Heating and air-conditioning systems control the temperature, humidity, and the total air quality in residential and commercial buildings. Refrigeration makes it possible to store and transport food, medicine, and other perishable items. Heating, air-conditioning, and refrigeration technicians install, maintain, and repair such systems. Salina Tech HVAC students work on a variety of new and old furnaces, air conditioners, heat pumps, reach-in and walk-in coolers, ice machines and sheet metal equipment. Diagnosing problems, controlling computerized systems, repairing and charging units, and building duct work are among some of the areas covered in the shop and at customer work sites. Over 14 years of knowledge and experience from our instructor readies graduates in nine months to work in residential or commercial settings earning competitive wages.
HVAC is open to high school juniors and seniors who qualify and postsecondary students.
High school students have the option of renting tools from Salina Tech or purchasing their own. Tools and uniforms are purchased from vendors. Only a limited number of tool kits are available. Enrollment does not guarantee availability of rental tools.
Career Opportunities: Commercial and Domestic, Service Technician, Service Manager, Business Owner
| HVAC Certificate | ||||
| First Semester | Credits | Second Semester | Credits | |
| HVA 105 Basic Fundamentals & Cycles of Refrigeration | 11 | HVA 115 Domestic & Commercial Refrigeration | 11 | |
| HVA 110 Basic Electricity & Electrical Components | 11 | HVA 125 Summer & Winter Air Conditioning | 11 | |
| TOTAL CREDITS: | 22 | TOTAL CREDITS: | 22 | |
| TOTAL CERTIFICATE CREDITS: | 44 | |||
Associate of Applied Science Degree: 62 Credits. To complete the Associate of Applied Science Degree, select 15 more credits from the General Education requirements found in the Degree and Certification Information section plus 3 credits from other technical education courses. Visit with your instructor or the Director of Student Services for possible options.
HVA 105 Basic Fundamentals and Cycles of Refrigeration, 11 credits.
This course covers the theory and operation of the basic refrigeration cycle, refrigerant metering devices, including capillary tubes, thermostatic expansion, and automatic expansion valves, basic sheet metal and math.
HVA 110 Basic Electricity and Electrical Components, 11 credits.
The course covers theory, operation, and construction of controls and circuits using capacitors, relays, switches, and control devices. Series and parallel circuits, schematic diagram reading, use of meters and electrical measuring devices, system check out procedures, and volt meter and Ohm meter troubleshooting methods are included.
HVA 115 Domestic and Commercial Refrigeration, 11 credits. (Prerequisite: HVA 105)
Theory, operation and construction of various types of refrigerators, freezers, icemakers, commercial walk-in and reach-in refrigerators and freezers are covered. Complete service analysis on all types of systems, components wiring analysis by use of meters, schematics, and systematic troubleshooting and repair procedure is taught.
HVA 125 Summer and Winter Air Conditioning, 11 credits. (Prerequisite: HVA 110)
The course includes theory, operation, and repair of gas and electrical furnaces. Instruction includes troubleshooting, system analysis, and repair of window and central air conditioners, compressor identification and replacement, control components, fan motors, various types of compressors, proper cleaning, charging and maintenance procedures, methods and sources for repairs, parts and source alternatives.
