Heating & Air Conditioning

Ashworth University
Norcross, Georgia, United States

Course Format: Classroom | E-learning | Virtual Class | Online | On-site | Blended | Self-paced

Course Description:

'' The Heating and Air Conditioning Course is comprised of 19 comprehensive lessons. They are easy to follow, yet challenging and stimulating at the same time. Each lesson begins with a subject matter preview and objectives, an introductory note from your instructor and a vocabulary builder of new words and terms.

Next comes the reading assignment. Practice exercises help you check and review what you’ve learned. At the end of the lesson is an open-book exam, which you may take online.

Lesson Descriptions ::
Lesson 1: Hand Tools and Fasteners. Essential HVAC hand tools—their uses and advantages; screw types and sizes; using bolts, nuts, washers, anchors, setscrews, bind rivets, and threaded rods; caring for tools.

Lesson 2: Tubing and Pipe. Types and sizes of copper tubing and fittings; cutting, bending, and flaring; swaged and flared connections; using steel and plastic pipe; pipe fittings and tools; repairing pipe leaks; how to solvent-weld rigid plastic pipe.

Lesson 3: Soldering, Brazing and Flame-Cutting. Soldering vs. brazing; selecting proper alloys and fluxes; soldering safely and correctly; air-fuel torches and gas cylinders; connecting and operating pressure regulators; air-fuel brazing and the brazing process; selecting appropriate cylinders and torches; oxyacetylene equipment for brazing and cutting metal; safety procedures.

Lesson 4: Math for Technicians. Place values; fractions; decimals; two- and three-dimensional linear measurements; Fahrenheit vs. Celsius temperature; area; volume; computing percentages easily.

Lesson 5: Thermodynamics, Temperature and Pressure. How heat is transferred; sensible, specific, and latent heat; BTU’s; saturated conditions; superheat; subcooling; measuring refrigeration and pressure; the compound gauge; Boyle’s and Charles�Laws.

Lesson 6: The Refrigerant System Cycle. The refrigeration cycle; domestic and commercial refrigeration system components; valves; variations in accessory components; the gauge manifold.

Lesson 7: Refrigerants and Their Recovery. Refrigerant types and applications; using temperature-pressure charts; determining superheat; pumping ratio problems; safety precautions; ozone layer depletion; complying with the Federal Clean Air Act; recovery and recycling methods.

Lesson 8: Refrigerant Blends and Troubleshooting. Fractionation; bubble point; dew point; temperature glide; interpreting a temperature-pressure card for blends; selecting lubricants; performing a system retrofit to a blend; refrigerant contamination problems; detecting leaks; using refrigerant cylinders; correcting pressure problems; charging a system.

Lesson 9: Refrigerant Controls. Installing and adjusting automatic and thermostatic expansion valves and capillary tubes; when and how to use equalized valves; multiplexed evaporator operations.

Lesson 10: Valves, Troubleshooting Flow Controls. Hand and check valves; installing and troubleshooting solenoid, EPR, and CPR valves; how to install and adjust head pressure control and hot gas bypass valves; diagnosing and repairing AEV and TEV system problems; correcting EPR and CPR valve problems.
Lesson 11: Compressors and Their Lubrication. Compressor types and designs; compliant scroll compressors and disc-type valve designs; reciprocating compressors; aligning pulleys and flywheels; how to select, size, and replace V-belts; adding and removing oil; controlling liquid migration; vibration eliminators; the compressor data plate.

Lesson 12: Water Chillers. Vapor compression, centrifugal, low pressure, and absorption chiller operation; open- and closed-loop systems; ammonia and lithium bromide absorption cycles; refrigerant leaks.

Lesson 13: Basic Electricity. Using the voltmeter, ammeter, and ohmmeter; Ohm’s Law; open and short circuits; wire sizes; using the right insulation for conductors; connecting loads and switches; using and installing plugs, receptacles, and switches; using portable power tools.

Lesson 14: Electrical Circuits and Motors. How electrical power is transmitted; transformers explained; overcurrent; circuit protection devices; ground fault circuit interrupters; single- and three-phase motors; multi-speed motors; dual-voltage motors; induction motors; motor connections; capacitors; transformers; compressor terminals; fans and blowers; motor bearings.

Lesson 15: Solenoids, Relays and Motor Controls. Electromagnetic control devices; solenoid valves; relays; connecting and troubleshooting contactors and line starters; reading diagrams; adjusting and troubleshooting motor controls and thermostats; adjusting pumpdown cycles and safety controls.

Lesson 16: Defrost Cycles. Installing and adjusting time clocks; defrost cycles; connecting and troubleshooting defrost terminator thermostats; temperature and pressure termination adjustment.

Lesson 17: Gas and Oil Heat With Air Conditioning. Gas heat system components; adjusting burner flames, fan/limit controls, and heat anticipators; wiring heating and cooling system components; combustion; setting the electrodes; the primary control; the flame safeguard; stack control; oil furnace problems.

Lesson 18: Electric Heat With Air Conditioning and Heat Pumps. Components of electric heating systems; wiring connections; two-stage heating systems; isolating low-voltage control circuits from line-voltage circuits; how heat pumps work.

Lesson 19: Customer Relations and Your Career. Striving for excellence in customer service; secrets of establishing good customer relations; learning and using customers�names; shaking hands; your appearance; how to begin and end service calls; certification and licensing requirements for technicians.
...''

Phone:1.800.957.5412

School Address:

Ashworth University
430 Technology Parkway
Norcross, Georgia 30092
USA

Jobs & Resumes: Norcross
Houses & Roommates: Norcross

Electrician
Fashion Retailing
Personal Financial Planning
Fitness and Exercise
Floral Design
Forensic Science
Graphic Design
Gourmet Cooking & Catering
Gunsmithing
Health Records
Home Inspection
Hotel & Restaurant Management
Internet Marketing
Interior Decorating
Photography
Jewelry Design & Repair
Landscape Design
Locksmithing
Marketing Communications

Notice: The course description on this page was captured from the Internet as historical reference or submitted by visitors. It was archived statically and not updated from day to day.
 

Facts: This website holds more than 300,000 training course records worldwide, with hundreds of new postings daily. All services in this website are free!