855773520-LEED-v5-ID-C-Reference-Guide-Launch-Edition-1 - Page 147
Extracted Content
NOTE: The refrigerant inventory may be documented for the tenant or for the entire building, provided that these include tenant systems.
REQUIREMENTS EXPLAINED
Option 1 applies to projects without refrigerants. Projects with refrigerants must follow Option 2.
Option 1. No Refrigerants
Projects with no new or reused refrigerant-containing equipment under the control of the tenant automatically meet the prerequisite.
Option 1 criteria does not preclude the use of equipment containing less than 0.5 lbs. (225 g), such as standard residential refrigerators, small wine coolers, or portable space dehumidifiers.
OR
Option 2. Refrigerants
Teams pursuing this path must avoid HCFC refrigerants, analyze alternatives for refrigerants with a GWP greater than 700, inventory refrigerant-using equipment, and ensure no leaks from refrigerant-containing equipment.
No HCFC refrigerants New equipment installed within the project scope of work cannot use HCFC refrigerants, which cause damage to the ozone layer and often have very high GWP.
Developed and developing countries In developed countries, government regulations have already phased out HCFC refrigerants for new equipment per the Kigali Amendment to the Montreal Protocol [36] .
In developing countries, teams must take precautions to limit selections to equipment that does not use HCFCs . Equipment specifications must clearly disallow HCFCs such as R-22, used in air conditioners, or R-123, commonly used in chillers.
Evaluation of alternative refrigerants 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.
36 “About Montreal Protocol”, UN Environment Programme, accessed March 31, 2025, https://www.unep.org/ozonaction/who-weare/about-montreal-protocol.
U.S. Green Building Council LEED v5 Reference Guide for Interior Design and Construction, April 2025 Launch Edition 136