855773644-LEED-v5-BD-C-Reference-Guide-Launch-Edition - Page 370

Extracted Content

Option 1. Enhanced Commissioning

Option 1 offers two compliance paths. Projects can combine Paths 1 and 2 to achieve a total of three points. Enhanced commissioning activities for MEP systems or the building enclosure will lead to optimized system performance and further integration of the CxP into the design and post-occupancy efforts in a new construction project.

Enhanced commissioning provides substantial value for the limited additional efforts beyond EAp3: Fundamental Commissioning. EAp3: Fundamental Commissioning Tables 1 and 2 provide a comparison of the ASHRAE Standard 90.1 Commissioning Requirements for the prerequisite versus the credit requirements from ASHRAE Standard 202 for MEP systems and ASTM E2947-2021 for the building enclosure, along with typical milestones for key tasks to occur.

Projects that achieve both paths under Option 1 will automatically achieve EAp3: Fundamental Commissioning .

PATH 1. ENHANCED COMMISSIONING FOR MEP SYSTEMS

ASHRAE Standard 202-2024

ASHRAE Standard 202-2024 outlines the commissioning process for mechanical, electrical, plumbing, control, data center, process, building monitoring, and renewable energy systems. It is a systematic process that begins in the early design phase and continues through the warranty or post-occupancy phase. Along with the ASHRAE Standard 202-2024 requirements, teams must also comply with incremental LEED BD+C requirements.

EAp3: Fundamental Commissioning, Table 1 provides a detailed comparison of the ASHRAE Standard 90.1, Commissioning Requirements for the prerequisite and the ASHRAE Standard 202 requirements for Enhanced Commissioning of MEP systems. The table also provides timing for each task.

Timing of CxP Engagement

ASHRAE 202 requires CxP review of the Owners Project Requirements (OPR) and initial development of the Commissioning Plan during pre-design, necessitating very early engagement of the CxP in the design process. If the CxP is engaged after pre-design, take alternative measures ensuring alignment with the intent of the Standard 202 timeline.

U.S. Green Building Council LEED v5 Reference Guide for Building Design and Construction, April 2025 Launch Edition 360