Construction Trade Exam Research Area

R-39 / C-79 (CR-79) Air Conditioning and
Refrigeration, including Solar

(Residential / Commercial / Dual License)

Apply for the License

Arizona Registrar of Contractors ™
1700 W. Washington St, Suite 105
Phoenix, AZ  85007
Phone: (602) 542-1525
Licensing Link

Exam Administrator

PSI Licensure: Certification ™
3210 E. Tropicana
Las Vegas, NV  89121
Phone:  (800) 733-9267
Candidate Bulletin Link

Exam Type


Exam Content

R-39 / C-79 Subject Areas # of
Refrigeration 12
Air Conditioning 12
Warm Air Heating 12
Controls and Motors 8
Boilers 4
Ventilation 4
Evaporative Coolers 4
Fuel Piping Systems 5
Water Piping Systems 5
Steam, Hot, Chilled and Condensing Water 5
Testing, Balancing, and Inspection 5
Sizing and Estimating 4

Total number of test questions: 80
Time allowed (minutes): 210


R-39 / C-79 Solar Portion # of
Collection Loops 5
Components 4
Installation 5
Maintenance 2
Mounting 4
Principles 5
Solar Systems Piping 5

Total number of test questions: 30
Time allowed (minutes): 75
The state of Arizona also requires that you take and pass a written Business Management exam for this trade

Go to Business and Law Offering

Books Allowed in the Exam

1. Code of Federal Regulations - 29 CFR Part 1926 (OSHA), GPO [or] (OSHA) Selections by PSI Buy from Publisher
2. International Fuel Gas Code, 2018, ICC Buy at Amazon
3. International Mechanical Code, 2018, ICC Buy at Amazon
4. International Plumbing Code, 2018, ICC Buy at Amazon
Go to OSHA Resources

Books NOT Allowed in the Exam

1. Modern Refrigeration and Air Conditioning, 19th or 20th Edition, Althous, Turnquist, Bowditch, Bracciano. Buy at Amazon
2. Low Pressure Boilers, 4th Edition, Frederick M. Steingress. Buy at Amazon
3. ACCA Ductulator (Duct Slide Rule), ACCA Buy at Amazon
4. Solar Water and Pool Heating Design Manual, 2006, Florida Solar Energy Center Buy at Amazon
Study materials are currently NOT available for this exam

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