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Engineered Systems Webinar
On-Site Critical Power Generation for the Data Center & Other Critical Facilities April 15, 2015 at 11 AM ET

Rebecca Thatcher Ellis, P.E.

Ellis is president of Questions & Solutions Engineering, Inc. (Chaska, MN).

ARTICLES

COMMISSIONING

Sometimes Non-Compliant Is Okay

Different isn’t necessarily wrong if all parties agree (and with appropriate follow-up).
Last month’s column (February 2015) addressed the potential situation where the design engineers specify a change to a system which has already passed its commissioning functional performance test.
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COMMISSIONING

Commissioning Action Lists: Keeping Them Under Control, Part 2

Some coordinated drudgery up front will prevent unwanted drama on the back end.
This month’s column is a continuation of my September and October columns regarding excessively long commissioning action lists (CALs). I will continue exploring the multiple reasons why the CAL might get out of hand, who might be responsible, and what the commissioning professional might do about it.
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Commissioning

Designer Copy/Paste

Don’t let this all too common practice create confusing specifications.
In December 2013, this Commissioning column addressed the challenges posed by controls contractors who “cut and paste” the design engineer’s sequences of operation into the controls submittal.
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Multimedia

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ES Gallery: Snapshots & Systems

Check out highlights from projects featured in our magazine this year!
4/15/15 11:00 am EST

On-Site Critical Power Generation for the Data Center & Other Critical Facilities

Can your data center survive a 48 hour outage? Can you continue to pay escalating utility power bills in the years to come? On site "critical" power generation is the inevitable answer for these challenges. 

Engineered Systems Magazine

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2015 March

Check out the March issue of ES with the cover story: High-Rise Overhaul, and features: Selecting & Installing Fire And Smoke Dampers To Ensure Code Compliance; Energy Optimization In Existing Buildings; and The Skinny On Reactors For VFDs.
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Tomorrow's Environment Podcast

This series from longtime columnist and chronic forward-thinker Howard McKew covers a lot of ground -- from retrocommissioning to systems training, on toward checklists for drawings and tips for meeting minutes. Click HERE to be taken to the podcast page!

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