JEFFERSON COLLEGE
COURSE SYLLABUS
HRA 225
RESIDENTIAL HEATING SYSTEMS
5 Credit Hours
Prepared by:
Prepared by: Roy H. Stueve
Date: March 28, 2010
Career & Technical Education
Elizabeth Check, Dean
Mary Beth Ottinger, Division Chair
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HRA 122
I.
RESIDENTIAL HEATING SYSTEMS
CATALOG DESCRIPTION
A. Prerequisite: HRA121, Refrigeration Mechanical Systems, HRA122, Air Conditioning
Mechanical Systems.
B. 5 semester credit hours
C. Residential Heating Systems studies the theory, installation, diagnosis, and service of
residential heating systems. This course covers high efficiency gas heating systems, oil
systems, and electric heating systems.
II.
EXPECTED LEARNING OUTCOMES / ASSESSMENT MEASURE
Students will be able to understand and
check electric forced air heating systems.
Students will understand electric heat
functioning with heat pump system.
Students will understand and wire gas
furnaces and gas furnace controls.
Students will be able to calculate
ductwork sizes for residential heating and
cooling equipment.
Students will understand and be able to
check gas furnace controls for high
efficiency and standing pilot.
Students will understand gas piping and
pipe sizing.
Students will understand fuel oil
characteristics for oil furnaces.
In-class exam as well as homework and/or
quizzes, and/or in-class projects
Students will understand and be able to
service oil furnace electric systems and
control systems.
Students will understand and check oil
furnace combustion efficiency.
Students will understand and service gas
fueled hydronic heating with electric
wiring and control wiring.
Students will understand and check
indoor air quality. Students will check for
air pollutants.
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III.
COURSE OUTLINE
SECTION 6: AIR CONDITIONING
(HEATING AND HUMIDIFICATION)
Unit 30 Electric Heat
1. Introduction
2. Portable Electric Heating Devices
3. Radiant Heating Panels
4. Electric Baseboard Heating
5. Unit Heaters
6. Electric Hydronic Boilers
7. Central Forced-Air Electric Furnaces
8. Automatic Controls for Forced-Air Electric Furnaces
9. The Low-Voltage Thermostat
10. Controlling Multiple Stages
11. Wiring Diagrams
12. Control circuits for Forced-Air Electric Furnaces
13. Fan Motor Circuits
14. Contactors for Controlling Electric Furnaces
15. Airflow in Electric furnaces
16. Service Technician Calls
Unit 31 Gas heat
1.
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23.
Introduction to Gas-Fired, Forced-Hot-air Furnaces
Types of Furnaces
Gas Fuels
Gas Combustion
Gas Regulators
Gas Valve Solenoid Valve
Solenoid Valve
Diaphragm Valve
Heat Motor-Controlled Valve
Automatic Combination Gas Valve
Manifold
Orifice
Burners
Heat Exchangers
Fan Switch
Limit Switch
Pilots
Safety Devices at the Standing Pilot
Ignition systems
Flame Rectification
High-Efficiency Gas Furnaces
Electronic Ignition Modules and Integrated Furnace Controllers
Two-Stage Gas Furnaces
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24.
25.
26.
27.
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31.
Modulating Gas Furnaces
Venting
Gas Piping
Gas Furnace Wiring Diagrams and Troubleshooting Flowcharts
Troubleshooting the Safety Pilot-Proving Device – The Thermocouple
Troubleshooting spark Ignition and Intermittent Pilot Systems
Combustion Efficiency
Service Technician Calls
Unit 32 Oil Heat
1.
2.
3.
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18.
Introduction to Oil-Fired Forced-Warm Air Furnaces
Physical Characteristics
Fuel Oils
Oil Storage
Fuel Oil Supply Systems
Combustion
Preparation of Fuel Oil for Combustion
By-Products of Combustion
Gun-Type Oil Burners
Oil Furnace Wiring Diagrams
Stack Switch Safety Control
Cad Cell Safety Control
Combustion chamber
Heat Exchanger
Condensing Oil Furnace
Service Procedures
Combustion Efficiency
Service Technician Calls
Unit 33 Hydronic Heat
1.
2.
3.
4.
5.
6.
7.
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10.
Introduction to Hydronic Heating
The Heat Source
The Basic Hydronic system
The Point of No Pressure Change
Other Hydronic System Components
High-Temperature Hydronic Piping systems
Radiant, Low-Temperature Hydronic Piping systems
Combination (High- and Low-Temperature) Piping Systems
Tankless Domestic Hot Water Heaters
Service Technician Calls
Unit 34 Indoor Air Quality
1.
2.
3.
4.
5.
6.
Introductions
Sources of Indoor Air Pollution
Controlling Indoor air Contamination
Common Pollutants
Contamination Source Detection and Elimination
Ventilation
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7.
8.
9.
10.
11.
12.
IV.
Air Cleaning
Duct Cleaning
Air Humidification
Sizing Humidifiers
Installation
Service, Troubleshooting, and Preventive Maintenance
METHOD OF INSTRUCTION
A. Classroom Lecture
B. Lab Demonstrations
C. Specialty Lectures by Industry Personnel
V.
REQUIRED TEXTBOOK(S)
Refrigeration and Air Conditioning Technology; 6th Edition; Whitman, Johnson, Tomczyk,
Silberstein; Delmar Publications; ISBN: 1-4283-1936-0
VI.
REQUIRED MATERIALS
1. Electronic calculator with scientific notation
2. Basic hand tools (as outlined on attached tool list)
VII.
SUPPLEMENTAL REFERENCES
Modern Refrigerating and Air Conditioning; Althouse, Turnquist, Bracciano; 18th
Edition; ISBN: 1-59070-280-8
VIII.
METHOD OF EVALUATION
A. Theory
Tests, Quizzes, Homework
B. Shop/Lab
C. Instructor Evaluation, Attendance
IX.
45%
45%
10%
ADA STATEMENT
Any student requiring special accommodations should inform the instructor and the
Coordinator of Disability Support Services (Library; phone 636-797-3000, ext. 169).
X.
ACADEMIC HONESTY STATEMENT
All students are responsible for complying with campus policies as stated in the Student
Handbook (see College Website).
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HEATING, REFRIGERATION AND AIR CONDITIONING
HAND TOOL LIST
All of the tools on the following list will be used in the first and second years of training.
All tools and equipment should be marked for identification. Any used tools or similar
equipment are acceptable provided they are safe to use and are adequate for the program.
The tools marked with an * may be purchased through different suppliers at a student
discount.
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Padlock with keys or combination lock
Tool pouch with belt or small tool box
VOM Fieldpiece SC76
Pump (multi-pliers) pliers – insulated handle only – 10”
Screwdriver pocket size – square tip
Screwdriver 6” blade – square tip – insulated handle only
Screwdriver 6” blade – Phillips’ tip – insulated handle only or multi-bit or
combination set
Long-nose (needle-nose) pliers #6 – insulated handle only
Slip-joint (wire pliers) pliers #6 – insulated handle only
Diagonal (side cutters) pliers #6 – insulated handle only
Protective (safety) glasses, clear glass w/side shields only (students must have and
use safety glasses in the shop area at all times)
Center punch
Hammer ball bein 8 oz. (no claw hammer)
* Allen Screw Wrench set #TL 16 or equal (must have 6” shafts)
Nut Driver Set 3/16” to 1/2” (or socket set)
6-piece open-end wrench set 3/8” to 11/16” (or box-end wrench set)
8” adjustable wrench
Steel-tape rule 6”
Robinair gauge manifold set #40153 or equal
10” adjustable wrench
Tool box with tray
*Flaring tool set 3/16” to 5/8”
*Tube cutter 3/16” to 5/8”
*Swaging tool set 3/16”to 5/8” (5pc)
*Tubing reamer #208F
*Thermometer pocket -20° to 220° F (no glass)
*Reversible ratchet wrench ¼”, 3/8”, 3/16”, 5/16”
*Tubing cutter, small (Imp) TC1050
*Constrictor wheel #76637
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SHOP WORK SCHEDULE
All shop work assignments are in lab manual, Refrigeration & Air Condition Technology,
Sixth Edition; Delmar Cengage Learning. Learning assignments in lab manual will follow
scheduled theory lecture chapters. Chapter One in theory textbook, Refrigeration & Air
Condition Technology by Bill Whitman, Bill Johnson, John Tomczyk, and Eugene
Silberstein, will be Chapter One in lab manual, Refrigeration & Air Condition Technology.
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