| Standard |
Introduces
principles of combustion and service requirements for gas heating systems.
Topics include: service procedures, electrical controls, piping, gas valves,
venting, code requirements, principles of combustion, and safety.
|
Competency
Areas |
Hours |
|
|
Service Procedures |
Class |
2 |
|
Electrical Controls |
D. Lab |
6 |
|
Piping |
P. Lab/O.B.I. |
0 |
|
Gas Valves |
Credit |
5 |
|
Venting |
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Code Requirements |
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Principles of Combustion |
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Safety |
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Prerequisites/Corequisites: |
| Course Guide |
|
Competency |
After completing this
section, the student will: |
Hours | ||
|
Class |
D.Lab |
P.Lab/
O.B.I. | ||
SERVICE
PROCEDURES |
6 |
10 |
0 | |
|
Inspection
|
Discuss
the inspection and cleaning of ducts. |
|
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Inspect gas burners. |
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Test
instruments |
Measure
airflow or pressure with manometers. |
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|
Measure airflow with anemometers. |
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|
Measure airflow with velocimeters. |
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|
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Troubleshooting |
Remove
or replace gas burners. |
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Discuss removal of asbestos insulation on ducts or pipes. |
|
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Remove or replace burners in forced air heating systems (150,000 BTU or less). |
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Perform gas burner operational checks. |
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ELECTRICAL
CONTROLS |
2 |
10 |
0 | |
|
Application |
Adjust
humidity equipment and controls. |
|
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Adjust safety controls. |
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Analyze pressure or temperature readings. |
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Adjust and calibrate electrical thermostats or pressure switches. |
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Adjust electronic controls. |
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Isolate electrical control malfunctions. |
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Remove or replace automatic heating controls or thermostats. |
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Remove or replace heater manual controls. |
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Remove or replace humidistats. |
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PIPING |
2 |
10 |
0 | |
|
Theory |
Discuss
proper pipe sizing according to available technical charts. |
|
|
|
|
Application |
Properly
connect gas lines to an existing natural gas furnace. |
|
|
|
GAS VALVES |
2 |
10 |
0 | |
|
Theory
|
Discuss
the basic functions of gas valves. |
|
|
|
|
|
Disassemble a gas valve, observe and discuss the various components, then reassemble. |
|
|
|
|
Application |
Connect
a gas valve to an existing natural gas furnace. |
|
|
|
VENTING |
2 |
10 |
0 | |
|
Theory |
Work
several test problems to properly size vents according to accepted
standards. |
|
|
|
|
Application |
Connect
the proper size vent to a multiple-appliance arrangement. |
|
|
|
CODE
REQUIREMENTS |
2 |
5 |
0 | |
|
Application |
Discuss
the code requirements that apply to gas heating systems. |
|
|
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|
PRINCIPLES
OF COMBUSTION |
2 |
5 |
0 | |
|
Theory |
Discuss
the fuel-to-air ratio necessary for proper combustion of the most popular
fuels. |
|
|
|
|
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Discuss the by-products of combustion and how they can be hazardous. |
|
|
|
SAFETY |
2 |
0 |
0 | |
|
Heating
systems |
Discuss
the various safety concerns confronting the heating technician. |
|
|
|
| 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/.