855773667-LEED-v5-O-M-Reference-Guide-Launch-Edition-1 - Page 137
Extracted Content
REPORTING PERIOD AND TRACKING REQUIREMENTS
The reporting period for this prerequisite is 12 months. For initial LEED v5 O+M: Existing Buildings certification, refrigerant leakage tracking and reporting is only mandatory for the final three months of the reporting period.
Additional considerations If pursuing EAc3: Enhanced Refrigerant Management Performance, provide leakage tracking and reporting for the full 12-month reporting period.
REFRIGERANT INVENTORY
The refrigerant inventory tracks the total global warming potential (GWP) of equipment in the project. GWP measures the relative contribution of a substance toward heating the atmosphere compared to the same mass of carbon dioxide (CO2). For example, R-410A with a GWP of 2,088 traps 2,088 times more heat in the atmosphere than CO2.
During the 12-month reporting period, complete or update an inventory of all refrigerantcontaining equipment in the project boundary owned or controlled by the project owner and/or facilities manager.
Equipment that contains less than 0.5 pounds (225 grams) of refrigerant, such as standard residential refrigerators, can be excluded from the calculations. Table 1 is a sample, noncomprehensive list of equipment that may be present in a project.
Table 1. Refrigerant-containing equipment
| Application | Equipment/System type |
|---|---|
HVAC, space cooling equipment | Stationary air conditioners and heat pump Chillers Computer room air conditioning (CRAC) units |
| Service water heaters | Heat pump service water heaters |
Retail | Food refrigeration Cold storage |
| Commercial | Vending machines Ice machines |
| Industrial process refrigeration | Process chillers Ice rink chillers Other process refrigeration |
Data collection For each piece of equipment, document the refrigerant properties, including type of refrigerant, GWP of refrigerant (GWPREFRIGERANT), and refrigerant charge (Rc). When the project includes field-assembled refrigerant piping with long pipe lengths or large pressure drops (e.g., variable refrigerant flow, systems or industrial process equipment), teams must account for additional Rc
U.S. Green Building Council LEED v5 Reference Guide for Operations and Maintenance, April 2025 Launch Edition 127