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Heating, Air Conditioning and Refrigeration Technician

The Heating, Air Conditioning and Refrigeration Technician program is recognized by the Air Conditioning Contractors of America, St.
Louis Chapter, and the U.S. Department of Labor, Office of Apprenticeship, as a school qualified to teach the related instruction for
their registered apprenticeship programs.

American Trade School’s  HVAC/R program consists of six consecutive ten week terms for a total of sixty weeks (14 months) in length.  

Classes meet Monday through Thursday from 8:30am – 1:00pm or 6:00 – 10:30pm.
ELECTRICITY:
10 weeks – 12 Quarter Credit Hours

Electricity is found in every unit with which the HVAC/R servicer/installer will come in contact, and is a fundamental concept that
must be understood thoroughly, even for entry-level positions.  This term provides electrical theory and hands-on lab projects as
applied in the HVAC/R industry. The focus is on safety, hand-tools, energy sources, meter use, circuits, ohms law, magnetic theory,
transformers, single and three-phase electricity, wiring diagrams and troubleshooting.

INTRODUCTION TO REFRIGERATION:
10 weeks – 12 Quarter Credit Hours

The refrigeration cycle and its components, which are the backbone of all air conditioning and refrigeration systems, are taught
during this term.  The theory and hands-on lab projects of refrigeration as it applies in the HVAC/R industry will be covered
thoroughly.  Focus is on safety, hand-tools, recovery, flaring, swaging, brazing, theory of temperature, matter and energy,
refrigeration cycle, refrigerants, evacuations, charging systems, and domestic systems.  The EPA Section 608 certification test is
administered at the end of this term.

AIR CONDITIONING:
10 weeks – 12 Quarter Credit Hours

Providing a comfortable environment in hot weather is another job of the HVAC/R technician.  During this term, the focus will be on
indoor air comfort, psychrometrics, and the refrigeration cycle. Also, installation, controls, typical operating conditions,
troubleshooting, maintenance, air-to-air heat-pumps and geothermal heat-pumps will be covered.

HEATING:
10 weeks – 12 Quarter Credit Hours

People expect to be comfortable in cold weather and it is the job of the HVAC/R technician to install, maintain and service heating
equipment.  This term provides the theory and hand-on lab projects to help understand the different types of heating units, (gas, oil,
electric, heat pumps, etc.) and the functions, maintenance, and repair of each type of system.

RESIDENTIAL AND LIGHT COMMERCIAL INSTALLATION:
10 weeks – 12 Quarter Credit Hours

Many contractors specialize in installation of heating and air conditioning units. This term provides theory and hands-on lab projects
to give students the fundamental skills necessary to be an HVAC installer. The focus is on load calculations, flue pipe and gas line
sizing, sheet metal fabrication, installation and start-up procedures of HVAC equipment, as well as the operation and installation of
indoor air quality products.

BOILERS AND PIPING:
10 weeks – 12 Quarter Credit Hours

Boiler systems are a prominent heat source in almost every region in the United States. Technicians install and maintain residential
and light commercial hydronic systems. This term provides the theory and hands-on projects necessary to expose the student to
common practices in the area of boilers and piping. The focus is on the boiler’s main components, circulation pumps, system
design, terminal units, pipe sizing, sizing fittings, system friction, sizing the circulator pump, accessories, controls, preventive
maintenance, and troubleshooting.
*Financial aid is available for those who qualify.
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