Air Conditioning and Refrigeration Guide- common sense tips on maintaining, troubleshooting and repairing a variety of air conditioning and refrigeration equipment. Also, service tips and training guide.
BTU Calculator - provided by the Association of Home Appliance Manufacturers (AHAM). This worksheet, adapted from a printed version published by the Association of Home Appliance Manufacturers for the continental U.S, can help you estimate how much cooling capacity you need.
FreeCalc- applications for everyday mathematics, engineering, economics, and scientific calculations
International Mechanical Code 2012- second printing. E-book from the International Code Council (ICC).
Refrigeration Service Engineers Society (RSES)- training resource for HVAC professionals
Underflow Air Technology - from the Center for the Built Environment (CBE). Timely unbiased information on promising new building technologies and design techniques.
Energy Star - Resource for making energy efficient decisions
Environmental Protection Agency (EPA) - environmental information on refrigerants
Leadership in Energy & Environmental Design (LEED) - green building certification program that recognizes best-in-class building strategies and practices.
U.S. Department of Labor- HVAC/R statistics and basic information from the Occupational Outlook Handbook
Occupational Safety & Health Administration (OSHA) - Current OSHA standards and information on rulemaking process used to develop workplace health and safety standards.