The purpose of this CIR is to request an alternate compliance path for fundamental systems commissioning for the major renovation of a 10,000 sq. ft., Texas office building which is nearing the end of construction (the tenants have moved in on a temporary occupancy certificate). It has been the intent of the project team from design onset to submit the project for LEED Certification. Accordingly, substantial efforts and monies have been committed to strengthening the building envelope (from an EA standpoint), to replacing the HVAC systems with high-efficiency equipment, to installing measurement and verification equipment and for several other sustainable measures outside of the EA category. Unfortunately, due to the inexperience of some of the team members and a fast-track construction schedule, the commissioning process did not occur through the design and early construction as outlined in the reference guide. The team asks the USGBC to review the alternate commissioning strategy outlined below and to advise on whether this approach fully meets the requirements of EA Prerequisite 1: 1. Designate an individual as the CxA: The Owner has designated an employee of the MEP design firm as the CxA. The selected individual for this role is part of a specialized commissioning group within the firm and has not been involved with the design or construction of the project. He has served as the commissioning agent for several projects of similar scope and technical complexity. 2. CxA shall review Owner\'s Project Requirements and Basis of Design: The Design Team and Owner will prepare the Owner\'s Project Requirements to include Owner and User Requirements, Environmental and Sustainability Goals, Energy Efficiency Goals, Indoor Environmental Quality Requirements, Equipment and System Expectations, and Building Occupant and O & M Personnel Requirements. The Design Team will prepare a Basis of Design narrative which explains the design of the HVAC&R systems, the project lighting, the domestic hot water system, associated controls, and any additional systems requiring commissioning. The CxA will review and comment on these documents and the documents will be updated by the owner and design team respectively. 3. Develop and Incorporate commissioning requirements into the construction documents: The CxA will develop commissioning specifications which will be incorporated into the construction documents via supplemental instructions to the construction team and will become part of the construction documents. 4. Develop and Implement commissioning plan: The CxA will develop the commissioning plan which will include the Commissioning Program Overview, the Commissioning Team, and the Description of the Commissioning Process Activities. The commissioning plan will take into account that the equipment has already been installed and started up. 5. Verify Installation and performance of systems to be commissioned and complete a commissioning report: CxA will still follow all credit requirements, including pre-functional and functional testing procedures even though equipment has already been started. Deficiencies will be reported, and contractors will correct any deficiencies found during commissioning activities via supplemental instructions or under warranty. CxA will complete a summary report.
The project team is proposing a commissioning process to meet the requirements of this prerequisite, where the project team engages the commissioning authority in the late stages of construction after tenant occupation. The proposed process is not acceptable. The key steps of the commissioning process do not deliver the intended value if performed outside of the normal design and construction schedule. The USGBC has devised the LEED for Existing Building Operation and Maintenance Rating System for cases such as this and the project team is encouraged to consider that Rating System for this building.