ARI Issues New Efficiency Guideline
Dec 9, 2003
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The Air Conditioning and Refrigeration Institute (ARI) has issued a new guideline on energy recovery ventilation (ERV). Guideline V, Calculating the Efficiency of Energy Recovery Ventilation and its Effect on Efficiency and Sizing of Building HVAC Systems, was developed to help ensure that ERV is fully utilized and properly integrated into the HVAC system.

According to the ARI, ERV conserves energy and reduces electricity demand associated with the heating, cooling humidification, and dehumidification of buildings. ERV technology is said to be associated with significant benefits and is currently available on a wide variety of product platforms.

"ARI Guideline V is a first step in describing the combined efficiency of air conditioning systems that utilize more than one heating or cooling technology to meet the building load," said Bede Wellford, vice president of Marketing for Airxchange, Inc., an energy efficient recovery company. "This Guideline provides accurate information on equipment sizing and system efficiency that is essential for design, product selection, and system optimization when energy recovery is used."

More information about the new guideline is available for download at

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