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" "2166" "2008-05-28" "New Construction, Schools - New Construction" "See below for treatment of District Thermal Energy systems in LEED-NCv2.2, LEED-CSv2.0, LEED-Schools, 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, LEED-Schools, 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, LEED-Schools, 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" "2176" "2008-05-28" "New Construction, Schools - New Construction, Commercial Interiors, Core and Shell" "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" "2197" "2008-06-04" "New Construction, Schools - New Construction" "See below for treatment of District Thermal Energy systems in LEED-NCv2.2, LEED-CSv2.0, LEED-Schools, 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, LEED-Schools, 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, LEED-Schools, 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" "5067" "2008-02-22" "New Construction, Schools - New Construction, Commercial Interiors, Core and Shell" "CIRs have been posted under LEED-NC v2.0/2.1 stating that if a project team could reduce the potential use of CFC chillers to less than 5% of the time on an annual basis, then the project would qualify for the extended phase-out period of 5 to 7 years, assuming correct documentation is provided (as outlined in the EAp3 CIR Ruling dated 12/01/03). Would this same ruling apply to our project pursuing LEED-NCv2.2 for a planned 7-year phase out? Details of the project and the team\'s intended plans to demonstrate compliance are described below: The project is a multi-phased major renovation and demolition of the PeaceHealth Sacred Heart Medical Center located in Eugene, Oregon. The LEED-NC v2.2 project scope includes the two buildings referred to as the Main and Ancillary, both of which will undergo major renovations as a result of the project. The buildings will be cooled by 2 chillers, an existing 300-ton chiller and a new 600-ton chiller. The existing 300-ton centrifugal chiller located in the basement of the Main Building was manufactured by Carrier and installed in 1982. It had a major motor rebuild in approximately 1986. This unit supplies chilled water to the six air handlers in the Main second floor mechanical room that provide cooling to all the Main Building floors. This chiller uses R-11 refrigerant, which is a chlorofluorocarbon (CFC) and therefore violates the prerequisite requirements. The new 600-ton chiller will serve the Main and Ancillary Buildings in addition to the existing 300 ton chiller. Based on our load calculations, the peak cooling load in the Main Building is 435 tons and the Ancillary load is 450 tons. With these loads and Eugene weather data, the cooling load should not exceed 600 tons more for than 5% of the time. The 300 ton chiller will therefore be used less than 5% of the time. As the CFC chiller will be used less than 5% of the time, the project team is requesting a 7-year phase-out extension. In order to demonstrate compliance with the prerequisite the project will provide: 1) A summary of the new and existing buildings on campus and the cooling load of each building, 2) Sizes for each of the new and existing chillers, 3) A description of chiller staging to demonstrate use of CFC-free chillers as backup, and, 4) A letter of commitment from the owner, describing the phase-out plan and timeframe." "This inquiry is requesting to use a 7 year phase-out process for CFC refrigerants in order to qualify for EAp3 on a LEED NC v2.2 project where the CFC chiller will account for less than 5% of the building\'s cooling load. The process and supporting documentation outlined in this CIR represent an acceptable approach to meeting this requirement. Applicable Internationally. " "None" "None" "X"