1 / 20

Building Commissioning: Cx 101

Building Commissioning: Cx 101. Brock Graham, Gilbane Building Co. Michael Gannon, BVH Integrated Services November 15, 2010. Building Commissioning… Where did it come from ?. ASHRAE ? LEED ? Federal Gov’t ? USGBC ? ASME/ANSI ?. The United States Navy ….

lexiss
Download Presentation

Building Commissioning: Cx 101

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Building Commissioning: Cx 101 Brock Graham, Gilbane Building Co. Michael Gannon, BVH Integrated Services November 15, 2010

  2. Building Commissioning… Where did it come from ? ASHRAE ? LEED ? Federal Gov’t ? USGBC ? ASME/ANSI ?

  3. The United States Navy … U.S.S. Theodore Roosevelt (CVN 71) Commissioned October 1986

  4. Building Commissioning… What is it? Retro-commissioning (existing buildings) Re-commissioning (existing buildings) Commissioning (new construction)

  5. Building Commissioning… What is it? The short answer: Building commissioning (new construction) is construction quality assurance

  6. Building Commissioning… Different ‘levels’ of Cx (and cost)… Minimal: Start-up & troubleshooting Typical: LEED Cx on Steroids: HPB & ASHRAE Guideline 0

  7. Commissioning: Why do it? • High performance building standards require…buildings to perform. • Commissioning provides the assurance that buildings are built and perform as intended.

  8. Commissioning Process Overview: • Design Phase • Construction Phase • Acceptance Phase • Occupancy Phase

  9. Design Phase: • Review or assist in development of • OPR and BOD • Peer review • Sometimes at many stages (SD, DD, CDs) • Initial schedule development (CM) • Commissioning Specification • Very important!

  10. Construction Phase: • Submittal reviews • Develop Cx Plan • Kick-off with installing contractors • Installation observation • Contractors fill out pre-functional checklists

  11. Construction Phase (cont.): • Further develop schedule with GC / CM • Pre-balancing meeting • Proactive Field Quality Control • Installation observation • Witness some testing • O&Ms submitted and reviewed

  12. Construction Phase (cont.): • Prefunctional checklists – developed by CxA, filled out by contractors • Not to be confused with functional test sheets • Manufacturer’s start-up of equipment

  13. Acceptance Phase: • Functional testing begins (when systems are complete!) • A ‘test case’ system can be commissioned to let contractors know what to expect • This should be coordinated and witnessed by CxA, not installing contractors. • Deficiencies recorded and tracked by CxA

  14. Acceptance Phase (cont.): • Contractors correct deficiencies and notify CxA of correction • CxA retests and records results • Contractor-provided Owner training is organized and verified • Validation (if called for) follows functional testing

  15. Occupancy Phase: • Functional testing continues (realistically) • CxA develops Systems Training Manual (aka the Recommissioning Manual) • Owner personnel trained by CxA • Final commissioning report produced

  16. Occupancy Phase: • Deferred (seasonal) testing • End-of-Warranty Review • Post-occupancy performance verification • Needs to be addressed in design phase (e.g. are enough ATC points and / or energy meters specified to capture all usage)

  17. Commissioning Scoping • Identify Cx Scope clearly • Typical systems include: • All HVAC (some sampling possible) • Plumbing (DHW, CA, Pumps, etc) • Electrical (lighting controls, E-power and E-lighting, etc) • Other systems: • Fire alarm, fire protection • Security, data, PA, envelope, elevators…

  18. Commissioning Scoping • Peer Reviews • Early docs (SD, DD) don’t have as much to review • Allow time in schedule for reviews and doc updates by EOR

  19. Commissioning Scoping • How much should you expect to pay? • 0.5% to 3% of total construction cost • 3 to 5% of total operating cost (retro) to 5% of total construction cost (validation) • 2 to 3% of mechanical systems cost + 1 to 2% of electrical systems cost • It Depends on the CxA scope, as defined by the Owner

  20. Questions?

More Related