855773644-LEED-v5-BD-C-Reference-Guide-Launch-Edition - Page 247
Extracted Content
o Review/witness performance testing.
o Attend milestone meetings at 50% and 100% completion.
o Review sampling of QA/QC documentation (checklist and tests).
o Track identified issues to resolution (Issues/Resolution Log).
o Develop a preliminary commissioning report.
- Occupancy/Operations Phase
o Review training program.
o Develop final commissioning report.
o Develop or review the ongoing Cx plan.
Comparison of Fundamental EAp3: Fundamental Commissioning and EAc5: Enhanced Commissioning
Table 1 for MEP systems and Table 2 for the Building Envelope provide a detailed comparison of key tasks and milestones for EAp3: Fundamental Commissioning and EAc5: Enhanced Commissioning .
Table 1. MEP System Tasks for EAp3: Fundamental Commissioning and EAc5: Enhanced Commissioning
| Phase | Task Descriptions | Fundamental ASHRAE 90.1-2019 | Enhanced ASHRAE 202-2018 | Minimum Requirements as listed |
|---|---|---|---|---|
| Identification of CxP | Section 4.2.5.2, with timing required by LEED | Section 5.1.1, with timing required by LEED | Fundamental: By the end of design development phase. Enhanced: During predesign or very early in the design phase. | |
| Predesign For CxP engaged later than predesign, tasks must be completed immediately upon CxP engagement. | Assist in Development/Revie w and Update Owner’s Project Requirements (OPR) to include HVAC, Service Water Heating, Power, Lighting and Other Equipment | Required by LEED | Section 6.2, 6.3 | Enhanced: OPR shall list and define the systems and assemblies to be commissioned, including sampling strategies accepted by the Owner. It should clearly define objectives, Cx scope and requirements and identify the number, format and |
U.S. Green Building Council LEED v5 Reference Guide for Building Design and Construction, April 2025 Launch Edition 237