855773667-LEED-v5-O-M-Reference-Guide-Launch-Edition-1 - Page 195
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month reporting period. Refer to details in the Rating System for specific criteria associated with each phase.
RETRO-COMMISSIONING PROVIDER (RCXP)
During the Engagement Phase, projects must identify a third-party Retro-commissioning Provider (RCxP) who will lead the project team through all aspects of the process. Either an entity or an individual can serve as the RCxP.
The RCxP must have direct experience on at least two similar projects. The previous experience should address buildings of similar types and size ranges, similar types and capacities of HVAC and service water heating equipment, and controls with similar complexity.
Experience documented for an RCxP entity must reflect the team performing the work for the project.
FUNCTIONAL TESTS
For buildings that have undergone an initial commissioning (Cx) effort, confirm if the initial functional and performance tests used during the Cx process can be leveraged for the RCx efforts. For projects new to commissioning, develop functional performance test scripts written specifically for the equipment and systems included in the scope of work.
The RCxP must be on-site at least once to perform a site assessment and participate in functional testing.
Sampling
A sampling strategy for testing similar systems is acceptable for credit compliance. Sampling will only give teams a partial analysis of the building operations. Unlike new construction, the age and condition of each piece of equipment can vary greatly.
RETRO-COMMISSIONING MEASURES (RCMS)
Develop a list of retro-commissioning measures (RCMs) that identify all problems observed during the RCx process. This should identify no or low-cost items, items that have quick paybacks, and capital expenditure projects. Depending on their priorities and available funds, these items may be subjective to each owner. A no or low-cost item to one owner may be classified as an item with a quick payback to another. The RCxP and the owner must develop boundaries for each RCM category before developing the final list.
- No or low-cost items . No or low-cost items are issues that can be resolved quickly, with the owner or operator’s staff. Labor efforts are minimal. Necessary parts (if needed) are
U.S. Green Building Council LEED v5 Reference Guide for Operations and Maintenance, April 2025 Launch Edition 185