competency in skills and knowledge through assessment tests,
but are not required to complete a specific number of hours.
HEATING, AIR CONDITIONING, & REFRIGERATION INSTALLER/SERVICER
Anonymous
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Work Process Content
On the Job Training
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Safety Training PPE - (LOTO, Ladder Safety, Fall Protection, etc.)
9
- Demonstrate safe handling of refrigerants
- Demonstrate safe handling of pressurized gasses
- Demonstrate safe handling of combustibles
- Appropriately use SDS (Safety Data Sheet) information
- Work in a safe and workman-like manner abiding applicable local, state, and federal regulations; EPA (environmental), DOT (motor vehicles) and OSHA (worker safety)
- Demonstrate lockout & tag out procedures
- Demonstrate safe ladder usage
- Demonstrate torch safety
- Demonstrate use of personal fall protection equipment
Trade Mathematics
3
- Calculate the volume and area of basic geometric shapes
- Calculate fan speed (RPM) required to produce a specified change in volume (CFM)
- Use Ohm’s Laws and solve for various calculations
Electrical Power
7
- Diagnose and repair motor starter circuits and various types of electrical motors
- Troubleshoot and repair overcurrent protection and circuit breakers
- Troubleshoot types of circuits-series, parallel, and series-parallel
- Use electrical instruments and multi-meters to locate faults and troubleshoot low voltage control circuits
- Use electrical instruments and multi-meters to locate faults and troubleshoot high/line voltage power circuits
- Read wiring schematics, pictorial diagrams, and ladder diagrams
- Identify wiring symbols
Heating Systems
4
- Troubleshoot gas heating pilot systems and flame verification
- Identify gas heating components and demonstrate ability to troubleshoot common failures
- Identify and install proper gas vent sizing, proper draft verification, and solve combustion related issues
- Identify boiler components, safeties, and knowledge of basic system operation
Cooling Systems
4
- Describe temperature pressure relationships
- Evaluate cooling systems and determine specific deficiencies and corrective actions required
- Identify and evaluate various types of compressors and their performance
- Inspect cooling system for primary controls, safeties, refrigerant control valves, and regulators
Air Distribution Systems
5
- Design a duct system using the relationship between pressure, velocity, and volume in distribution systems
- Use a duct calculator and solve for airflow related variables and duct sizing/flow calculations
- Appropriately use air measurement instruments
- Identify and install duct system components, fittings and support systems
- Use energy efficient insulation methods and sealing techniques for duct systems
Copper, Plastic, and Steel Piping
3
- Install and support soldered/brazed joints and mechanical/flared connections of various types of copper pipe/tubing
- Design and install steel piping in residential and commercial applications using fitting geometry including allowances, methods of joining and threading, installation of hangers and other support means
- Install various types of pipe insulation materials
Electrical Motors and Compressors
8
- Perform diagnostics on various types of single and three phase motors and wiring methods including multispeed, start relays and start/run capacitors
- Identify and describe various methods of compressor capacity control
- Identify and describe compressor failures due to electrical, mechanical, hydraulic, and lubrication issues
- Identify and explain the operation of compressor protection devices
- Use pressure-temperature charts to calculate system superheat and sub cooling
- Select appropriate refrigerant for compatible oil used in various temperature range applications
- Identify sources of oil contamination
- Use common refrigerant retrofit processes including system cleanup and lubricant changes
Leak Detection, Evacuation, Recovery and Charging Processes
3
- Check refrigerant circuits for leaks using equipment and procedures
- Demonstrate system evacuation procedures including recovery, recycle, and reclamation of refrigerants
- Use proper charging techniques with various types of zeotropic and zeotropic refrigerant
Metering Devices
1
- Identify service issues with various metering devices and troubleshoot and repair/replace the devices
Heat Pumps
4
- Explain the operation of various types of heat pump systems
- Troubleshoot and repair components, controls, and supplemental heat systems
- Troubleshoot common service issues and repairs as well as installation methods
- Troubleshoot and replace a four-way valve/reversing valve in a heat pump system
Equipment Maintenance
4
- Identify common seals, bearings, gaskets and packing materials
- Properly use common lubricants
- Identify belt drive components and replace, align, and adjust tension these components
- Inspect and maintain common packaged and split HVACR systems
Sheet Metal and/or Duct Systems
7
- Identify and install common types of sheet metal ducts and/or duckboard using joining, support and reinforcement methods
- Internally and externally insulate and attenuate metal ducts
- Identify and install dampers, access doors and other accessories
- Install flexible duct connectors and systems
- Use a velometer to determine system airflow
- Test the properties of air and psychometrics as related to human comfort and maintaining conditioned spaces
- Use tools and instruments to test air balance in HVAC systems
Commercial Airside Equipment
4
- Describe commercial airside, ventilation, and exhaust systems
- Demonstrate the knowledge of constant volume, variable volume and variable volume/temperature (VVT) systems and their applications
- Operate various air terminal and delivery equipment
- Identify the key components, the operation, and common service issues pertaining to packaged and split air handling equipment, economizers, air filtration and other common accessories
Motor and Control Circuit Troubleshooting
5
- Troubleshoot and service electronically commutated motors (ECM)
- Troubleshoot and service electronically commutated motors (ECM)
- Troubleshoot common control circuits and load components
- Operate, install, and troubleshot temperature controls and various types of thermostats
- Use wiring diagrams necessary to troubleshoot control system failures
Cooling Systems Troubleshooting
1
- Recognize and remedy specific system faults and failures common to packaged/split cooling and heat pump systems with understanding of refrigerant cycle
Heat Pump Systems Troubleshooting
3
- Explain the sequence of operation of common heat pump systems in the heating, cooling, and defrost modes
- Explain the operation of supplemental heat and dual fuel systems in relationship to heat pump systems
- Diagnose and troubleshoot heat pump systems, controls, and components
Gas Heating Systems Troubleshooting
4
- Explain the sequence of operation of common gas heating systems and common system/component failures
- Diagnose and troubleshoot gas heating systems, controls, flame and pilot verification systems, and components
- Diagnose and correct operational issues of natural draft, power draft, and induced draft equipment types
- Identify and install appropriate vent types for condensing and non-condensing equipment
Air Handler and Furnace Accessories Troubleshooting
2
- Explain the sequence of operation of common airside accessories- humidifiers, electronic air cleaners, economizers, UV lighting systems, and heat recovery ventilators/systems
- Identify faults and repair of common accessories
Zoning, Ductless and Variable Refrigerant Flow (VRF) Systems
2
- Operate and adjust common zoning, damper & Variable Actuator Vein/Variable Valve Timing Actuator (VAV/VVT) systems and identify common system/component failures
- Troubleshoot, service, and install ductless and Variable Refrigerant Flow (VRF) systems
Indoor Air Quality (IAQ)
3
- Determine IAQ issues and effects on occupants
- Resolve IAQ issues by explaining how acceptable IAQ can be achieved
- Identify IAQ based HVAC equipment and explain their use to maintain acceptable IAQ
Construction Drawings
1
- Accurately read blueprints and specifications including symbols, schedules, details and proficiency locate specific information
Related Instruction Content
Training Provider(s):
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NCCER Core
45
This course is designed to provide students with knowledge and skills related to multi-craft technicians in a variety of fields. Information in this course is based on the National Center for Construction Education and Research (NCCER) core curriculum and prepares students to test for the NCCER credential.
Basic Electricity
45
This course provides an introduction to direct current (DC) and alternating current (AC) electrical theory. Topics include atomic theory, magnetism, properties of conductors and insulators, and characteristics of series, parallel, and series-parallel circuits. Inductors and capacitors are introduced and their effects on DC and AC circuits are examined. Students are prepared to analyze complex circuits, solve for unknown circuit variables and use basic electronic test equipment. This course also provides hands on laboratory exercises to analyze, construct, test, and troubleshoot electrical circuits. Emphasis is placed on the use of a scientific calculator, the operation of common test equipment, and the physical wiring of electrical circuits.
Construction Basics
45
This course introduces students to the opportunities in and requirements of the construction industry. Topics include economic outlook for construction, employment outlook, job opportunities, training, apprenticeship, entrepreneurship, construction tools, materials, and equipment, job safety and OSHA standards. Upon course completion, students should be able to identify the job market, types of training, knowledge of apprenticeship opportunities, construction tools, materials, equipment, and safety procedures.
Construction Basics Lab
45
This course provides practical and safe application of hand, portable power, stationary and pneumatic tools, use of building materials, fasteners and adhesives, and job site safety. Emphasis is placed on the safe use of hand, power, and pneumatic tools, proper selection of lumber, plywood, byproducts, nails, bolts, screws, adhesives, fasteners, construction materials, and job safety. Upon course completion, the student should be able to identify hand, power, stationary, and pneumatic tools and demonstrate their safe use; identify and properly select wood and non- wood building products, and properly use nails, fasteners and adhesives.
Floors, Walls & Site Prep
45
This course introduces the student to site preparation, floor and wall layout, and construction. Topics include methods of site preparation, measurement and leveling tools, framing, layouts, and components of wall and floor framing to include beams, girders, floor joists, sub-flooring, partitions, bracing, headers, sills, doors and corners. Upon course completion, students will be able to identify various types of wall and floor framing systems and their components, identify building lines, set backs, and demonstrate a working knowledge of leveling applications.
Principles of Refrigeration
45
This course emphasizes the fundamental principles for air conditioning and refrigeration. Instruction is provided in the theory and principles of refrigeration and heat transfer, HVAC/R system components, common, and specialty tools for HVAC/R, and application of the concepts of basic compression refrigeration. Upon completion, students should identify system components and understand their functions, identify and use common and specialty HVAC/R tools, and maintain components of a basic compression refrigeration system.
HVACR Service Procedures
45
This course covers system performance checks and refrigerant cycle diagnosis. Emphasis is placed on the use of refrigerant recovery/recycle units, industry codes, refrigerant coils and correct methods of charging and recovering refrigerants. Upon completion, students should be able to properly recover/recycle refrigerants and demonstrate safe, correct service procedures which comply with the no-venting laws.
HVACR Electric Circuits
45
This course introduces the student to electrical circuits and diagrams. Electrical symbols and basic wiring diagrams are constructed in this course. Upon completion, students should understand standard wiring diagrams and symbols and be able to construct various types of electrical circuits.
Residential Wiring Methods
45
This course is a study of residential wiring practices and methods, the NEC requirements and residential blueprint interpretations.