| Standard |
Provides an increased
level of concepts and theory beyond ACT 102. Students are introduced to more
design theory in commercial refrigeration. Topics include: refrigeration heat
calculation, equipment selection, refrigeration piping, codes, and
safety.
|
Competency
Areas |
Hours |
|
|
Refrigeration
Heat Calculation |
Class |
3 |
|
Equipment Selection |
D. Lab |
2 |
|
Refrigeration Piping |
P. Lab/O.B.I. |
0 |
|
Codes |
Credit |
4 |
|
Safety |
|
|
|
Prerequisites/Corequisites: |
| Course Guide |
|
Competency |
After completing this
section, the student will: |
Hours | ||
|
Class |
D.Lab |
P.Lab/
O.B.I. | ||
REFRIGERATION
HEAT CALCULATION |
7 |
5 |
0 | |
|
Theory |
Define
heat load. |
|
|
|
|
|
Discuss how heat leakage affects heat load calculators. |
|
|
|
|
|
|
|
| |
|
|
Discuss the variables that affect heat leakage and heat usage. |
|
|
|
|
|
Define total heat load. |
|
|
|
|
Application |
Perform
a load calculation on a sample building using a load calculation
form. |
|
|
|
|
EQUIPMENT SELECTION |
10 |
5 |
0 | |
|
Theory |
Discuss
evaporator and condensing unit capacities. |
|
|
|
|
|
Discuss types of evaporators. |
|
|
|
|
|
Define two stage compressors. |
|
|
|
|
|
Discuss compressor capacities and the variables that determine capacity. |
|
|
|
|
|
Discuss types of condensers. |
|
|
|
|
Application |
Using
load calculation forms and manufacturers' data, select the proper
evaporator and condensing unit for a walk-in cooler. |
|
|
|
|
REFRIGERATION PIPING |
5 |
5 |
0 | |
|
Theory |
Discuss
refrigeration line capacities for liquid and suction lines. |
|
|
|
|
|
Discuss oil problems in refrigerant lines. |
|
|
|
|
Application |
Install
a u-trap in a suction line. |
|
|
|
|
CODES |
6 |
5 |
0 | |
|
Theory |
Discuss
local code requirements concerning the installation of refrigeration
piping in a small commercial system. |
|
|
|
|
|
Explain the code requirements that must be followed when installing a commercial condensing unit. |
|
|
|
|
Application |
Perform
a trial code inspection on a new commercial refrigeration
installation. |
|
|
|
|
SAFETY |
2 |
0 |
0 | |
|
Theory |
Discuss
several safety factors to be considered when selecting commercial
refrigeration equipment. |
|
|
|
|
|
Discuss how the local code requirements for refrigeration piping enhance safety conditions. |
|
|
|
| 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/.