The manual includes a CD containing Envstd 4.0 energy calculation software and compliance forms. The entire package was prepared by Eley Associates of San Francisco and is available through ASHRAE (www.ashrae.org).
The updated energy efficiency standard covers HVAC systems, service hot water, building envelopes, and lighting for commercial, industrial, institutional, and residential high-rise buildings. It is the result of cooperative work from the American National Standards Institute (ANSI), the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE), and the Illuminating Engineering Society of North America (IESNA), and is therefore named ANSI/ASHRAE/ IESNA Standard 90.1-2001.