| Standard |
Introduces the application of fundamental theories and concepts of refrigeration. Emphasis will be placed on equipment application and installation procedures. Topics include: equipment application, installation procedures, cycle controls, energy management, and safety.
|
Competency
Areas |
Hours |
|
|
Equipment
Application |
Class |
4 |
|
Installation Procedures |
D. Lab |
8 |
|
Cycle Controls |
P. Lab/O.B.I. |
0 |
|
Energy Management |
Credit |
8 |
|
Safety |
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Prerequisite/Corequisite: |
| Course Guide |
|
Competency |
After completing this
section, the student will: |
Hours | ||
|
Class |
D.Lab |
P.Lab/
O.B.I. | ||
EQUIPMENT
APPLICATION |
10 |
20 |
0 | |
|
Theory |
Discuss
the similarities between reach-in cabinets and walk-in coolers. |
|
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|
Discuss how florists’ cabinets are different from other reach-in cabinets. |
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|
Application |
Using
the proper charts and specifications, select the proper equipment for a
sample situation. |
|
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|
INSTALLATION
PROCEDURES |
10 |
30 |
0 | |
|
Theory |
Discuss
some of the types of commercial installations. |
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|
|
Discuss the order in which the installation of equipment should proceed. |
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Discuss the proper procedure for refrigerant charging and pressure-testing a newly installed system. |
|
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| |
|
Application |
Install
a blower evaporator in a walk-in cooler. |
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Perform the initial start-up test on an air-cooled condensing unit. |
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| |
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Charge a system with refrigerant. |
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CYCLE
CONTROLS |
10 |
15 |
0 | |
|
Theory |
Discuss
the main purposes of cycle controls, or metering devices, in commercial
refrigeration applications. |
|
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|
|
|
Explain the basic operating principles behind the constant-pressure valve. |
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|
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Discuss the float arrangement type of cycle control. |
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|
Application |
Install
a low-side float in a commercial system. |
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Install a high-side float in a commercial system. |
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Install a constant-pressure valve in a commercial system. |
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ENERGY
MANAGEMENT |
8 |
15 |
0 | |
|
Theory |
Discuss
how cylinder unloading in compressors can result in energy savings. |
|
|
|
|
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Discuss several of the common energy management programs in use in modern commercial systems. |
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|
Application |
Retrofit
an existing system with energy saving devices such as set-back thermostats
or timers. |
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Check a cylinder unloading system for proper operation. |
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Install an evaporator that takes advantage of a comprehensive energy design. |
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SAFETY |
2 |
0 |
0 | |
|
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Discuss safety concerns to be aware of when installing commercial refrigeration systems. |
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Discuss safety clothing or equipment used when handling refrigerants. |
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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/.