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Commissioning

Troubleshooting Systems With Onboard Equipment Controllers

October 3, 2012
Skimpy interface with BAS means more points of contention.
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Is Systems Integration Getting Worse?

August 28, 2012
The latest "progress" has yielded its own growing pains and pressures.
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Trend Analysis Summary

June 3, 2012
One more case where all seems fine … but isn’t.
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Rooftop Unit Trend Analysis

May 2, 2012
Why did last month’s boiler system have the summertime blues?
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Heating Hot Water System Trend Analysis

March 26, 2012
Could detecting a manual override suggest deeper problems?
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Critical Air-Handling System Trend Analysis

October 31, 2011
This is the second in a series of columns in which I am demonstrating examples of systems performance information that can be gleaned from trend log analysis. In these columns, I introduce a system or sub-system, show a trend graph, and then leave it up to the reader to discover the operational “issue” illustrated in the graph. The answer will be given at the start of the subsequent month’s column.
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PARKING GARAGE MAKEUP AIR — Heating Trend Analysis

October 4, 2011
This is the first in a series of columns in which I plan to demonstrate examples of systems performance information that can be gleaned from trend log analysis. Whether the trended data comes from a BAS or from portable dataloggers, the analysis is the same.
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Commissioning: TREND Logs- Worth the effort?

September 6, 2011
Using data trend logs to supplement in-field functional performance testing (FPT) has always been an option in the commissioning process, particularly for HVAC systems controlled by DDC systems. As DDC system trending capabilities and computer hardware storage capacities have improved substantially over the past few years, I propose that trend logs be given a more prominent place in the commissioning toolbox.
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Commissioning: Equipment Startup And Commissioning

August 1, 2011
The once fairly calm phase could now be a key to nipping integration issues in the bud.
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Commissioning: Equipment And Controls Integration

July 1, 2011
We still face plenty of ways for start-up to be a let down.
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How to Calculate Backup Power Supply Requirements for Your Facility

On-Demand This webinar reviews how to determine power requirements of facility loads; electrical characteristics and impact of different types of loads such as large motors and UPS systems on power supply sizing; acceptable power sources and other constraints applied by building codes; and how software tools can be used to simplify the process of calculating backup power requirements.  

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Design Flaws

Following up on Howard McKew's April "Tomorrow's Environment" column: Have you ever thought twice about reporting problems with another firm's design? What did you do?
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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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