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Topic: HVAC controls & strategies
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Boosting the Performance of RTUs
Converting to Single-Zone VAV
April 13, 2012
Several new retrofit devices are available for single-zone RTU air conditioners, with at least one device demonstrating demand savings of 41 percent and annual energy savings of 52 percent. This video Tech Brief describes how these devices can also monitor unit performance, enabling additional savings. ...
Content type: Tech Brief | Document ID: EMN-TB-2 | Author: Peter Criscione

Hybrid Ground-Source Heat Pumps
March 20, 2012
Ground-source heat pumps are often prohibitively expensive because they're sized to meet the peak heating or cooling loads for commercial buildings. This video Tech Brief explains how hybrid models downsize the ground heat exchanger and use small supplemental cooling towers or boilers to meet peak load. ...
Content type: Tech Brief | Document ID: EMN-TB-1 | Author: Mary Horsey

New Doors Are Opening for Widespread Economizer Cooling in Data Centers
January 19, 2011
A recent analysis of data center operation by a leading engineer is challenging the widely accepted belief that data centers need tight temperature and humidity control. The study concludes that loosening these controls could translate into as much as a 63 percent savings in cooling energy.
Content type: Research Brief | Document ID: TAS-RB-27 | Author: Peter Criscione
