: HART 1303 Chapter 7, Learning Web) Explain the basic difference between direct and alternating currents Explain how alternating current is produced Explain the difference between single-phase and three-phase power distribution systems Explain inductance, reactance, and impedance Explain a basic power distribution system Identify and explain the common voltage systems Week 3 (Reading Assignment: HART 1303 Chapter 9, Learning Web) Explain magnetism and the part it plays in the operation of electric motors Explain torque and the purpose of different types of single-phase motors Explain the operation of a basic electric motor Understand the operation, install, reverse the rotation, if possible, and diagnose problems in a shaded-pole motor Understand the purpose of capacitors in the operation of a single-phase motor and be able to explain the difference between a starting and running capacitor Correctly diagnose the condition of any capacitor and use capacitor rules and be able to substitute
a capacitor if a direct replacement is not available Explain the operation, install, troubleshoot, and repair, if possible, split-phase and capacitor-start motors Explain the operation, install, troubleshoot, and repair, if possible, permanent split-capacitor motors Explain the operation, install, troubleshoot, and repair, if possible, capacitor-start-capacitor-run motors Understand the operation, install, reverse, and troubleshoot three-phase motors Determine the common, start, and run terminals of a single-phase compressor motor Week 4 SIMUTECH Midterm Week 5 (Reading Assignment: HART 1303 Chapter 11, Learning Web) Explain the parts and the operation of contactors and relays Explain the application of contactors and relays in control systems Troubleshoot contactors and relays Correctly install a contactor or relay in a control system Draw a schematic wiring diagram using contactors and/or relays to control loads in a control system Understand the types and applications of overloads Identify the common types of overloads used to protect loads Explain the operation of the overloads Determine the best type of overload for a specific application Draw schematic wiring diagrams using the proper overload to protect loads Troubleshoot common types of overloads Explain the operation of a magnetic starter Size the overload devices to be used in a magnetic starter for motor protection Wire a magnetic starter using switches, thermostats or push-button stations Troubleshoot magnetic starter and push-button stations Week 6 (Reading Assignment: HART 1303 Chapter 12, Learning Web) Size a transformer for a control circuit Troubleshoot and replace a transformer in a residential air-conditioning control circuit Explain the basic function of a line and low-voltage thermostat in a control system Identify the common types of thermostats used in the industry Draw schematic diagrams using line and low voltage thermostats and operating and safety controls Install line and low-voltage thermostats on heating, cooling, and refrigeration equipment
Correctly set the heating anticipators and cooling anticipators, if adjustable, on a residential low voltage control system Explain the modes of operation and be able to correctly set or program a clock thermostat Explain the function and operation of pressure switches Install and correctly set the pressure switches in control systems used as operating and safety controls Troubleshoot pressure switches Understand, install, and troubleshoot common controls in control systems used in the industry Week 7 (Reading Assignment: HART 1303 Chapter 15, Learning Web) Troubleshoot electric motors Troubleshoot contactors and relays Troubleshoot overloads Troubleshoot thermostats Troubleshoot pressure switches Troubleshoot transformers Week 8 Final THE END