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Public comment opened on proposed ASHRAE commissioning standard

December 16, 2013
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With functional changes and occupant productivity driving the need to commission existing facilities, ASHRAE says it is developing a guideline that addresses the commissioning process. The guideline is now open for public input.

ASHRAE Guideline 0.2P, The Commissioning Process for Existing Systems and Assemblies, describes the procedures, methods, documentation, requirements, and physical activities of the commissioning process for existing buildings, systems, and assemblies using the principles developed in ASHRAE Guideline 0-2005, The Commissioning Process.       

The proposed guideline is open for public comment until Jan. 20, 2014. For more information, visit www.ashrae.org/publicreviews.

“The most fundamental difference between new and existing building commissioning besides the obvious – one is new construction, one is existing – is that the function of the space may have changed substantially since it was designed,” said Bill Dean, chair of the committee writing Guideline 0.2. “Related to that is that the building occupants are people with a voice and opinion as opposed to the theoretical occupant in new construction represented by the architect or owner. A great deal of the focus in the past was on energy savings being used to fund building improvements; now we are seeing functional changes and occupant productivity driving the need to commission existing facilities.”

Commissioning of existing systems also should result in energy and cost savings. Dean referenced a 2009 study from Lawrence Berkeley National Laboratory that suggests a median 16% energy savings with a 1.1 year payback for energy based existing building commissioning. The study noted “commissioning is arguably the most cost-effective strategy for reducing energy, costs, and greenhouse-gas emissions in buildings today.”

Commissioning also impacts occupant comfort and assists in repurposing buildings. The quantifiable non-energy benefits are often equal to or greater than energy savings.

Guideline 0.2P is a process guideline that is intended to be applied to any type of facility.

“For example, we envision technical requirement guides being written to cover building envelope, elevators, fire alarm systems, smoke control, lighting electrical, plumbing, site infrastructure, and district heating and cooling, etc.” Dean said. “The same ASHRAE committee is currently developing the technical requirements for a proposed standard on existing HVAC&R systems.”

Other commissioning guidance from ASHRAE includes Guideline 0-2005, The Commissioning Process; Guideline 1.1-2007, HVAC&R Technical Requirements for the Commissioning Process; and Guideline 1.5-2012, The Commissioning Process for Smoke Control Systems; and Standard 202-2013, Commissioning Process for Buildings and Systems.

ASHRAE also is working on several other guidelines related to commissioning: Guideline 1.2P, The Commissioning Process for Existing HVAC&R Systems; Guideline 1.3P, Building Operation and Maintenance Training for the HVAC&R Commissioning Process; and Guideline 1.4P, Procedures for Preparing Facility Systems Manuals.

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