Construction Trade Exam Research Area

(C-21) Refrigeration and
Air Conditioning Contractor

Apply for the License

Nevada State Contractor's Board
2310 Corporate Circle, Suite 200
Henderson, NV  89074
Phone: (702) 486-1100

Northern Nevada Office
9670 Gateway Dr, Suite 100
Reno, NV  89511-5906
Phone: (775) 688-1141
NV State Contractors Board

Exam Administrator

PSI Licensure: Certification
3210 E. Tropicana
Las Vegas, NV 89121
Phone: (800) 733-9267
Candidate Information Web Page

Exam Type


Exam Content

Subject Areas # of
Piping 6
Insulation 1
Hangers and Supports 3
Sound, Vibration and Seismic Control 1
Heating and Cooling Principles 3
Refrigerants and Refrigeration 7
Load Calculations 6
Testing, Adjusting and Balancing 3
Controls 5
Machine Room 1
A/C and Heat Pump Equipment 4
Furnaces and Heaters 4
Hydronics 2
Chimneys, Flues and Vents 5
Combustion Air 2
Fuel Systems 10
Ducts 6
Evaporative Cooling 2
Chillers 3
Solar 4
Ventilation and Exhausts 3
Safety 4

Total Number of Test Questions: 85
Time Allowed (Hours): 3.0

This exam may also include questions on the following subjects:

  • Reading and interpreting construction codes and regulations
  • Nevada Health department regulations
  • Appropriate building codes
  • Trade materials, tools, equipment and methods
  • Nevada Occupational Safety and Health Rules
The Nevada licensing process requires that you pass a Contractor Management Survey Exam
unless you are already a licensed contractor who is adding a classification to his/her license.

Business and Law Offering

Books Allowed in the Exam

1. Uniform Mechanical Code, 2012, IAPMO. Buy from Publisher
2. NFPA 54: National Fuel Gas Code, 2012, NFPA. NFPA Link
These references will not be available in the examination center.  Please see the PSI candidate bulletin regarding restrictions on personal copies.


Books NOT Allowed in the Exam

1. Code of Federal Regulations - 29 CFR Part 1926 (OSHA), GPO - OR - (OSHA) Selections by PSI, (latest amendments). Buy from PSI
2. Modern Refrigeration and Air Conditioning, 19th or 20th Edition, 2013, Althous, Turnquist, Bowditch, Bracciano. Buy at Amazon
3. HVAC Duct Construction Standards - Metal and Flexible, 3rd Edition, 2005, SMACNA. Buy at Amazon
4. Manual N - Commercial Load Calculation, 5th Edition, 2008, ACCA. Buy at Amazon
5. Solar Water and Pool Heating Manual: Design and Installation & Repair and Maintenance, Florida Solar Energy Center. Doc Link
6. Evaporative Air Conditioning Handbook, 3rd Edition, 1997, John R. Watt, Will K. Brown. Buy at Amazon

Recommended Study Materials

Nevada • (C-21) Refrigeration and Air Conditioning Contractor
Product NameValue  
Comprehensive Tutorial price More Information
Practice Tests ( 3 ) price More Information
Delivery Notice
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The Bundle

Includes Tutorial(s) and
Practice Tests listed above

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