Engineering, Math & Physical Sciences Division, Room T102, (847) 543-2044
HET 110 Basic Refrigeration Systems (2-4) 4 Hours This course introduces students to basic refrigeration theory and practice in Heating, Ventilation, Air-Conditioning and Refrigeration (HVACR). The function and operational characteristics of the mechanical refrigeration system including condensers, evaporators, compressors, refrigerant metering devices, sustainable energy sources and refrigerants are covered. The use and operation of service manifolds, leak detection, system evacuation and charging, test equipment, flaring, soldering and brazing skills are covered.
Note: The student will be required to purchase basic hand tools that will be used in this and other refrigeration and air conditioning courses.
Course fee
HET 111 HVACR Electricity I (2-4) 4 Hours This course introduces students to basic AC and DC circuitry, the laws of electricity, wiring of basic HVACR equipment, and safety procedures with an emphasis placed on sustainable energy sources through the use of lectures, demonstrations, and lab experiences. The function and operational characteristics of various types of electric controls including thermostats, defrost controls, relays, and contactors are studied, along with capacitors, power distribution, motors, and protective devices. This course introduces the National Electrical Code, the use of meters, schematics, wiring diagrams, electrical troubleshooting, electrical service procedures and electrical test equipment. Note: Student will be required to purchase basic hand tools used in this and other HVACR courses.
Course fee
HET 119 HVACR Electricity II (2-4) 4 Hours This course covers intermediate AC and DC circuitry, the laws of electricity, wiring of HVACR equipment, and safety procedures with an emphasis placed on sustainable energy sources. Through lectures, demonstrations, and lab experiences, students will learn about various types of residential and commercial heating and air-conditioning, commercial refrigeration electrical service, and installation and preventive maintenance techniques. The function and operational characteristics of various types of electric controls will be covered including thermostats, defrost controls, relays, contactors, capacitors, power distribution, motors, system malfunction diagnosis, corrective procedures, and protective devices. This course also introduces part-winding starts, Wye and Delta wound transformers, programmable controllers, Electronically Commutated Motors (ECM), and Variable Frequency Drive motors (VFD). The National Electrical Code is reinforced, as well as the use of meters,
schematics, wiring diagrams, electrical troubleshooting, electrical service procedures, and electrical test equipment. Note: Students will be required to purchase basic hand tools used in this and other HVACR courses.
Prerequisite: HET 110 and HET 111 Course fee
HET 130 Heating I Residential Appliances (2-4) 4 Hours This course introduces students to the basic principles, practices, operations, service and installation of residential heating equipment through the use of lectures, demonstrations, and lab experiences. The function and operational characteristics of residential heating equipment, its wiring, and safety procedures are studied. Electric controls such as thermostats, defrost controls, relays, and contactors are studied, as well as capacitors, power distribution, motors, protective devices, system malfunction diagnosis, corrective procedures, and the refrigerants used in residential heating. This course also introduces a basic understanding of load calculations, the installation and service of residential heating appliances, ventilation requirements, and piping techniques. This course reinforces the use and operation of electrical and mechanical test equipment, wiring diagrams and schematics, service manifolds, test equipment, flaring, soldering and brazing skills. Note: Student will be required to purchase basic hand tools used in this and other HVACR courses.
Prerequisite: HET 110 and HET 111 Course fee
HET 135 Plumbing and Pipefitting I (2-2) 3 Hours This course introduces students to blueprint drawings and detail sheets; piping system standards and specifications; and trade math.
Students will be exposed to advanced blueprint reading examples, as well as motorized equipment and above ground pipe installation.
Prerequisite: HET 110 Course fee
HET 136 Plumbing and Pipefitting II (2-2) 3 Hours This course is a continuation of HET 135. The course also introduces students to pipe hangers and supports, identifying and installing valves, field routing and vessel trim, spring can supports, planning work activities and performing non-destructive examination testing.
Prerequisite: HET 135 Course fee
HET 150 Air Conditioning I Split-Systems (2-4) 4 Hours This course introduces students to the basic principles, practices, operations, service and installation of split-system residential and commercial cooling equipment, as well as industrial refrigeration equipment. The function and operational characteristics of various types of air conditioning and refrigeration equipment, the wiring of split-system equipment, and safety procedures are also studied.
Students will be exposed to topics such as electric controls such as thermostats, defrost controls, relays, and contactors, as well as capacitors, power distribution, motors, protective devices, system malfunction diagnosis, corrective procedures, and the refrigerants used in the split-system industry. This course reinforces the use and operation of electrical and mechanical test equipment, wiring diagrams and schematics, service manifolds, test equipment, flaring, soldering and brazing skills. Note: Student will be required to purchase basic hand tools used in this and other HVACR courses.
Prerequisite: HET 110 and HET 111 Course fee
Typically offered summer only
HET 170 Refrigeration I Small Appliances (2-4) 4 Hours This course introduces students to the service needs of the small refrigeration appliance industry. Through lectures, demonstrations, and lab experiences, students will learn how to service domestic refrigerators, freezers, and icemakers and to install and service water coolers, vending machines, and under-the-counter refrigeration units.
The function and operational characteristics of various types of electric controls including thermostats, defrost controls, relays, and protective devices will be studied, as well as system malfunction diagnosis, corrective procedures, and the refrigerants used in the small refrigeration appliance industry. The course also reinforces the use and operation of electrical and mechanical test equipment, wiring diagrams and schematics, service manifolds, test equipment, flaring, soldering and brazing skills. Note: Student will be required to purchase basic hand tools used in this and other HVACR courses.
Prerequisite: HET 110 and HET 111 Course fee
HET 172 Refrigeration II Commercial
Appliances (2-4) 4 Hours
This course introduces students to the basic principles, practices, operations, service, and installation of commercial refrigeration appliances. Students will learn how the product is cooled, desired temperature maintained, and proper humidity conditions controlled.
The function and operational characteristics of various types of electric controls including thermostats, defrost controls, relays, and protective devices are studied, as well as system malfunction diagnosis, corrective procedures, and the refrigerants used in the commercial refrigeration appliance industry. This course also covers a basic understanding of commercial refrigeration appliances, multiple systems, load calculations of commercial refrigeration appliances, system accessories, and piping techniques. This course reinforces the use and operation of electrical and mechanical test equipment, wiring diagrams and schematics, service manifolds, test equipment, flaring, soldering and brazing skills. Note: Student will be required to purchase basic hand tools used in this and other HVACR courses.
Prerequisite: HET 110 and HET 111 Course fee
HET 190 EPA Certification Preparation (1-2) 2 Hours This course introduces students to basic refrigeration, theory, and practice of the EPA mandated Section 608 Refrigeration Certification exam. The function and operational characteristics of the mechanical refrigeration system including condensers, evaporators, compressors, refrigerant metering devices, and sustainable energy sources refrigerants are covered, as well as material pertinent for students to pass the EPA exam. This course also introduces ozone depletion, the Clean Air Act, the Montreal Protocol, CFC and HCFC refrigerant replacements, recovery cylinders, shipping and transportation of refrigerants, system operational pressures, substitute refrigerant replacement, recharging techniques, refrigerant recovery and reclaiming, and basic system troubleshooting. This course reinforces the use and operation of service manifolds, leak detection, test equipment, flaring, soldering and brazing skills. Note: The student will be required to purchase basic hand tools that will be used in this and other refrigeration and air conditioning courses.
Corequisite: HET 110 or Consent of Instructor Course fee
HET 191 HVACR Load Calculation (2-4) 4 Hours This course introduces students to the standards for producing HVACR equipment sizing load calculations. The course details proper procedure required to complete a residential or commercial load calculation performed in accordance with the Air-Conditioning Contractors of America (ACCA) as required by national building
codes and by most state and local jurisdictions. Residential HVAC appliances, commercial HVAC appliances, and commercial refrigeration appliances and their associated sub-systems are included. Note: Student will be required to purchase basic hand tools used in this and other HVACR courses.
Prerequisite: HET 110 and HET 111 Course fee
HET 192 HVACR Engineering Tech Practicum (0-15) 1 Hour This course is a supervised work experience in the HET program. It incorporates on-the-job training in the greater Lake County area and provides students with an opportunity to demonstrate acquired skills and knowledge, as well as continue their development as
professionals. Included will be group seminar sessions with other students and regular meetings with a CLC instructor and HVACR supervisor.
Prerequisite: HET 110 and HET 111 Course fee
HET 193 Recertification Preparation (.5-0) 0.5 Hour This course is designed for students whose certification has expired or for students who need to re-sit for the EPA Technician
Certification Exam or the Industry Competency Exam. This course prepares students with a review of pertinent material prior to the administration of the exams.
Prerequisite: HET 110 and HET 111 or consent of instructor.
Course fee
HET 194 NATE Certification Preparation (2-0) 2 Hours This course prepares students to sit for the North American
Technician Excellence (NATE) HVACR Exams. All pertinent material prior to the administration of the exams is reviewed.
Prerequisite: Consent of Instructor Course fee
HET 195 Chicago Stationary Engineer Exam
Preparation (1-0) 1 Hour
This course prepares students to sit for the Chicago Stationary Engineer Exam. Low pressure steam boilers and other pertinent material will be reviewed to help students prepare for the exam.
Corequisite: HET 110 and HET 119 or consent of instructor.
Course fee
HET 219 HVACR Electricity III (2-4) 4 Hours This course covers advanced AC and DC circuitry, the laws of electricity, wiring of HVACR equipment, and safety procedures with an emphasis placed on sustainable energy sources. Through lectures, demonstrations, and lab experiences, students will learn about various types of residential and commercial heating and air-conditioning, commercial refrigeration and electrical service, installation, preventive maintenance techniques, and direct digital controls. The operational characteristics of various types of electric controls including
thermostats, defrost controls, relays, and contactors will be covered, as well as capacitors, power distribution, motors, system malfunction diagnosis, corrective procedures, and protective devices. Students will be introduced to part-winding start, Wye and Delta wound
transformers, programmable controllers, Electronically Commutated motors (ECM), Variable Frequency Drive motors (VFD), National Electrical Code, the use of meters, schematics, wiring diagrams, electrical troubleshooting, electrical service procedures, and electrical test equipment. Note: Student will be required to purchase basic hand tools used in this and other HVACR courses.
Prerequisite: HET 119 AND MTH 114 or higher or appropriate score on Math Placement test or Math ACT score of 17 or higher;
AND minimum APT score of 122 OR minimum CELSA score of 50;
or College Reading and Writing Readiness; OR Consent of Instructor
HET 230 Air Movement and Ventilation (2-4) 4 Hours This course covers intermediate principles, practices, operations, and service of commercial HVAC equipment through the use of lectures, demonstrations, and lab experiences. The function and operational characteristics of various types of residential and commercial HVAC equipment, wiring, and safety procedures are studied, as well as proper methods and techniques involved in the design, sizing and balancing of complete ventilation systems. Electric controls including thermostats, sail switches, relays, contactors, flow switches, power distribution, motors, protective devices, system malfunction diagnosis, corrective procedures, and various fan systems used in the residential and commercial HVAC industry are covered. Air mixing properties, equipment servicing, a basic understanding of load calculations, ducting, fan laws, Indoor Air Quality (IAQ), and piping techniques for residential and commercial HVAC equipment are introduced. This course reinforces ventilation requirements, the use and operation of electrical and mechanical test equipment, wiring diagrams and schematics, service manifolds, test equipment, flaring, soldering and brazing skills. Note: Student will be required to purchase basic hand tools used in this and other HVACR courses.
Prerequisite: HET 119 AND MTH 114 or higher or appropriate score on Math Placement test or Math ACT score of 17 or higher;
AND minimum APT score of 122 OR minimum CELSA score of 50;
or College Reading and Writing Readiness; OR Consent of Instructor Course fee
HET 231 Heating II Hydronic Heating Systems (2-4) 4 Hours This course introduces students to the basic principles, practices, operations, service and installation of residential and light
commercial boilers through the use of lectures, demonstrations, and lab experiences. The function and operational characteristics of various types of residential and light commercial boilers, their wiring, and safety procedures are studied. Electric controls including thermostats, relays, and contactors are studied, as well as capacitors, power distribution, motors, protective devices, system malfunction diagnosis, corrective procedures, and residential and light
commercial boilers. A basic understanding of load calculations and the installation and service of residential and light commercial boilers will be covered, as well as the operation, layout, selection, troubleshooting, venting requirements, and piping techniques. This course reinforces the use and operation of electrical and mechanical test equipment, wiring diagrams and schematics, service manifolds, test equipment, flaring, soldering and brazing skills. Note: Student will be required to purchase basic hand tools used in this and other HVACR courses.
Prerequisite: MTH 114 or higher or appropriate score on Math Placement test or Math ACT score of 17 or higher; AND minimum APT score of 122 or minimum CELSA score of 50, or College Reading and Writing Readiness; OR Consent of Instructor Course fee
HET 250 Air Conditioning II Commercial
HVAC Appliances (2-4) 4 Hours
This course covers intermediate principles, practices, operations, service and installation of commercial HVAC equipment through lectures, demonstrations, and lab experiences conducted on commercial HVAC equipment. The function and operational characteristics of various types of commercial HVAC equipment, its wiring, and safety procedures are studied. Electric controls including thermostats, defrost controls, relays, and contactors are studied, as well as capacitors, power distribution, motors, protective devices, system malfunction diagnosis, corrective procedures, and the refrigerants used in the commercial HVAC industry. This course also introduces hydronic heating, air mixing properties, installation and
service, a basic understanding of load calculations, ducting, fan laws, and piping techniques for commercial HVAC equipment. This course also reinforces ventilation requirements, the use and operation of electrical and mechanical test equipment, wiring diagrams and schematics, service manifolds, test equipment, flaring, soldering and brazing skills. Note: Student will be required to purchase basic hand tools used in this and other HVACR courses.
Prerequisite: HET 150 AND MTH 114 or higher or appropriate score on Math Placement test or Math ACT score of 17 or higher;
AND minimum APT score of 122 or minimum CELSA score of 50, or College Reading and Writing Readiness; OR Consent of Instructor Course fee
HET 252 Air Conditioning III Installation
& Service (2-4) 4 Hours
This course covers various types of residential heating and air-conditioning service techniques and installation procedures, including equipment selection, layout, duct fabrication, piping techniques, troubleshooting, codes, preventive maintenance, multiple systems, and system accessories. Students will learn the techniques of the service and installation needs of the residential heating and air-conditioning industry through lectures, demonstrations, and lab experiences. The function and operational characteristics of various types of residential heating and air-conditioning equipment, its wiring, and safety procedures are studied. Electric controls including thermostats, defrost controls, relays, and contactors are studied, as well as capacitors, power distribution, motors, protective devices, system malfunction diagnosis, corrective procedures, and the refrigerants used in the residential heating and air-conditioning industry. Equipment selection, layout, duct fabrication,
troubleshooting, codes, preventive maintenance, system balancing, component capacity, multiple systems, system accessories codes, and preventive maintenance concerning residential heating and air-conditioning appliances are also covered. This course reinforces load calculations, ventilation requirements, piping techniques, the use and operation of electrical and mechanical test equipment, wiring diagrams and schematics, service manifolds, test equipment, flaring, and soldering and brazing skills. Note: Student will be required to purchase basic hand tools used in this and other HVACR courses.
Prerequisite: MTH 114 or higher or appropriate score on Math Placement test or Math ACT score of 17 or higher; AND minimum APT score of 122 or minimum CELSA score of 50, or College Reading and Writing Readiness; OR Consent of Instructor Course fee
HET 272 Refrigeration III Commercial
Appliance Installation (2-4) 4 Hours This course covers various types of commercial refrigeration service techniques and installation procedures, such as piping techniques, codes, preventive maintenance, multiple systems, and system accessories. The function and operational characteristics of various types of electric controls including thermostats, defrost controls, relays, and protective devices are studied, as well as system malfunction diagnosis, corrective procedures, and the refrigerants used in the commercial refrigeration appliance industry. This course reinforces load calculations, the use and operation of electrical and mechanical test equipment, wiring diagrams and schematics, service manifolds, test equipment, flaring, and soldering and brazing skills.
Note: Student will be required to purchase basic hand tools used in this and other HVACR courses.
Prerequisite: HET 172 AND MTH 114 or higher or appropriate score on Math Placement test or Math ACT score of 17 or higher;
AND minimum APT score of 122 or minimum CELSA score of 50, or College Reading and Writing Readiness; OR Consent of Instructor Course fee
HET 273 Direct Digital Controls (3-4) 5 Hours This course covers basic commercial control principles and offers students experiences and practice in the selection, installation, operation, and servicing of pneumatic and electronic automation control systems and components used in commercial buildings.
Special emphasis will be placed on direct digital control systems (DDC) including troubleshooting, maintenance, and retrofitting.
Students successfully completing this course will be eligible to sit for the Air-Conditioning and Refrigeration Institute (ARI) Industry Competency Exam in Light Commercial Air Conditioning and Heating.
Prerequisite: HET 119 AND MTH 114 or higher or appropriate score on Math Placement test or Math ACT score of 17 or higher;
AND minimum APT score of 122 OR minimum CELSA score of 50;
or College Reading and Writing Readiness; OR Consent of Instructor HET 290 Building Insulation (2-4) 4 Hours This course covers heat flow, building science, building envelope, construction practices, material costs, moisture concerns, proper insulation techniques, and commercial and residential HVAC systems including equipment selection, layout, piping techniques, troubleshooting, codes, preventive maintenance, multiple systems, and system accessories. Students will also learn about building and piping insulating, and residential and commercial insulation codes.
Note: Student will be required to purchase basic hand tools used in this and other HVACR courses.
Prerequisite: HET 230 AND MTH 114 or higher or appropriate score on Math Placement test or Math ACT score of 17 or higher;
AND minimum APT score of 122 or minimum CELSA score of 50;
or College Reading and Writing Readiness; OR Consent of Instructor Course fee
HET 291 Energy Auditing (2-4) 4 Hours
This course covers building energy auditing and associated heating and air-conditioning equipment. The concepts of heat flow, energy audit software, building science, building envelope, construction
This course covers building energy auditing and associated heating and air-conditioning equipment. The concepts of heat flow, energy audit software, building science, building envelope, construction