Course Syllabus Residential Air Conditioning HART 1341 Instructor contact information (phone number and email address) Raul Lopez raul.lopez2@hccs.edu Office Location and Hours JBW Room #115A Course Location/Times JBW Room #104 Course Semester Credit Hours (SCH) (lecture, lab) If applicable Credit Hours: 3 Lecture Hours: 2 Laboratory Hours: 3 External Hours: 2 Total Course Contact Hours 80.00 Course Length (number of weeks) Type of Instruction Course Description: 8 Weeks Lecture/Lab A study of components, applications, and installation of mechanical air conditioning systems including operating conditions, troubleshooting, repair, and charging of air conditioning systems. Course Prerequisite(s) PREREQUISITE(S): HART 1301, HART 1307 Academic Discipline/CTE Program Learning Outcomes 1. Demonstrate knowledge of safety rules and regulations. 2. Demonstrate the proper selection, use, and maintenance of hand and power tools and measuring instruments used in A/C and Refrigeration. 3. Maintain A/C and Refrigeration equipment. 4. Service/repair A/C and Refrigeration equipment. 5. Troubleshoot A/C and Refrigeration equipment. Raul Lopez Page 1
Course Student Learning Outcomes (SLO): 4 to 7 1. Identify various types of system applications 2. Identify A/C system components 3. Perform charging, recovery and evacuation procedures of an installed system 4. Perform component and parts diagnostics 5. Perform system maintenance Learning Objectives (Numbering system should be linked to SLO - e.g., 1.1, 1.2, 1.3, etc.) 1. Identify various types of system applications 1.1 Dry bulb and wet bulb temperatures 1.2 Evaporative cooling 1.3 Refrigerated cooling 1.4 Split air conditioning systems 1.5 Self-contained systems 1.6 Design conditions 2. Identify A/C system components 2.1 Air side components 2.2 The evaporator 2.3 The condenser 2.4 The compressor and metering devices 2.5 The suction line and the liquid line 3. Perform charging, recovery and evacuation procedures 3.1 The function of the evaporator 3.2 Condenser design 3.3 Operating conditions 3.4 Compressor running amperage 3.5 Recovery and evacuation procedures 3.6 Charging procedures in the field 4. Perform component and parts diagnostics 4.1 The 24 volt controls 4.2 The power supply to the equipment 4.3 The blower fan motor 4.4 The compressor and condenser motor 5. Perform system maintenance 5.1 Evaluate the evaporator 5.2 Evaluate the condenser 5.3 Temperature readings 5.4 Equipment efficiency readings Raul Lopez Page 2
Instructional Methods Hybrid Class 50% Face to Face (classroom) 50% Online (Eagle Online) Instructor's Requirements Program/Discipline Requirements: If applicable HCC Grading Scale: Student attendance and participation is required to receive a passing grade. Students must maintain course portfolio. Excessive absences, lack of participation can affect final grade by 10%. Student is required to bring to class all necessary tools, and dress according to lab safety requirements. Student must bring textbooks, notebooks, and other required supplies. A = 100-90 B = 89-80: C = 79-70: D = 69-60: 4 points/semester hour 3 points/semester hour 2 points/semester hour 1 point/semester hour 59 and below = F FX (Failure due to nonattendance) IP (In Progress) W (Withdrawn) I (Incomplete) IP (In Progress) is given only in certain developmental courses. The student must re-enroll to receive credit. Instructor Grading Criteria Assignments 20 % Quizzes, 20 % Labs 30 % Final Exam 30 % Instructional Materials Publisher: Delmar Cengage Learning, Refrigeration & Air Conditioning Technology, 7 th. Edition. Author: Whitman, ISBN-13:978-1-4283-1936-3 Course Policies Attendance Students are expected to attend classes, and to be on time for every class period. Excessive absences will affect 10% student s grades. Excessive tardiness or leaving early 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/current-students/studenthandbook 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. Raul Lopez Page 3
Students with Disabilities Any student with a documented disability (e.g. physical, learning, psychiatric, vision, hearing, etc.) who needs to arrange reasonable accommodations must contact the Disability Support Services Office at his / her respective college at the beginning of each semester. Faculty are authorized to provide only the accommodations requested by the Disability Support Services Office. For Central College, call 713 718 6164. 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 The course requires 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. 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 & Laboratory 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 Access Student Services Policies on their Web site: http://hccs.edu/student-rights 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 near the end of the term, 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 department chairs for continual improvement of instruction. Look for the survey as part of the HCC Student System online near the end of the term. Raul Lopez Page 4
HART 1341 - Course Outline, Content Goals & Activities Orientation / General Safety Syllabus Course Description and Outcomes Class Attendance, Academic Calendar, and Grading Scales Required Textbooks and Tools Required Assignments and Labs Required Notebook Quiz 1 Lab 1 Week 1 Unit 35 Comfort and Psychrometrics 35.1 Comfort 35.3 Heat Transfer 35.4 Comfort Chart 35.5 Psychrometrics 35.6 Moisture 35.7 Absolute Humidity & Relative Humidity 35.9 Dry Bulb & Wet Bulb Temp 35.13 Plotting the Chart Quiz 2 Lab 2 Week 2 - Unit 36 Refrigeration Applied to Air Conditioning 36.1 Refrigeration 36.2 Heat Gain 36.3 Evaporative Cooling 36.4 Refrigerated Cooling 36.5 The Evaporator 36.6 The Function of the Evaporator 36.7 Design Conditions 36.9 The Compressor 36.17 The Condenser 36.20 Condenser Design 36.23 Expansion Devices 36.24 Air-Side Components Quiz 3 lab 3 Week 3, 4 Unit 37 Air Distribution and Balance 37.2 Correct Air Quantity 37.3 The Forced Air System 37.4 The Blower 37.5 System Pressures 37.7 Types of Fans 37.9 The Supply Duct System 37.10 The Plenum System 37.29 The Return Air Duct System 37.30 Sizing Duct 37.32 The Air Friction Chart Quiz 4 Lab 4 Raul Lopez Page 5
Week 5 Unit 19 Motor Controls Describe difference between a relay, a contactor and a starter List basic components of a contactor and starter Compare two types of external motor overload protection Week 6 - Unit 40 Typical Operating Conditions 40.1 Mechanical Operating Conditions 40.2 Relative Humidity 40.3 System Components 40.4 Evaporator 40.5 High Evaporator Loads 40.6 Grades of Equipment 40.7 Documentation with the Unit 40.10 Equipment Efficiency Rating 40.15 Compressor Running Amperage Quiz 5 Lab 5 Week 7 - Unit 41 41.2 Mechanical Troubleshooting 41.3 Gage Manifold Usage 41.4 When to Connect the Gages 41.7 Temperature Readings 41.8 Charging Procedures in the Field Quiz 6 Lab 6 Week 8 Final Exams Raul Lopez Page 6