The 5th Annual Conference on Total Building Commissioning 2009

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The 5th Annual Conference onTotal Building
Commissioning2009
Paul McCown, PE, CxA, LEED AP, CEM SSRCx, LLC

• Commissioning Changes in LEED 2009

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Morning Warm-up

• TRUE/FALSE?
• According to ASHRAE, energy modeling is meant to
  predict the energy use of a building?
• False

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Morning Warm-up

• True/False?
• The typical model of operating buildings is
  sustainable. Investments (from energy companies,
  or otherwise) in this model will be sustained.

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Morning Warm-up

• True/False?
• Commissioning filled a gap in the design and
  construction process by which an operable
  building is turned over to an owner.

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Morning Warm-up

• True/False?
• A gap still exists between what a new building
  controls system is capable of doing versus what
  is utilized.

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LEED 2009

• When?
• What is new and different?
• What does it mean to you Cx Agent?

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USGBCs Mission
Promote the design and construction of buildings
that are environmentally responsible, profitable,
and healthy places to live, work and learn.
The organizations activities Integrate building
industry sectors Lead market transformation Educat
e owners and practitioners
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New and Different
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New and Different
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New and Different

• Prerequisites and credits in the LEED 2009
  addresses 7 topics
• Sustainable Sites (SS)
• Water Efficiency (WE)
• Energy and Atmosphere (EA)
• Materials and Resources (MR)
• Indoor Environmental Quality (IEQ)
• Innovation in Design (ID)
• Regional Priority (RP)

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New and Different

• LEED 2009 certifications are awarded according to
  the following scale
• Certified 4049 points
• Silver 5059 points
• Gold 6079 points
• Platinum 80 points and above
• Out of 100 total points (with 10 bonus points
  available)

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New and Different

• Harmonized Bookshelf Approach
• Changes to Credit Weightings
• Regionalization
• LEED Online
• Green Building Certification Institute (GBCI)

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What does it mean to you?

• LEED-NC v2.2 Commissioning
• LEED 2009 NC - Commissioning
• LEED-EB v2.0 Retro-Commissioning
• LEED 2009 EB

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LEED-NC Commissioning

• Intent Verify that the building energy systems
  are installed, calibrated and perform according
  to the owners project requirements (OPR), basis
  of design (BOD), and construction documents.
• HVACR systems and controls
• Lighting and daylighting controls
• Domestic hot water systems
• Renewable energy systems (wind, solar, etc.)

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LEED-NC Commissioning Changes for 2009

• 2 points for EA Credit 3 Enhanced Commissioning
  instead of 1 point
• Innovation point possible for Envelope
  Commissioning

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LEED-NC Commissioning Changes for 2009

• The same CxA overseeing the enhanced
  commissioning tasks must also oversee the
  fundamental commissioning tasks. Table 2, note
  4, pg. 221.
• See also Who Can Be the Commissioning
  Authority? 01/03/06 LEED 2.2 Commissioning
  Subcommittee, posted under LEED Reference
  Documents, http//www.usgbc.org

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LEED-EB Retro-Cx (old version)

• Intent Verify that fundamental building systems
  and assemblies are performing as intended to meet
  current needs and sustainability requirements.
• Building Operation Plan means for execution

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LEED-EB Retro-Cx

• Requirements Verify installation, calibration,
  and operation for functionality and efficiency of
  the following
• Heating, cooling, and humidity control
• Lighting
• Safety
• Controls

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LEED-EB Retro-Cx

• Building Operation Plan components
• Use occupancy and schedule by space type
• Static system requirements
• Functional system requirements

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LEED-EB Retro-Cx

• Performance Testing Plan (Cx Plan) components
• Part A - Inspection
• Part B Functional Verification (data logging)

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LEED-EB Retro-Cx

• Building Envelope
• HVAC
• Water
• Lighting
• Controls

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LEED 2009 for Existing Buildings Operations
Maintenance

• LEED-EB for OM (short life-span)
• LEED 2009 for EB OM
• EA Prerequisite 1 Energy Efficiency Best
  Management Practices Planning, Documentation,
  and Opportunity Assessment
• EA Credit 2.1 Existing Building Commissioning
  Investigation and Analysis
• EA Credit 2.2 Existing Building Commissioning -
  Implementation

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LEED Green Building Operations and Maintenance
2009

• EA Credit 2.3 Existing Building Commissioning
  Ongoing Commissioning

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EA Prerequisite 1 Energy Efficiency Best
Management Practices

• Document sequence of operations
• Develop a Building Operations Plan
• Occupancy Schedule
• Equipment Run-Time Schedule
• Design setpoints for HVAC equipment
• Design lighting levels throughout the building
• Validate that the BOP is met during performance
  period

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EA Prerequisite 1 Energy Efficiency Best
Management Practices

• Develop a systems narrative for mechanical and
  electrical systems
• Create a narrative of the preventative
  maintenance plan with scheduled maintenance
• Conduct an ASHRAE Level I walk-through assessment
• 2007 ASHRAE Handbook HVAC Applications
• ASHRAE Procedures of Commercial Building Energy
  Audits

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EA Credit 2.1 Existing Building Cx
Investigation and Analysis

• Option 1. Commissioning Process
• Develop RCx Plan
• Implement RCx Plan
• Document breakdown of energy use
• List operating problems and potential solutions
• Identify capital improvements with cost-benefit
  analysis

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EA Credit 2.1 Existing Building Cx
Investigation and Analysis

• Option 2. ASHRAE Level II Energy Audit
• Conduct an energy audit
• Implement RCx Plan
• Document breakdown of energy use
• Perform savings and cost analysis of all
  practical measures
• Identify capital improvements with cost-benefit
  analysis

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EA Credit 2.2 Existing Building Commissioning -
Implementation

• Implement no- or low-cost operational
  improvements.
• Create a capital plan for major upgrades
• Provide training
• Demonstrate financial costs and benefits of
  implemented measures
• Update BOP to reflect changes

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EA Credit 2.3 Existing Building Commissioning
Ongoing Cx

• Implement an ongoing Cx program that addresses
• Planning, testing, corrective action, on-going
  measurement
• Document ongoing commissioning cycle (24 months
  or less)
• Complete ½ of the scope prior to submission
• Update BOP or systems narrative as necessary

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LEED 2009 for EB OM - Implementation

• Performance Period
• 3 consecutive months minimum most credits
• 1 year minimum EA Prereq 2 and Credit 1
• Not more than 24 months any credit
• Terminate within 1 week all credits
• Pay attention to detail
• Tie-in with other LEED Credits
• All WE Prerequisites and Credits
• All EA Prerequisites and Credits
• IEQ Prereq 1, Credits 1.x, 2.x

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Questions and Answers Thank You!