North Central / Regional Reports

Trane Equips Illinois Complex, Helping It Achieve ‘Ultimate Flexibility’

July 26, 2002
/ Print / Reprints /
ShareMore
/ Text Size+
The DuPage County Governmental Complex is comprised of 12 buildings totaling 1.5 million square feet.
WHEATON, IL — “On the hottest day of the year, we’ve got 1,000 tons of chiller capacity in reserve. That helps me feel secure,” said Dan Baran, facilities supervisor of power plant operations at the DuPage County Governmental Complex in Wheaton. Baran was discussing the recent upgrade of the chiller plant and chilled water distribution system on the government campus.

The upgrade project involved replacing three single-stage centrifugal chillers ranging in age from 18 to 30 years and totaling 3,300 tons of capacity. According to Baran, the reasons for replacement were a desire for greater efficiency, concern about the R-11, -12 and -114 refrigerants used in the old machines, and an increasing concern about unit reliability because of age.

The plant includes 1,000- and 2,000-ton centrifugal chillers and a 1,150-ton absorption chiller.
Electric chillers were chosen for the upgrade, including a 1,000-ton Trane CenTraVac™ centrifugal chiller and a 2,000-ton Trane duplex CenTraVac machine. Also used is a 1,150-ton Trane Horizon™ two-stage absorption chiller. All chillers are connected in parallel and can be operated in any combination, serving cooling load directly or delivering chilled water to the 1.2 million-gallon chilled water storage tank.

Another important part of the upgrade was the installation of a system-wide Tracer Summit?control system. This allows optimization of the chiller plant and distribution system, and provides an opportunity to observe system conditions from the chiller plant control room or from remote locations.

According to Baran, the system flexibility allows him to quickly respond to changing energy prices or supply conditions. He added, “The system performs like a champ.”

Publication date: 07/29/2002

Did you enjoy this article? Click here to subscribe to The NEWS Magazine

You must login or register in order to post a comment.

Multimedia

Videos

Image Galleries

2014 MCAA Annual Convention

Scenes from the 2014 MCAA Annual Convention in Scottsdale, Ariz.

Podcasts

NEWSmakers: Julian Scadden

Training is an ongoing process. Julian will discuss how you can generate maximum return on time and energy invested training by following a three part process. Listen to this podcast to get expert tips on training, tracking and follow up. 

More Podcasts

ACHRNEWS

NEWS 04-21-14 cover

2014 April 21

Check out the weekly edition of The NEWS today!

Table Of Contents Subscribe

SERVICE CALLS POLL

Which statement on service calls best applies to your business?
View Results Poll Archive

HVACR INDUSTRY STORE

plumbing-hvac.gif
2014 National Plumbing & HVAC Estimator

Every plumbing and HVAC estimator can use the cost estimates in this practical manual!

More Products

Clear Seas Research

 

Clear Seas ResearchWith access to over one million professionals and more than 60 industry-specific publications, Clear Seas Research offers relevant insights from those who know your industry best. Let us customize a market research solution that exceeds your marketing goals.

DON'T MISS A THING

Magazine image
 
Register today for complete access to ACHRNews.com. Get full access to the latest features, Extra Edition, and more.

STAY CONNECTED

facebook icontwitter iconyoutube iconLinkedIn i con