May 23, 2012
ACR126/ASC 126
COMMERCIAL HEATING SYSTEMS
Plan of Instruction
Effective Date: 2013
Version Number: 2006-2
COURSE DESCRIPTION: This course covers the theory and application of larger
heating systems emphasizing commercial applications such as gas heaters, boilers, unit
heaters, duct heaters, and hydronic systems. Upon completion, students will be able to
troubleshoot and perform general maintenance on commercial heating systems.
CREDIT HOURS
Theory
2 credit hours
Lab
1 credit hour
Total
3 credit hours
NOTE: Theory credit hours are a 1:1 contact to credit ratio. Colleges may schedule lab hours as 3:1 and/or
2:1 contact to credit ratio. Clinical hours are 3:1 contact to credit ratio. (Ref Board Policy 705.01)
The Alabama Community College System
Copyright © 2012
All Rights Reserved
Commercial Heating Systems
ACR/ACS 126
PREREQUISITE COURSES
As determined by college.
CO-REQUISITE COURSES
As determined by college.
INDUSTRY COMPETENCIES:
 Explain basic functions of commercial heating systems
 Troubleshoot electric forced air/boiler systems.
 Replace components of electric commercial heating systems.
 Troubleshoot gas forced air/boiler systems.
 Replace components of gas forced air/boiler systems.
INSTRUCTIONAL GOALS:
Cognitive: Comprehend foundational knowledge of commercial heating systems.
Psychomotor: apply foundational knowledge of foundational commercial heating
systems.
Affective: Value the importance of safety while performing refrigeration service
procedures.
STUDENT OBJECTIVES
Unless otherwise indicated, evaluation of student’s attainment of objectives is based on
knowledge gained from this course. Specifications may be in the form of, but not limited
to, cognitive skills, manufacturer’s specifications, technical orders, regulations, national
and state codes, certification agencies, locally developed lab assignments, or any
combination of specifications.
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Commercial Heating Systems
ACR/ACS 126
STUDENT LEARNING OUTCOMES
MODULE A – INTRODUCTION TO COMMERCIAL HEATING SYSTEMS
PROFESSIONAL COMPETENCIES
PERFORMANCE OBJECTIVES
A1.0 Explain basic functions of
A1.1 This competency is measured
commercial heating systems.
cognitively.
LEARNING OBJECTIVES
A1.1.1 Define terms associated with commercial heating systems.
A1.1.2 Explain safety guidelines associated with commercial heating systems.
A1.1.3 Explain lockout/tag out procedures.
A1.1.4 Interpret wiring schematics.
A1.1.4 Explain Material Safety Data Sheets (MSDS) requirements.
A1.1.5 Identify tools used to install and service commercial heating systems.
A1.1.6 Differentiate between residential and commercial heating systems.
A1.1.7 Explain the operation of various types of commercial heating systems.
MODULE A OUTLINE:
 General safety
 Lockout/tag out
 Tool Use
 Housekeeping
 MSDS
 Overview of residential heating systems
 Introduction to commercial heating systems
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KSA
Indicators
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Commercial Heating Systems
ACR/ACS 126
MODULE B - ELECTRIC FORCED AIR/BOILER SYSTEMS
PROFESSIONAL COMPETENCIES
B1.0
Troubleshoot electric forced
air/boiler systems.
B2.0
PERFORMANCE OBJECTIVES
B1.1 Use troubleshooting skills to
isolate faults in a forced
air/boiler heating system.
B1.1 This competency is measured
cognitively.
KSA
Indicators
3
Explain procedures for replacing
various components on an
electric commercial heating
system.
LEARNING OBJECTIVES
B1.1.1 Identify components of an electric commercial heating system.
B1.1.2 Describe the operation of various components.
B1.1.3 Describe the sequence of operation.
B1.1.4 Describe various troubleshooting techniques for isolating faults in
various electric systems.
B2.1.1 Explain considerations for replacing various components of an electric
commercial heating system.
MODULE B OUTLINE:
 Major electric commercial heating system components
 Thermostat
 Transformer
 Heating element
 Sequencing device
 Safety devices
 Blower and motor
 Pumps
 Water pressure regulators
 Other components
 Troubleshooting procedures
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Commercial Heating Systems
ACR/ACS 126
MODULE C - GAS FORCED AIR/BOILER SYSTEMS
PROFESSIONAL COMPETENCIES
C1.0
Troubleshoot gas forced air/boiler
systems.
C2.0
PERFORMANCE OBJECTIVES
C1.1 Use troubleshooting skills to
isolate faults in a gas forced
air/boiler system.
C1.1 This competency is measured
cognitively.
KSA
Indicators
3
Explain procedures for replacing
various components on a gas
commercial heating system.
LEARNING OBJECTIVES
C1.1.1 Identify components of gas forced air/boiler system.
C1.1.2 Describe the operation of various components.
C1.1.3 Describe the sequence of operation.
C1.1.4 Describe various troubleshooting techniques for isolating faults in
various gas forced air/boiler systems.
C2.1.1 Explain considerations for replacing various components of a gas
commercial heating system.
MODULE C OUTLINE:
 Major gas commercial heating system components
 Thermostat
 Transformer
 Burner
 Safety devices
 Blower and motor
 Flame sensors
 Regulators
 Gas control module
 Other components
 Troubleshooting procedures
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Commercial Heating Systems
ACR/ACS 126
MODULE D – SERVICING HYDRONIC SYSTEMS
INDUSTRY COMPTENCIES
D1.0
D2.0
Explain principles of hydronic
systems.
Service hydronic systems.
STUDENT PERFORMANCE
D1.1 This competency is measured
cognitively.
D2.1 Given equipment, materials, and
standards, troubleshoot a hydronic
system to determine proper
operation.
KSA
Indicators
2
3
LEARNING OBJECTIVES
D1.1.1 Explain the principles and uses of hydronics.
D1.1.2 Explain the function of various components of hydronic systems.
D1.1.3 Describe chemical requirements for hydronic systems.
D1.1.4 Explain the concepts of various piping system materials and designs.
D1.1.5 Explain how centrifugal pumps operate.
D1.1.6 Explain how to match pumps to systems.
D1.1.7 Identify variables involved in terminal unit control.
D1.1.8 Explain considerations for optimizing water chiller operation.
D2.1.1 Explain the operation of test instruments used to service hydronic
systems.
D2.1.2 Explain how to conduct a test to ensure proper operation of hydronic
systems.
MODULE D OUTLINE:
 Principles and uses of hydronics
 Hydronic system components
 Relief valves
 Feed valves
 Air separator
 Tanks
 Flow-control valve
 Electric zone valves
 Non-electric zone valves
 Circulators
 Pumps
 Other components
 Chemical requirements
 Piping systems
 Centrifugal pumps
 Terminal unit controls
 Water chiller operation
 Troubleshooting hydronic systems
 Procedures
 Test instruments
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Commercial Heating Systems
ACR/ACS 126
LEARNING OBJECTIVES TABLE OF SPECIFICATIONS
The table below identifies the percentage of learning objectives for each module. Instructors should
develop sufficient numbers of test items at the appropriate level of evaluation.
Limited Knowledge
and Proficiency
KSA
Module A
Module B
Module C
Module D
1
25%
25%
60%
10%
Indicator
Key Terms
1
Limited
Knowledge
and
Proficiency
2
Moderate
Knowledge
and
Proficiency
3
Advanced
Knowledge
and
Proficiency
4
Superior
Knowledge
and
Proficiency
A
Affective
Objective
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Moderate
Knowledge and
Proficiency
2
75%
50
0
70%
Advanced
Knowledge and
Proficiency
3
0
25%
40%
20%
Superior
Knowledge and
Proficiency
4
0
0
0
0
Learner’s Knowledge, Skills and Abilities
Description
 Recognize basic information about the subject including terms and
nomenclature.
 Students must demonstrate ability to recall information such as facts,
terminology or rules related to information previously taught.
 Performs simple parts of the competency. Student requires close
supervision when performing the competency.
 Distinguish relationships between general principles and facts. Adopts
prescribed methodologies and concepts.
 Students must demonstrate understanding of multiple facts and
principles and their relationships, and differentiate between elements
of information. Students state ideal sequence for performing task.
 Performs most parts of the competency with instructor assistance as
appropriate.
 Examines conditions, findings, or other relevant data to select an
appropriate response.
 The ability to determine why and when a particular response is
appropriate and predict anticipated outcomes.
 Students demonstrate their ability to seek additional information and
incorporate new findings into the conclusion and justify their answers.
 Performs all parts of the competency without instructor assistance.
 Assessing conditions, findings, data, and relevant theory to formulate
appropriate responses and develop procedures for situation resolution.
Involves higher levels of cognitive reasoning.
 Requires students to formulate connections between relevant ideas
and observations.
 Students apply judgments to the value of alternatives and select the
most appropriate response.
 Can instruct others how to do the competency.
 Performs competency quickly and accurately.
 Describes learning objectives that emphasize a feeling tone, an
emotion, or a degree of acceptance or rejection.
 Objectives vary from simple attention to selected phenomena to
complex but internally consistent qualities of character and conscience.
 Expressed as interests, attitudes, appreciations, values, and emotional
sets or biases.
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