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California
C-20 Warm-Air Heating, Ventilation and Air-Conditioning
| Apply for the license |
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Contractors State License Board
9821 Business Park Drive
P.O. Box 26000
Sacramento, CA 95826
Phone: (800) 321-2752
www.cslb.ca.gov
|
| Exam Type |
| CLOSED BOOK |
| Exam Content |
| Subject Area |
Approx. % of Questions |
| System Evaluation and Design |
15 |
| Fabrication |
5 |
| System Installation and Start Up |
33 |
| Service, Maintenacnce and Repair |
37 |
| Safety |
10 |
|
| Time Allowed (hours) |
2.5 |
| In California you must also pass a Law and Business Exam unless you are already a licensed contractor who is adding a classification to your license. |

|
Reference Books NOT Permitted in the Exam
(used to write questions) |
| 1. |
Modern Refrigeration and Air Conditioning,
Althous, Turnquist, Bowditch, Bracciana. |
| 2. |
HVAC Duct Construction Standards - Metal and Flexible,
Sheet Metal and Air Conditioning Contractors' National Association. |
| 3. |
Heating and Cooling Essentials,
Jerry Killenger, LaDonna Killenger. |
| 4. |
California Building Code (California Code of Regulations,
Title 24, Part 2), 2001, International Code Council (based on 1997 Uniform
Building Code). |
| 5. |
California Electrical Code (California Code of Regulations,
Title 24, Part 3), 2004, California Building Standards Commission (based
on 2002 NEC). |
| 6. |
California Mechanical Code (California Code of Regulations,
Title 24, Part 4), 2001, International Association of Plumbing and Mechanical
Officials (based on 2000 Uniform Mechanical Code). |
| 7. |
California Plumbing Code (California Code of Regulations,
Title 24, Part 5), 2001, International Code Council (based on 2000 Uniform
Plumbing Code). |
| 8. |
Cal/OSHA Construction Safety Orders. California
Code of Regulations, Title 8, Division 1 - Industrial Relations, Chapter 4, Subchapter 4. |
| 9. |
Manual D - Residential Duct Systems,
1995, Air Conditioning Contractors of America. |
| 10. |
Manual J - Residential Load Calculation, 2002,
Air Conditioning Contractors of America. |
| 11. |
Manual H - Heat Pump Systems,
Air Conditioning Contractors of America. |
| 12. |
Manual P, Psychrometrics: Theory and Applications,
Air Conditioning Contractors of America. |
| 13. |
Commercial Applications, Systems and Equipment (Manual
CS), Air Conditioning Contractors of America. |
| 14. |
Manual RS, Comfort, Air Quality, & Efficiency
By Design, Air Conditioning Contractors of America. |
| 15. |
Study Guide for EPA Section 608 Test (10A-SG),
Air Conditioning Contractors of America. |
| 16. |
Refrigerant Transition and Recovery Certification Program for
HVACR Technicians, Air Conditioning Contractors of America. |
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Recommended Study Materials
California • C-20 Warm-Air Heating, Ventilation and Air-Conditioning |
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