(Supersedes ANSI/ASHRAE Standard 140-2004)
Includes ANSI/ASHRAE addenda listed in Annex C

This standard specifies test procedures for evaluating the technical capabilities and ranges of applicability of computer programs that calculate the thermal performance of buildings and their HVAC systems.

This Standard Method of Test can be used for identifying and diagnosing predictive differences from whole building energy simulation software that may possibly be caused by algorithmic differences, modeling limitations, input differences, or coding errors. The current set of tests included herein consists of 1) comparative tests that focus on building thermal envelope and fabric loads and mechanical equipment performance and 2) analytical verification tests that focus on mechanical equipment performance. This procedure tests software over a broad range of parametric interactions and for a number of different output types, thus minimizing the concealment of algorithmic differences by compensating errors. Different building energy simulation programs, representing different degrees of modeling complexity, can be tested. However, some of the tests may be incompatible with some building energy simulation programs.

This is a zip file that includes spreadsheets and testing files.

Units: Dual

Format: Softcover