Construction Trade Exam Research Area

Washington DC
Master A/C and Refrigeration Mechanical Limited
ICC Exam # 322

Licensing Agency

Washington DC
Department of Consumer and Regulatory Affairs
Board of Industrial Trades

1100 4th St SW
Washington, DC  20024
Phone:  (202) 442-4400
Trade Board 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, Systems Types, Terminology, and General Requirements 16
Refrigerant and Condensate Piping 18
Evaporators, Compressors, Condensers, Chillers, Cooling Towers, Heat Pumps, Heating and AC Appliances 15
Conditioned Air, Supply, Return, Makeup, Combustion Air, Air Ducts, Dampers and Insulation 15
Electrical Fundamentals and Controls 9
Refrigerants 10
Operationing Procedures, including Safety 9
Maintenance and Repairs 8

Total number of test questions: 70
Time allowed (hours): 3.0

Books Permitted in the Exam

1. International Mechanical Code, 2012, ICC. Buy at Amazon
2. Modern Refrigeration and Air Conditioning, 18th Edition, 2004, Althous, Turnquist, Bowditch, Bracciano. Buy at Amazon


Additional (Not Allowed) References
(Not used to write questions)

1. DC Municipal Refrigeration and Air Conditioning Regulations, Rule 17-305, Secretary of the District of Columbia Doc Link
Study materials are currently NOT available for this exam

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