Entry Type ID Date Applicable Rating System Primary Credit Inquiry (LIs) Ruling (LIs) Related Addenda/LIs Related Resources Campus Applicable Internationally Applicable Country Applicability Reference Guide (Addenda) Page (Addenda) Location (Addenda) Description of Change (Addenda) "LEED Interpretation" "10039" "2011-05-09" "New Construction, Existing Buildings, Core and Shell, Schools - New Construction" "EAc4 - Enhanced refrigerant management" "In the calculation of EAc4, is it acceptable to count the quantitative cooling loads addressed directly by the direct/indirect evaporative cooling units, that would otherwise be met with chillers, so that the refrigerant in walk-in refrigerators is not given an unfair weight in the calculations?" "As the walk-in refrigerators are not part of the base building HVAC systems they are excluded from the requirements of this credit, provided that the total capacity of this equipment represents less than 15% of the total building installed HVAC capacity.\n\n **Update October 1, 2013: Per the rating system requirements, all refrigeration included as part of the scope of work of the project, and having more than 0.5 pounds of refrigerant must be included in the EA Credit 4 analysis, not matter what percentage of the overall HVAC capacity. This interpretation only allows exclusion of walk-in refrigerators that are not part of the base building (meaning that these systems are outside of the scope of work of the project)." "None" "None" "X" "LEED Interpretation" "2180" "2008-05-28" "New Construction, Schools - New Construction, Commercial Interiors, Core and Shell" "EAc4 - Enhanced refrigerant management" "See below for treatment of District Thermal Energy systems in LEED-NCv2.2, LEED-CSv2.0, and LEED-CIv2.0." "USGBC has developed a document that clarifies how district or campus heating or cooling systems are to be treated in all Energy and Atmosphere prerequisites and credits for LEED-NC, LEED-CS, and SSc1, Options K & L under LEED-CI. That document is available for download from the LEED Reference Documents page, here: https://www.usgbc.org/ShowFile.aspx?DocumentID=4176. All LEED-NC, LEED-CS, and LEED-CI projects involving district or campus heating or cooling systems that registered for LEED after this posting date must follow that guidance, and such projects that registered before this date may optionally follow that guidance." "None" "None" "LEED Interpretation" "5271" "2007-09-10" "Core and Shell" "EAc4 - Enhanced refrigerant management" "The developer of our project controls the design and construction of the entire core and shell building but has no control over the tenant fit out. The tenant is not participating in any LEED initiatives for the project. Any aspect of the building that falls under the tenant fit out, is being excluded from the LEED CS project scope, and is not included in what we refer to as ""base building"". The tenant fit-up is however being completed at the same time as base building. The base building Mechanical Consultant is providing equipment that is compliant with the requirements of this credit. The base building mechanical design consists of permanently installed units to provide cooling and conditioning of the base building for the initial tenant but also for future occupants of the building. The base building fire suppression system is also compliant with the credit requirements. The initial tenant is including large food serving and preparation areas that will require supplementary cooling equipment for air conditioning of spaces, and refrigeration for food storage. This equipment will remain the property of the tenant and would be removed upon termination of the tenant lease. The equipment installed by the tenant is not likely to comply with the requirements of this credit and is larger than the provided ""Small HVAC"" exemption criteria. Please confirm whether this credit can be obtained under LEED Core and Shell ""without making any requirement of a tenant"" (LEED CS Pg. 18), effectively exempting the tenant supplied equipment as not under the base building and therefore Core and Shell scope?" "As the equipment of concern is outside of the current scope of work, is limited to tenant fit-out and would be removed upon termination of the lease, it can be excluded from the credit submittal. It is recommended that tenants will be provided with information regarding this credit and strongly encouraged to comply with the intent, goals and requirements of the credit. Applicable Internationally. " "None" "None" "X"