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2014 Commissioning Energy Conference Las Vegas, NV Derek De Jesús, CxA, LEED AP Jeff Jameson, PE.

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Presentation on theme: "2014 Commissioning Energy Conference Las Vegas, NV Derek De Jesús, CxA, LEED AP Jeff Jameson, PE."— Presentation transcript:

1 2014 Commissioning Energy Conference Las Vegas, NV Derek De Jesús, CxA, LEED AP Jeff Jameson, PE

2  Identify potential conflicts between the Commissioning Agent and the design/build team.  Identify the process implemented, scope required, and the value added for the Owner.  Highlight the challenges encountered and modifications to the Commissioning process that occurred in order to achieve the project goals.  ASHRAE 90.4P review

3 1 – Emerson Network Power (http://www.emersonnetworkpower.com/en- US/About/NewsRoom/Pages/2011DataCenterState.aspx)http://www.emersonnetworkpower.com/en- US/About/NewsRoom/Pages/2011DataCenterState.aspx 2 – Jonathan Koomey, July 2011, http://www.koomey.com/post/8323374335http://www.koomey.com/post/8323374335 3 – Data Center Knowledge, April 2012, http://www.datacenterknowledge.com/archives/2012/04/25/6-questions-for-your- next-data-center-provider/ http://www.datacenterknowledge.com/archives/2012/04/25/6-questions-for-your- next-data-center-provider/ 4 - ComputerWorld, January 2010, http://www.computerworld.com/s/article/9144466/Data_center_density_hits_the_w all http://www.computerworld.com/s/article/9144466/Data_center_density_hits_the_w all How many data centers exist? – 2011 – 509,147 1 Electricity Consumption – Doubled from 2000 to 2005 2 – Increased 56% from 2005 and 2010 2 – Range 100W to 400W /sq ft 3 Operating temperatures 4 – 2004 – 72 deg F – 2008 – 81 deg F

4  ACG Process but Speak up and be heard  Integrate Commissioning early and often  Expect the same project goals  PUE (Power Usage Effectiveness)  CFD (Computational Fluid Dynamics)  OPR (Owner’s Project Requirements)  Tier rating  More meetings; site attention

5  Contracting – Owner or DB/C?  OPR, BOD developed?  Blended phases!  Fast paced…ambiguous schedule  Reduced documentation trail

6  Improved access to team and owner  Eager and attentive installing contractors  Cooperation  Identifying gaps, supporting the team!

7  Design reviews  How many and when?  Comment responses  Submittal reviews  Approved unless otherwise stated  Schedule Integration PFC Acceptance Startup BAS Pt-PtTAB FPT

8  Expand the systems to be Commissioned  Grounding, lightning protection  Life safety systems VESDA Pre-Action  Energy management systems  Interface(s) to BAS  Reliability, stability for equipment operations

9  Electrical testing support  Witness and document NETA testing  Support the scheduling of these tests  Test equipment  Data logging  Trending  IR Scanning  Load banking  Beyond vendor startup PDU Testing and Trending

10  57,509 sq ft renovation  6 Pods  4 Pods built out; 2 for future  6MW of electrical power  N+1 design for all systems  DB/C = Owner

11  Brought on AFTER final design  Still performed a design review  Brought on AFTER equipment had started getting delivered  Still performed a submittal review  Immediate ramp up  Estimated schedule to turnover: 6 months  Vague scheduling

12  Reviewing documents AND developing documents at the same time  Addressing design concerns  Electrical test witnessing not in Cx scope  Schedule coordination for startup  No one had Cx in budget, but it was a data center…

13  B phase CT was broke from factory  Testing should have found it  Caused breaker to trip at 75% load

14  Weather delays  Existing building conditions  Leaking roof  Strike delays  No O&M staff on-board during project  No training  No witnessing of testing Inadequate service ground

15  Two SMARDT 200-ton Oil free centrifugal chillers, R-134a, 45° CHW, 400 gpm  Each chiller with dual (100-ton each) VFD compressors  Evaporative Condenser with spray pump  Economizer pump package  Dedicated chiller primary pumps  Additional spare in case of emergency replacement  Two VFD secondary pumps  Sized for future data center expansion  Chilled water load monitoring (BTU meter)  Package system controller

16  Operational benefits  Secondary pump speed control set up to maintain critical branch temperature (or pressure)  Reliability  The system has safety modes of operation to maintain continuous operation (sump dump, emergency sump heating, react to temperature control problems, emergency operation, stand-alone operation, etc.)

17  Year round consistent, cooling capability  High efficiency using the evaporative condenser-  Dry condenser operation for low outside air temperature (<40° adj.) operation  Wet condenser operation for warmer OAT (>45° (adj.) operation  Monitoring of system energy consumption

18  Spent more time with contractors completing the PFCs than just reviewing  Cx meetings became scheduling coordination meetings  Cx documents proved readiness  Maintained 3 levels of testing to prove acceptance  FPTs  ISTs  ISOTs

19  Systems outside of Scope  Do what you can when you have the time  Show the value, even if its free  Be reasonable  Greatest single value for electrical Cx….  Advocate for primary current injection testing  Witness the testing  Document the results  Set the breakers per the FINAL Coordination Study

20  Energy Standard for Data Centers and Telecommunications Buildings  First Advisory Public Review  November 2013  Comments are still in review

21  4.2 – Compliance  Either use 90.4P or 90.1  4.2.2 – Compliance Documentation  Many of the requirements the CxA can support Labeling of equipment, O&M, Inspections

22  4.2.4 – Inspections  Requires AHJ to inspect wall insulation after the insulation and vapor retarder are in place but before concealment roof/ceiling insulation after roof/insulation is in place but before concealment slab/foundation wall after slab/foundation insulation is in place but before concealment fenestration after all glazing materials are in place continuous air barrier after installation but before concealment mechanical systems and equipment and insulation after installation but before concealment electrical equipment and systems after installation but before concealment

23  Section 5 Building Envelope  No methods or standards except to comply with 90.1

24  6.4.1 – PUE  Only provides Mechanical PUE  Defined by cities yet some major metro areas are missing 1 – 42U, 2014, http://www.42u.com/measurement/pue-dcie.htm#What-is-PUEhttp://www.42u.com/measurement/pue-dcie.htm#What-is-PUE 2 – ASHRAE 90.4P, Page 29, 2013 1 2

25  Summary  No specific mention of Commissioning  No mention of testing to prove energy consumption  No mention of any Measurement & Verification  Nothing with regards to improving PUE rating over time Its all based on Day 0 performance

26  Engage in a discussion to clarify and define expectation upfront  Advocate for Electrical Cx beyond “standard” services  Understand the potential of 90.4P

27

28 Derek De Jesús National Commissioning Manager KJWW Engineering 312-931-3703 dejesusdw@kjww.com Jeff Jameson Mechanical Commissioning Agent KJWW Engineering jamesonjj@kjww.com


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