Standard |
Introduces fundamental theory and techniques needed to identify major components and functions of air conditioning systems. Instruction is given on types of air conditioning systems and use of instrumentation. Topics include: types of AC systems, heat‑load calculation, properties of air, psychrometrics, duct design, air filtration, and safety principles.
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Competency Areas |
Hours
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Types of AC
Systems |
Class |
7 |
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Heat‑Load
Calculation |
D. Lab |
3 |
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Properties of
Air |
P. Lab/O.B.I. |
0 |
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Psychrometrics |
Credit |
8 |
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Duct Design |
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Air Filtration |
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Safety
Principles |
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Prerequisites/Corequisites: |
Course Guide |
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Competency |
After completing this
section, the student will: |
Hours |
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Class |
D.Lab |
P.Lab/ O.B.I. |
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TYPES OF A/C SYSTEMS
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13 |
10 |
0 |
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Types of systems |
Identify types of air conditioning systems. |
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Human comfort conditions |
List human comfort conditions. |
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HEAT-LOAD CALCULATION
|
14 |
5 |
0 |
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Tables |
Discuss the various tables that are used in heat-load
calculations. |
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Heat loss |
Discuss factors which affect heat loss. |
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Work several test problems using heat loss calculation procedure. |
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Heat gain |
Discuss factors which affect heat gain. |
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Work several test problems using heat gain calculation procedure. |
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PROPERTIES OF AIR
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5 |
1 |
0 |
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Dehumidification of air |
Discuss theory of reheating systems. |
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Test instruments |
Use an anemometer to measure velocity of air from a
grille. |
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Air quantity measurements |
Perform air property measurement. |
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PSYCHROMETRICS
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5 |
2 |
0 |
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Principles of humidity control |
Use psychrometers to determine wet and dry bulb
temperature. |
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Psychrometrics |
Use psychrometric charts to determine efficiency. |
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DUCT DESIGN
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10 |
10 |
0 |
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Theory |
Discuss several acceptable methods for duct design. |
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Types |
Assemble two short duct runs using different types of
duct. |
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Application |
Discuss the factors involved in a duct application;
types of duct materials, velocity, CFM, static pressure, length of duct runs,
registers, and diffusers. |
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AIR FILTRATION
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2 |
2 |
0 |
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Types of filters |
Change or wash filters. |
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Servicing electronic filters |
Service electronic filters. |
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SAFETY
PRINCIPLES
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1 |
0 |
0 |
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Safety concerns |
Discuss safety concerns that need to be addressed in
designing air conditioning systems. |
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Suggested Resources |
Althouse, A. D., et
al. (1988). Modern refrigeration &
air conditioning. South Holland, IL: Goodheart-Willcox. http://www.goodheartwillcox.com.
Haines, R. (1987). Control systems for heating, ventilating,
& air conditioning (4th ed.). New York: Van Nos Reinhold.
Herman, S. L., &
Sparkman, B. L. (1986). Electricity &
controls for heating, ventilating, & air conditioning (4th ed.).
Albany, NY: Delmar. http://www.delmar.com/.
Langley, B. C.
(1985). Control systems for air
conditioning & refrigeration. Englewood Cliffs, NJ: Prentice Hall. http://www.cefga.org/.
Langley, B. C.
(1986). Cooling systems troubleshooting
handbook. Englewood Cliffs, NJ: Prentice Hall. http://www.cefga.org/.
Langley, B. C.
(1988). Electric controls for
refrigeration & air conditioning (2nd ed.). Englewood Cliffs, NJ:
Prentice Hall. http://www.cefga.org/.
Long, W. (1985). Refrigeration & air conditioning:
Operation & analysis servicing. New York: Macmillan. http://www.macmillan.com/.
Miles, L. (1987). Refrigeration & air conditioning
(2nd ed.). Englewood Cliffs, NJ: Prentice Hall. http://www.cefga.org/.
Miller, R. (1983). Refrigeration and air conditioning
technology. New York: Bennett Il.
Miller, R. (1988). Electricity for heating, air conditioning
& refrigeration. San Diego, CA: Harcourt Brace Jovanovich. http://www.harcourt.com/.
National Center for Construction Education and Research
(latest edition). NCCER: Core Curricula:
Basic Communication Skills. Englewood Cliffs, NJ: Prentice Hall. http://www.cefga.org/.
Prasad, M. (1983). Refrigeration & air conditioning.
New Delhi: Wiley Eastern, Ltd. http://www.wiley.com/.
Rudman, J. (1991). Air conditioning, heating &
refrigeration mechanic. Syosset, NY: National Learning.
Smith, R. E. (1987).
Electricity for refrigeration, heating
& air conditioning. Albany, NY: Delmar. http://www.delmar.com/.
Swenson, S. D.
(1990). Troubleshooting & servicing air
conditioning equipment. Troy, MI: Busn News.
Terminology of heating, ventilation, air
conditioning, & refrigeration.
(1986). Atlanta: American Heating, Refrigeration, & Air Engineering.
Whitman, W., &
Johnson, W. (1991). Refrigeration &
air conditioning technology (2nd ed.). Albany, NY: Delmar. http://www.delmar.com/.