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" "10042" "2011-05-09" "New Construction, Commercial Interiors, Core and Shell, Schools - New Construction" "EAp1: Fundamental Commissioning of the Building Energy Systems" "Can an individual who has not been a CxA in the past, but has extensive experience with all aspects of the commissioning process, serve as the CxA for a LEED project?" "To meet the requirements of EAp1, the individual serving as the CxA must have commissioning experience at a similar managerial level on a minimum of two projects of comparable complexity. While this experience is typically confirmed based on previous experience as the CxA, it can be achieved based on similar experience. Applicable internationally." "None" "None" "X" "LEED Interpretation" "1697" "2007-03-15" "New Construction, Core and Shell, Schools - New Construction" "EAp1: Fundamental Commissioning of the Building Energy Systems" "In this CIR, we are asking for clarification on whether our selected Commissioning Agent (CxA) meets the technical requirements for compliance with the LEED prerequisite and optional point for commissioning. We believe that this arrangement is consistent with the definition of an independent consultant contracted to Owner (item #8 in the 1/3/2006 memo issued by the USGBC, ""Who Can Be the Commissioning Authority""). The selected CxA\'s dual roles are as follows: Automation System Design: One of the CxA\'s roles is to assure that the automation system design for the project maintains the Owner\'s standards, which are complex and ever changing. The Owner has determined that it is far more expedient, and their deliverable more consistent, if the automation systems are designed by a small pool of engineers that remain current with the technologies and procedures that the Owner\'s Energy Management team uses (as opposed to trying to have individual A/Es be educated and brought up to speed on the ever changing requirements of the automation systems that this Owner employs). Among the duties of the automation system designer is the assurance in continuity of Owner standards for hardware, software, and communications. The selected CxA is retained directly by the Owner to perform these functions and is the Owner\'s agent for this building system; there is no contractual affiliation between the selected CxA and the project\'s A/E. The project\'s HVAC systems are designed by the A/E; the A/E bears responsibility for the design, construction, and performance of the HVAC systems. The A/E is responsible for the HVAC systems control sequences of operation and for assuring that their design can perform accordingly. The selected CxA takes the A/E\'s design and sequences and assures that control devices needed to fulfill the sequences are per Owner standards, that automation system architecture is per Owner standards, and that software routines are consistent with design intent and vice-versa. Achieving this element of the automation system design requires interaction and teamwork between the A/E and the selected CxA, but the separation remains of the selected CxA being directly responsible to the Owner for the automation system functionality and the A/E being responsible for system design and performance. Independent Commissioning: The selected CxA is retained directly by the Owner and is the Owner\'s independent agent for HVAC systems commissioning; there is no contractual affiliation with the A/E. That the selected CxA is also involved with the automation systems design enhances the effectiveness of both HVAC commissioning and automation system building management and provides and economy to the Owner in professional services fees. The selected CxA has been performing automation systems design for this Owner since 1986 and has been performing HVAC commissioning services for this Owner since 1992. The dual functions have been executed over this long standing relationship without conflict as the selected CxA is not responsible for HVAC systems design. The selected CxA has no design role in other building systems to be commissioned to satisfy LEED requirements (lighting controls, domestic hot water). Therefore, the basic argument is that the selected CxA\'s allegiance, and contractual relationship, is directly to the Owner for automation system design and commissioning services. There is no contractual affiliation between the selected CxA and the A/E design team; the selected CxA interacts with the A/E performing reviews and coordination. The Owner and design team does not perceive any conflict by the CxA performing automation system design that would exclude them from performing Fundamental or Enhanced (point credit) commissioning. We ask that the USGBC confirm that we properly interpreted the memo regarding who can be the commissioning agent as it applies to our unique situation described above." "EAp1 and EAc3 clearly state that the commissioning agent shall be independent from the work of design and construction. If the CxA is also designing the automation system, than the CxA does not meet the independence requirement of the commissioning prerequisite and credit. The control system should be commissioned and therefore it is important for CxA to be independent of the design of this system. Applicable Internationally." "None" "None" "X" "LEED Interpretation" "2079" "2008-04-23" "New Construction, Schools - New Construction, Commercial Interiors, Core and Shell" "EAp1: Fundamental Commissioning of the Building Energy Systems" "In this CIR, we are asking for a clarification on whether this firm meets the experience requirements for it to provide CxA services on the project described below for its compliance with the LEED prerequisite, which requires that the CxA shall have commissioning authority experience on at least two building projects. The project to be commissioned is a proposed 3,000 Sf (+-) Bath House facility at a Town owner Pool/Park complex in New York. The Bath House building has no HVAC system, except for an exhaust fan system. Its construction will require the demolition of an existing building. Our firm has 49 years of design, construction and startup phase experience on numerous projects having similar or larger managerial and technical complexities required for the Bath House. Our firm has provided construction management (CM) services for various NY State, County and municipal projects in New York. Those services include design review and oversight, LEED review and oversight, constructability reviews and value engineering reviews, prepare and review cost estimates, assuring contractor complies with design intent and construction contract documents, work progress inspection and monitoring, quality assurance and start-up system testing, commissioning and commissioning oversight, post construction monitoring, construction trades employers, etc. Our recent experience includes such services for Suffolk County, New York\'s proposed LEED certified, $15 million, 36,000 SF Police Precinct building; the $35 million, 72,000 SF Trump On The Ocean Catering Facility, at Jones Beach, NY (also pursuing LEED certification); the Town of Hempstead, $5 million Hewlett Point Park Pool Complex; the $35 million, 200,000 SF renovation and addition of the Riverhead, NY Supreme Court building; the $55 million, 260,000 SF DASNY Health Technology Center, in Brentwood, NY; the $25 million, 150,000 SF Skilled Nursing Home Facility, in Yaphank, NY, and the new $140 million Correctional Facility in Yaphank, NY, among others. Our firm also provides engineering and architectural design services. Design services include site, building, energy, HVAC and controls systems, etc. Our staff includes professional Mechanical, Electrical, Civil and Structural Engineers, Registered Architects and LEED Accredited Professionals. Our personnel have extensive experience in energy systems design, installation, performance and operation. We also perform on-site, hands on inspections of the energy systems including start-up, testing balancing, troubleshooting, operation, and maintenance procedures. In this specific case, our firm is not involved in the design or construction management phases of this LEED registered project. As the CxA, our firm will review and verify design and monitor construction and will perform the requirements of the Fundamental Commissioning of the Building Energy Systems." "Assuming your firm provided commissioning services on at least 2 of the projects listed, you qualify to serve as the CxA for the bath house project. Your description indicates that you are not part of the design or construction team, and you list multiple relevant projects, thus the eligibility requirements are satisfied. Applicable Internationally." "None" "None" "X" "LEED Interpretation" "2164" "2008-05-28" "New Construction, Schools - New Construction" "EAp1: Fundamental Commissioning of the Building Energy Systems" "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. Applicable Internationally. " "None" "None" "X" "LEED Interpretation" "2174" "2008-05-28" "New Construction, Schools - New Construction, Commercial Interiors, Core and Shell" "EAp1: Fundamental Commissioning of the Building Energy Systems" "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" "2195" "2008-06-04" "New Construction, Schools - New Construction" "EAp1: Fundamental Commissioning of the Building Energy Systems" "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. Applicable Internationally. " "None" "None" "X" "LEED Interpretation" "2228" "2008-09-30" "New Construction" "EAp1: Fundamental Commissioning of the Building Energy Systems" "Village Green Companies was committed to opening one of the first ""Green"" apartment buildings in Chicago but failed to meet all the LEED requirements for Commissioning. Village Green then retained Sebesta Blomberg, as a 3rd party commissioning firm to achieve LEED compliance. The project has submitted for LEED NC v2.1 certification and has been awarded 26 points. In reviewing the project documentation we find that there was serious effort to comply with the LEED intent but a lack of understanding regarding documentation rigor. The following summarizes our review based on the requirements of the prerequisite: -Commissioning Agent: Shawn Zimny; original CxA and was not responsible for design or construction. -Review the design intent and basis of design documents: the design intent was sparsely documented quantifying only high level goals. -Incorporate commissioning requirements into the construction documents: the construction bid documents did not include a separate section for commissioning but did incorporate commissioning requirements and deliverables throughout the division specific specification sections. -Develop and utilize a commissioning plan: a commissioning plan was developed and contains the process, activities and responsibilities. -Verify installation: the installation verification took place at a high level for conformity and was documented on a systems level log outlining 2 inspections with yes/no compliance. Individual component level was not sub-documented. -Verify functional performance: functional performance results were documented on a systems level log outlining pass/fail per system for 2 trial runs. Step-by-step procedures were not documented. -Verify training: a check-off log for equipment training and education was documented logging training was delivered from each system for controls, operations, adjustments and maintenance. -Verify operations & maintenance documentation: operations & maintenance documentation was delivered to the O&M staff. Completeness of documentation has not been reviewed by us at this time. The following is our proposed course of action to finalize/fulfill the intent of the prerequisite. -Commissioning Agent transition to us, a 3rd party commissioning firm. -Develop an Owner\'s Project Requirements document strengthening the original Design Intent and Basis of Design Documents with a higher level of rigor and application. -Develop and document Installation Verification Checklists for each commissioned system including overall component verification. -Develop and execute prescriptive, step-by-step, Functional Performance Test procedures documenting performance compliance based on the strengthened Owner\'s Project Requirements. -Develop an O&M document checklist and evaluate adequacy of documentation for each system. We will further work with the project team to fill any voids in the manuals and document completion. -Develop a training evaluation matrix and document the O&M staff has received all the training specified. We will further work with the project team to coordinate any outstanding training, if so exists. -Develop and Issue a Commissioning Report including: -Introduction, summary and conclusions -Original Cx Plan -Description of project specification regarding inclusion of commissioning requirements -Executed Installation Verification Checklists -Executed Functional Performance Test Procedures -Executed O&M documentation checklists -Documented training program evaluation matrix with O&M completion sign-off -Commissioning Issues Log (issue, resolution, outstanding items) It is apparent to us based on the number of points awarded, original effort towards commissioning, and retaining a professional commissioning firm that Village Green Companies is committed to sustainability and LEED compliance. The intent of the interpretation request is to validate that the above course of action will demonstrate sufficient compliance with the prerequisite." "The project team is requesting confirmation that their proposal to conduct commissioning activities after project completion will satisfy the requirements of EAp1. Unfortunately, prerequisite compliance cannot be determined through the CIR process. The prerequisite will be awarded or denied during the review process on the basis of the submitted documentation and proposed approach. Applicable Internationally. " "None" "None" "X" "LEED Interpretation" "2389" "2009-01-23" "New Construction, Commercial Interiors, Core and Shell, Schools - New Construction" "EAp1: Fundamental Commissioning of the Building Energy Systems" "Our client is a non-profit trade association which has leased space in a commercial office building in Washington, DC for 35 years. As part of an additional 10-year lease renewal and expansion, their interior space has been undergoing renovation. Upgrades to 124,000 of the 141, 000 square feet that the tenant occupies were completed in 2006 using a green approach. 10,000 square feet is currently being constructed, and 7,000 square feet is currently in design. The tenant occupies approximately 55% of the building in which they are located. Since the renovation began, the association has come to recognize LEED as an important performance benchmark of green building quality. The association is pursuing certification for its space in order to demonstrate the value of LEED CI certification to its employees and to educate its approximately 8000 corporate member organizations nationwide about LEED. The association\'s hope is to certify all 141,000 square feet of the space that they occupy. The association could limit the LEED CI site boundary to the 10,000 square feet that is currently under construction and the 7,000 square feet in which construction has not yet begun, and meet all LEED CI prerequisites and sufficient credit points to certify that portion of their space at a Silver or Gold level. They are interested, however, to undergo the additional effort and expense associated with including the 124,000 square feet of space that was renovated in earlier phase of renovation. We have confirmed that sufficient credit points could be documented for the whole space to be eligible for certification, however, the issue of how the EAp1 Fundamental Building Systems Commissioning prerequisite would need to be addressed. Alternatively we considered working with the association to pursue LEED OM for their entire space, however, LEED OM presents its own set of challenging issues given its current whole building approach and the fact that the association does not have direct control over the base building components or the activities of other building tenants. In order to include the previous phase of interior renovation in the LEED CI site boundary, we propose adapting LEED OM EAc1 requirements for commissioning the energy related systems in the tenant\'s scope whereby we would: 1. Develop a retro-commissioning, recommissioning or ongoing commissioning plan for the tenant\'s scope energy related systems, including the heating, ventilating, air conditioning and refrigeration (HVAC&R) systems and associated controls, lighting controls, including daylighting, domestic hot water systems, and renewable energy systems. 2. Conduct the investigation and analysis phase. Document the breakdown of energy use in the tenant space. 3. List the operating problems that affect occupants\' comfort and energy use, and develop potential operational changes that will solve them. 4. List the identified capital improvements that will provide cost-effective energy savings and document the cost-benefit analysis associated with each. Please let us know if this would be an acceptable alternate approach to meeting the LEED CI EAp1 Fundamental Commissioning prerequisite for the phases of the renovation already completed. The current and future phases of the project would follow the standard LEED CI EAp1 requirements." "The applicant is requesting approval for commissioning of spaces that have both begun construction and have completed the construction phase. Commissioning for portions of the building that have begun construction (i.e., 10,000 square feet) are eligible to achieve certification for EAp1 per a LEED-NC v2.2 CIR dated 9/18/2007 and a LEED-NC v2.1 CIR dated 2/5/2004. Projects that have already been completed, however, are ineligible to achieve LEED certification because the fundamental commissioning requirements in EAp1 were not addressed during the project design or construction phase. For portions of the building that have not been installed, the project team should develop Owners Project Requirements (OPR) and Basis of Design (BOD) documents as outlined in the LEED-CI v2.0 Reference Guide. Refer the CIR dated 9/18/2007 for additional information. All of the additional commissioning requirements outlined in the LEED-CI v2.0 Reference Guide must be satisfied. For portions of the building for which construction has been partially completed, the CxA must review not only the construction/installation of the commissioned systems but also whether the systems satisfy the design intent. Refer to the CIR dated 2/5/2004 for additional information regarding commissioning of partially installed systems and commissioning requirements. While the project team should be commended for the sustainable design practices implemented for portions of the building that have completed construction, these spaces are not eligible to achieve certification for LEED-CI. As identified in the request above, the project team should consider certifying completed portions of the building using LEED-EB. The owner may be able to convince the building association and/or other tenants to consider certifying the entire building using LEED-EB. Applicable Internationally." "2401" "None" "X" "LEED Interpretation" "2401" "2009-02-09" "New Construction, Commercial Interiors, Core and Shell, Schools - New Construction" "EAp1: Fundamental Commissioning of the Building Energy Systems" "The purpose of this CIR is to request an alternate compliance path for fundamental systems commissioning for the major renovation of a 10,000 sq. ft., Texas office building which is nearing the end of construction (the tenants have moved in on a temporary occupancy certificate). It has been the intent of the project team from design onset to submit the project for LEED Certification. Accordingly, substantial efforts and monies have been committed to strengthening the building envelope (from an EA standpoint), to replacing the HVAC systems with high-efficiency equipment, to installing measurement and verification equipment and for several other sustainable measures outside of the EA category. Unfortunately, due to the inexperience of some of the team members and a fast-track construction schedule, the commissioning process did not occur through the design and early construction as outlined in the reference guide. The team asks the USGBC to review the alternate commissioning strategy outlined below and to advise on whether this approach fully meets the requirements of EA Prerequisite 1: 1. Designate an individual as the CxA: The Owner has designated an employee of the MEP design firm as the CxA. The selected individual for this role is part of a specialized commissioning group within the firm and has not been involved with the design or construction of the project. He has served as the commissioning agent for several projects of similar scope and technical complexity. 2. CxA shall review Owner\'s Project Requirements and Basis of Design: The Design Team and Owner will prepare the Owner\'s Project Requirements to include Owner and User Requirements, Environmental and Sustainability Goals, Energy Efficiency Goals, Indoor Environmental Quality Requirements, Equipment and System Expectations, and Building Occupant and O & M Personnel Requirements. The Design Team will prepare a Basis of Design narrative which explains the design of the HVAC&R systems, the project lighting, the domestic hot water system, associated controls, and any additional systems requiring commissioning. The CxA will review and comment on these documents and the documents will be updated by the owner and design team respectively. 3. Develop and Incorporate commissioning requirements into the construction documents: The CxA will develop commissioning specifications which will be incorporated into the construction documents via supplemental instructions to the construction team and will become part of the construction documents. 4. Develop and Implement commissioning plan: The CxA will develop the commissioning plan which will include the Commissioning Program Overview, the Commissioning Team, and the Description of the Commissioning Process Activities. The commissioning plan will take into account that the equipment has already been installed and started up. 5. Verify Installation and performance of systems to be commissioned and complete a commissioning report: CxA will still follow all credit requirements, including pre-functional and functional testing procedures even though equipment has already been started. Deficiencies will be reported, and contractors will correct any deficiencies found during commissioning activities via supplemental instructions or under warranty. CxA will complete a summary report." "The project team is proposing a commissioning process to meet the requirements of this prerequisite, where the project team engages the commissioning authority in the late stages of construction after tenant occupation. The proposed process is not acceptable. The key steps of the commissioning process do not deliver the intended value if performed outside of the normal design and construction schedule. The USGBC has devised the LEED for Existing Building Operation and Maintenance Rating System for cases such as this and the project team is encouraged to consider that Rating System for this building." "2389" "None" "LEED Interpretation" "2424" "2009-02-09" "New Construction, Commercial Interiors, Core and Shell, Schools - New Construction" "EAp1: Fundamental Commissioning of the Building Energy Systems" "The purpose of this credit interpretation request is to confirm that the qualifications of the person the Owner has selected to complete Fundamental Commissioning for the project are acceptable. The project is a 150,000 SF speculative office building, with the Owner serving as the General Contractor for construction.. The project will complete the Fundamental Commissioning requirements (EAp1) but will not pursue Enhanced Commissioning (EA 3). The Owner has selected an individual employed by an independent company (not employed by the Owner/ General Contractor\'s firm) to perform commissioning for the building. The requirements specified in EA p1 for the commissioning agent state that ""the CxA shall have documented commissioning authority experience in at least two projects"". The selected commissioning agent has not commissioned a LEED project before but has served on numerous existing building projects overseeing the replacement of major system. He has also worked with at least two new building projects, where he was responsible for oversight during the installations of building systems. His responsibilities included: - review of plans before initial construction - meetings with sub-contractors to clarify requirements - attending relevant construction meetings - site visits for start-up of all major mechanical components - reviewing initial start-ups and making recommendations to ensure systems were working as specified - reviewing final test results and reports and making recommendations to avoid foreseeable problems suggested by the reports - coordinating with contractors and building engineers to make all warranty and non-warrantee repairs. Documentation prepared for these projects is comprised of a report outlining: - design phase drawing comments for major building systems - results of site visits to confirm that suggested changes were included in construction to witness system start-ups - a chronicle of post-construction follow-up which included witnessing of building system training for building staff. Please confirm that this individual\'s project experience is sufficient to meet the requirements for him to serve as the commissioning agent for EAp1." "The applicant is requesting confirmation that the selected commissioning authority (CxA) satisfies the commissioning qualifications outlined in the LEED-CS v2.0 Reference Guide. The CIR states that the selected commissioning agent is independent of the project\'s design and construction management teams and has documented CxA experience on several projects. The selected CxA is not required to have commissioning experience specifically related to LEED projects and, therefore, appears to meet the qualifications outlined in the reference guide. However, sufficient documentation must demonstrate commissioning of the two non-LEED projects through issues, logs and/or Cx checklists for all energy systems. Please note that the favorable ruling of this CIR does not guarantee credit acceptance during a review. Applicable Internationally. " "None" "None" "X" "LEED Interpretation" "2633" "2009-07-10" "New Construction, Commercial Interiors, Core and Shell, Schools - New Construction" "EAp1: Fundamental Commissioning of the Building Energy Systems" "We are requesting a CIR for a commercial tenant build out in an existing space. The owner decided to go forward with LEED certification after original design drawings were in place. An independent Cx Authority was brought on board after construction documents were issued but before construction commenced, and was in contact with all necessary trades. A commissioning plan was generated prior to commissioning activities. The CxA worked with the project team throughout the construction process and generated a full Cx report. This project utilized existing mechanical equipment which serves the existing spaces. All information regarding this is outlined in the BOD. The Commissioning Agent reviewed all documents and incorporated these guidelines in their plan and final report. The built systems have had a thorough and unbiased review not just of how they were built, but of how they were designed. All prerequisite requirements have been met with the exception of the specifications being included in the original contract documents. All trades cooperated and worked with the Cx. Keeping with the intent of this prerequisite, all systems were adequately commissioned. The CxA has verified that the project\'s energy-related systems are installed, calibrated, and perform as intended, and has verified that all of the required systems are calibrated correctly and satisfy the owner\'s project requirements (OPR) and BOD." "The project team is requesting that the project meets the requirements for Fundamental Commissioning despite the exclusion of commission specifications being included in the original contract documents. For alternate compliance, documentation should be provided showing that the commissioning specifications were later issued and that they will be enforced by the owner and accepted by the contractor as part of the scope of work than the request is approved. Applicable Internationally." "5049, 5277" "None" "X" "LEED Interpretation" "5049" "2007-05-14" "New Construction" "EAp1: Fundamental Commissioning of the Building Energy Systems" "Our project is a warehouse distribution center that has refrigerated areas for food storage. We plan to commission the base building systems following the LEED-NC fundamental commissioning EAp1 requirements. Excluded from the LEED-NC EAp1 commissioning program is testing food refrigeration in associated storage areas and testing activities for temperature distribution of associated storage areas while filled with product, storage of lots, density, stability, etc. as determined by the user, product and regulatory requirements. We consider the refrigeration of the food storage areas as process loads and are excluding the refrigeration equipment for the food storage from EAp1 requirement as process equipment is typically excluded from other credits such as EAc1. However, we will be commissioning the related condensing units to verify that they maintain cooling in associated storage areas while empty. Please verify that our interpretation of this credit is correct and may proceed accordingly." "No, refrigeration systems may not be excluded from the scope of commissioning under EAp1. Page 151 of the LEED-NC v2.2 Reference Guide identifies that commissioning process activities shall be completed for refrigeration systems. Applicable Internationally. " "2633, 5277" "None" "X" "LEED Interpretation" "5075" "2007-09-18" "New Construction, Schools - New Construction, Core and Shell" "EAp1: Fundamental Commissioning of the Building Energy Systems" "The owner is utilizing design/ build firms for the mechanical and electrical systems on this project. The mechanical firm has in-house design, construction, automation and commissioning services. The mechanical firm has a very clear separation of these four functions with separate management over each, so our clarification is to confirm that the mechanical firm can provide commissioning services for this prerequisite (we are NOT asking for EA3, Enhanced Commissioning). Each of these four functions have indepenent managers within the firm who answer directly to the president. The CxA for the mechanical firm will not be the Engineer-of-Record, nor will he have any construction or design responsibilities, other than as required in the CxA role (to review and verify design and construction processes, submittals and installations). His sole role and responsibility will be the proper commissioning of the project such that it meets the Owner\'s Project Requirements, the Basis of Design and the overall intent and expectation of the Owner. Our CxA meets all of the requirements for this prerequisite and has been approved by the Owner and Architect to provide this service. As described in the prerequisite\'s section, our CxA: 1. has experience on multiple projects of similar managerial and technical complexity. 2. will be independent of the design and construction teams as described above. 3. will not have responsibility for design (not the Engineer-of-Record) or for construction. 4. will report his results, findings and recommendations directly to the Owner Is this structure and our selected CxA acceptable to meet the requirement as defined in the prerequisite?" "The project team is inquiring if a member of the mechanical design/build firm, who is not associated with the actual design or construction of the project, can be used as the commissioning agent under the requirements of the Fundamental Commissioning prerequisite (EAp1). As noted in the in the prerequisite language and in a document posted on the USGBC website, entitled ""Who Can Be the Commissioning Authority"" (https://www.usgbc.org/ShowFile.aspx?DocumentID=1262), the individual serving as the Commissioning Authority may be an employee or subcontractor of the A/E and/or Construction firm(s) provided they have no project responsibilities other than commissioning. As such, the individual described in the above inquiry is acceptable to meet the requirement of the prerequisite. Applicable Internationally. " "None" "None" "X" "LEED Interpretation" "5125" "2008-06-27" "New Construction, Commercial Interiors, Core and Shell" "EAp1: Fundamental Commissioning of the Building Energy Systems" "This CIR is seeking clarification on the scope of Systems Performance Testing required for Commissioning. The project is a 300,000 square foot residential building located in New York City. As part of commissioning, the project intends to commission the HVAC and refrigeration systems, lighting and daylighting controls and domestic hot water systems as per the credit requirements of EA prerequisite 1 and EA credit 3. All major equipment in the building will be commissioned such as boilers, hot water pumps, roof top units (DX), supply and exhaust fans. However, for cooling, the residences use Packaged Terminal Air Conditioners (PTAC). The Project is seeking guidance on the representative sampling of PTAC for the systems performance testing. The project is intending to test 10% (industry standard) of the PTACs in the building for each size (7500 Btu, 9000 Btu, 12000 Btu etc.) subject to a minimum count of 10. For example, if there are 27 units of Type A, and 120 units of Type B and 400 units of Type C, the functional testing will be done for: 10 qty - Type A 12 qty - Type B 40 qty - Type C If failures are found in a group, in addition to the faulty units, an additional sample is tested. Is this approach of a 1 in 10 representative sampling acceptable to USGBC?" "Yes, in this specific case, 10% of PTAC systems subject to a minimum count of 10 are acceptable representative sampling for the systems performance testing. However, in a large multi-family residential project, the operation of a PTAC system may be influenced by the location/orientation of the residential unit. Since, it is being proposed that only representative samples would be tested, therefore, the project team should be careful in the selection of the representative samples and provide sufficient documentation when submitting for LEED review." "None" "None" "LEED Interpretation" "5130" "2008-07-08" "New Construction, Schools - New Construction" "EAp1: Fundamental Commissioning of the Building Energy Systems" "The purpose of this CIR is to seek confirmation that the team structure planned for this project meets the technical requirements of this prerequisite. The Sarasota Police Headquarters project consists of new construction in excess of 50,000s.f. Project Development, Inc. (PDI) is the Owners Representative for Sarasota Police Headquarters project. PDI has an agreement with Architects Design Group, Inc (ADG) to provide A/E services. TLC Engineering for Architecture (TLC), Fort Myers office was contracted by ADG as a sub-consultant to provide HVAC, electrical, plumbing, fire protection and technology systems design. TLC is based in Orlando, Florida with branch offices in nine locations; seven in the state of Florida as well as offices in Nashville, Tennessee and Dallas, Texas. PDI has contracted TLC, Fort Myers directly to provide LEED Administration and Sustainable Guidance Services as well as Commissioning Services. The Commissioning Services are limited to those necessary to achieve E&A, prerequisite 1. TLC Team member(s) involved in both LEED Administration and Commissioning will not be involved in the design for this project. The CxA performing tasks required will be a credentialed CxA from an office other than TLC\'s Fort Myers office. The CxA will have NO project responsibilities other than commissioning. Referring to USGBC document ""Who Can Be the Commissioning Authority"", 01/03/06 LEED 2.2 Cx Subcommittee; we understand that the project team structure described herein meets the definition of a disinterested employee as defined by LEED 2.2 Cx Subcommittee and therefore meets the intent and requirements of this credit. Do you concur?" "The project team is requesting clarification on the team structure described above meeting the definition of a disinterested employee as defined by the USGBC document ""Who Can Be the Commissioning Authority"", 01/03/06 LEED 2.2 Cx Subcommittee. Given the information provided above regarding the project team structure and the scope of commissioning activities, the Commissioning Authority would indeed meet the definition of a disinterested employee of the A/E, and can act as Commissioning Authority for EA Prerequisite 1 as outlined in the referenced document. Applicable Internationally." "None" "None" "X" "LEED Interpretation" "5277" "2007-09-18" "New Construction, Commercial Interiors, Core and Shell, Schools - New Construction" "EAp1: Fundamental Commissioning of the Building Energy Systems" "This Seattle, Washington project is a residential, fast-track high-rise and is currently in the early stages of construction. While the project team recognizes that the decision to pursue LEED Certification would have been more appropriately made at the commencement of design, the team is proud of the many green features of the project and has chosen to seek LEED Certification at this time. Because the fundamental building systems commissioning process will begin after construction has started, the project team is suggesting the following alternate compliance path for the prerequisite. The team asks the USGBC to review the commissioning strategy outlined below and to advise on whether this approach fully meets the requirements of EA Prerequisite 1: 1. Designate an individual as the CxA: The Owner has designated an employee of the HVAC, design-build sub-contractor as the CxA. The selected individual for this role has not been involved with the design or construction of the project. He has served as the commissioning agent for several projects of similar scope and technical complexity and is a certified Testing, Adjusting and Balancing Bureau (TABB) Supervisor. 2. CxA shall review Owner\'s Project Requirements and Basis of Design: The Design Team and Owner will prepare the Owner\'s Project Requirements to include Owner and User Requirements, Environmental and Sustainability Goals, Energy Efficiency Goals, Indoor Environmental Quality Requirements, Equipment and System Expectations, and Building Occupant and O & M Personnel Requirements. The Design Team will prepare a Basis of Design narrative which explains the design of the HVAC&R systems, the project lighting, the domestic hot water system, associated controls, and any additional systems requiring commissioning. The CxA will review and comment on these documents and the documents will be updated by the owner and design team respectively. 3. Develop and incorporate commissioning requirements into the construction documents: The construction drawings and specifications include the commissioning requirements of the Seattle Energy Code: a Commissioning Plan, Systems Testing and Balancing, Equipment Functional Performance Testing, Controls Functional Performance Testing, a Preliminary Commissioning Report, Post Construction Documentation, and a Final Commissioning Report. The CxA will review the commissioning requirements outlined in the construction documents and if he finds that enhancements or additions are required, these changes will be issued as supplemental instructions to the construction team and will become part of the construction documents. 4. Develop and implement commissioning plan: The CxA will review the commissioning plan outlined in the construction documents and will use this as the basis for his project commissioning plan which will include the Commissioning Program Overview, the Commissioning Team, and the Description of the Commissioning Process Activities. 5. Verify installation and performance of systems to be commissioned and complete a commissioning report: Because the systems have not been installed, the CxA will follow the credit requirements outlined in the LEED-NC v2.2 reference guide for these two steps in the commissioning process." "The inquiry is asking if a project that is under a ""fast track"" schedule and is in the early stages of construction can still comply with the requirements for fundamental commissioning. The inquiry states that since the project is already under construction a modified plan will be implemented. 1. Yes, the individual described in the above inquiry is acceptable to meet the requirement of the prerequisite, as noted in the prerequisite language and in the document posted on the USGBC website, entitled ""Who Can Be the Commissioning Authority"" (https://www.usgbc.org/ShowFile.aspx?DocumentID=1262). 2. The inquiry indicates that, although the OPR and BOD documentation have not been developed, the design team and owner will prepare these documents for review and comment by the CxA as required. The CxA will review these documents and will issue recommendations for enhancements and/or modifications to the design. If these design modifications are accepted by the owner, the design team will issue supplemental instruction to the project team that will become a part of the construction documents. Although the preparation and review of the OPR and BOD documents is intended to be handled during the design phase when modifications to the design can reasonably be made, the project team has outlined a plan, to incorporate any approved system modifications and/or enhancements into the project as changes to the construction process, that appears to meet the intent of the prerequisite. 3. The inquiry indicates that the basic fundamental commissioning tasks were incorporated into the construction documents prior to construction. The CxA will review these tasks and will provide the design team with any modifications required to comply with this prerequisite. Provided the team can substantiate that the appropriate tasks were included in the amended construction documents, and that the noted tasks were carried out, it appears that this portion of the prerequisite\'s intent will be satisfied. 4. The inquiry indicates that a commissioning plan was incorporated into the construction documents prior to construction. The CxA will review the plan and will provide any modifications required to comply with this prerequisite. Provided the team can substantiate that the commissioning plan includes all of the required prerequisite task elements, this portion of the prerequisite\'s intent and requirements will be satisfied 5. The inquiry indicates that the installation and performance of the installed systems to be commissioned will be verified by the CxA. The inquiry also states that the required commissioning report will be completed. The overall plan, as indicated in the above inquiry, appears to meet the intent and requirements of the prerequisite. As prerequisites cannot be awarded in the CIR process, the project team will need to provide appropriate documentation in the project\'s submittal package to confirm that the stated tasks and elements have been successfully incorporated and implemented. Applicable Internationally. " "2633, 5049" "None" "X"