The Refrigeration School, Inc. was founded in Phoenix, Arizona in 1965 to meet the growing need for high quality education and training of air conditioning and refrigeration technicians. RSI was started by family members, with backgrounds in refrigeration and air conditioning, who had a great deal of insight and inspiration and the knowledge necessary to train new technicians to the required skill level. Over the years RSI has grown and developed an excellent reputation for providing the student with the best possible service and has become one of the leading providers of HVAC/R technicians in the country.