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ARCHITECTURE, CONSTRUCTION & MANUFACTURING
TECHNOLOGIES DIVISION
HEATING, AIR CONDITIONING & REFRIGERATION TECHNOLOGY DEPARTMENT
COURSE SYLLABUS
COURSE NUMBER: Hart 1303
COURSE TITLE: A/C CONTROLS PRINCIPLES
CREDITS: # (2 lectures, 3 labs)
PREREQUISITE / COREQUISITE: Hart - 1301
COURSE DESCRIPTION
A basic study of electrical motors used in air conditioning and refrigeration including motor winding
configuration, type of single phase motor & three phase motor, motor starting devices, operating
relays/contactors, safety controls and devices, wiring diagrams, study of different Power supply and distribution,
application of Ohm' s law and Watts' law, testing air conditioning electrical components.
END-OF-COURSE-OUTCOMES
By studying this course, students will be able to:
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Illustrate the calibration of an ohmmeter, an ammeter, and a voltmeter with accuracy
Interpret current, voltage, and resistance reading of a circuit by using Ohm's law
Identify different types of Power supply and power distributions
Describe the operation of electromagnets
List several types of electric motors
List and describe devices that protect motors from overloads and overheating
Identify safety devices, contactors, relays used in an electrical circuit
Demonstrate service procedures required for several types of motor
Use various electrical testing instruments to check motor windings, shorts, and grounds
Identify the common types of electrical circuit controls used in HVAC field
Differentiate between standard electrical circuit diagrams and ladder diagrams
Read and understand electrical circuitry
Interpret different types of wiring diagrams and electrical symbols
STUDENT LEARNING OUTCOMES
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STUDENT LEARNING OUTCOMES
SLO # 1
SLO # 2
SLO # 3
SLO # 4
SLO # 5
Given a reading assignment along with lectures, the student will discuss knowledge of basic
principles of electricity. Performance will be satisfactory if the student can identify different
types of electrical circuit and general safety rules related to an energized circuit by passing 80
% on the quiz assignments.
Given a lab assignment, the student will discuss the basic theory of electric motors.
Performance will be satisfactory When the student can demonstrate the operation of electric
motors and related control devices by passing 90 % of accuracy on the practice
Given a reading and lab assignments along with lectures, the student will Identify different
types of Power supply and power distributions. Performance will be satisfactory When the
student can list different types of power supply by passing 80 % on the quiz assignments
Given different types of AC motor, the student will use various electrical testing instruments to
check motor windings, shorts, and grounds Performance will be satisfactory When the student
can accurately sketch and identify the motor windings by passing 90 % of accuracy on the
practice.
Given the complex electrical diagram, the student will identify the common types of electrical
circuit controls used in HVAC field. Performance will be satisfactory When the student can
compare various types of electrical control in air conditioning system by passing 90 % of
accuracy on the practice
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/current-students.
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 by phone at 713.718.6164 - TTY 713.718.6335. Fax 713.718.1468
Course Repeater Policy:
Beginning in the Fall 2006, students who 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
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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.
By Bill Whitman; Bill Johnson; John Tomczyck; Eugene Silberstein
Publisher: Delmar
Edition: 6th Edition
Publication Date: 2009
ISBN: 13- 9781428319363
By Stephen Herman
Publisher: Delmar
Edition: 004
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Publication Date: 2009
ISBN: 13: 9781418065805
Tool list is available to student during the first day of class meeting or find it at HCC Learning Web - Central
Campus listed by instructor name: Hoang N Do
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.
Student Evaluation Policies/Grading Scales:
Class participation
Quiz ( 12 x 30)
Lab ( 6 x 40)
Midterm Examination
Final Examination
Total possible points =
Total Percentage =
100
360
240
150
150
1000 pts
10%
36%
24%
15%
15%
100%
Grading Points
The percentage of total points that students achieve is converted to a letter grade as follow:
94% to 100%
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= 4.00
A
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87% to 93%
80% to 86%
73% to 79%
72% to below
=
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3.00
2.00
1.00
0.0
B
C
D
F
COURSE OBJECTIVES / GOALS
Upon completion of this course, the student will:
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Illustrate the calibration of an ohmmeter, an ammeter, and a voltmeter with accuracy
Interpret current, voltage, and resistance reading of a circuit by using Ohm's law
Identify different types of Power supply and power distributions
Describe the operation of electromagnets
Discuss the basic theory of electric motors and related devices
List several types of electric motors
Explain the operating principles of various types of electric motors
List and describe devices that protect motors from overloads and overheating
Identify safety devices used in an electrical circuit
Demonstrate service procedures required for several types of motor
List safety procedures for servicing electric motors
Use various electrical testing instruments to check motor windings, shorts, and grounds
Identify the common types of electrical circuit controls used in HVAC field
Differentiate between standard electrical circuit diagrams and ladder diagrams
Read and understand electrical circuitry
Interpret different types of wiring diagrams and electrical symbols
COURSE OUTLINE, CONTENT GOALS & ACTIVITIES
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COURSE OUTLINE, GOALS / ACTIVITIES
Week 1 Identify safety rules, syllabi procedure s, and discuss the use of Internet resources
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Syllabus requirements and Assignments
Course description and Learning Outcomes
Required Textbooks and Tools
Class attendance and grading scales
Discuss safety rules related to OSHA regulations
Demonstrate the ability to collect technical data from manuals and equipment by using Internet
resources
Demonstrate adaptability by collaborating and planning a project with others
Week 2 Demonstrate knowledge of basic principles of electricity
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Define an electric circuit: Controller, Path, Load, and Power Supply
Compute different electrical values using Ohm's law
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Calculate total voltage, total resistance, and total amperage
Calculate total wattage and wattage for individual load
Quiz 01
Lab - 01
Week 3
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Demonstrate the ability to use electrical instruments
Discuss the operation of an voltmeter, an ohmmeter , and an ammeter
Calibrate instruments
Connect a Voltmeter to an energized circuit to measure voltage
Connect an Ohmmeter to a de-energized circuit to measure resistance
Connect an Ammeter to an energized load to measure current
Quiz 02
Week 4
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Describe the operation of electromagnets
Discuss the properties of permanent magnets
Discuss the difference between the axis poles of the earth and the magnetic poles of the earth
Discuss the operation of electromagnets
Determine the polarity of an electromagnet when the direction of the current is known
Discuss the different systems used to measure magnetism
List magnetic devices used HVAC field
Quiz 05
Week 7
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Identify different types of Power supply and power distributions
Identify five (5) different types of power supply and distribution
Recognize the use of each type of power supply: Residential, Commercial, and Industrial
Differentiate the "Open" and "Closed" Delta transformer hook-up
Define the voltage drop allowance by NEC
Differentiate the single phase and three phase power supply
Calculate imbalanced voltage in three phase power supply by applying 2% rules
Quiz 04
Week 6
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Interpret current, voltage, and resistance reading of a circuit by using Ohm's law
Define an electric circuit: Controller, Path, Load, and Power Supply
Calculate total voltage, total resistance, and total amperage
Calculate voltage drop, current for each load
Calculate total wattage and wattage for individual load
Quiz 03
Lab - 02
Week 5
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Calibrate an ohmmeter, an ammeter, and a voltmeter with accuracy
Discuss the basic theory of electric motors and related devices
Explain the operating principles of various types of electric motors
Identify several types of electrical devices connected to electric motors
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List and describe devices that protect motors from overloads and overheating
List different types of electric motors: RSIR, CSIR, CSCR, PSC, and Shaded poles
Quiz 06
Lab - 03
Week 8
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List and describe devices that protect motors from overloads and overheating
Discuss the difference between a current protector and a overheating protector
Identify different types of overload: internal and external overload
Recognize the difference between the line circuit protector and the pilot circuit type protector
Apply techniques to check current overload and overheating protectors
Mid term examination
Week 9
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Use various electrical testing instruments to check motor windings, shorts, and grounds
Identify motor windings: Start - Run - Com terminals
Recognize different connections of single phase motors
Use an Ohmmeter to measure resistance of motor windings
Interpret the meaning of motor resistance readings
Practice the hook-up of single phase motors
Quiz 07
Lab - 04
Week 10 Identify the common types of electrical circuit controls used in HVAC field
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Identify the high voltage and low voltage in schematics
Identify a transformer, thermostat, pressure control devices, contactor, relays, and overloads
Understand the principle of operation each device
Categorize control devices in terms of temperature, pressure, electro-mechanical, etc...
Quiz 08
Lab - 05
Week 11
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Recall an electrical circuit and define it
Identify different types of diagram: Pictorial, Ladder, and Installation diagram
Recognize standard electrical symbols
Read schematic diagram
Interpret the sequence of operation
Learn rules how to read schematic
Quiz 09
Week 12
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Differentiate between standard electrical circuit diagrams and ladder diagrams
Interpret the operation of a complete schematic in heating and cooling system
Practice the different types of wiring diagram
Understand the function of each type
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Learn how to sequence the operation of each cycle: cooling or heating
Lab - 06
Quiz 10
Week 13
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Define a transformer and control voltage
Identify the primary and secondary voltage
Use the ohmmeter to measure resistance of primary and secondary taps of transformer
Use the voltmeter to take reading on live circuit of a transformer
Record the primary voltage and the secondary voltage
Determine the term VA applied to a control transformer
Calculate how much amperage can a 40/60 VA transformer put out
Calculate amperage a typical thermostat can handle
Practice how phase a transformer
Week 14
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Identify and Test electrical components
List all electrical components in Air Conditioning Unit
Use the proper meter to determine the condition of component
Record ohm reading, scale of meter, and list the name of component
Compare the actual reading to the recommended reading of a specific component
Quiz 11
Week 15
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Read and understand electrical circuitry
Interpret the operation of a complete schematic
Practice a cooling diagram
Practice a gas heating diagram
Practice an electric heating diagram
Quiz 12
Week 16 Final Exam Review
 Review single phase motor
 Instructor evaluation by using online survey
Final examination
__________________________________The End_______________________________
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