PSI D-1 Limited Warm Air, Air Conditioning & Refrigeration System Contractor HVAC NFPA 31 is a standard

NFPA 31 is a standard for the safe

Carpentry and Building Construction 2010 or 2016

and Residential Contractor (GC/BC/RC) Exam with this 100 Question Practice Test for the Walker's

Approved Production Facilities

1 -General

PSI D-1 Limited Warm Air, Air Conditioning & Refrigeration System Contractor HVAC NFPA 31 is a standardPSI 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 International Mechanical Code or International Mechanical Code