Technical

Replacing a Steam Boiler – Successfully

October 9, 2006
When an existing steam boiler fails and needs replacing, obviously a new one must be installed. And that's when the adventure begins. The first thing to do is find out why the old boiler failed.
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The Benefits of Ice Thermal Storage

September 18, 2006
Cooling with ice thermal storage can be the most cost-effective, reliable system approach to cooling offices, schools, hospitals, malls, and other buildings. These systems are also environmentally friendly because they help lower energy consumption and reduce greenhouse gas emissions.
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Measuring Duct System Performance

September 4, 2006
It is important to verify correct control of an HVAC air system. A balanced supply and exhaust will help ensure proper ventilation by meeting minimum air exchange rates, removing airborne contaminants, and reducing operating costs.
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Refrigeration Fault Detection and Diagnosis

August 21, 2006
Research has led to new ways for analyzing and using sensor information, and we now have algorithms to predict with some certainty when a specific kind of equipment malfunction will occur.
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Are Open Standard Protocols Still Smart Investments?

August 7, 2006
This article reviews the reasons open standard protocols were, and still are, desirable, as well as the benefits we had hoped to realize from their successful application. Most importantly this article describes how you can assist the building owner in attaining many of the expected benefits from an open standard protocol.
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Fan Safety

July 24, 2006
HVAC technicians work on fans in many ways. They install fans, measure fan performance, and adjust fan speed. This article provides important advice on how to work safely with fans.
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Using Air Intake Filtration to Optimize School IAQ

July 10, 2006
On air-handling units, air intake filtration increases the life of internal filters. On air-cooled chillers and condenser coils, it prevents debris from getting into the coils. On cooling towers, it isolates debris on the outside of the tower.
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What Happens When a Building Turns Green?

June 26, 2006
Typically, green buildings save close to 30 percent of the energy and 50 percent of the water that buildings of comparable size waste. Those occupying these buildings claim improved health and lower utility bills.
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Keeping Cool With Outdoor Air: Airside Economizers

June 12, 2006
This article reviews ASHRAE Standard 90.1's requirements for airside economizers and discusses the underlying design decisions and benefits of effective airside economizer systems.
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Advantages of Closed Circuit Cooling Towers

May 29, 2006
A closed system protects the quality of the process fluid and reduces system maintenance at a slightly higher initial cost. When deciding which system is best for an application, several factors should be considered.
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