Course Descriptions



Air Conditioning, Refrigeration, and Environmental Control Technology (AIRE)

100 Basic Refrigeration Theory - 4 hours lecture, 4 units (Grade Only)

Corequisite: Air Conditioning, Refrigeration, and Environmental Control Technology 103. This course is a study of elementary thermodynamics as applied to heating, air conditioning and refrigeration (HVACR) systems, including molecular theory of temperature, pressure and heat. Emphasis is placed on the vapor-compression refrigeration cycle, HVACR system components, their thermal performance and applications. Discussions include historical to modern systems, with emphasis placed on new energy-saving technologies and methods being employed in this dynamic industry. This course is intended for students who are majoring in Air Conditioning, Heating and Solar Energy. (FT) AA/AS; CSU.

103 Basic Refrigeration Lab - 6 hours lab, 2 units (Grade Only)

Corequisite: Air Conditioning, Refrigeration, and Environmental Control Technology 100. This course is a hands-on, project-oriented study of the tools, materials, methods and equipment used in Heating, Ventilation, Air Conditioning and Refrigeration (HVACR). Emphasis is placed on projects related to heat transfer and the refrigeration cycle, system evacuation, charging, recovery and leak testing as they apply to normal HVACR industry activities. This course is intended for students who are majoring in Air Conditioning, Heating and Solar Energy. (FT) AA/AS; CSU.

122 Construction Drawings and Estimating - 3 hours lecture, 3 units (Grade Only)

Corequisite: Air Conditioning, Refrigeration, And Environmental Control Technology 123 with a grade of "C" or better, or equivalent.
Advisory: Mathematics 38 with a grade of "C" or better, or equivalent or Assessment Skill Level M30. This course is a study of the generation, reading and San Diego City College • 2013-2014 277 Engineering Technology AA/AS = Associate Degree Applicable CSU = California State University Applicable UC = University of California Applicable interpretation of construction drawings from initial concepts to actual building construction. Emphasis is placed on how the Heating, Ventilation and Air Conditioning (HVAC) systems are integrated into the structure by architects, engineers and ultimately the construction contractors and subcontractors. Course content includes architectural, mechanical, electrical and plumbing drawings, and also covers job planning, sources and use of pricing guidelines, municipal, county, state and federal codes, energy codes and standards, specifications and computer software programs used in the development of construction drawings and used for construction estimating. This course is intended for students who are majoring in Air Conditioning, Heating and Solar Energy. (FT) AA/AS; CSU.

123 Construction Drawings and Estimating Lab - 3 hours lab, 1 unit (Grade Only)

Corequisite: Air Conditioning, Refrigeration, And Environmental Control Technology 122 with a grade of “C” or better, or equivalent. Advisory: Mathematics 38 with a grade of “C” or better, or equivalent or Assessment Skill Level M30. This laboratory course provides practice in the reading of construction drawings and plans for structures and building components. Students use pricing guides for Heating, Ventilating and Air Conditioning (HVAC), computer-aided drafting software, engineering and architectural scales, and elementary sketching and drawing techniques to complete laboratory projects. This course is intended for students who are majoring in Air Conditioning, Heating and Solar Energy. AA/AS; CSU.

124 Control Systems Theory - 3 hours lecture, 3 units (Grade Only)

Corequisite: Air Conditioning, Refrigeration, and Environmental Control Technology 125.
Advisory: Completion of or concurrent enrollment in: Air Conditioning, Refrigeration, and Environmental Control Technology 100 and 103, each with a grade of "C" or better, or equivalent.
This course is a study of electricity and electrical controls for Heating, Ventilation and Air Conditioning and refrigeration (HVACR). Subjects include Ohm’s Law and Kirchoff’s Law for direct current (DC) and alternating current (AC) circuits, series and parallel power and control circuits, electrical schematic and wiring diagrams, and motor theory. Emphasis is placed on the operational theory and application of components commonly encountered in modern HVACR systems, electrical control and circuits, compressor, pump and fan circuits. This course is intended for students who are majoring in Air Conditioning, Heating and Solar Energy. (FT) AA/AS; CSU.

125 Control Systems Lab - 6 hours lab, 2 units (Grade Only)

Corequisite: Air Conditioning, Refrigeration, and Environmental Control Technology 124.
Advisory: Completion of or concurrent enrollment in: Air Conditioning, Refrigeration, and Environmental Control Technology 100 and 103, each with a grade of "C" or better, or equivalent.
This course utilizes a series of laboratory projects that provide hands-on student training with test and measuring tools, benchtop trainers and actual heating, ventilation, air conditioning and refrigeration (HVACR) systems. Projects include use of digital-voltohm- meters (DVOM), in-circuit and clamp-on ammeters, meggers, etc. in analyzing HVACR power and control circuits. Logical troubleshooting and diagnosis methods are demonstrated and utilized with computer simulation software and in the laboratory projects. This course is intended for students pursuing certificates or an associate degree in Air Conditioning, Refrigeration and Environmental Control Technology. (FT) AA/AS; CSU.

126 Fluid Flow Dynamics - 3 hours lecture, 3 units (Grade Only)

Corequisite: Completion of or concurrent enrollment in Air Conditioning, Refrigeration, and Environment Control Technology 127 with a grade of "C" or better, or equivalent.
Limitation on Enrollment: This course is not open to students with credit for Environmental Control Technology 126.
Fundamental laws governing air flow in ducting systems; fans, system curves, fan curves, common methods of air distribution; friction losses in ducts; use of system calculators; laws of hydronics; pipe sizing, pump sizing; pressure losses in hydronic systems; air psychrometries; water treatment and air filtration fundamentals. AA/AS; CSU.

127 Fluid Flow Dynamics Lab - 6 hours lab, 2 units (Grade Only)

Corequisite: Air Conditioning, Refrigeration, and Environment Control Technology 126.
Limitation on Enrollment: This course is not open to students with credit for Environmental Control Technology 127.
This laboratory course provides practice in fluid measuring methods and instrumentation. Emphasis is placed on working with instruments such as pitot tube devices and velometers to illustrate the interaction of fluid systems curves. Course content also includes air psychometries, air and hydronic system balancing and measurement of sound. AA/AS; CSU.

128 Comfort Heating Systems Theory - 4 hours lecture, 4 units (Grade Only)

Corequisite: Air Conditioning, Refrigeration, and Environmental Control Technology 129.
Limitation on Enrollment: This course is not open to students with previous credit for Air Conditioning,Refrigeration and Environmental ControlTechnology 112.
This course involves a series of demonstrations and lab projects to provide identification, knowledge and understanding of the safe operation of comfort heating equipment and systems. Readings from combustion analyzers are used to evaluate the combustion process of various fuels, their heat output, analysis of bi-products, equipment capacity and combustion efficiency. The course includes design, maintenance training and practice on common types of comfort heating systems, including forced-air gas-fired and oil-fired furnaces, boilers, furnaces, heatpump fancoils, hydronic heating and integrated conventional and alternative energy systems. This course is intended for students who are majoring in Air Conditioning, Heating and Solar Energy. (FT) AA/AS; CSU.

129 Comfort Heating Systems Lab - 6 hours lab, 2 units (Grade Only)

Corequisite: Air Conditioning, Refrigeration, and Environmental Control Technology 128. Limitation on Enrollment: This course is not open to students with previous credit for Air Conditioning, Refrigeration, and Environmental Control Technology 113. This course involves a series of demonstrations and lab projects to provide identification, knowledge and understanding of the safe operation of comfort heating equipment and systems. Readings from combustion analyzers are used to evaluate the combustion process of various fuels, their heat output, analysis of bi-products, equipment capacity and combustion efficiency. The course includes design, maintenance training and practice on common types of comfort heating systems, including forced-air gas-fired and oil-fired furnaces, boilers, furnaces, heatpump fancoils, hydronic heating and integrated conventional and alternative energy systems. This course is intended for students pursuing certificates or an associate degree in Air Conditioning, Refrigeration and Environmental Control Technology. (FT) AA/AS; CSU.

132 Advanced Refrigeration Theory - 3 hours lecture, 3 units (Grade Only)

Corequisite: Air Conditioning, Refrigeration, and Environmental Control Technology 133.
Advisory: Air Conditioning, Refrigeration, and Environmental Control Technology 100 and 103, each with a grade of "C" or better, or equivalent.
This course is a comprehensive thermodynamic analysis of air conditioning and refrigeration systems using Mollier diagrams and mathematical system process calculations. Topics include heat exchanger design, condensers, evaporators, cooling towers, evaporative condensers, metering devices, compressor design and performance, system piping and lubrication. Studies include multi-evaporator vapor-compression, cascade, cryogenic, and absorption systems. This course is intended for students who are majoring in Air Conditioning, Heating and Solar Energy. (FT) AA/AS; CSU.

133 Advanced Refrigeration Lab - 6 hours lab, 2 units (Grade Only)

Corequisite: Air Conditioning, Refrigeration, and Environmental Control Technology 132.
Advisory: Air Conditioning, Refrigeration, and Environmental Control Technology 100 and 103, each with a grade of "C" or better, or equivalent.
This course is a rigorous series of projects in the functioning and service of heating, ventilating, air conditioning and refrigeration (HVACR) systems. Projects include taking pressure, temperature and airflow readings on normal and malfunctioning systems, thermodynamic analyses using Mollier diagrams, troubleshooting, diagnosis and repair. Tasks involve the use of various refrigerants and secondary control devices such as pressure regulators and head pressure controls and the use of modern industrystandard tools and test equipment. This course is intended for students pursuing certificates or an associate degree in Air Conditioning, Refrigeration and Environmental Control Technology. (FT) AA/AS; CSU.

138 HVAC/Refrigeration System Design - 3 hours lecture, 3 units (Grade Only)

Limitation on Enrollment: This course is not open to students with credit for Environmental Control Technology 138.
An intensive course on the theory of design for heating, refrigeration, air conditioning, and solar energy systems. Includes building envelope heat load calculations, equipment selection criteria, system selection and optimization. Energy conservation techniques in design and hydronic system design applications are included. AA/AS; CSU.

139 HVAC/Refrigeration System Design Lab - 6 hours lab, 2 units (Grade Only)

Limitation on Enrollment: This course is not open to students with credit for Environmental Control Technology 139.
Applied design techniques for the development of complete “HVAC” refrigeration and solar designs in an occupationally similar environment. A series of design projects includes applied heat load estimation; applied psychrometries; system and equipment selection criteria; and use of design manuals, tables, and manufacturers catalogs. Applied energy conservation techniques are included. AA/AS; CSU.

144 Direct Digital Controls Theory - 4 hours lecture, 4 units (Grade Only)

Corequisite: Air Conditioning, Refrigeration, and Environmental Control Technology 145 with a grade of "C" or better, or equivalent.
Advisory: Computer Business Technology 161 and 180, each with a grade of "C" or better, or equivalent.
This course is a study of Direct Digital Control (DDC) theory: rationale, DDC system design, DDC system sensors, DDC controllers and advanced heating, ventilation and air conditioning (HVAC) controls, network architecture, Internet protocol (IP) addressing and interoperation, open and non-proprietary systems, American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE) BACnet, and the LonWorks platform. The course examines BACnet DDC hybrid control strategies using various analog and binary system actuators. Specific emphasis is placed on developing student skills using networks that are built into the AIRE Program DDC lab equipment and utilized throughout the world, including the SDCCD campuses and buildings. This course is intended for students pursuing certificates or an associate degree in Air Conditioning, Refrigeration and Environmental Control Technology. (FT) AA/AS; CSU.

145 Direct Digital Controls Lab - 6 hours lab, 2 units (Grade Only)

Corequisite: Air Conditioning, Refrigeration, and Environmental Control Technology 144 with a grade of "C" or better, or equivalent.
Advisory: Computer Business Technology 161 and 180, each with a grade of "C" or better, or equivalent.
This course applies Direct Digital Control (DDC) theory to laboratory projects: system design, American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE) BACnet DDC controller selection and integration with heating, ventilation and air conditioning (HVAC) system components, BACnet network architecture, development of graphical views and hierarchical database tree, logical BACnet program development, and construction of DDC system operator machine interface graphics. Course projects include the development of a facility graphical view and control hierarchy tree, setup of a control logic diagram using blocks, symbols and wires, and construction of an operator graphical interface. Laboratory training simulations are compared to actual DDC HVAC control strategies used by the San Diego Community College District’s BACnet DDC system, and throughout the world. This course is intended for students who are majoring in Air Conditioning, Heating and Solar Energy. (FT) AA/AS; CSU.

160 Solar Energy Utilization Theory - 3 hours lecture, 3 units (Grade Only)

Corequisite: Air Conditioning, Refrigeration, and Environmental Control Technology 161.
Advisory: Air Conditioning, Refrigeration, and Environmental Control Technology 100 and 124, each with a grade of "C" or better, or equivalent.
This course studies solar-thermal and photovoltaic (PV) systems, siting considerations, types of collectors and systems, operating efficiencies, building codes and solar rights. Topics include: passive and active solar thermal systems; residential and commercial systems for water heating, space heating, space cooling, process heating, swimming pool heating, and hybrid systems. Study of photovoltaic technologies includes the solar cell, independent and grid-connected systems and electric bill reduction strategies. This course is intended for students who are majoring in Air Conditioning, Heating and Solar Energy. (FT) AA/AS; CSU.

161 Solar Energy Utilization Lab - 6 hours lab, 2 units (Grade Only)

Corequisite: Air Conditioning, Refrigeration, and Environmental Control Technology 160.
Advisory: Air Conditioning, Refrigeration, and Environmental Control Technology 100 and 125, each with a grade of "C" or better, or equivalent.
This course includes a series of solar thermal and photovoltaic (PV) laboratory projects. Solar collector and system performance data are recorded and analyzed and efficiencies calculated. Topics include collector/module azimuth and tilt, thermal open and closed loop systems, freeze protection, stagnation; stand-alone and grid-connected photovoltaic systems are studied. This course is intended for students who are majoring in Air Conditioning, Heating and Solar Energy. (FT) AA/AS; CSU.

270 Work Experience in Air Conditioning, Refrigeration, Environmental Control Technology - Hours by Arrangement (One unit of credit is earned for each 75 hours of paid employment or 60 hours of volunteer work.), 1-4 units (Grade Only)

Limitation on Enrollment: Must obtain an Add Code from Work Experience Coordinator for registration. A program of on-the-job learning experiences for students employed in a job related to their major or their educational goals. The combined maximum credit for all work experience courses from all disciplines may not exceed 16 units. AA/AS; CSU.

290 Independent Study in Air Conditioning, Refrigeration, Environmental Control Technology - Hours by Arrangement, 1-3 units (Grade Only)

Limitation on Enrollment: Must obtain an Add Code from instructor for registration. This course is not open to students with credit for Environmental Control Technology 290.
For students who wish to study special problems. This course may be taken four times with different content for a maximum of six units. AA/AS; CSU.

This discipline may offer specialized instruction in one or more of the following areas: Supervised Tutoring (044), Experimental Topics (265), Independent Study (290), Individualized Instruction (296), Service Learning (277), or Work Experience (270). Detailed course descriptions are listed on page page 120. Please refer to the class schedule and/or see the dean or department chair for availability.