(D-1) Limited Warm Air, Air Conditioning & Refrigeration System Contractor
Apply for the License
Heating, Cooling & Sheet Metal Licensing Unit
450 Columbus Blvd, Suite 801
Hartford, CT 06103
PSI Services LLC
3210 E. Tropicana
Las Vegas, NV 89121
Phone: (855) 746-8171
|Subject Areas||# of|
|Hangers & Supports||2|
|Sound, Vibration & Seismic Control||1|
|Heating & Cooling Principles||5|
|Refrigerants & Refrigeration||8|
|Testing, Adjusting & Balancing||2|
|A/C & Heat Pump Equipment||5|
|Furnaces & Heaters||4|
|Chimneys, Flues & Vents||2|
|Fuel Gas Systems||10|
|Ventilation & Exhausts||3|
Total number of test questions:
Time allowed (hours):
In addition to the trade-specific examination, you are required to pass the Connecticut Business & Law Exam offered by PSI.
Books Allowed in the Exam
International Mechanical Code, 2015, 2018 or 2021, ICC
Manual J: Residential Load Calculations, 8th Edition, ver 2.50, 2016, ACCA
Manual N - Commercial Load Calculation, 5th Edition, 2008, ACCA
NFPA 54: National Fuel Gas Code [or] National Fuel Gas Code Handbook, 2012, NFPA
Code of Federal Regulations, 29 CFR Part 1926 (OSHA), GPO [or] (OSHA) Selections by PSI, 2013
Modern Refrigeration and Air Conditioning, 19th, 20th or 21st Edition, Althous, Turnquist, Bowditch, Bracciano
ACCA Ductulator (Duct Slide Rule), ACCA
HVAC Duct Construction Standards - Metal and Flexible, 3rd Edition, SMACNA
NFPA 58: Liquefied Petroleum Gas Code, 2014, NFPA
Available Study Materials
PSI OSHA Selections
Sample questions are based on the PSI publication titled “29 CFR PART 1926 Selections, as of June 2013” (highlighted in green above).
This file contains approx. 800 sample questions.
REMINDER: PSI uses this book for many exams they offer. Not all sections of this code will apply to your exam.
We also include a table showing the relationship between our questions and OSHA code sections. Corrections to the original PSI publication are noted.