When you have to individually go verify whether 128 air curtains meant to ensure air balance in the original design’s branch ductwork are still there or not, you’re not having an easy time of it.
April 1, 2014
One of the worst-performing buildings I’ve had the pleasure to study was a 375,000-sq-ft laboratory building at a Midwest university.Read More
Updated codes continue the push for better controls work as high performance edges further into the mainstream.
March 1, 2014
At one time, it might have been acceptable to view controls as a “necessary evil” with little attention given to the details of design including sequences and commissioningRead More
How many health care facilities are limping along in terms of mechanical performance but could be running better than ever with one committed round of treatment?
March 1, 2014
Our BAS columnist makes a house call to prescribe one method of applying retrofit expertise, including the success story of a hospital with mysteries or maladies that required attention in VAV and chillers, air handling strategies, OR ventilation, and beyond.Read More
Choosing not to sample every system can be a gamble, but here are some ways to lower your risk.
March 1, 2014
Over the past two months, this column has addressed the issue of sampling systems for field functional performance testingRead More
So you’ve decided on your sample size. What next? What happens when a system failure is found?
February 1, 2014
Last month, this column addressed the need for (and philosophy behind) sample testing certain systems when 100% functional performance testing (FPT) is impractical from a time and/or budget perspective.Read More
Testing it all typically isn’t an option. How to determine what (and how many) to check?
January 2, 2014
In the standard commissioning process, there are two primary technical activities that occur on site at the end of construction and prior to systems acceptance by the owner.Read More
Energy savings isn’t the only factor when considering a controls retrofit.
December 1, 2013
Much of our work involves energy studies and retrofits to commercial buildings.Read More
Read about various examples — from a 40,000-sq-ft raised-floor environment to a 5,000-sq-ft facility within a facility — to get a good view of the battlefield and make your next campaign against heat and inefficiency a little smarter.
March 29, 2013
The range of HVAC design options associated with the various types of data centers has expanded and evolved over the past 30 years in order to keep pace with the wide array of server transformations and deployment strategies.Read More
June 3, 2012
One more case where all seems fine … but isn’t.Read More
May 2, 2012
Are you in a game of HVAC hide and seek that you don’t know you’re in?Read More