PSI D-1 Limited Warm Air, Air Conditioning & Refrigeration System Contractor

PSI D-1 Limited Warm Air, Air Conditioning & Refrigeration System Contractor

PSI Connecticut D-1 Limited Warm Air, Air Conditioning & Refrigeration System Contractor license allows individuals to install, repair, replace, maintain, or alter warm air, air conditioning, and refrigeration systems, including necessary piping and pumping equipment, but not oil burners. 

Approved References

1. International Mechanical Code or International Mechanical Code Commentary, 2015, 2018, and 2021 Editions
2. Manual J - Residential Load Calcs, reprinted 2006, Eighth Full Edition
3. Manual N - Load Calculation for Small Commercial Buildings, Fifth Edition, 2008
4. NFPA 54: National Fuel Gas Code or National Fuel Gas Code Handbook, 2012
5. Code of Federal Regulations - 29 CFR Part 1926 (OSHA), with latest available amendments
6. Modern Refrigeration and Air Conditioning, 22nd Edition
7. ACCA Ductulator, Air Conditioning Contractors of America
8. HVAC Duct Construction Standards, 2005, 3rd Edition, SMACNA
9. NFPA 58: Liquefied Petroleum Gas Code, 2014, National Fire Protection Association

Note: Highlighted and tabbed books ordered out of the state of Florida may take up to 5-7 business days to be shipped.

PSI Candidate Information Bulletin

GAIN THE SKILLS YOU NEED TO PASS THE EXAM THE FIRST TIME!