MCCCD Program Description

Construction Trades: H.V.A.C.r

Course: CON170

First Term: 2024 Fall

Lec + Lab 9.0 Credit(s) 12.0 Period(s) 12.0 Load
Subject Type: Occupational
Load Formula: T- Lab Load

Description: Introduction to major components and functions of residential heating, ventilation, air conditioning, and refrigeration (H.V.A.C.r) systems, including heat flow and basic electrical concepts. Introduction to installation of residential heating, ventilation, air conditioning, and refrigeration (H.V.A.C.r) systems. Includes startup and verification of proper equipment operation. Includes installations, diagnostics, preventative and predictive maintenance, and customer service. Introduction to troubleshooting the components of residential heating, ventilation, air conditioning, and refrigeration (H.V.A.C.r) systems to ensure proper equipment operation. Examines federal laws, standards, and procedures for the preparation to complete the certification for the Environmental Protection Agency (EPA) SECTION 608.

MCCCD Official Course Competencies
1. Practice Occupational Safety and Health Administration (OSHA) standards in daily work. (I-XX) 2. Demonstrate industry-standard professionalism that includes safety, dress, attendance communication, and customer service. (I-XI) 3. Document work performed according to industry standards. (I-XX) 4. Interpret technical documentation. (I, III, V) 5. Select the appropriate hand and/or power tool for a given task according to industry standards. (I, IV, X, XI) 6. Demonstrate knowledge of the Federal Clean Air Act and the United States Environmental Protection Agency (EPA) related to the installation, venting, and recovery of all refrigerants. (I, VI, IX, XI) 7. Diagnose system faults in residential H.V.A.C.r equipment. (I, V-XXI) 8. Identify each component of the refrigeration system and its related function. (I, VI, VII, VIII, IX, XVI, XVII) 9. Explain the concept of heat transfer. (I, VII, XVI, XVII, XIX) 10. Describe basic psychrometric concepts, including the interactions among temperature, humidity, and elevation. (I, IX, XVI, XVII) 11. Apply basic principles of refrigeration to installation and/or service. (I, X, XI, XVI, XVII, XX) 12. Install refrigerant, gas, and condensate drain piping on an H.V.A.C.r system. (I, IX) 13. Perform installation and start-up. (I, X) 14. Install packaged H.V.A.C.r, split H.V.A.C.r, and air distribution systems. (I, X) 15.Test resistive and inductive loads, including motors, refrigerant circuit operating conditions, and related devices. (I, XI) 16. Install low-voltage power and high-voltage power residential controls for H.V.A.C.r systems. (I, XV) 17. Troubleshoot low-voltage power sources, high-voltage power sources, and other control circuits. (I, XV, XX) 18. Troubleshoot air conditioner and heat pump systems. (I, XVIII, XX) 19. Replace H.V.A.C.r components, including thermostats, compressors, and valves. (I, XVIII) 20. Troubleshoot gas and electric heating systems and auxiliary back up. (I, XIX)
MCCCD Official Course Competencies must be coordinated with the content outline so that each major point in the outline serves one or more competencies. MCCCD faculty retains authority in determining the pedagogical approach, methodology, content sequencing, and assessment metrics for student work. Please see individual course syllabi for additional information, including specific course requirements.

MCCCD Official Course Outline
I. Safety A. Codes B. Types of hazardous materials C. Handling and disposal of hazardous materials D. Personal protective equipment requirements II. Professionalism A. Customer service B. Self-presentation C. Conduct D. Communication III. H.V.A.C.r terminology IV. H.V.A.C.r tools A. General B. Installation C. Diagnostic V. Interpretation of technical documentation VI. Components of the refrigeration cycle A. Evaporator B. Condenser C. Metering devices D. Compressor VII. Heat transfer and thermodynamics A. Temperature B. Conduction, convection, and radiation C. Air/water movement VIII. Basic electrical concepts A. Alternating current/direct current (AC/DC) B. Voltage C. Current D. Resistance IX. Refrigeration concepts A. Approved refrigerant types B. Refrigeration systems C. Components D. Pressure, phase, and fluids E. Charging F. Recovery/recycle/reclaiming G. Evacuation H. Psychrometric chart 1. Temperature 2. Humidity 3. Elevation X. Residential installations A. Soldering B. Brazing C. Placement D. Leveling E. Connections and interconnections 1. Electrical 2. Condensate 3. Refrigerant connections 4. Ducting/ductless systems 5. Fuel gas connections XI. Servicing residential systems A. Diagnostics and repair 1. Environmental factors 2. Measuring methods 3. Cost analysis 4. Refrigeration cycle 5. Electrical operation 6. Airflow and forced convection a. Speed and velocity b. Volume 7. Proper operating conditions 8. Work, energy and efficiency B. Predictive and preventative maintenance XII. High voltage power sources A. Transformers and service panels B. Feeder and branch circuits C. Fuses and circuit breakers XIII. Low voltage power sources A. Transformers B. Fuses and circuit breakers C. Primary and secondary controls XIV. Resistive and inductive loads A. Resistive loads 1. heat strips 2. crankcase 3. heaters B. Inductive loads 1. Transformers 2. Motors 3. Relays 4. Contactors 5. Capacitors XV. Refrigerant elements A. Primary system components B. Refrigeration cycle analysis C. Superheat and subcooling D. Air and water flow XVI. Air conditioners and heat pumps A. Cooling cycle B. Heating cycle C. Heat pump defrost cycle XVII. Compressors and heat pump reversing valves A. Types B. Diagnosis of mechanical and electrical problems C. Replacement XVIII. Thermostats A. Types B. Factory and field wiring C. Other temperature controls XIX. Gas and electric furnace appliance/unit A. Combustion process B. System components C. Combustion efficiency test procedures XX. Service calls A. Methodology of troubleshooting B. Customer relations C. Service documentation

MCCCD Governing Board Approval Date: February 27, 2024

All information published is subject to change without notice. Every effort has been made to ensure the accuracy of information presented, but based on the dynamic nature of the curricular process, course and program information is subject to change in order to reflect the most current information available.