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Custom Training Available AZ HVAC / Mechanical Dates Available Course Retake Support

Arizona (C-39 or CR-39 or R-39) Residential Air Conditioning and Refrigeration (Residential/Commercial)

This classification allows the licensee to install and repair comfort air conditioning systems, including refrigeration, evaporative cooling, ventilating, and heating with or without solar equipment. Installation and repair of machinery, units, accessories, refrigerator rooms, and insulated refrigerator spaces, and controls in refrigerators. If necessary, a new circuit may be added to the existing service panel or sub-panel. Excluded is the installation of a new service panel or sub-panel.


This scope includes all R-39R subclassifications.


R-39R Air Conditioning and Refrigeration


R-39R Temperature Control Systems R


-39R Warm Air Heating, Evaporative Cooling and Ventilating


R-39R Evaporative Cooling and Ventilators


Upon the effective date of these rules, no new applications for the R-39R Gas Refrigeration, Temperature Control Systems, Warm Air Heating, Evaporative Cooling and Ventilating, Evaporative Cooling and Ventilators, and Pre-Coolers license classifications will be accepted and no new R-39R licenses in these classifications will be issued.

American Contractors Exam Services classroom seminar with instructor teaching contractors
Seminar Format

What Is Included in Your Seminar

  • Required-book list and tabbing guidance
  • American Contractors Exam Services study guide and workbook
  • Book navigation workshop
  • Practice questions and timing strategy
  • Instructor support during class
  • Post-registration support from American Contractors Exam Services

Required Books

The reference materials listed were used to create the questions for this exam. The exam may also contain questions based on trade knowledge or general industry practices. Except for Code books, you can base your answers on later editions of reference books as they become available. For Code questions, the examinations will be based only on the edition of the Code book that is listed.

Some of the books are not permitted into the exam. This is a semi-open book test.


Add All Required Books to Cart ($867.35)

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