10 courses with the subject AHR, each shown exactly as we captured it from the college's catalog, with every element we hold. Where the wording looks broken, that is our reading of the catalog, not the college's text.
AHR 110Intro to Refrigeration (5 Credit Hours)5
Subject
AHR
Credits (min)
5
Credits (max)
5
Type
course
Edition
2026-2027 Gaston College Catalog and Student Handbook
Catalog
2026-2027 Gaston College Catalog and Student Handbook
None This course introduces the basic refrigeration process used in mechanical refrigeration and air conditioning systems. Topics include terminology, safety, and identification and function of components; refrigeration cycle; and tools and instrumentation used in mechanical refrigeration systems. Upon completion, students should be able to identify refrigeration systems and components, explain the refrigeration process, and use the tools and instrumentation of the trade.
AHR 111HVACR Electricity (3 Credit Hours)3
Subject
AHR
Credits (min)
3
Credits (max)
3
Type
course
Edition
2026-2027 Gaston College Catalog and Student Handbook
Catalog
2026-2027 Gaston College Catalog and Student Handbook
None This course introduces electricity as it applies to HVACR equipment. Emphasis is placed on power sources, interaction of electrical components, wiring of simple circuits, and the use of electrical test equipment. Upon completion, students should be able to demonstrate good wiring practices and the ability to read simple wiring diagrams.
AHR 112Heating Technology (4 Credit Hours)4
Subject
AHR
Credits (min)
4
Credits (max)
4
Credit unit
Hours
Type
course
Edition
2026-2027 Gaston College Catalog and Student Handbook
Catalog
2026-2027 Gaston College Catalog and Student Handbook
None This course covers the fundamentals of heating systems. Topics include safety, instrumentation, system operating, efficiency testing, electrical power, and control systems. Upon completion, students should be able to perform maintenance, service, and testing for major components of a heating system.
AHR 113Comfort Cooling (4 Credit Hours)4
Subject
AHR
Credits (min)
4
Credits (max)
4
Credit unit
Hours
Type
course
Edition
2026-2027 Gaston College Catalog and Student Handbook
Catalog
2026-2027 Gaston College Catalog and Student Handbook
None This course covers the installation procedures, system operations, and maintenance of residential and light commercial comfort cooling systems. Topics include terminology, component operation, and testing and repair of equipment used to control and produce assured comfort levels. Upon completion, students should be able to use psychrometrics, manufacturer specifications, and test instruments to determine proper system operation.
AHR 114Heat Pump Technology (4 Credit Hours)4
Subject
AHR
Credits (min)
4
Credits (max)
4
Credit unit
Hours
Type
course
Edition
2026-2027 Gaston College Catalog and Student Handbook
Catalog
2026-2027 Gaston College Catalog and Student Handbook
None This course covers the principles of air source and water source heat pumps. Emphasis is placed on safety, modes of operation, defrost systems, refrigerant charging, and system performance. Upon completion, students should be able to understand and analyze system performance and perform routine service procedures.
AHR 130HVAC Controls (3 Credit Hours)3
Subject
AHR
Credits (min)
3
Credits (max)
3
Type
course
Edition
2026-2027 Gaston College Catalog and Student Handbook
Catalog
2026-2027 Gaston College Catalog and Student Handbook
None This course covers the types of controls found in residential and commercial comfort systems. Topics include electrical and electronic controls, control schematics and diagrams, test instruments, and analysis and troubleshooting of electrical systems. Upon completion, students should be able to diagnose and repair common residential and commercial comfort system controls.
AHR 133HVAC Servicing (4 Credit Hours)4
Subject
AHR
Credits (min)
4
Credits (max)
4
Type
course
Edition
2026-2027 Gaston College Catalog and Student Handbook
Catalog
2026-2027 Gaston College Catalog and Student Handbook
Take One: AHR 112 or AHR 113 The course covers the maintenance and servicing of HVAC equipment. Topics include testing, adjusting, maintaining, and troubleshooting HVAC equipment and record keeping. Upon completion, students should be able to adjust, maintain, and service HVAC equipment
AHR 151HVAC Duct Systems I (2 Credit Hours)2
Subject
AHR
Credits (min)
2
Credits (max)
2
Type
course
Edition
2026-2027 Gaston College Catalog and Student Handbook
Catalog
2026-2027 Gaston College Catalog and Student Handbook
None This course introduces the techniques used to lay out and fabricate duct work commonly found in HVAC systems. Emphasis is places on the skills required to fabricate duct work. Upon completion, students should be able to lay out and fabricate simple duct work.
AHR 160Refrigerant Certification (1 Credit Hour)1
Subject
AHR
Credits (min)
1
Credits (max)
1
Credit unit
Hours
Type
course
Edition
2026-2027 Gaston College Catalog and Student Handbook
Catalog
2026-2027 Gaston College Catalog and Student Handbook
Take AHR 113 or AHR 120 This course covers the requirements for the EPA certification examinations. Topics include small appliances, high pressure systems, and low pressure systems. Upon completion, students should be able to demonstrate knowledge of refrigerants and be prepared for the EPA certification examinations.
AHR 210Residential Building Code (2 Credit Hours)2
Subject
AHR
Credits (min)
2
Credits (max)
2
Credit unit
Hours
Type
course
Edition
2026-2027 Gaston College Catalog and Student Handbook
Catalog
2026-2027 Gaston College Catalog and Student Handbook
None This course covers the residential building codes that are applicable to the design and installation of HVAC systems. Topics include current residential codes as applied to HVAC design, service, and installation. Upon completion, students should be able to demonstrate the correct usage of residential building codes that apply to specific areas of the HVAC trade.
