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CONSTRUCTION, DESIGN & MANUFACTURING DEPARTMENT
Los Angeles Trade Technical College
C. D. M.
Refrigeration & Air Conditioning
CATALOG COURSE DESCRIPTIONS
100 AIR CONDITIONING PROJECT MANAGEMENT (3)
Lecture: 3 hours
This course provides HVAC Industry Project Manager instruction. Topics covered will include blueprint reading, Microsoft spreadsheets, Microsoft Word documents, Microsoft Project, design build criteria, estimating, change orders, request for information, GANTT Charts, scheduling, schedule of values, purchase orders, submittals, transmittals, reading of air balance reports, warranty letters and close out packages.
111 FUNDAMENTALS OF REFRIGERATION (3)
Lecture: 3 hours
The physical and thermodynamic properties of refrigerants as applied to the compression cycle of refrigeration are studied in this course. Basic orientation to the refrigeration industry is given.
113 REFRIGERATION COMPONENT CONSTRUCTION (3)
Lab: 9 hours
Instruction is given on the construction of the basic components of the refrigeration system.
114 REFRIGERATION MAINTENANCE PROCEDURES (3)
Lab: 9 hours
This course focuses on preventive maintenance and housekeeping routines including record keeping and safety procedures.
123 PIPE AND TUBE JOINING PROCESSES (3)
Recommended Preparation: REF A/C 111, 113, 114, and ECONMT 119 or 173 with a grade of "C" or better.
Lab: 9 hours
This course assesses assembly of components into operating systems using techniques employed by the industry.
124 REFRIGERATION ELECTRICAL CIRCUITS AND CONTROLS (3)
Recommended Preparation: REF A/C 111, 113, 114, and ECONMT 119 or 173 with a grade of "C" or better.
Lab: 9 hours
Students are trained in practical electrical installation for operation as well as safety.
125 REFRIGERATION SYSTEM COMPONENTS (3)
Recommended Preparation: REF A/C 111, 113, 114, and ECONMT 119 or 173 with a grade of "C" or better.
Lecture: 3 hours
Instruction is given in basic electricity and electrical components. Compression system components and their functions and inter-relationships are reviewed.
133 REFRIGERATION SERVICE PROCEDURES I (3)
Recommended Preparation: REF A/C 123, 124, 125, and ECONMT 174 with a grade of "C" or better.
Lab: 9 hours
Servicing procedures as applied to domestic and commercial refrigeration systems are studied in this course. Topics covered include check, test, and start procedures.
134 SERVICE FOR AIR CONDITIONING EQUIPMENT I (3)
Lab: 9 hours
Practical instruction is given on typical air conditioning units including heat pumps with emphasis on recommended service and diagnosis procedures.
135 AIR CONDITIONING AND REFRIGERATION (3)
Recommended Preparation: REF A/C 123, 124, 125, and ECONMT 174 with a grade of "C" or better.
Lecture: 3 hours
Basic air conditioning principles including psychometrics, heat pumps, gas heating; absorption refrigeration, industrial refrigeration, food storage, and controls are reviewed in this course.
141 APPLIED REFRIGERATION AND AIR CONDITIONING PRINCIPLES (3)
Recommended Preparation: REF A/C 123, 124, 125, and ECONMT 174 with a grade of "C" or better.
Lecture: 3 hours
This course focuses on Chemistry as applied to the HVAC and R industry. Areas covered include hydronics, heating and cooling load calculations, control wiring, introduction to the uniform mechanical code, pneumatic controls, troubleshooting approaches, and employment.
143 REFRIGERATION SERVICING PROCEDURES II (3)
Recommended Preparation: REF A/C 123, 124, 125, and ECONMT 174 with a grade of "C" or better.
Lab: 9 hours
Troubleshooting procedures in diagnosing and repairing malfunctions in refrigeration systems are studied in this course with emphasis on mechanical problems.
145 AIR CONDITIONING AND REFRIGERATION MECHANICS (3)
Recommended Preparation: REF A/C 123, 124, 125, and ECONMT 174 with a grade of "C" or better.
Lab: 9 hours
This is a study on diagnosis and repair of refrigeration, air conditioning, and gas heating systems with emphasis on the correct application of electrical theory.
159 PRINCIPLES AND PRACTICES OF ELECTRICAL CIRCUITS AND CONTROLS (4)
Lecture: 2.5 hours; Lab: 4.5 hours
This course covers Basic electricity, magnetic starters, contactors and relays. Pressure and temperature controls, millivolt and low voltage systems, modulating controls, time clocks and defrost systems are studied.
160 REFRIGERATION SYSTEM PRINCIPLES AND PRACTICES (4)
Lecture: 2.5 hours; Lab: 4.5 hours
Students learn fundamental refrigeration system principles, system components and refrigerants, basic electricity, motors and controls, and test equipment in domestic and commercial refrigeration.
161 AIR CONDITIONING SYSTEM PRINCIPLES AND PRACTICES (4)
Lecture: 2.5 hours; Lab: 4.5 hours
This is a study of human comfort, psychometrics and heat loads. Air distribution and duct sizing, air conditioning equipment, test instruments and measurements and servicing are explored.
162 PIPING PRINCIPLES AND PRACTICES (4)
Lecture: 2.5 hours; Lab: 4.5 hours
Instruction is given on refrigerant tubing and fittings, water piping and fittings, pipe sizing, soft soldering, silver brazing and schematic drawings.
164 GAS HEATING SYSTEMS (4)
Lecture: 1.5 hours; Lab: 4.5 hours
This course will develop the necessary skills needed for proper installation, servicing and troubleshooting of natural gas furnaces. Topics include principles of gas combustion, gas ignition, controls, installation and ventilation.
165 THERMAL ENERGY STORAGE AND HEAT RECOVERY (4)
Lecture: 2.5 hours; Lab: 4.5 hours
Thermal energy storage and heat recovery principles of TES and basic definitions are the focus of study in this course. Load profile and electric cost are introduced and system design including space requirements and component selection based on load profiles and costs are covered.
176 HEATING AND AIR CONDITIONING I (3)
Lecture: 3 hours
Instruction is given in heating for workers in the heating and air conditioning field. Fundamentals of fuels, venting, heat transfer and calculation, equipment selection, distribution systems, and necessary controls are studied.
177 HEATING AND AIR CONDITIONING II (3)
Lecture: 3 hours
The cooling portion of the air conditioning field for employed mechanics is explored in this course. Types of system, refrigeration cycle, heat gain and calculation, air distribution equipment, selection of controls, and sales procedures are reviewed.
187 SERVICING I (3)
Lecture: 3 hours
This course reviews servicing procedures, manufacturers' recommendations, installation and service of commercial and industrial refrigeration and air conditioning systems.
188 SERVICING II (3)
Recommended Preparation: REF A/C 187 or equivalent with a grade of "C" or better.
Lecture: 3 hours
Topics covered in this course include electrical diagrams for testing control circuits, the total electrical system and protection devices on package units, analysis of failure and compressor motor burnout cleanup procedures.
202 REFRIGERATION FUNDAMENTALS (3) CSU
Lecture: 3 hours
This course covers applied thermodynamics and laws of mechanics with laws of gases and change of state in substances and heat transfer.
203 COMPRESSION SYSTEMS OF REFRIGERATION (3) CSU
Lecture: 3 hours
Instruction is given in vapor cycle in refrigeration systems including the study of refrigerants and their behavior in the system.
204 FUNCTIONS OF COMPRESSION SYSTEM COMPONENTS (3)
Lecture: 3 hours
This course is a study of application of the Mollier Diagram to system analysis reciprocating and Centrifugal Chiller Theory and Operation. Areas covered include compressor failure, rotary, helical screw, and scroll compressors, capacity control, and use of the gauge manifold latest developments in the industry.
208 REFRIGERANT MANAGEMENT - EPA 608 CERTIFICATION (4)
Lecture: 4 hours
This course is a preparatory course for the EPA Section 608 Technician Certification Type I, II, III, and the Universal Certification. Students are trained in refrigerant management including the EPA Section 608 ruling, the Montreal Protocol, Ozone Depletion and Global Warming. Note: Certification testing is will be available at the end of the semester for an additional fee.
250 INDOOR AIR QUALITY (3)
Lecture: 3 hours
This course emphasizes on operation of systems to provide quality air to indoor environments. AQMD requirements and pending regulations are reviewed. Organizing and implementing maintenance programs that include indoor air quality assessment and air balancing HVAC systems are covered.
AIR CONDITIONING AND REFRIGERATION TECHNOLOGY
COURSE DESCRIPTIONS
161 AUTOMATIC CONTROLS PRINCIPLES AND PRACTICES (4)
Lecture: 3 hours; Lab: 3 hours
This course is a study of the fundamental principles and practices on pneumatic, and electric and electrical controls as applied to air conditioning and refrigeration. Emphasis is given on both theory and practice.
183 CONTROL THEORY AS APPLIED TO AIR CONDITIONING (3)
Lecture: 3 hours
Instruction is given on fundamentals of pneumatic, electric and electrical controls as applied to air conditioning and refrigeration.
Emphasis is given on both theory and practice.
188 SOLAR ENERGY (3)
Lecture: 3 hours
Students learn the fundamental theory and application of solar energy. Water, wind, and direct electric panel theory and application, will be discussed.