Standard

Rev. 03/20/04

ACT 107 – Air Conditioning Principles

Course Description

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.

 

Competency Areas

Hours

 

Types of AC Systems

Class

6

Heat‑Load Calculation

D. Lab

4

Properties of Air

P. Lab/O.B.I.

0

Psychrometrics

Credit

8

Duct Design

 

 

Air Filtration

 

 

Safety Principles

 

 

 

Prerequisites/Corequisites:

ACT 102

 

Course Guide

 

Competency

After completing this section, the student will:

Hours

Class

D.Lab

P.Lab/

O.B.I.
TYPES OF A/C SYSTEMS

12

12

0

Types of systems

Identify types of air conditioning systems.

 

 

 

Human comfort conditions

List human comfort conditions.

 

 

 

 

List coils used on DX equipment.

 

 

 

HEAT-LOAD CALCULATION

13

8

0

Tables

Discuss the various tables that are used in heat-load calculations.

 

 

 

Heat loss

Discuss factors which affect heat loss.

 

 

 

 

Work several test problems using heat loss calculation procedure.

 

 

 

Heat gain

Discuss factors which affect heat gain.

 

 

 

 

Work several test problems using heat gain calculation procedure.

 

 

 

PROPERTIES OF AIR

10

2

0

Dehumidification of air

Discuss theory of reheating systems.

 

 

 

Test instruments

Use an anemometer to measure velocity of air from a grille.

 

 

 

Air quantity measurements

Perform air property measurement.

 

 

 

PSYCHROMETRICS

10

3

0

Principles of humidity control

Use psychrometers to determine wet and dry bulb temperature.

 

 

 

Psychrometrics

Use psychrometric charts to determine efficiency.

 

 

 

DUCT DESIGN

10

12

0

Theory

Discuss several acceptable methods for duct design.

 

 

 

Types

Assemble two short duct runs using different types of duct.

 

 

 

Application

Discuss the factors involved in a duct application; types of duct materials, velocity, CFM, static pressure, length of duct runs, registers, and diffusers.

 

 

 

AIR FILTRATION

3

3

0

Types of filters

Change or wash filters.

 

 

 

Servicing electronic filters

Service electronic filters.

 

 

 

SAFETY PRINCIPLES

2

0

0

Safety concerns

Discuss safety concerns that need to be addressed in designing air conditioning systems.

 

 

 

 

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/.