Standard |
Introduces the use of refrigeration tools, materials, and procedures needed to install, repair, and service refrigeration systems. Topics include: refrigeration tools; piping practices; service valves; leak testing; refrigerant recovery, recycling, and reclamation; evacuation; charging; and safety.
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Competency Areas |
Hours
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Refrigeration Tools |
Class |
4 |
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Piping Practices |
D. Lab |
6 |
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Service Valves |
P. Lab/O.B.I. |
0 |
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Leak Testing |
Credit |
7 |
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Refrigerant Recovery, Recycling, and Reclamation |
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Evacuation |
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Charging |
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Safety |
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Prerequisite/Corequisite: |
ACT 100 |
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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REFRIGERATION TOOLS |
7 |
30 |
0 |
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Types of tubing |
Identify different types of tubing used in refrigeration industry. |
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Fitting and sizes |
Identify various fittings commonly used in refrigeration industry. |
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Fabrication and bending |
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Bend copper tubing. |
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Braze or silver solder lines or fittings, such as condensers, receivers, evaporators, tubing, or piping. |
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Flare copper tubing. |
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Measure and cut copper tubing. |
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Remove or install threaded fittings. |
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Soldering |
Soft solder lines or fittings, such as condensers, receivers, evaporators, tubing, or piping. |
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Silver braze lines or fittings. |
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Silver solder lines or fittings. |
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Safety |
Identify and discuss potential hazards in working with copper tubing. |
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PIPING PRACTICES |
6 |
5 |
0 |
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Calculations and theory |
Determine the correct refrigerant line sizes. |
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Install insulation. |
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Types of pipe (steel, iron, and PVC) |
Identify various types of pipe. |
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Pipe fittings and sizes |
Remove or install threaded fittings. |
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Cutting and threading |
Measure and cut pipes. |
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Installing pipe and pipe fittings |
Remove or install piping or tubing, such as water, refrigerant, or fuel lines. |
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Safety |
Identify and discuss safety concerns found in working with pipe and pipe fittings. |
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SERVICE VALVES |
2 |
3 |
0 |
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Types of gauges |
Identify and discuss the various types of gauges. |
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Gauge maintenance |
Calibrate gauges. |
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Inspect gauges or lines. |
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Test gauges using pressure test bench. |
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Installation of gauge manifold |
Purge lines. |
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Safety |
Discuss the potential hazards of working with gauges. |
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LEAK TESTING |
2 |
3 |
0 |
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Detection devices |
Discuss the various types of leak detectors. |
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Methods of detection |
Locate refrigerant leaks using electronic leak detectors. |
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Locate refrigerant leaks using soap solutions. |
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Perform pressure tests. |
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Safety |
Identify hazards of working with refrigerants. |
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REFRIGERANT RECOVERY, RECYCLING, AND RECLAMATION |
6 |
6 |
0 |
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Theory |
Discuss stratospheric ozone depletion. |
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Discuss regulations relating to the discharge of ozone layer depleting substances. |
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Discuss refrigerant recovery, recycling, and reclamation procedures as means of reducing ozone layer depletion. |
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Equipment |
Describe recovery and reclamation equipment use. |
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Procedures |
Demonstrate refrigerant recovery and recycling procedures. |
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Safety |
Demonstrate safe procedures in recovering, recycling, and transferring refrigerants. |
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EVACUATION |
6 |
5 |
0 |
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Theory |
List the proper procedures for evacuating refrigeration systems. |
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Equipment |
Identify and explain the equipment used in evacuating a refrigeration system. |
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Procedure |
Evacuate refrigeration or air conditioning systems. |
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Purge lines. |
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Discuss desiccants. |
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Remove or install gauges. |
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Replace drier filters or cartridges. |
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Safety |
Discuss safety factors involved in evacuating refrigeration systems. |
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CHARGING |
9 |
8 |
0 |
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Equipment and supplies |
Charge refrigeration system. |
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Safety |
Determine performance by using P-T chart. |
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SAFETY |
2 |
0 |
0 |
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Write a summary of safety concerns for this section. |
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Suggested Resources |
Books
Althouse, A. D., et al. (1988). Modern refrigeration & air conditioning.
South Holland, IL: Goodheart-Willcox.
Lang, V. P. (1987). Principles of air conditioning (4th ed.). Albany, NY: Delmar.
McQuiston, F. C., & Parker, J. D. (1988). Heating, ventilating, & air
conditioning: Analysis & design (3rd ed.). New York: John Wiley & Sons.
Miles, L. (1987). Refrigeration & air conditioning (2nd ed.). Englewood Cliffs,
NJ: Prentice Hall.
Miller, R. (1983). Refrigeration and air conditioning technology. New York: Bennett
Il.
Prasad, M. (1983). Refrigeration & air conditioning. New Delhi: Wiley Eastern,
Ltd.
Rudman, J. (1991). Introduction to air conditioning, refrigeration, & heating.
Syosset, NY: Natl Learning.
Terminology of heating, ventilation, air conditioning, & refrigeration. (1986). Atlanta: American Heating, Refrigeration, & Air Engineering.