Previous versions of this document are available under the Product Family tab.Guideline 1.1-2007 represents a revision of ASHRAE Guideline 1-1996, which contained both general commissioning process requirements and HVAC technical requirements in one document. The technical commissioning process requirements for different building systems are now being developed in individual discipline technical guidelines, separate from the commissioning process requirements that are defined in Guideline 0-2005.Although Guideline 1.1 focuses upon HVAC&R systems, a successful total building commissioning process will carefully validate interfaces and possible interferences between all building systems. Even when HVAC&R is the primary focus of the commissioning process, coordination among disciplines is essential for success. Annexes are included in this guideline to assist in the implementation of the commissioning process to HVAC&R systems and assemblies. The annexes are based upon actual project experience, with details based upon current practice, and they illustrate application of the commissioning process to a variety of HVAC&R systems and equipment.Units: I-P