Construction Trade Exam Research Area

(D-1) Limited Warm Air, Air Conditioning
and Refrigeration System Contractor

Apply for the License

Connecticut Department of Consumer Protection ™
Occupational & Professional Licensing Division

450 Coloumbus Blvd, Suite 801
Hartford, CT  06103
(860) 713-6135
DCP Licensing Site Link

Exam Administrator

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

Exam Type


Exam Content

Subject Areas # of
Insulation 1
Hangers and Supports 2
Sound, Vibration and Seismic Control 1
Heating and Cooling Principles 5
Refrigerants and Refrigeration 8
Testing, Adjusting and Balancing 2
Controls 5
Machine Room 1
A/C and Heat Pump Equipment 5
Furnaces and Heaters 4
Chimneys, Flues and Vents 2
Combustion Air 2
Fuel Gas Systems 10
Ducts 6
Chillers 3
Ventilation and Exhausts 3
Safety 4
Load Calculations 6

Total number of test questions: 70
Time allowed (hours): 3.0
The state of Connecticut 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. International Mechanical Code - OR - International Mechanical Code Commentary, 2009, 2012 or 2015 Editions, ICC Buy at Amazon
2. Manual J - Residential Load Calculations, 8th/2.0 Edition, 2006, ACCA Buy at Amazon
3. Manual N - Commercial Load Calculation, 5th Edition, 2008, ACCA Buy at Amazon
4. NFPA 54: National Fuel Gas Code - OR - National Fuel Gas Code Handbook, 2012, NFPA Buy at Amazon
5. Code of Federal Regulations - 29 CFR Part 1926 (OSHA), GPO [or] (OSHA) Selections by PSI Buy from Publisher
6. Modern Refrigeration and Air Conditioning, 19th or 20th Edition, Althous, Turnquist, Bowditch, Bracciano Buy at Amazon
7. ACCA Ductulator (Duct Slide Rule), ACCA Buy at Amazon
8. HVAC Duct Construction Standards - Metal and Flexible, 3rd Edition, SMACNA Buy at Amazon
9. NFPA 58: Liquefied Petroleum Gas Code, 2014, NFPA Buy at Amazon
Study materials are currently NOT available for this exam

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