ASHRAE Manual for Saving Energy

(Oct.3) An updated version of the User’s Manual for ANSI/ASHRAE/IESNA Standard 90.1-2007, Energy Standard for Buildings Except Low-Rise Residential Buildings, is now available. The manual is intended to assist users of the ASHRAE/IESNA energy-conservation standard in energy-efficient design. It has gone through an extensive revision process to incorporate the various addenda approved since the 2004 edition.

Updates have been made to reflect and illustrate the changes in every portion of the 90.1 Standard. Changes have been to Appendix G, which provides specific guidance on the rules and procedures used to simulate building energy and energy costs, when the objective is to substantially exceed the requirements of 90.1.

“The Appendix G changes will be particularly useful to people involved with projects that are trying to achieve a certain amount of savings over and above the minimum requirements of the standard,” said Keith Emerson who oversaw review of the manual for the Standard 90.1 committee.

The 90.1-2007 User’s Manual illuminates the standard by providing detailed instruction, calculation examples and compliance forms for the design of commercial and high-rise residential buildings. It includes sections on administration and enforcement, building envelope, HVAC systems, service water heating, power, lighting, the energy-cost budget method and the building-performance rating method.