Construction Trade Exam Research Area

Denver (Colorado)
(228) Refrigeration Operator

Apply for the License

City and County of Denver ™
Community Planning and Development

201 W. Colfax Ave, Dept. 205
Denver, CO  80202
Phone: (720) 865-2770
Denver Licensing Link

Exam Administrator

International Code Council ™
900 Montclair Rd.
Birmingham, AL 35213
(888) 422-7233, ext. 5524
Candidate Information Web Page

Exam Type


Exam Content

Subject Areas% of
Theory, Terminology and General Requirements 18
Compressors and Types of Systems 10
Evaporators, Condensers and Cooling Towers 10
Piping Inspection and Field Testing 8
Air Ducts and Insulation 6
Electrical and Controls 22
Refrigerants 12
Operation Procedures 6
Maintenance and Repairs 8

Total number of test questions: 50
Time Allowed (hours) 2.5


Books Allowed in the Exam

1. International Mechanical Code, 2009, ICC Buy at Amazon
2. National Electrical Code (NFPA-70), 2011, NFPA Buy at Amazon
3. Modern Refrigeration and Air Conditioning, 18th Edition, 2003 Althous, Turnquist, Bowditch, Bracciano. Buy at Amazon
Study materials are currently NOT available for this exam

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